U.S. patent application number 16/261980 was filed with the patent office on 2019-08-01 for treatment liquid composition for ink jet pigment textile printing, treatment liquid composition set for ink jet pigment textile .
This patent application is currently assigned to SEIKO EPSON CORPORATION. The applicant listed for this patent is SEIKO EPSON CORPORATION. Invention is credited to Kosuke CHIDATE, Toshiyuki MIYABAYASHI, Masakazu OHASHI.
Application Number | 20190234015 16/261980 |
Document ID | / |
Family ID | 65268882 |
Filed Date | 2019-08-01 |
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United States Patent
Application |
20190234015 |
Kind Code |
A1 |
CHIDATE; Kosuke ; et
al. |
August 1, 2019 |
TREATMENT LIQUID COMPOSITION FOR INK JET PIGMENT TEXTILE PRINTING,
TREATMENT LIQUID COMPOSITION SET FOR INK JET PIGMENT TEXTILE
PRINTING, AND INK JET TEXTILE PRINTING METHOD
Abstract
A treatment liquid composition for ink jet pigment textile
printing according to the invention is used by being attached to a
fabric and contains a cationic compound, a nonionic fluorine-based
surfactant, a resin particle, and water.
Inventors: |
CHIDATE; Kosuke;
(Shiojiri-shi, JP) ; OHASHI; Masakazu;
(Shiojiri-shi, JP) ; MIYABAYASHI; Toshiyuki;
(Shiojiri-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SEIKO EPSON CORPORATION |
Tokyo |
|
JP |
|
|
Assignee: |
SEIKO EPSON CORPORATION
Tokyo
JP
|
Family ID: |
65268882 |
Appl. No.: |
16/261980 |
Filed: |
January 30, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D06P 1/5285 20130101;
D06P 5/30 20130101; D06P 3/34 20130101; D06P 3/52 20130101; D06P
1/6735 20130101; D06P 1/5271 20130101 |
International
Class: |
D06P 5/30 20060101
D06P005/30; D06P 3/52 20060101 D06P003/52 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 31, 2018 |
JP |
2018-014731 |
Claims
1. A treatment liquid composition for ink jet pigment textile
printing, which is used by being attached to a fabric in ink jet
pigment textile printing, the treatment liquid composition for ink
jet pigment textile printing comprising: a cationic compound; a
nonionic fluorine-based surfactant; a resin particle; and
water.
2. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the fabric contains
polyester or polyester mixed yarn.
3. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the cationic compound is a
polyvalent metal salt, an organic acid, or a cationic resin.
4. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the cationic compound
contains either calcium nitrate or calcium chloride.
5. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the nonionic fluorine-based
surfactant has an HLB value within a range of 6 or more and 15 or
less.
6. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the nonionic fluorine-based
surfactant has a polyoxyethylene group and an alkyl fluoride
group.
7. The treatment liquid composition for ink jet pigment textile
printing according to claim 1, wherein the resin particle is a
nonionic or cationic resin particle.
8. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 1; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
9. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 2; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
10. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 3; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
11. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 4; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
12. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 5; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
13. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 6; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
14. An ink jet pigment textile printing set comprising: the
treatment liquid composition for ink jet pigment textile printing
according to claim 7; and a pigment textile printing ink jet ink
composition containing a pigment, a resin particle, and water.
15. The ink jet pigment textile printing set according to claim 8,
wherein the resin particle contained in the pigment textile
printing ink jet ink composition contains a polycarbonate-based
urethane resin.
16. The ink jet pigment textile printing set according to claim 8,
wherein the pigment textile printing ink jet ink composition
further contains a fluorine-based surfactant.
17. An ink jet pigment textile printing method comprising:
attaching a pigment textile printing ink jet ink composition to a
region where the treatment liquid composition for ink jet pigment
textile printing according to claim 1 is attached by an ink jet
method.
18. An ink jet pigment textile printing method comprising:
attaching a pigment textile printing ink jet ink composition to a
region where the treatment liquid composition for ink jet pigment
textile printing according to claim 2 is attached by an ink jet
method.
19. An ink jet pigment textile printing method comprising:
attaching a pigment textile printing ink jet ink composition to a
region where the treatment liquid composition for ink jet pigment
textile printing according to claim 3 is attached by an ink jet
method.
20. An ink jet pigment textile printing method comprising:
attaching a pigment textile printing ink jet ink composition to a
region where the treatment liquid composition for ink jet pigment
textile printing according to claim 4 is attached by an ink jet
method.
Description
BACKGROUND
1. Technical Field
[0001] The present invention relates to a treatment liquid
composition for ink jet pigment textile printing, a treatment
liquid composition set for ink jet pigment textile printing, and an
ink jet pigment textile printing method.
2. Related Art
[0002] Dyeing (textile printing) of fabrics and the like has been
performed using an ink jet recording method. As a recording method
for fabrics (textiles or nonwoven fabrics), a screen textile
printing method, a roller textile printing method, and the like
have been used heretofore. However, it is advantageous to apply an
ink jet recording method from the viewpoint of wide-variety
small-lot production properties, immediate printability, and the
like, and therefore various examinations have been made.
[0003] In a textile printing ink jet recording method, an
examination has been made also for a so-called ink jet pigment
textile printing method (hereinafter also simply referred to as
"pigment textile printing") including textile printing a fabric by
compounding a pigment and a fixing resin with an ink composition
(hereinafter also simply referred to as "ink"). In the pigment
textile printing, due to the fact that the ink permeates into the
fabric, the color developability decreases in some cases, and thus
an improvement of the color developability has been demanded.
Particularly in a polyester or polyester mixed fabric, the ink is
more likely to sink into the fabric, and therefore it is difficult
to obtain good color development.
[0004] Then, it is known to use a treatment liquid, such as a
pretreatment agent, in the pigment textile printing to physically
fix the pigment to the surface of fibers or the like of the fabric
for the purpose of an improvement of the color developability of a
printed textile to be obtained (for example, see
JP-A-2008-266853).
[0005] However, in an ink jet pigment textile printing method using
a treatment liquid and a pigment textile printing ink jet ink
composition, a further improvement of the color developability has
been demanded.
SUMMARY
[0006] An advantage of some aspects of the invention is to provide
a treatment liquid composition for ink jet pigment textile
printing, a treatment liquid composition set for ink jet pigment
textile printing, and an ink jet pigment textile printing method
which provide a printed textile excellent in color
developability.
[0007] The invention has been made in order to solve at least
partially the above-described problems and can be realized as the
following aspects or application examples.
APPLICATION EXAMPLE 1
[0008] A treatment liquid composition for ink jet pigment textile
printing according to a first aspect of the invention is a
treatment liquid composition which is used by being attached to a
fabric in ink jet pigment textile printing and which contains a
cationic compound, a nonionic fluorine-based surfactant, a resin
particle, and water.
[0009] According to Application Example 1, the permeation of an ink
into the fabric is suppressed, and thus the sinking of the pigment
into the fabric is suppressed by an operation of holding the ink on
the surface of the fabric by the nonionic fluorine-based surfactant
attached to the fabric. Moreover, due to the fact that the
surfactant is nonionic, unevenness is hard to occur in color
development. Thus, according to Application Example 1, due to the
fact that the treatment liquid composition for ink jet pigment
textile printing attached to the fabric contains the nonionic
fluorine-based surfactant, a printed textile excellent in color
developability is obtained.
APPLICATION EXAMPLE 2
[0010] In the application example above, the fabric can contain
polyester or polyester mixed yarn.
[0011] According to Application Example 2, a printed textile
excellent in color developability is obtained also in pigment
textile printing to a fabric containing polyester or polyester
mixed yarn in which an ink easily sinks downward by the operation
of holding the ink on the fabric surface by the nonionic
fluorine-based surfactant.
APPLICATION EXAMPLE 3
[0012] In the application example above, the cationic compound can
be a polyvalent metal salt, an organic acid, or a cationic
resin.
[0013] According to Application Example 3, due to the fact that the
cationic compound is a polyvalent metal salt or an organic acid,
unevenness is hard to occur in color development, and thus a
printed textile excellent in color developability is obtained.
APPLICATION EXAMPLE 4
[0014] In the application example above, the cationic compound can
contain either calcium nitrate or calcium chloride.
[0015] According to Application Example 4, due to the fact that the
cationic compound is either calcium nitrate or calcium chloride,
unevenness is hard to occur in color development, and thus printed
textile excellent in color developability is obtained.
APPLICATION EXAMPLE 5
[0016] In the application example above, the nonionic
fluorine-based surfactant can have an HLB value within the range of
6 or more and 15 or less.
[0017] According to Application Example 5, due to the fact that the
HLB value of the nonionic fluorine-based surfactant is within the
range of 6 or more and 15 or less, the permeation of an ink into
the fabric is suppressed, and thus a printed textile more excellent
in color developability is obtained.
APPLICATION EXAMPLE 6
[0018] In the application example above, the nonionic
fluorine-based surfactant can have a polyoxyethylene group and an
alkyl fluoride group.
[0019] According to Application Example 6, due to the fact that the
nonionic fluorine-based surfactant has the polyoxyethylene group
which is a hydrophilic group and the alkyl fluoride group which is
a hydrophobic group, the permeation of an ink into the fabric is
further suppressed, and thus the sinking of the pigment into the
fabric is suppressed, so that a printed textile more excellent in
color developability is obtained.
APPLICATION EXAMPLE 7
[0020] In the application example above, the resin particle can be
a nonionic or cationic resin particle.
[0021] According to Application Example 7, due to the fact that the
resin particle is a nonionic resin particle, a printed textile
excellent in color developability and rubbing fastness is obtained
particularly in textile printing to cotton. Moreover, according to
Application Example 7, due to the fact that the resin particle is a
cationic resin particle, a printed textile excellent in color
developability and rubbing fastness is obtained in textile printing
particularly to a fabric containing polyester or polyester mixed
yarn.
APPLICATION EXAMPLE 8
[0022] An ink jet pigment textile printing set according to a
second aspect of the invention contains the treatment liquid
composition for ink jet pigment textile printing according to any
one of Application Example 1 to Application Example 7 and a pigment
textile printing ink jet ink composition containing a pigment, a
resin particle, and water.
[0023] Application Example 8 can provide a pigment textile printing
ink jet ink composition set which provides a printed textile
excellent in color developability and provides a printed textile
excellent in color developability particularly in two-layer
printing of performing pigment textile printing using the pigment
textile printing ink jet ink composition, and further performing
pigment textile printing using an ink containing a chromatic color
pigment.
APPLICATION EXAMPLE 9
[0024] In the application example above, the resin particle
contained in the pigment textile printing ink jet ink composition
can contain a polycarbonate-based urethane resin.
[0025] According to Application Example 9, there is a tendency that
the fastness of a printed textile to be obtained is likely to be
poor when the nonionic fluorine-based surfactant is used. However,
by the use of polycarbonate-based urethane resin particles as the
resin particles, the pigment is likely to be fixed to the surface
of a fabric and, even when the nonionic fluorine-based surfactant
is used, a printed textile excellent in color developability and
rubbing fastness is obtained.
APPLICATION EXAMPLE 10
[0026] In the application example above, the pigment textile
printing ink jet ink composition can further contain a
fluorine-based surfactant.
[0027] According to Application Example 10, due to the fact that
the pigment textile printing ink jet ink composition further
contains a fluorine-based surfactant, the permeability of an ink
into the fabric is further controlled, and thus a printed textile
excellent in color developability is obtained.
APPLICATION EXAMPLE 11
[0028] An ink jet pigment textile printing method according to a
third aspect of the invention includes attaching a pigment textile
printing ink jet ink composition to a region where the treatment
liquid composition for ink jet pigment textile printing according
to any one of Application Example 1 to Application Example 7 is
attached by an ink jet method.
[0029] According to Application Example 11, in order to attach the
pigment textile printing ink jet ink composition onto the treatment
liquid composition for ink jet pigment textile printing of the
application example above, the permeation of the ink into a fabric
is suppressed. Moreover, ink components are coagulated by a
reaction or an interaction of the cationic compound of the
treatment liquid composition for ink jet pigment textile printing
and the ink components. Thus, a printed textile excellent in color
development properties is obtained.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The invention will be described with reference to the
accompanying drawing, wherein like numbers reference like
elements.
[0031] FIGURE is a schematic perspective view of a textile printing
apparatus performing an ink jet pigment textile printing method
according to this embodiment.
DESCRIPTION OF EXEMPLARY EMBODIMENTS
[0032] Hereinafter, some embodiments of the invention are
described. The embodiments described below describe examples of the
invention. The invention is not limited to the following
embodiments at all and also includes various modifications to be
implemented without altering the gist of the invention. All the
configurations described below are not necessarily indispensable
configurations of the invention.
[0033] Hereinafter, with respect to a treatment liquid composition
for ink jet pigment textile printing, a treatment liquid
composition set for ink jet pigment textile printing, and an ink
jet pigment textile printing method according to this embodiment,
the configuration of a textile printing apparatus capable of
implementing the same, a pigment textile printing ink jet ink
composition (hereinafter also referred to as "pigment textile
printing ink", "ink composition", or "ink") configuring the
treatment liquid composition set for ink jet pigment textile
printing (hereinafter also referred to as "treatment liquid set")
containing the treatment liquid composition for ink jet pigment
textile printing together with the treatment liquid composition for
ink jet pigment textile printing, the treatment liquid composition
for ink jet pigment textile printing (hereinafter also referred to
as "treatment liquid), the treatment liquid composition set for ink
jet pigment textile printing, a fabric to which the ink jet pigment
textile printing method is performed, and the ink jet pigment
textile printing method.
1. Textile Printing Apparatus
[0034] First, an example of a textile printing apparatus to be used
in this embodiment is described with reference to the drawing. The
textile printing apparatus to be used in this embodiment is not
limited to the following aspect.
[0035] The textile printing apparatus to be used in this embodiment
is described taking an on-carriage type printer in which an ink
cartridge is mounted in a carriage as an example. However, the
textile printing apparatus is not limited to the on-carriage type
printer and may be an off-carriage type printer in which an ink
cartridge is not mounted in a carriage and is fixed to the
outside.
[0036] A printer to be used for the following description is a
serial printer in which a print head is mounted in a carriage
moving in the predetermined direction and which discharges droplets
onto a recording medium by the movement of a head in connection
with the movement of the carriage. The textile printing apparatus
to be used in the invention is not limited to the serial printer
and may be a line printer in which a head is formed to be larger
than the width of a recording medium and which discharges droplets
onto a recording medium without the movement of a print head.
[0037] In a FIGURE used for the following description, the scale of
each member is changed as appropriate so that each member can be
recognized.
[0038] As the textile printing apparatus, an ink jet printer
(hereinafter also referred to as "printer") mounted with an ink jet
head illustrated in FIGURE is mentioned, for example. As
illustrated in FIGURE, a printer 1 has a carriage 4 which is
mounted with an ink jet head 2 and to which an ink cartridge 3 is
detachably attached, a platen 5 which is disposed below the ink jet
head 2 and to which a fabric M which is a recording medium is
transported, a heating mechanism 6 for heating the fabric M, a
carriage moving mechanism 7 causing the carriage 4 to move in the
medium width direction of the fabric M, and a medium feeding
mechanism 8 transporting the fabric M in the medium feeding
direction. Moreover, the printer 1 has a control device CONT
controlling an operation of the whole printer 1. The medium width
direction is a main scanning direction (head scanning direction).
The medium feeding direction is a subscanning direction (direction
orthogonal to the main scanning direction).
[0039] The ink jet head 2 is a unit for attaching an ink to the
fabric M and is provided with a plurality of nozzles (not
illustrated) discharging the ink on a surface opposite to the
fabric M to which the ink is attached. The plurality of nozzles is
arranged in an array shape, and thus a nozzle surface is formed on
the nozzle plate surface.
[0040] Examples of systems of discharging an ink from nozzles
include, for example, a system of applying a strong electric field
between the nozzles and an accelerating electrode placed in front
of the nozzles to continuously discharge an ink in the form of
droplets from the nozzles and discharging the ink droplets
corresponding to a recording information signal while the ink
droplets are flying between deflecting electrodes (electrostatic
suction system); a system of applying a pressure to a treatment
liquid with a small pump to mechanically vibrate nozzles with a
quartz oscillator or the like to thereby forcibly discharge ink
droplets; a system of simultaneously applying a pressure and a
recording information signal to an ink with a piezoelectric element
to discharge and record ink droplets (piezoelectric system); a
system of heating and foaming an ink with a microelectrode
according to a recording information signal to discharge and record
ink droplets (thermal jet system); and the like.
[0041] As the ink jet head 2, both a line type ink jet head and a
serial type ink jet head are usable and the serial type ink jet
head is used in this embodiment.
[0042] Herein, the textile printing apparatus provided with the
serial type ink jet head performs recording by performing scanning
(path) of discharging an ink while moving an ink jet head for
recording relatively to a recording medium several times. Specific
examples of the serial type ink jet head include one in which an
ink jet head is mounted in a carriage moving in the width direction
of a recording medium (direction crossing the transporting
direction of the recording medium) and which discharges droplets
onto the recording medium by the movement of the ink jet head in
connection with the movement of the carriage.
[0043] On the other hand, the textile printing apparatus provided
with the line type ink jet head performs recording by performing
scanning (path) of discharging an ink while moving the ink jet head
relatively to a recording medium once. Specific examples of the
line type ink jet head include one in which the ink jet head is
formed to be larger than the width of a recording medium and which
discharges droplets onto the recording medium without the movement
of the ink jet head.
[0044] The ink cartridge 3 supplying an ink to the ink jet head 2
contains four independent cartridges. Each of the four cartridges
is filled with a different kind of ink, for example. The ink
cartridge 3 is detachably attached to the ink jet head 2. In the
example of FIGURE, the number of the cartridges is four but a
desired number of cartridges can be mounted without being limited
thereto.
[0045] The carriage 4 is attached in a state of being supported
with a guide rod 9 which is a support member installed in the main
scanning direction. The carriage 4 moves in the main scanning
direction along the guide rod 9 by the carriage moving mechanism 7.
Although the example of FIGURE illustrates one in which the
carriage 4 moves in the main scanning direction, the invention is
not limited thereto and one moving in the subscanning direction in
addition to the movement in the main scanning direction may be
acceptable.
[0046] The installation position of the heating mechanism 6 is not
particularly limited insofar as the heating mechanism 6 is provided
at a position where the fabric M can be heated. In the example of
FIGURE, the heating mechanism 6 is disposed at a position which is
located on the platen 5 and in which the heating mechanism 6 faces
the ink jet head 2. Thus, when the heating mechanism 6 is disposed
at the position where the heating mechanism 6 faces the ink jet
head 2, the attachment position of droplets in the fabric M can be
certainly heated, and therefore the droplets attached to the fabric
M can be efficiently dried.
[0047] For the heating mechanism 6, a print heater mechanism of
bringing the fabric M into contact with a heat source for heating,
a mechanism of emitting infrared rays, microwaves (electromagnetic
waves having a maximum wavelength around 2,450 MHz), or the like, a
drier mechanism spraying warm air, and the like are usable, for
example.
[0048] The heating of the fabric M by the heating mechanism 6 is
performed before or when the droplets discharged from the nozzles
of the ink jet head 2 are attached to the fabric M. The control
(for example, the timing of performing the heating, heating
temperature, heating time, and the like) of the conditions for the
heating is performed by the control device CONT.
[0049] The heating of the fabric M by the heating mechanism 6 is
performed so that the fabric M holds the temperature range of
35.degree. C. or more and 65.degree. C. or less from the viewpoint
of an improvement of the wettability and spreadability,
permeability, and drying property, discharge stability, and the
like of an ink. Herein, the temperature for heating the fabric M
means the temperature of the surface of the recording surface of
the fabric M in heating.
[0050] The printer 1 may further have a second heating mechanism
which is not illustrated besides the heating mechanism 6. In that
case, the second heating mechanism is disposed on the downstream
side in the transporting direction of the fabric M relative to the
heating mechanism 6. The second heating mechanism heats the fabric
M after the fabric M is heated by the heating mechanism 6, i.e.,
after the droplets discharged from the nozzles are attached to the
fabric M. Thus, the drying property of the droplets of the ink
attached to the fabric M is improved. For the second heating
mechanism, any one of the mechanisms described for the heating
mechanism 6 (for example, drier mechanism, heat press machine, and
the like) is usable. The heating by the second heating mechanism is
preferably performed so that the fabric M holds the temperature
range of 100.degree. C. or more and 200.degree. C. or less.
[0051] A linear encoder 10 detects the position in the main
scanning direction of the carriage 4 by a signal. The detected
signal is transmitted to the control device CONT as position
information. The control device CONT recognizes the scanning
position of the recording head 2 based on the position information
from the linear encoder 10 to control a recording operation
(discharge operation) by the recording head 2 and the like.
Moreover, the control device CONT is configured so as to be able to
variably control the movement speed of the carriage 4.
2. Pigment Textile Printing Ink Jet Ink Composition
[0052] The pigment textile printing ink jet ink composition to be
used in this embodiment contains a pigment, resin particles, a
nonionic fluorine-based surfactant, and water and is used by being
attached to a fabric. Hereinafter, the pigment textile printing ink
jet ink composition is described.
[0053] The pigment textile printing ink jet ink composition to be
used in this embodiment may configure the ink jet pigment textile
printing set together with the treatment liquid composition for ink
jet pigment textile printing described later. When the pigment
textile printing ink jet ink composition set to be used in this
embodiment contains two or more of the pigment textile printing ink
jet ink compositions, it is preferable that one of the pigment
textile printing ink jet ink compositions is a white pigment
textile printing ink jet ink composition containing a white pigment
as the pigment and the other pigment textile printing ink jet ink
compositions are chromatic color pigment textile printing ink jet
ink compositions containing a chromatic color pigment. In this
case, two-layer printing of performing color printing on a white
base is enabled in the ink jet pigment textile printing method
described later.
2.1. Pigment
[0054] The pigment textile printing ink jet ink composition to be
used in this embodiment contains a pigment. Due to the attachment
of the pigment to a fabric, the fabric is textile printed, so that
a printed textile (printed matter) is formed.
[0055] As the pigment, both organic pigments and inorganic pigments
are usable and a pigment of any color is usable. In the case of a
set containing a plurality of pigment textile printing ink jet ink
compositions, it is preferable that one of the plurality of pigment
textile printing ink jet ink compositions contains a white pigment
as the pigment and the other pigment textile printing ink jet ink
compositions contain chromatic color pigments.
[0056] Examples of the white pigment include, but are not limited
to the following substances, white inorganic pigments, such as
titanium oxide, zinc oxide, zinc sulfide, antimony oxide, and
zirconium dioxide, and the like. In addition to the white inorganic
pigments, white organic pigments, such as white hollow resin
particles and polymer particles, are also usable.
[0057] Examples of the Color Index (C.I.) of the white pigment
include, but are not limited to the following substances, C.I.
Pigment White 1 (basic lead carbonate), 4 (zinc oxide), 5 (mixture
of zinc sulfide and barium sulfate), 6 (titanium oxide), 6:1
(titanium oxide containing other metal oxides), 7 (zinc sulfide),
18 (calcium carbonate), 19 (clay), 20 (mica titanium), 21 (barium
sulfate), 22 (natural barium sulfate), 23 (gloss white), 24
(alumina white), 25 (gypsum), 26 (magnesium oxide-silicon oxide),
27 (silica), 28 (anhydrous calcium silicate), and the like, for
example. Among the above, titanium oxide is preferable as the white
pigment because the color developability, the concealing
properties, and the visibility (brightness) are excellent and a
good dispersion particle size is obtained.
[0058] Among the titanium oxides, a rutile type titanium oxide
common as the white pigment is preferable. The rutile type titanium
oxide may be produced by oneself or may be a commercially available
substance. Examples of industrial production methods when the
rutile type titanium oxide (powdered) is produced by oneself
include known sulfuric acid method and chlorine method. Examples of
commercially-available items of the rutile type titanium oxide
include, for example, rutile types, such as Tipaque (Registered
Trademark) CR-60-2, CR-67, R-980, R-780, R-850, R-980, R-630,
R-670, and PF-736 (all Trade Names, manufactured by Ishihara Sangyo
Kaisha, Ltd.).
[0059] Examples of the chromatic color pigments include pigments
except the white pigments mentioned above. As the pigments other
than the white pigments, although not limited to the following
substances, azo-based, phthalocyanine-based, dye-based, condensed
polycyclic-based, nitro-based, and nitroso-based organic pigments
(Brilliant Carmine 6B, Lake Red C, Watchung Red, Disazo Yellow,
Hansa Yellow, Phthalocyanine Blue, Phthalocyanine Green, Alkali
Blue, Aniline Black, and the like), metals, such as cobalt, iron,
chromium, copper, zinc, lead, titanium, vanadium, manganese, and
nickel, metal oxides and sulfides, carbon blacks (C.I. Pigment
Black 7), such as furnace carbon black, lamp black, acetylene
black, and channel black, and further inorganic pigments, such as
ocher, ultramarine, and Prussian blue, are usable, for example.
[0060] In more detail, examples of carbon black to be used as black
pigments include No. 2300, No. 900, MCF88, No. 33, No. 40, No. 45,
No. 52, MA7, MA8, MA100, No. 2200B, and the like (all manufactured
by Mitsubishi Chemical Corporation), Raven 5750, Raven 5250, Raven
5000, Raven 3500, Raven 1255, Raven 700, and the like (all
manufactured by Columbian Carbon Japan Ltd.), Regal 400R, Regal
330R, Regal 660R, Mogul L, Monarch 700, Monarch 800, Monarch 880,
Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch
1400, and the like (all manufactured by Cabot Corporation company),
Color Black FW1, Color Black FW2, Color Black FW2V, Color Black
FW18, Color Black FW200, Color Black 5150, Color Black S160, Color
Black 5170, Printex 35, Printex U, Printex V, Printex 140U, Special
Black 6, Special Black 5, Special Black 4A, and Special Black 4
(all manufactured by Degussa), and the like.
[0061] Examples of yellow pigments include C.I. Pigment Yellow 1,
2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 16, 17, 24, 34, 35, 37, 53,
55, 65, 73, 74, 75, 81, 83, 93, 94, 95, 97, 98, 99, 108, 109, 110,
113, 114, 117, 120, 124, 128, 129, 133, 138, 139, 147, 151, 153,
154, 167, 172, and 180, and the like.
[0062] Examples of magenta pigments include C.I. Pigment Red 1, 2,
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 22,
23, 30, 31, 32, 37, 38, 40, 41, 42, 48 (Ca), 48 (Mn), 57 (Ca),
57:1, 88, 112, 114, 122, 123, 144, 146, 149, 150, 166, 168, 170,
171, 175, 176, 177, 178, 179, 184, 185, 187, 202, 209, 219, 224,
and 245, C.I. Pigment Violet 19, 23, 32, 33, 36, 38, 43 and 50, and
the like.
[0063] Examples of cyan pigments include C.I. Pigment Blue 1, 2, 3,
15, 15:1, 15:2, 15:3, 15:34, 15:4, 16, 18, 22, 25, 60, 65, and 66,
C.I. Vat Blue 4 and 60, and the like.
[0064] Examples of pigments other than the black, yellow, magenta,
and cyan pigments include, for example, C.I. Pigment Green 7 and
10, C.I. Pigment Brown 3, 5, 25, and 26, C.I. Pigment Orange 1, 2,
5, 7, 13, 14, 15, 16, 24, 34, 36, 38, 40, 43, and 63, and the
like.
[0065] The pigments mentioned above may be used alone or in
combination of two or more kinds thereof.
[0066] The content of the pigment contained in the pigment textile
printing ink jet ink composition to be used in this embodiment
varies depending on the pigment type to be used and is preferably
1% by mass or more and 30% by mass or less, more preferably 3% by
mass or more and 15% by mass or less, and still more preferably 5%
by mass or more and 13% by mass or less based on the total mass
(100% by mass) of the ink from the viewpoint of securing good color
developability. Among the above, when the titanium oxide is used as
the pigment contained in the ink, the content of the titanium oxide
is preferably 3% by mass or more and 25% by mass or less and more
preferably 5% by mass or more and 20% by mass or less based on the
total mass of the ink because the titanium oxide is hard to
precipitate and has excellent concealing properties and color
reproducibility on a fabric having low brightness. The content is
more preferably 7% by mass or more and 15% by mass or less and
still more preferably 12% by mass or less.
[0067] In preparing the pigment textile printing ink jet ink
composition, a pigment dispersion liquid in which a pigment is
dispersed beforehand may be prepared, and then the obtained pigment
dispersion liquid may be added to and mixed with a dispersion
liquid of another material. Examples of methods for obtaining such
a pigment dispersion liquid include a method for dispersing a
self-dispersible pigment in a dispersant without using a
dispersant, a method for dispersing a pigment in a dispersant using
a polymer dispersant (resin dispersant), a method for dispersing a
surface-treated pigment in a dispersant, and the like.
Resin Dispersant
[0068] Examples of the resin dispersant include, but are not
particularly limited to, polyvinyl alcohols, polyvinyl
pyrrolidones, polyacrylic acids, an acrylic acid-acryl nitrile
copolymer, a vinyl acetate-acrylic acid ester copolymer, an acrylic
acid-acrylic acid ester copolymer, a styrene-acrylic acid
copolymer, a styrene-methacrylic acid copolymer, a
styrene-methacrylic acid-acrylic acid ester copolymer, a
styrene-.alpha.-methyl styrene-acrylic acid copolymer, a
styrene-.alpha.-methyl styrene-acrylic acid-acrylic acid ester
copolymer, a styrene-maleic acid copolymer, a styrene-maleic
anhydride copolymer, a vinyl naphthalene-acrylic acid copolymer, a
vinyl naphthalene-maleic acid copolymer, a vinyl acetate-maleic
acid ester copolymer, a vinyl acetate-crotonic acid copolymer, a
vinyl acetate-acrylic acid copolymer, and the like and salts
thereof, for example. Among the above, copolymers of monomers
having hydrophobic functional groups and monomers having
hydrophilic functional groups and polymers containing monomers
having both hydrophobic functional groups and hydrophilic
functional groups are particularly preferable. As the form of the
copolymer, the copolymer can be used in any form of a random
copolymer, a block copolymer, an alternating copolymer, and a graft
copolymer.
[0069] As the resin dispersant, commercially-available items are
also usable. Specifically, Joncryl 67 (weight average molecular
weight: 12,500, Acid value: 213), Joncryl 678 (weight average
molecular weight: 8,500, Acid value: 215), Joncryl 586 (Weight
average molecular weight: 4,600, Acid value: 108), Joncryl 611
(weight average molecular weight: 8,100, Acid value: 53), Joncryl
680 (weight average molecular weight: 4,900, Acid value: 215),
Joncryl 682 (weight average molecular weight: 1,700, Acid value:
238), Joncryl 683 (weight average molecular weight: 8,000, Acid
value: 160), Joncryl 690 (weight average molecular weight: 16,500,
Acid value: 240) (all Trade Name, manufactured by Basf Japan,
Inc.), and the like are mentioned.
2.2. Resin Particles
[0070] The pigment textile printing ink jet ink composition to be
used in this embodiment contains resin particles. The resin
particles are provided with a function of improving the fixability
of an image to be formed of the ink composition by forming a resin
coating film, and thus can improve the washing fastness and the
rubbing fastness of the image. As the resin particles, both one
formed into an emulsion state and one formed into a solution state
are usable and one formed into an emulsion state is preferable from
the viewpoint of suppressing an ink viscosity increase.
[0071] As the resin of the resin particles, acrylic resin, styrene
acrylic resin, fluorene-based resin, urethane-based resin,
polyolefin-based resin, rosin-modified resin, terpene-based resin,
polyester-based resin, polyamide-based resin, epoxy-based resin,
vinyl chloride-based resin, a vinyl chloride-vinyl acetate
copolymer, ethylene vinyl acetate-based resin, and the like are
usable, for example. The resins may be used alone or in combination
of two or more kinds thereof.
[0072] As the resin of the resin particles, among the above, at
least one kind selected from the urethane-based resin and the
acrylic resin is preferably used because the degree of freedom in
design is high, and thus desired physical properties are easily
obtained and the urethane-based resin is more preferably used from
the viewpoint of improving the rubbing fastness. The urethane-based
resin may be any one of a polyether type containing an ether bond,
a polyester type containing an ester bond, a polycarbonate type
containing a carbonate bond, and the like. The elongation at
fracture point and the 100% modulus when a urethane-based resin
having a crosslinkable group is crosslinked (crosslinked object)
can be adjusted by changing the density of the crosslinking point
and the kind of the main chain. Among the above, the urethane-based
resin having a crosslinkable group having a polycarbonate-based
skeleton or a polyether-based skeleton is more preferable in the
points that the balance between the elongation at fracture point
and the 100% modulus is good and the rubbing fastness of an image
and the texture of a printed textile are easily improved. A
polycarbonate-based urethane resin having a polycarbonate-based
skeleton is preferable because the polycarbonate-based urethane
resin tends to be able to improve the rubbing fastness. In
particular, the pigment textile printing ink jet ink composition
according to this embodiment contains the nonionic fluorine-based
surfactant, and therefore there is a tendency that the rubbing
fastness of a printed textile to be obtained is likely to be poor.
However, by the use of polycarbonate-based urethane resin particles
as the resin particles, the pigment is likely to be fixed to the
surface of a fabric and, even when the nonionic fluorine-based
surfactant is used, a printed textile excellent in color
developability and rubbing fastness is obtained.
[0073] The urethane resin is preferably the polycarbonate-based
urethane resin or the like and contains a urethane resin containing
a crosslinkable group, for example. As the crosslinkable group, an
isocyanate group and a silanol group are mentioned and one in which
an isocyanate group is chemically protected (capping or blocking)
(blocked isocyanate group) is preferably used. The blocked
isocyanate group is deprotected by being heated to be activated to
form a bond (for example, urethane bond, urea bond, allophanate
bond, and the like).
[0074] It is preferable that the urethane-based resin having a
crosslinkable group preferably has three or more crosslinkable
groups in one molecule. In such a case, a crosslinking structure is
formed by the reaction of the crosslinkable groups. In this
specification, the urethane-based resin refers to resins containing
a urethane bond, a urea bond, an allophanate bond, and the like
formed by the reaction of the isocyanate group with the other
reactive groups (for example, a hydroxyl group, an amino group, a
urethane bond group, a carboxyl group, and the like). Therefore, a
urea resin is included in the urethane-based resin in this
specification, for example. The urethane-based resin is preferably
a compound having a urethane bond obtained by the reaction of a
compound having an isocyanate group and a compound having a
hydroxyl group.
[0075] The blocked isocyanate (chemically protected isocyanate)
contains a latent isocyanate group obtained by blocking the
isocyanate group by a blocking agent and can be obtained by
reacting a polyisocyanate compound with a blocking agent, for
example.
[0076] Examples of the polyisocyanate compound include
polyisocyanate monomers, polyisocyanate derivatives, and the like,
for example. Examples of the polyisocyanate monomers include
polyisocyanates, such as aromatic polyisocyanate, araliphatic
polyisocyanate, aliphatic polyisocyanate, and alicyclic
polyisocyanate, and the like, for example. The polyisocyanate
monomers can be used alone or in combination of two or more kinds
thereof.
[0077] Examples of the polyisocyanate derivatives include polymers
of the polyisocyanate monomers mentioned above (for example, dimer,
trimer (for example, an isocyanurate modified substance and an
iminooxadiazine dione modified substance), pentamer, heptamer, and
the like), and allophanate modified substances (for example,
allophanate modified substances and the like generated by the
reaction of the polyisocyanate monomers mentioned above with low
molecular weight polyols described later), polyol modified
substances (for example, polyol modified substances (alcohol
adduct) and the like generated by the reaction of polyisocyanate
monomers with low molecular weight polyols described later), biuret
modified substances (for example, biuret modified substances and
the like generated by the reaction of the polyisocyanate monomers
mentioned above with water or amines), urea modified substances
(for example, urea modified substances and the like generated by
the reaction of the polyisocyanate monomers mentioned above with
diamines), oxadiazine trione modified substances (for example,
oxadiazine trione and the like generated by the reaction of the
polyisocyanate monomers mentioned above and carbon dioxides),
carbodiimide modified substances (carbodiimide modified substances
and the like generated by a decarboxylation condensation reaction
of the polyisocyanate monomers mentioned above), uretdione modified
substances, uretonimine modified substances, and the like, for
example.
[0078] When two or more kinds of the polyisocyanate compounds are
used in combination, two or more kinds of polyisocyanate compounds
may be simultaneously reacted or blocked isocyanates obtained
individually using the polyisocyanate compounds may be mixed in the
production of blocked isocyanate, for example.
[0079] While the blocking agent blocks the isocyanate group to
inactivate the same, the blocking agent regenerates or activates
the isocyanate group after deblocking and also has a catalytic
action of activating the isocyanate group in a state where the
isocyanate group is blocked or deblocked.
[0080] Examples of the blocking agent include imidazole-based
compounds, imidazoline-based compounds, pyrimidine-based compounds,
guanidine-based compounds, alcohol-based compounds, phenol-based
compounds, active methylene-based compounds, amine-based compounds,
imine-based compounds, oxime-based compounds, carbamic acid-based
compounds, urea-based compounds, acid amide-based (lactam-based)
compounds, acid imide-based compounds, triazole-based compounds,
pyrazole-based compounds, mercaptan-based compounds, bisulfites,
and the like.
[0081] Examples of the imidazole-based compounds, for example,
imidazole (Dissociation temperature of 100.degree. C.),
benzimidazole (Dissociation temperature of 120.degree. C.),
2-methylimidazole (Dissociation temperature of 70.degree. C.),
4-methylimidazole (Dissociation temperature of 100.degree. C.),
2-ethylimidazole (Dissociation temperature of 70.degree. C.),
2-isopropylimidazole, 2,4-dimethylimidazole,
2-ethyl-4-methylimidazole, and the like.
[0082] Examples of the imidazoline-based compounds include
2-methylimidazoline (Dissociation temperature of 110.degree. C.),
2-phenylimidazoline, and the like, for example.
[0083] Examples of the pyrimidine-based compound include
2-methyl-1,4,5,6-tetrahydropyrimidine and the like, for
example.
[0084] Examples of the guanidine-based compounds include, for
example, 3,3-dialkyl guanidine, such as 3,3-dimethyl guanidine,
e.g., 1,1,3,3-tetraalkyl guanidine, such as 1,1,3,3-tetramethyl
guanidine (Dissociation temperature of 120.degree. C.),
1,5,7-triazabicyclo[4.4.0]dec-5-ene, and the like.
[0085] Examples of the alcohol-based compounds include, for
example, methanol, ethanol, 2-propanol, n-butanol, s-butanol,
2-ethylhexyl alcohol, 1- or 2-octanol, cyclohexyl alcohol, ethylene
glycol, benzyl alcohol, 2,2,2-trifluoroethanol,
2,2,2-trichloroethanol, 2-(hydroxymethyl)furan, 2-methoxyethanol,
methoxy propanol, 2-ethoxyethanol, n-propoxyethanol,
2-butoxyethanol, 2-ethoxyethoxyethanol, 2-ethoxybutoxyethanol,
butoxyethoxyethanol, 2-butoxyethylethanol, 2-butoxyethoxyethanol,
N,N-dibutyl-2-hydroxyacetamide, N-hydroxysuccinimide, N-morpholine
ethanol, 2,2-dimethyl-1,3-dioxolane-4-methanol, 3-oxazolidine
ethanol, 2-hydroxymethyl pyridine (Dissociation temperature of
140.degree. C.), furfuryl alcohol, 12-hydroxy stearic acid,
triphenyl silanol, 2-hydroxyethyl methacrylate, and the like.
[0086] Examples of the phenol-based compounds include, for example,
phenol, cresol, ethylphenol, n-propylphenol, isopropylphenol,
n-butylphenol, s-butylphenol, t-butylphenol, n-hexylphenol,
2-ethylhexylphenol, n-octylphenol, n-nonylphenol,
di-n-propylphenol, diisopropylphenol, isopropylcresol,
di-n-butylphenol, di-s-butylphenol, di-t-butylphenol,
di-n-octylphenol, di-2-ethylhexylphenol, di-n-nonylphenol,
nitrophenol, bromophenol, chlorophenol, fluorophenol,
dimethylphenol, styrenated phenol, methylsalicylate,
4-hydroxymethylbenzoate, 4-hydroxybenzylbenzoate, 2-ethylhexyl
hydroxybenzoate, 4-[(dimethylamino)methyl]phenol,
4-[(dimethylamino)methyl]nonylphenol, bis(4-hydroxyphenyl)acetate,
2-hydroxypyridine (Dissociation temperature of 80.degree. C.), 2-
or 8-hydroxyquinoline, 2-chloro-3-pyridinol, pyridine-2-thiol
(Dissociation temperature of 70.degree. C.), and the like.
[0087] Examples of the active methylene-based compounds include,
for example, Meldrum's acid, dialkyl malonates (e.g., dimethyl
malonate, diethyl malonate, di n-butyl malonate, di-t-butyl
malonate, di 2-ethylhexyl malonate, methyl n-butyl malonate, ethyl
n-butyl malonate, methyl s-butyl malonate, ethyl s-butyl malonate,
methyl t-butyl malonate, ethyl t-butyl malonate, diethyl
methylmalonate, dibenzyl malonate, diphenyl malonate, benzylmethyl
malonate, ethylphenyl malonate, t-butylphenyl malonate,
isopropylidene malonate, and the like), alkyl acetoacetates (e.g.,
methyl acetoacetate, ethyl acetoacetate, n-propyl acetoacetate,
isopropyl acetoacetate, n-butyl acetoacetate, t-butyl acetoacetate,
benzyl acetoacetate, phenyl acetoacetate, and the like),
2-acetoacetoxyethyl methacrylate, acetylacetone, ethyl
cyanoacetate, and the like.
[0088] Examples of the amine compounds include, for example,
dibutylamine, diphenylamine, aniline, N-methylaniline, carbazole,
bis(2,2,6,6-tetramethylpiperidinyl)amine, di-n-propylamine,
diisopropylamine (Dissociation temperature of 130.degree. C.),
isopropylethylamine, 2,2,4- or 2,2,5-trimethylhexamethyleneamine,
N-isopropylcyclohexylamine (Dissociation temperature of 140.degree.
C.), dicyclohexylamine (Dissociation temperature of 130.degree.
C.), bis(3,5,5-trimethylcyclohexyl) amine, piperidine,
2,6-dimethylpiperidine (Dissociation temperature of 130.degree.
C.), t-butylmethylamine, t-butylethylamine (Dissociation
temperature 120.degree. C.), t-butylpropylamine, t-butylbutylamine,
t-butylbenzylamine (Dissociation temperature of 120.degree. C.),
t-butylphenylamine, 2,2,6-trimethylpiperidine,
2,2,6,6-tetramethylpiperidine (Dissociation temperature of
80.degree. C.), (dimethylamino)-2,2,6,6-tetramethylpiperidine,
2,2,6,6-tetramethyl-4-piperidine, 6-methyl-2-piperidine,
6-aminocaproic acid, and the like.
[0089] Examples of the imine compounds include, for example,
ethyleneimine, polyethyleneimine, 1,4,5,6-tetrahydropyrimidine,
guanidine, and the like.
[0090] Examples of the oxime compounds include, for example,
formaldoxime, acetaldoxime, acetoxime, methylethylketoxime
(Dissociation temperature of 130.degree. C.), cyclohexanoneoxime,
diacetyl monoxime, benzophenone oxime,
2,2,6,6-tetramethylcyclohexanoneoxime, diisopropylketoneoxime,
methyl t-butylketoneoxime, diisobutylketoneoxime,
methylisobutylketoneoxime, methylisopropylketoneoxime, methyl
2,4-dimethylpentylketoneoxime, methyl 3-ethylheptylketoneoxime,
methylisoamylketoneoxime, n-amylketoneoxime, 2,2,4,4-tetramethyl-1,
3-cyclobutanedionemonooxime, 4,4'-dimethoxybenzophenoneoxime,
2-heptanoneoxime, and the like.
[0091] Examples of the carbamic acid compounds include, for
example, phenyl N-phenyl carbamate and the like.
[0092] Examples of the urea compounds include, for example, urea,
thiourea, ethylene urea, and the like.
[0093] Examples of the acid amide-based (lactam-based) compounds
include, acetanilide, N-methyl acetamide, acetamide,
.epsilon.-caprolactam, .delta.-valerolactam, .gamma.-butyrolactam,
pyrrolidone, 2,5-piperazine dione, laurolactam, and the like, for
example.
[0094] Examples of the acid imide compounds include succinimide,
maleinimide, phthalimide, and the like, for example.
[0095] Examples of the triazole compounds include 1,2,4-triazole,
benzotriazole, and the like, for example.
[0096] Examples of the pyrazole compounds include pyrazole,
3,5-dimethylpyrazole (Dissociation temperature of 120.degree. C.),
3,5-diisopropylpyrazole, 3,5-diphenylpyrazole,
3,5-di-t-butylpyrazole, 3-methylpyrazole,
4-benzyl-3,5-dimethylpyrazole, 4-nitro-3,5-dimethylpyrazole,
4-bromo-3,5-dimethylpyrazole, 3-methyl-5-phenylpyrazole, and the
like, for example.
[0097] Examples of the mercaptan compounds include butylmercaptan,
dodecylmercaptan, hexylmercaptan, and the like, for example.
[0098] Examples of the bisulfates include sodium bisulfate and the
like, for example.
[0099] Examples of the blocking agent also include, for example,
other blocking agents, such as benzoxazolone, isatoic acid
anhydride, and tetrabutylphosphonium acetate, without being limited
to the above-described examples.
[0100] For some of the compounds illustrated above, the
dissociation temperature is also indicated as the temperature for
regenerating the isocyanate group.
[0101] Such blocking agents can be used alone or in combination of
two or more kinds thereof. The dissociation temperature of the
blocking agent can be selected as appropriate. The dissociation
temperature is 60.degree. C. or more and 230.degree. C. or less,
preferably 80.degree. C. or more and 200.degree. C. or less, more
preferably 100.degree. C. or more and 180.degree. C. or less, and
still more preferably 110.degree. C. or more and 160.degree. C. or
less, for example. Within such a temperature range, the pot life of
the pigment textile printing ink jet ink composition can be
sufficiently lengthened and the temperature in a heating process
can be prevented from being excessively high.
[0102] The main chain of the urethane-based resin having a
crosslinkable group may be any one of a polyether type containing
an ether bond, a polyester type containing an ester bond, and a
polycarbonate type containing a carbonate bond. The elongation at
fracture point and the 100% modulus when the urethane-based resin
having a crosslinkable group is crosslinked (crosslinked object)
can be adjusted by changing the density of the crosslinking point
and the kind of such a main chain. Among the above, a
urethane-based resin having a crosslinkable group having a
polycarbonate-based skeleton or a polyether-based skeleton is more
preferable in the points that the balance between the elongation at
fracture point and the 100% modulus is good and the rubbing
fastness of an image and the texture of a printed textile are
easily improved. The polycarbonate-based urethane resin having a
polycarbonate-based skeleton is preferable because the
polycarbonate-based urethane resin tends to be able to improve the
rubbing fastness. In particular, the pigment textile printing ink
jet ink composition to be used in this embodiment contains the
nonionic fluorine-based surfactant, and therefore there is a
tendency that the rubbing fastness of a printed textile to be
obtained is likely to be poor. However, by the use of
polycarbonate-based urethane resin particles as the resin
particles, the pigment is likely to be fixed to the surface of a
fabric and, even when the nonionic fluorine-based surfactant is
used, a printed textile excellent in color developability and
rubbing fastness is obtained.
[0103] The urethane-based resin having a crosslinkable group has an
elongation at fracture point after crosslinked (crosslinked object)
of 150% or more, preferably 170% or more, more preferably 200% or
more, and still more preferably 300% or more. By selecting the
density of the crosslinking point and the kind of the main chain so
as to have such an elongation at fracture point, the texture of a
printed textile can be improved.
[0104] Herein, as the elongation at fracture point, a value
obtained by curing a urethane-based resin emulsion having a
crosslinkable group to create a film having a thickness of about 60
.mu.m, and then performing the measurement under the conditions of
the tensile test gauge length of 20 mm and the tensile speed of 100
mm/min can be adopted, for example. For the 100% modulus, a value
obtained by measuring the tensile stress when the film is 100%
elongated based on the original length in the tensile test can be
adopted. The film to be measured may be formed using the
urethane-based resin emulsion having a crosslinkable group or may
be formed by molding using the same kind of resin, and the
formation using an emulsion resin is preferable.
[0105] The urethane-based resin having a crosslinkable group may be
compounded in the form of an emulsion. Such a resin emulsion is a
so-called self-reaction type urethane-based resin emulsion and
those commercially available as a urethane-based resin emulsion
having an isocyanate group blocked by a blocking agent having a
hydrophilic group are usable.
[0106] As the commercially-available items of the urethane-based
resin having a crosslinkable group include TAKELAC WS-6021 (Trade
Name, manufactured by Mitsui Chemicals Polyurethanes Inc.,
urethane-based resin emulsion, polyether-based polyurethane having
a polyether-derived skeleton), WS-5100 (Trade Name, manufactured by
Mitsui Chemicals Polyurethanes Inc., urethane-based resin emulsion,
polycarbonate-based polyurethane having a polycarbonate-derived
skeleton), Elastron E-37 and H-3 (polyester-based polyurethane, the
main chain of which has a polyester-derived skeleton), Elastron
H-38, BAP, C-52, F-29, and W-11P (polyether-based polyurethane, the
main chain of which has a polyether-derived skeleton) (Trade Names,
manufactured by Daiichi Kogyo Seiyaku Co., Ltd. urethane-based
resin emulsion), SUPERFLEX 870, 800, 150, 420, 460, 470, 610, and
700 (Trade Names, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.,
urethane-based resin emulsion), PARMARIN UA-150 (Trade Name,
manufactured by Sanyo Chemical Industries, Ltd., urethane-based
resin emulsion), Sancure 2710 (Trade Name, manufactured by Japan
Lubrizol Corporation, urethane-based resin emulsion), NeoRez
R-9660, R-9637, and R-940 (Trade Names, manufactured by Kusumoto
Chemicals, Ltd., urethane-based resin emulsion), ADEKABON TITER
HUX-380 and 290K (Trade Names, manufactured by ADEKA, Inc.,
urethane-based resin emulsion) and the like can be illustrated.
[0107] In this embodiment, the content of the resin particles is
preferably 1% by mass or more and 20% by mass or less in terms of
solid content based on the total mass (100% by mass) of the ink and
the lower limit is more preferably 2.5% by mass or more and still
more preferably 3% by mass or more. The upper limit of the content
of the resin particles is more preferably 15% by mass or less and
still more preferably 12% by mass or less. By setting the content
of the resin particles within the range mentioned above, both the
discharge stability and the rubbing fastness of a recorded matter
to be obtained can be achieved.
[0108] When a treatment liquid is used in the ink jet pigment
textile printing method according to this embodiment described
later, the urethane-based resin may be contained in the treatment
liquid. In that case, the urethane-based resin contained in the
treatment liquid may be the same as or different from the
urethane-based resin contained in the pigment textile printing ink
jet ink composition.
[0109] The temperature in a heating process in the ink jet pigment
textile printing method according to this embodiment described
later is set considering the deprotection temperature (dissociation
temperature) of the isocyanate group of the urethane-based resins
having a crosslinkable groups so that at least some of the
crosslinkable groups are activated.
2.3. Surfactant
[0110] The pigment textile printing ink jet ink composition to be
used in this embodiment may contain surfactants. The surfactants
have functions of reducing the surface tension of an ink
composition, increasing the wettability with a fabric, and the
like, and thus facilitates the achievement of a desired viscosity
and surface tension of an ink required in the ink jet pigment
textile printing method according to this embodiment.
[0111] Among the surfactants, acetylene glycol-based surfactants,
acetylene alcohol-based surfactants, silicone-based surfactants,
and fluorine-based surfactants can be preferably used, for example.
In particular, it is preferable to use silicone-based surfactants
and fluorine-based surfactants in the point that the surface
tension of an ink composition is easily adjusted to a desired
property.
[0112] Examples of the acetylene glycol-based surfactants include,
but are not particularly limited to, Surfynol 104, 104E, 104H,
104A, 104BC, 104DPM, 104PA, 104PG-50, 104S, 420, 440, 465, 485, SE,
SE-F, 504, 61, DF37, CT111, CT121, CT131, CT136, TG, GA, and DF110D
(all Trade Names, manufactured by Air Products and Chemicals.
Inc.), Olefin B, Y, P, A, STG, SPC, E1004, E1010, PD-001, PD-002W,
PD-003, PD-004, EXP.4001, EXP.4036, EXP.4051, AF-103, AF-104,
AK-02, SK-14, and AE-3 (all Trade Names, manufactured by Nisshin
Chemical Co., Ltd.), and Acetylenol E00, E00P, E40, and E100 (all
Trade Names, manufactured by Kawaken Fine Chemicals Co., Ltd.
make), for example.
[0113] The silicone-based surfactants are not particularly limited
and polysiloxane-based compounds are preferably mentioned. The
polysiloxane-based compounds are not particularly limited and
polyether-modified organosiloxanes are mentioned, for example.
Examples of commercially-available items of the polyether-modified
organosiloxanes include, for example, BYK-306, BYK-307, BYK-333,
BYK-341, BYK-345, BYK-346, and BYK-348 (all Trade Names,
manufactured by BYK Chemie Japan, Inc.), KF-351A, KF-352A, KF-353,
KF-354L, KF-355A, KF-615A, KF-945, KF-640, KF-642, KF-643, KF-6020,
X-22-4515, KF-6011, KF-6012, KF-6015, and KF-6017 (all Trade Names,
manufactured by Shin-Etsu Chemical Co., Ltd.).
[0114] As the fluorine-based surfactants, fluorine-modified
polymers are preferably used and BYK-340 (BYK Chemie Japan, Inc.)
is mentioned as a specific example.
[0115] The lower limit of the content of the surfactant is
preferably 0.1% by mass or more, more preferably 0.3% by mass more,
and still more preferably 0.5% by mass or more based on the total
mass (100% by mass) of the ink. The upper limit of the content of
the surfactant is preferably 10% by mass or less, more preferably
7% by mass or less, still more preferably 5% by mass or less,
particularly preferably 2% by mass or less, and yet still more
preferably 1% by mass or less based on the total mass (100% by
mass) of the ink.
[0116] In this embodiment, the fluorine-based surfactants are
preferably nonionic fluorine-based surfactants. When the nonionic
fluorine-based surfactant is used, the permeation of the ink into
the fabric is suppressed, and thus the sinking of the pigment into
the fabric is suppressed by an operation of holding the ink on the
surface of the fabric. Due to the fact that the surfactant is
nonionic, unevenness is hard to occur in color development.
Therefore, due to the fact that the pigment textile printing ink
jet ink composition to be used in this embodiment contains the
nonionic fluorine-based surfactant, a printed textile excellent in
color developability can be obtained.
[0117] When the pigment textile printing ink jet ink composition to
be used in this embodiment is used for the two-layer printing,
blurring of a color boundary with a chromatic color ink
(hereinafter also referred to as "color ink") to be printed later
decreases by reducing the wettability of the surface of a white
base formed of a white ink containing a white pigment as the
pigment of the pigment textile printing ink jet ink composition,
and therefore the color developability of the chromatic color ink
is improved.
[0118] When selecting the nonionic fluorine-based surfactant, it is
preferable to take the HLB value into consideration. More
specifically, the lower limit of the HLB value of the nonionic
fluorine-based surfactant compounded in the pigment textile
printing ink jet ink composition is 6 or more, preferably 8 or
more, and more preferably 10 or more. The upper limit of the HLB
value of the nonionic fluorine-based surfactant is 15 or less,
preferably 13 or less, and more preferably 12 or less. The nonionic
fluorine-based surfactant having an HLB value within the range
mentioned above has higher hydrophilicity and more easily
suppresses the permeability into a fabric of the pigment textile
printing ink jet ink composition. Therefore, the color
developability can be further improved.
[0119] The HLB value in this specification is a value calculated by
the following expression (1) from the ratio of a nonpolar value (I)
and a polar value (O) in an organic conceptual diagram (hereinafter
also simply referred to as "I/O value").
HLB value=(Nonpolar value (I)/Polar value (O)).times.10 (1)
[0120] Specifically, the I/O value can be calculated based on each
of the literatures of "Keitoteki Yuki Teisei Bunseki Kongobutsu
Hen" (Systematic Organic Qualitative Analysis (Mixtures)), edited
by Atsushi FUJITA, Kazama shobo, 1974; "Senshoku Riron Kagaku"
(Dyeing Theory Science), edited by Nobuhiko KUROKI, Maki Shoten,
1966; and "Yuki Kagobutshu Bunriho" (Organic compound Separation
Method), edited by Hiroo INOUE, Shokabo, 1990.
[0121] The nonionic fluorine-based surfactant preferably has a
polyoxyethylene group and an alkyl fluoride group, and a
polyfluoroalkylamine oxide or a polyfluoroalkyl-alkylene oxide
adduct is preferable.
[0122] As the nonionic fluorine-based surfactant to be used in this
embodiment, commercially available substances are usable and
Surflon S-145, Surflon S-241, Surflon S-242, Surflon S-243, Surflon
S-386, Surflon S-393, Surflon S-420, Surflon S-611, Surflon S-650,
Surflon S-651, Surflon KH-20, and Surflon KH-40 (all Trade Names,
manufactured by AGC SEIMI CHEMICAL CO., LTD.), Fluorad FC-170C,
Fluorad FC-430, and Fluorad FC4430 (all Trade Names, manufactured
by Sumitomo 3M Japan, Inc.), FSO, FSO-100, FSN, FSN-100, and FS-300
(all Trade Names, manufactured by DuPont), Ftergent FT-250 and 251
(all Trade Names, manufactured by Neos Co., Ltd.), Megafac F-554
and Megafac F-556 (all Trade Names, manufactured by DIC, Inc.), and
the like are mentioned. Among the above, FSO, FSO-100, FSN,
FSN-100, and FS-300 of DuPont are preferably used. By the use of
the nonionic fluorine-based surfactants, the permeability into a
fabric of the pigment textile printing ink jet ink composition can
be controlled, so that the color developability of a printed
textile can be further improved. When the pigment textile printing
ink jet ink composition to be used in this embodiment is used for
the two-layer printing, the blurring of a color boundary with a
chromatic color ink printed later decreases by reducing the
wettability of the surface of a white base formed of a white ink,
so that the color developability of the chromatic color ink is
improved.
[0123] The lower limit of the content of the nonionic
fluorine-based surfactant of the pigment textile printing ink jet
ink composition to be used in this embodiment is preferably 0.1% by
mass or more, more preferably 0.2% by mass or more, and still more
preferably 0.3% by mass or more based on the total mass (100% by
mass) of the pigment textile printing ink jet ink composition. The
upper limit of the content of the nonionic fluorine-based
surfactant is preferably 0.8% by mass or less, more preferably 0.6%
by mass or less, and still more preferably 0.5% by mass or less
based on the total mass (100% by mass) of the pigment textile
printing ink jet ink composition. Due to the fact that the content
of the nonionic fluorine-based surfactant is within the range
mentioned above, the permeability into the fabric of the pigment
textile printing ink jet ink composition can be controlled, so that
the color developability of a printed textile can be further
improved. When the pigment textile printing ink jet ink composition
to be used in this embodiment is used for the two-layer printing,
the blurring of a color boundary with a chromatic color ink printed
later decreases by reducing the wettability of the surface of a
white base formed of a white ink, so that the color developability
of the chromatic color ink is improved.
[0124] When the pigment textile printing ink jet ink composition to
be used in this embodiment is used for the two-layer printing, the
content of the nonionic fluorine-based surfactant in the chromatic
color pigment textile printing ink jet ink composition is
preferably 0.5% by mass or less, more preferably 0.3% by mass or
less, and still more preferably 0.1% by mass or less based on the
total mass (100% by mass) of the chromatic color pigment textile
printing ink jet ink composition. Due to the fact that the content
of the nonionic fluorine-based surfactant in the chromatic color
pigment textile printing ink jet ink composition is low, a
reduction in rubbing fastness of a printed textile to be obtained
is suppressed in the two-layer printing, so that an image with good
abrasion resistance is obtained.
2.4. Water
[0125] The pigment textile printing ink jet ink composition to be
used in this embodiment contains water as a solvent. The water is a
medium serving as the main component of the ink and is a component
evaporating and scattering by drying. As the water, those from
which ionic impurities are removed as much as possible, such as
pure water and ultrapure water, e.g., ion exchanged water,
ultrafiltration water, reverse osmosis water, and distilled water,
are mentioned, for example. When water sterilized by irradiation
with ultraviolet rays or the addition of hydrogen peroxide, for
example, is used, the generation of molds or bacteria can be
prevented when the ink is stored over a long period of time.
[0126] The content of the water contained in the pigment textile
printing ink jet ink composition to be used in this embodiment is
not particularly limited and can be 50% by mass or more, can be 60%
by mass or more, or can be 70% by mass or more based on the total
mass (100% by mass) of the ink. The upper limit of the content of
the water contained in the ink can be 95% by mass or less, can be
90% by mass or less, and can be 80% by mass or less.
2.5. Water-Soluble Organic Solvent
[0127] The pigment textile printing ink jet ink composition to be
used in this embodiment may also contain a water-soluble organic
solvent. Due to the fact that the water-soluble organic solvent is
contained, the discharge stability by an ink jet method of the ink
composition is improved and the moisture evaporation from an ink
jet head when allowed to stand over a long period of time can be
effectively suppressed.
[0128] Examples of the water-soluble organic solvent include polyol
compounds, glycol ethers, betaine compounds, and the like, for
example.
[0129] As the polyol compounds, polyol compounds (preferably diol
compounds) in which the number of carbon atoms in the molecules is
2 or more and 6 or less and which may have one ether bond in the
molecules are mentioned, for example. Specific examples of the
polyol compounds include glycols, such as 1,2-pentanediol, methyl
triglycol (triethylene glycol monomethyl ether), butyl triglycol
(triethylene glycol monobutyl ether), butyl diglycol (diethylene
glycol monobutyl ether), dipropylene glycol monopropyl ether,
glycerol, 1,2-hexanediol, 1,2-heptanediol, 1,3-propanediol,
1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol,
2-methyl-3-phenoxy-1,2-propanediol,
3-(3-methylphenoxy)-1,2-propanediol, 3-hexyloxy-1,2-propanediol,
2-hydroxymethyl-2-phenoxy methyl-1,3-propanediol,
3-methyl-1,3-butanediol, 1,3-propanediol, 1,2-butanediol,
1,2-pentanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol,
2-methyl-2,4-pentanediol, and 3-methyl-1,5-pentanediol.
[0130] As the glycol ethers, monoalkyl ethers of glycols selected
from ethylene glycol, diethylene glycol, triethylene glycol,
polyethylene glycols, propylene glycol, dipropylene glycol,
tripropylene glycol, polypropylene glycol, and polyoxyethylene
polyoxy propylene glycol are preferable, for example. More
preferably, triethylene glycol monomethyl ether, triethylene glycol
monobutyl ether, dipropylene glycol monopropyl ether, and the like
are mentioned.
[0131] The betaine compounds are compounds (intramolecular salts)
which have positive charges and negative charges at positions which
are not adjacent to each other in the same molecule, in which a
hydrogen atom which can be dissociated is not bonded to an atom
having a positive charge, and which have no charges as whole
molecules. The betaine compounds are preferably N-alkyl
substitution products of amino acids and more preferably N-trialkyl
substitution products of amino acids. As the betaine compounds,
trimethyl glycine (also referred to as "glycine betaine"),
.gamma.-butyro betaine, homarine, trigonelline, carnitine,
homoserine betaine, valine betaine, lysine betaine, ornithine
betaine, alanine betaine, stachydrine, glutamic acid betaine, and
the like are mentioned, and trimethyl glycine and the like can be
preferably illustrated, for example.
[0132] As the water-soluble organic solvent, pyrrolidone
derivatives may be used. Examples of the pyrrolidone derivatives
include N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone,
N-vinyl-2-pyrrolidone, 2-pyrrolidone, N-butyl-2-pyrrolidone,
5-methyl-2-pyrrolidone, and the like, for example.
[0133] For the water-soluble organic solvent, two or more kinds may
be mixed to be used. The water-soluble organic solvent is
preferably added so as to achieve desired ink viscosity and surface
tension described later. The content of the water-soluble organic
solvent is 0.2% by mass or more and 30% by mass or less, preferably
0.4% by mass or more and 20% by mass or less, more preferably 0.5%
by mass or more and 15% by mass or less, and still more preferably
0.7% by mass or more and 10% by mass or less based on the total
mass (100% by mass) of the ink.
2.6. Inorganic Alkali Compound
[0134] The pigment textile printing ink jet ink composition to be
used in this embodiment preferably contains an inorganic alkali
compound (inorganic base compound). The inorganic alkali compound
has a property of increasing the pH of the pigment textile printing
ink jet ink composition. The inorganic alkali compound has at least
a function of increasing the dispersion stability of resin
particles and/or a function of improving the redispersibility of
resin particles.
[0135] Examples of the inorganic alkali compound include hydroxides
of alkali metals or hydroxides of alkaline earth metals, carbonates
of alkali metals or carbonates of alkaline earth metals, phosphates
of alkali metals or phosphates of alkaline earth metals, and the
like.
[0136] Examples of the hydroxides of alkali metals include lithium
hydroxide, sodium hydroxide, potassium hydroxide, and the like.
Examples of the hydroxide of alkaline earth metals include calcium
hydroxide, magnesium hydroxide, and the like.
[0137] Examples of the carbonates of alkali metals include lithium
carbonate, lithium hydrogencarbonate, potassium carbonate,
potassium hydrogencarbonate, sodium carbonate, sodium
hydrogencarbonate, and the like. Examples of the carbonates of
alkaline earth metals include calcium carbonate and the like.
[0138] Examples of the phosphates of alkali metals include lithium
phosphate, potassium phosphate, potassium dihydrogen phosphate,
trisodium phosphate, disodium hydrogen phosphate, and the like.
Examples of the phosphates of alkaline earth metals include calcium
phosphate, calcium hydrogen phosphate, and the like.
[0139] For the pigment textile printing ink jet ink composition to
be used in this embodiment, two or more kinds of the inorganic
alkali compounds mentioned above may be used. The total content of
the inorganic alkali compound is 0.01% by mass or more and 0.8% by
mass or less, preferably 0.02% by mass or more and 0.6% by mass or
less, more preferably 0.03% by mass or more and 0.4% by mass or
less, still more preferably 0.04% by mass or more and 0.3% by mass
or less, particularly preferably 0.05% by mass or more and 0.2% by
mass or less, and more particularly preferably 0.05% by mass or
more and 0.1% by mass or less based on the total mass (100% by
mass) of the pigment textile printing ink jet ink composition.
[0140] When the compounding amount of the inorganic alkali compound
is within the range mentioned above, the pH of the pigment textile
printing ink jet ink composition can be sufficiently increased and
the function of increasing the dispersion stability of resin
particles and/or the function of improving the redispersibility of
resin particles can be demonstrated.
2.7. Other Components
[0141] The pigment textile printing ink jet ink composition to be
used in this embodiment may contain pH adjusters, antiseptic
agents, antifungal agents, antirusts, chelating agents, viscosity
modifiers, dissolution assistants, antioxidants, and the like as
necessary.
wpH adjuster
[0142] Examples of the pH adjusters include morpholines,
piperazines, amines having a normal boiling point at 25.degree. C.
of 200.degree. C. or more, such as diethanolamine, triethanolamine,
and triisopropanolamine, ammonia, and the like besides the
inorganic alkali compounds described above, for example. Among the
above, the amines having a normal boiling point at 25.degree. C. of
200.degree. C. or more are preferably contained. Due to the fact
that such high boiling point amines are contained, clogging of a
head can be suppressed at a temperature in a heating process in the
ink jet pigment textile printing method according to this
embodiment described later.
Antiseptic Agent and Antifungal Agent
[0143] Examples of the antiseptic agents and the antifungal agents
include sodium benzoate, sodium pentachlorophenol, sodium
2-pyridinethiol-1-oxide, sodium sorbate, sodium dehydroacetate,
1,2-dibenzine thiazoline-3-one (Proxel CRL, Proxel BND, Proxel GXL,
Proxel XL-2, and Proxel TN of ICI), and the like.
Chelating Agent
[0144] The chelating agent has a property of capturing ions.
Examples of such a chelating agent include
ethylenediaminetetraacetate (EDTA), nitrilotriacetate,
hexametaphosphate, pyrophosphate, or metaphosphate of ethylene
diamine, and the like, for example.
2.8. Method for Preparing Pigment Textile Printing Ink Jet Ink
Composition
[0145] The pigment textile printing ink jet ink composition to be
used in this embodiment is obtained by mixing the components
mentioned above in an arbitrary order, and then performing
filtration or the like as necessary to remove impurities. As a
method for mixing the components, a method including successively
adding materials into a container provided with a stirring device,
such as a mechanical stirrer or a magnetic stirrer, and then
stirring and mixing the components is preferably used. As a
filtration method, centrifugal filtration, filter filtration, and
the like can be performed as necessary.
2.9. Physical Properties of Pigment Textile Printing Ink Jet Ink
Composition
[0146] The pigment textile printing ink jet ink composition to be
used in this embodiment is applied to a fabric by an ink jet
method. Therefore, in the pigment textile printing ink jet ink
composition, the surface tension at 25.degree. C. is preferably 10
mN/m or more and 40 mN/m or less and more preferably 25 mN/m or
more and 40 mN/m or less from the viewpoint of the balance between
the recording quality and the reliability as an ink for ink jet
recording. For the measurement of the surface tension, the
measurement can be performed by confirming the surface tension when
a platinum plate is wetted with an ink in a 25.degree. C.
environment using an automatic surface tensiometer CBVP-Z (Trade
Name, manufactured by Kyowa Interface Science Co., LTD.), for
example.
[0147] From the same viewpoint, the viscosity at 20.degree. C. of
the pigment textile printing ink jet ink composition is preferably
2 mPas or more and 15 mPas or less, more preferably 2 mPas or more
and 5 mPas or less, and more preferably 2 mPas or more and 3.6 mPas
or less. For the measurement of the viscosity, the viscosity in a
40.degree. C. or 20.degree. C. environment can be measured using a
viscoelasticity testing machine MCR-300 (Trade Name, manufactured
by Pysica), for example.
3. Treatment Liquid Composition for Ink Jet Pigment Textile
Printing
[0148] Next, the treatment liquid composition for ink jet pigment
textile printing according to this embodiment is described. The
treatment liquid composition for ink jet pigment textile printing
according to this embodiment is a treatment liquid composition
which coagulates the components of the ink composition described
above in ink jet pigment textile printing, which is used by being
attached to a fabric, and which contains a cationic compound, a
nonionic fluorine-based surfactant, resin particles, and water.
[0149] The treatment liquid composition for ink jet pigment textile
printing according to this embodiment configures the treatment
liquid composition set for ink jet pigment textile printing
according to this embodiment. The treatment liquid composition set
for ink jet pigment textile printing according to this embodiment
contains the treatment liquid composition for ink jet pigment
textile printing according to this embodiment and the pigment
textile printing ink jet ink composition described above.
3.1. Cationic Compound
[0150] The treatment liquid composition for ink jet pigment textile
printing according to this embodiment contains a cationic compound.
The cationic compound acts as a coagulant coagulating the
components of the ink composition described above. For example,
polyvalent metal salts, organic acids, cationic resins, cationic
surfactants, and the like. The cationic compounds may be used alone
or in combination of two or more kinds thereof. Among the cationic
compounds, polyvalent metal salts, organic acids, or cationic
resins are preferably used and the polyvalent metal salts are more
preferably used from the viewpoint of excellent reactivity with the
pigment and the resin particles contained in the ink
composition.
[0151] The polyvalent metal salts are compounds containing
polyvalent metal ions of divalent or more and anions bonded to the
polyvalent metal ions and are soluble in water. Specific examples
of the polyvalent metal ions include divalent metal ions, such as
Ca.sup.2+, Cu.sup.2+, Ni.sup.2+, Mg.sup.2+, Zn.sup.2+, and
Ba.sup.2+, and trivalent metal ions, such as Al.sup.3+, Fe.sup.3+,
and Cr.sup.3+. Examples of anions include Cl.sup.-, I.sup.-,
B.sup.-, SO.sub.4.sup.2-, ClO.sup.3-, NO.sup.3-, HCOO.sup.-,
CH.sub.3COO.sup.-, and the like. Among such polyvalent metal salts,
calcium salts and magnesium salts are preferable and either calcium
nitrate or calcium chloride is preferable from the viewpoint of the
stability of the treatment liquid and the reactivity as the
coagulant.
[0152] As the organic acids, sulfuric acid, hydrochloric acid,
nitric acid, phosphoric acid, polyacrylic acid, acetic acid,
glycolic acid, malonic acid, malic acid, maleic acid, ascorbic
acid, succinic acid, glutaric acid, fumaric acid, citric acid,
tartaric acid, lactic acid, sulfonic acid, orthophosphoric acid,
pyrrolidone carboxylic acid, pyrone carboxylic acid, pyrrole
carboxylic acid, furancarboxylic acid, pyridinecarboxylic acid,
coumaric acid, thiophene carboxylic acid, nicotinic acid, or
derivatives of these compounds or salts thereof and the like are
preferably mentioned, for example. The organic acids may be used
alone or in combination of two or more kinds thereof.
[0153] Examples of the cationic resin include cationic urethane
resin, cationic olefin resin, cationic allylamine resin, and the
like, for example.
[0154] As the cationic urethane resin, known substances can be
selected and used as appropriate. As the cationic urethane resin,
commercially-available items are usable and, for example, HYDRAN
CP-7010, CP-7020, CP-7030, CP-7040, CP-7050, CP-7060, and CP-7610
(Trade Names, manufactured by Dainippon Ink and Chemicals,
Incorporated), SUPERFLEX 600, 610, 620, 630, 640, and 650 (Trade
Names, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), urethane
emulsions WBR-2120C and WBR-2122C (Trade Names, manufactured by
TAISEI FINE CHEMICAL CO., LTD.), and the like are usable.
[0155] The cationic olefin resin has olefins, such as ethylene and
propylene, in the structure skeleton and known substances can be
selected and used as appropriate. The cationic olefin resin may be
in an emulsion state of being dispersed in a solvent containing
water, an organic solvent, and the like. As the cationic olefin
resin, commercially-available items are usable and, for example,
Arrow Base CB-1200 and CD-1200 (Trade Names, manufactured by a
UNITIKA LTD.) and the like are mentioned.
[0156] As the cationic allylamine resin, known substances can be
selected and used as appropriate and, for example, polyallylamine
hydrochloride, polyallylamine amide sulfate, an allylamine
hydrochloride-diallylamine hydrochloride copolymer, an allylamine
acetate-diallylamine acetate copolymer, an allylamine
acetate-diallylamine acetate copolymer, an allylamine
hydrochloride-dimethyl allylamine hydrochloride copolymer, an
allylamine-dimethyl allylamine copolymer, polydiallylamine
hydrochloride, polymethyl diallylamine hydrochloride, polymethyl
diallylamine amide sulfate, polymethyl diallylamine acetate,
polydiallyl dimethyl ammonium chloride, a diallylamine
acetate-sulfur dioxide copolymer, a diallyl methyl ethylammonium
ethylsulfate-sulfur dioxide copolymer, a methyl diallylamine
hydrochloride-sulfur dioxide copolymer, a diallyl dimethyl ammonium
chloride-sulfur dioxide copolymer, a diallyl dimethyl ammonium
chloride-acryl amide copolymer, and the like can be mentioned. As
such a cationic allylamine-based resin, commercially available
items are usable and, for example, PAA-HCL-01, PAA-HCL-03,
PAA-HCL-05, PAA-HCL-3L, PAA-HCL-10L, PAA-H-HCL, PAA-SA, PAA-01,
PAA-03, PAA-05, PAA-08, PAA-15, PAA-15C, PAA-25, PAA-H-10C,
PAA-Dll-HCL, PAA-D41-HCL, PAA-D19-HCL, PAS-21CL, PAS-M-1L, PAS-M-1,
PAS-22SA, PAS-M-1A, PAS-H-1L, PAS-H-5L, PAS-H-10L, PAS-92, PAS-92A,
PAS-J-81L, and PAS-J-81 (Trade Names, manufactured by NITTOBO
MEDICAL CO., LTD.), Himo Neo-600, Himoloc Q-101, Q-311, and Q-501,
Himax SC-505 and SC-505 (Trade Names, manufactured by HYMO Co.,
Ltd.), and the like are usable.
[0157] As the cationic resin, compounds obtained by polymerizing
monomers containing amine and epihalohydrin compounds are also
usable. It is considered that such compounds have actions of
increasing a buffering action and an action of coagulating pigments
when contacting an ink due to the fact that the compounds contain
hydroxyl groups, ammonium cations, and the like in the main chain
and isolate halogen anions in an aqueous solution. As examples of
the compounds obtained by polymerizing the monomers containing
amine and epihalohydrin, compounds selected from
polyamine-epihalohydrin copolymers, polyamide-epihalohydrin
copolymers or polyamide polyamine-epihalohydrin copolymers, and
amine-epihalohydrin copolymers are mentioned as suitable examples.
The compounds are obtained by known methods, such as a method for
polymerizing monomers containing amine and epihalohydrin and a
method for graft-polymerizing monomers containing epihalohydrin
with polyamide obtained by polymerizing monomers containing amine
and carboxylic acid. The mass average molecular weight varies
depending on the type of the copolymer. In the case of the
polyamine epihalohydrin copolymer, the mass average molecular
weight is preferably within the range of 500 to 100000, in the case
of the polyamide-epihalohydrin copolymer or the polyamide
polyamine-epihalohydrin copolymer, the mass average molecular
weight is preferably within the range of 10000 to 5000000, and, in
the case of the amine-epihalohydrin copolymer, the mass average
molecular weight is preferably within the range of 700 to 50000.
When the mass average molecular weight exceeds the upper limits
mentioned above, an aqueous solution is not formed in some cases.
When the lower limits are not satisfied, the pretreatment effect
decreases in some cases. Examples of commercially-available items
of such compounds include WS-4020 (manufactured SEIKO PMC
CORPORATION, polyamide-epichlorohydrin copolymer) and the like.
[0158] Examples of the cationic surfactants include primary,
secondary, and tertiary amine salt-type compounds, alkylamine
salts, dialkylamine salts, aliphatic amine salts, benzalkonium
salts, quaternary ammonium salts, quaternary alkylammonium salts,
alkyl pyridinium salts, sulfonium salts, phosphonium salts, onium
salts, imidazolinium salts, and the like. Specific examples of the
cationic surfactants include hydrochlorides, acetates, and the like
of laurylamine, palm amine, rosin amine, and the like, lauryl
trimethyl ammonium chloride, cetyl trimethyl ammonium chloride,
benzyl tributyl ammonium chloride, benzalkonium chloride, dimethyl
ethyl lauryl ammonium ethyl sulfate, dimethyl ethyl octyl ammonium
ethyl sulfate, trimethyllauryl ammonium hydrochloride, cetyl
pyridinium chloride, cetyl pyridinium bromide, dihydroxyethyl
lauryl amine, decyl dimethyl benzyl ammonium chloride, dodecyl
dimethyl benzyl ammonium chloride, tetradecyl dimethyl ammonium
chloride, hexadecyl dimethyl ammonium chloride, octadecyl dimethyl
ammonium chloride, and the like.
[0159] The content of the cationic compound may be 0.1% by mass or
more and 25% by mass or less, may be 0.2% by mass or more and 20%
by mass or less, and may be 0.3% by mass or more and 10% by mass or
less based on the total mass (100% by mass) of the treatment
liquid, for example. The concentration of the coagulant may be 0.03
mol/kg or more in 1 kg of the treatment liquid. The concentration
of the coagulant may be 0.1 mol/kg or more and 1.5 mol/kg or less
and may be 0.2 mol/kg or more and 0.9 mol/kg or less in 1 kg of the
treatment liquid.
3.2. Water
[0160] The treatment liquid composition for ink jet pigment textile
printing according to this embodiment preferably contains water as
the main solvent. The water is a component evaporating and
scattering by drying after the treatment liquid is attached to a
recording medium. As the water, the same water illustrated in the
ink described above is usable, and therefore the illustration
thereof is omitted. The content of the water contained in the
treatment liquid can be set to 50% by mass or more, preferably 60%
by mass or more, more preferably 70% by mass or more, and still
more preferably 80% by mass or more, for example, based on the
total mass (100% by mass) of the treatment liquid.
3.3. Nonionic Fluorine-Based Surfactant
[0161] The treatment liquid composition for ink jet pigment textile
printing according to this embodiment contains a nonionic
fluorine-based surfactant. In a pigment textile printing method
using the treatment liquid composition for ink jet pigment textile
printing according to this embodiment, the permeation of the ink
into the fabric is suppressed, and thus the sinking of the pigment
into the fabric is suppressed by an operation of holding the ink on
the surface of the fabric by the nonionic fluorine-based
surfactant. Due to the fact that the surfactant is nonionic,
unevenness is hard to occur in color development. Therefore, due to
the fact that the treatment liquid composition for ink jet pigment
textile printing according to this embodiment contains the nonionic
fluorine-based surfactant, a printed textile excellent in color
developability can be obtained.
[0162] When the treatment liquid composition for ink jet pigment
textile printing according to this embodiment is used for the
two-layer printing, blurring of a color boundary with a chromatic
color ink (hereinafter also referred to as "color ink") to be
printed later decreases by reducing the wettability of the surface
of a white base formed of a white ink containing a white pigment as
the pigment of the pigment textile printing ink jet ink
composition, and therefore the color developability of the
chromatic color ink is improved.
[0163] When selecting the nonionic fluorine-based surfactant, it is
preferable to take the HLB value into consideration. More
specifically, the lower limit of the HLB value of the nonionic
fluorine-based surfactant compounded in the treatment liquid
composition for ink jet pigment textile printing is 6 or more,
preferably 8 or more, and more preferably 10 or more. The upper
limit of the HLB value of the nonionic fluorine-based surfactant is
15 or less, preferably 13 or less, and more preferably 12 or less.
The nonionic fluorine-based surfactant having an HLB value within
the range mentioned above has a higher hydrophilicity and more
easily suppresses the permeability into a fabric of the pigment
textile printing ink jet ink composition. Therefore, the color
developability can be further improved.
[0164] The nonionic fluorine-based surfactant preferably has a
polyoxyethylene group and an alkyl fluoride group, and a
polyfluoroalkylamine oxide or a polyfluoroalkyl-alkylene oxide
adduct is preferable.
[0165] As the nonionic fluorine-based surfactant to be used in this
embodiment, the same substances as those of the pigment textile
printing ink jet ink composition described above are usable.
[0166] The lower limit of the content of the nonionic
fluorine-based surfactant of the treatment liquid composition for
ink jet pigment textile printing according to this embodiment is
preferably 0.1% by mass or more, more preferably 0.2% by mass or
more, and still more preferably 0.3% by mass or more based on the
total mass (100% by mass) of the treatment liquid composition for
ink jet pigment textile printing. The upper limit of the content of
the nonionic fluorine-based surfactant is preferably 0.8% by mass
or less, more preferably 0.6% by mass or less, and still more
preferably 0.5% by mass or less based on the total mass (100% by
mass) of the treatment liquid composition for ink jet pigment
textile printing.
3.4. Water-Soluble Organic Solvent
[0167] To the treatment liquid composition for ink jet pigment
textile printing according to this embodiment, a water-soluble
organic solvent may be added. By adding the water-soluble organic
solvent, the wettability of the treatment liquid to a recording
medium can be improved. As the water-soluble organic solvent, the
same organic solvents illustrated in the ink composition are
usable. The content of the water-soluble organic solvent is not
particularly limited and can be set to 1% by mass or more and 40%
by mass or less, for example, based on the total mass (100% by
mass) of the treatment liquid.
3.5. Resin Particles
[0168] To the treatment liquid composition for ink jet pigment
textile printing according to this embodiment, resin particles
(resin emulsion) are compounded for the purpose of improving the
rubbing fastness and suppressing fluffing of a fabric. Moreover,
the color developability is also improved by containing the resin
particles. As such resin particles, commercially-available items
are usable. For example, in the case of a urethane resin, SUPERFLEX
500, 6E-2000, E-2500, E-4000, and R-5000 (Trade Names, manufactured
by Daiichi Kogyo Seiyaku Co., Ltd.) and ADEKABON TITER HUX-822 and
830 (Trade Names, manufactured by ADEKA, Inc.) are mentioned.
Examples of the vinyl acetate resin include Vinyblan 1245L, 2680,
2682, and 2684 (Trade Names, manufactured by Nisshin Chemical Co.,
Ltd.), for example. Examples of the acrylic resin include, for
example, VONCOAT AN-402, R-3310, and R-3360 (Trade Names,
manufactured by Dainippon Ink, Inc.).
[0169] The lower limit of the content of the resin particles in the
treatment liquid is preferably 1% by mass or more, more preferably
3% by mass or more, and still more preferably 5% by mass or more
based on the total mass (100% by mass) of the treatment liquid
composition for the ink jet pigment textile printing. The upper
limit of the content of the resin particles is preferably 12% by
mass or less, more preferably 10% by mass or less, and still more
preferably 8% by mass or less based on the total mass (100% by
mass) of the treatment liquid composition for the ink jet pigment
textile printing. Due to the fact that the content of the resin
particles in the treatment liquid is within the range mentioned
above, the rubbing fastness can be further improved and the
fluffing of a fabric can be suppressed.
[0170] In the treatment liquid composition for the ink jet pigment
textile printing according to this embodiment, the resin particles
are preferably nonionic or cationic resin particles. When the resin
particles are nonionic resin particles, a printed textile excellent
in color developability and rubbing fastness is obtained
particularly in the textile printing to cotton. When the resin
particles are cationic resin particles, a printed textile excellent
in color developability and rubbing fastness is obtained
particularly in the textile printing to a fabric containing
polyester or polyester mixed yarn.
3.6. Other Components
[0171] To the treatment liquid composition for ink jet pigment
textile printing according to this embodiment, pH adjusters,
antiseptic agents, antifungal agents, antirusts, chelating agents,
and the like may be added as necessary. As the other components,
the same substances illustrated in the ink composition described
above are usable.
3.7. Method for Preparing Treatment Liquid Composition for Ink Jet
Pigment Textile Printing
[0172] The treatment liquid composition for ink jet pigment textile
printing according to this embodiment can be produced by dispersing
and mixing the above-described components by a suitable method. The
above-described components are sufficiently stirred, and then
filtration is performed in order to remove coarse particles and
foreign substances causing clogging, whereby a target treatment
liquid can be obtained.
3.8. Physical Properties of Treatment Liquid Composition for Ink
Jet Pigment Textile Printing
[0173] When discharged by an ink jet recording head, the treatment
liquid composition for ink jet pigment textile printing according
to this embodiment has a surface tension at 20.degree. C. of
preferably 20 mN/m or more and 40 mN/m or less and more preferably
20 mN/m or more and 35 mN/m or less. For the measurement of the
surface tension, the measurement can be performed by, for example,
confirming the surface tension when a platinum plate is wetted with
an ink in a 20.degree. C. environment using an automatic surface
tensiometer CBVP-Z (Trade Name, manufactured by Kyowa Interface
Science Co., LTD.).
[0174] From the same viewpoint, the viscosity at 20.degree. C. of
the treatment liquid composition for ink jet pigment textile
printing according to this embodiment is preferably 3 mPas or more
and 10 mPas or less and more preferably 3 mPas or more and 8 mPas
or less. For the measurement of the viscosity, the viscosity in a
20.degree. C. environment can be measured using a viscoelasticity
testing machine MCR-300 (Trade Name, manufactured by Pysica), for
example.
3.9. Operations and Effects
[0175] As described above, the treatment liquid composition for ink
jet pigment textile printing according to this embodiment
suppresses the permeation of the ink into a fabric to suppress the
sinking of the pigment into the fabric by an operation of holding
the ink on the surface of the fabric by the nonionic fluorine-based
surfactant. Due to the fact that the surfactant is nonionic,
unevenness is hard to occur in color development. Thus, due to the
fact that the treatment liquid composition for ink jet pigment
textile printing contains the nonionic fluorine-based surfactant,
the permeation of the ink into a fabric is controlled, so that a
printed textile excellent in color developability and particularly
white color developability is obtained. Moreover, with the
treatment liquid composition set for ink jet pigment textile
printing containing the treatment liquid composition for ink jet
pigment textile printing according to this embodiment and the
pigment textile printing ink jet ink composition described above, a
printed textile excellent in color developability is obtained and,
particularly in two-layer printing of performing pigment textile
printing using the pigment textile printing ink jet ink
composition, and further performing pigment textile printing using
an ink containing a chromatic color pigment, a printed textile
excellent in color developability is obtained.
4. Fabric
[0176] The ink jet pigment textile printing method according to
this embodiment is performed using a fabric. Raw materials
configuring the fabric are not particularly limited and, for
example, natural fibers, such as cotton, hemp, wool, and silk,
synthetic fibers, such as polypropylene, polyester, acetate,
triacetate, polyamide, and polyurethane, and biodegradable fibers,
such as polylactic acid, and the like are mentioned, and mixed
fibers thereof may be acceptable. The fabric may be one obtained by
forming the fibers mentioned above into any form of textiles, knit
fabrics, nonwoven fabrics, and the like. The mass per unit area of
the fabric to be used in this embodiment is also not particularly
limited and is within the range of 1.0 oz (ounce) or more and 10.0
oz or less, preferably 2.0 oz or more and 9.0 oz or less, more
preferably 3.0 oz or more and 8.0 oz or less, and still more
preferably 4.0 oz or more and 7.0 oz or less. When the mass per
unit area of the fabric is within such a range, good recording
(textile printing) can be performed. Furthermore, the ink jet
pigment textile printing method according to this embodiment is
applicable to a plurality of kinds of fabrics different in mass per
unit area and can achieve good recording.
[0177] In this embodiment, the fabric can be a fabric containing
polyester or polyester mixed yarn. Examples of such a fabric
include a polyester fabric and a polyester mixed fabric, for
example. Examples of the polyester mixed fabric include a fabric in
which polyester is mixed in a proportion of 20% by mass or more,
preferably 50% by mass or more, and more preferably 70% by mass or
more, for example. The other mixed fibers are not limited and
cotton is mentioned. Such a polyester containing fabric is
excellent in the fact that the moisture, such as sweat, is easy to
dry but, on the other hand, the ink easily sinks downward in the
ink jet textile printing, so that the pigment or the resin is hard
to be fixed. In this embodiment, the textile printing is performed
using the treatment liquid composition for ink jet pigment textile
printing containing the nonionic fluorine-based surfactant
described above, and therefore excellent color developability is
achieved also in the pigment textile printing to the fabric
containing polyester or polyester mixed yarn in which the ink
easily sinks downward.
5. Ink Jet Pigment Textile Printing Method
[0178] Next, the ink jet pigment textile printing method according
to this embodiment is described for each process. The ink jet
pigment textile printing method according to this embodiment
includes attaching the pigment textile printing ink jet ink
composition to a region where the treatment liquid composition for
ink jet pigment textile printing according to this embodiment is
attached by an ink jet method.
5.1. Treatment Liquid Composition Attachment Process
[0179] The ink jet pigment textile printing method according to
this embodiment includes a treatment liquid composition attachment
process of attaching a treatment liquid composition for ink jet
pigment textile printing coagulating the components of the ink
composition before attaching the ink to a fabric in order to
improve the color development of a printed textile.
[0180] As the treatment liquid composition for ink jet pigment
textile printing to be attached to a fabric, the above-described
treatment liquid composition for ink jet pigment textile printing
is usable. The treatment liquid composition is preferably attached
so that the attachment amount is 0.02 g/cm.sup.2 or more and 0.5
g/cm.sup.2 or less and more preferably attached so that the
attachment amount is 0.02 g/cm.sup.2 or more and 0.24 g/cm.sup.2 or
less, for example. By setting the attachment amount of the
treatment liquid composition within the range mentioned above, the
treatment liquid composition is easily uniformly applied to a
fabric, the coagulation unevenness of an image can be suppressed,
and the color development can be improved.
[0181] In the treatment liquid composition attachment process, when
the treatment liquid composition contains a polyvalent metal salt,
the treatment liquid composition is preferably attached to a fabric
so that the attachment amount of the polyvalent metal salt
contained in the treatment liquid composition attached to the
fabric is 1.6 .mu.mol/cm.sup.2 or more and 6 .mu.mol/cm.sup.2 or
less and more preferably attached to a fabric so that the
attachment amount is 2 .mu.mol/cm.sup.2 or more and 5
.mu.mol/cm.sup.2 or less. By attaching the treatment liquid
composition so that the attachment amount of the polyvalent metal
salt is 1.6 .mu.mol/cm.sup.2 or more, the color developability of
an image to be recorded is improved. By attaching the treatment
liquid composition so that the attachment amount of the polyvalent
metal salt is 6 .mu.mol/cm.sup.2 or less, the rubbing fastness of
an image to be recorded is improved.
[0182] Examples of methods for attaching the treatment liquid
composition to a fabric include, for example, a method for dipping
a fabric into the treatment liquid composition (dip coating), a
method for applying the treatment liquid composition by a roll
coater or the like (roller coating), a method for ejecting the
treatment liquid composition with a spray device or the like (spray
coating), a method for ejecting the treatment liquid composition
with an ink jet system (ink jet coating), and the like and any
method may be used. Herein, when the ink jet textile printing is
performed using the printer 1 illustrated in FIGURE, the treatment
liquid composition is preferably attached to the fabric M from the
ink jet head 2 by the ink jet coating. When the treatment liquid
composition attachment process is performed by the ink jet coating,
the treatment liquid composition can be more uniformly attached to
the fabric M.
[0183] The ink jet pigment textile printing method according to
this embodiment may include a treatment liquid composition drying
process of drying the treatment liquid composition attached to a
fabric after the treatment liquid composition attachment process.
Although the drying of the treatment liquid composition may be
performed by natural drying, drying accompanied by heating is
preferable from the viewpoint of an improvement of drying speed.
When the drying process of the treatment liquid composition
involves heating, a heating method is not particularly limited and,
for example, a heat press method, a normal pressure steam method, a
high pressure steam method, and a thermofix method are mentioned.
Examples of the heat source of the heating include infrared rays
(lamp), for example.
5.2. Ink Composition Attachment Process
[0184] The ink composition attachment process includes attaching
the pigment textile printing ink jet ink composition to be used in
this embodiment to a region where the treatment liquid composition
for ink jet pigment textile printing is attached to a fabric.
Moreover, the ink composition attachment process may include a
process of attaching a chromatic color pigment textile printing ink
jet ink composition onto the region where the pigment textile
printing ink jet ink composition is attached. When the ink
composition attachment process has the two processes, two-layer
printing in which an image is formed by the chromatic color pigment
textile printing ink jet ink composition on an image formed by the
pigment textile printing ink jet ink composition is recorded.
[0185] The ink jet pigment textile printing method according to
this embodiment has the treatment liquid composition attachment
process using the treatment liquid composition for ink jet pigment
textile printing containing the nonionic fluorine-based surfactant,
and therefore the permeation of an ink attached in the
ink-composition attachment process is suppressed. Moreover, ink
components are coagulated by a reaction or an interaction of the
cationic compound of the treatment liquid composition and the ink
components. Thus, a printed textile excellent in color development
properties is obtained.
[0186] In the ink composition attachment process, when the pigment
textile printing ink jet ink composition is a white pigment textile
printing ink jet ink composition, the white pigment textile
printing ink jet ink composition is preferably attached so that the
maximum attachment amount to a fabric is 50 mg/cm.sup.2 or more and
200 mg/cm.sup.2 or less, more preferably attached so that the
maximum attachment amount to a fabric is 80 mg/cm.sup.2 or more and
150 mg/cm.sup.2 or less, and still more preferably attached so that
the maximum attachment amount to a fabric is 90 mg/cm.sup.2 or more
and 130 mg/cm.sup.2 or less. When the maximum attachment amount of
the white pigment textile printing ink jet ink composition is as
described above, the white color developability is improved, the
color development particularly when attached to a deep color fabric
is excellent, an image to be obtained is preferable as a background
image. The attachment amount within the range mentioned above is
preferable because there is a tendency that the rubbing fastness of
an image is excellent and coagulation unevenness is not
conspicuous.
[0187] On the other hand, in the ink composition attachment
process, the maximum attachment amount of the chromatic color
pigment textile printing ink jet ink composition can be set to 1
mg/cm.sup.2 or more and 200 mg/cm.sup.2 or less. It is preferable
to set the maximum attachment amount of the chromatic color pigment
textile printing ink jet ink composition to preferably 1
mg/cm.sup.2 or more and 30 mg/cm.sup.2 or less, more preferably 2
mg/cm.sup.2 or more and 25 mg/cm 2 or less, still more preferably 5
mg/cm.sup.2 or more and 20 mg/cm.sup.2 or less, and particularly
preferably 7 mg/cm.sup.2 or more and 15 mg/cm.sup.2 or less in the
points that the color developability of an image to be recorded is
improved, the drying property of an image to be recorded is
improved, the blurring of an image can be suppressed, and images,
such as pictures and characters, can be recorded on a fabric with
good reproducibility.
5.3. Heating Process
[0188] The ink jet pigment textile printing method according to
this embodiment preferably has a process of heating a fabric in the
ink composition attachment process. In the ink jet textile
printing, when a fabric is heated in the ink composition attachment
process, the viscosity and the surface tension decrease due to the
fact that the temperature of the ink is high, so that the ink
easily uniformly wets and spreads to the fabric and easily
permeates into the fabric. Moreover, in this embodiment, the
permeation of the ink is controlled by the nonionic fluorine-based
surfactant contained in the ink composition, and therefore the ink
uniformly wets and spreads onto the surface of a fabric. Thus, the
ink is easily fixed to a fabric, so that the leveling property is
improved and the rubbing fastness is excellent in the obtained
recorded matter. By attaching the ink composition onto a heated
fabric, the drying property of the ink can be improved and the
drying time can be shortened, so that damages to the fabric can be
suppressed.
[0189] Examples of a heating method for heating the ink composition
given to a fabric include the heating mechanism 6 illustrated in
FIGURE. As the heating mechanism, a heat press method, a normal
pressure steam method, a high pressure steam method, a hot air
drying method, a thermofix method, and the like are mentioned
besides the mechanism mentioned above.
[0190] In the heating process, the surface temperature of the
heated fabric is 35.degree. C. or more and 65.degree. C. or less.
Due to the fact that the surface temperature of the surface of the
fabric is within the range mentioned above, damages to an ink jet
head or a fabric can be reduced and the ink easily uniformly wets
and spreads to a fabric and easily permeates into a fabric. The
heating temperature in this heating process refers to the surface
temperature of the heated fabric and can be measured using a
noncontact thermometer (Trade Name "IT2-80", manufactured by
KEYENCE), for example. The surface temperature of the surface of
the heated fabric is preferably 40.degree. C. or more and more
preferably 45.degree. C. or more. The upper limit of the surface
temperature is preferably 60.degree. C. or less and more preferably
55.degree. C. or less.
[0191] The heating time is not particularly limited insofar as the
temperature of the fabric surface is within the temperature range
mentioned above and, for example, can be set to 5 seconds or more
and 1 minute or less and is preferably 10 seconds or more and 30
seconds or less. Due to the fact that the heating time is within
the range mentioned above, the fabric can be sufficiently heated
while reducing damages to an ink jet head or the fabric.
[0192] Besides the heating process, a process of heating or drying
the fabric M after the ink composition attachment process by
providing the second heating mechanism on the downstream side in
the transporting direction of the fabric M as described with
reference to FIGURE may be included. In this case, the second
heating mechanism is disposed on the downstream side in the
transporting direction of the fabric M relative to the heating
mechanism 6 of FIGURE. Thus, the drying property of droplets of the
ink attached to the fabric M can be improved. For the second
heating mechanism, any one of the mechanisms (for example, drier
mechanism and the like) described in the heating mechanism 6 are
usable.
[0193] The heating temperature in this case is not limited to the
following temperatures and is preferably 100.degree. C. or more and
200.degree. C. or less, preferably 120.degree. C. or more and
160.degree. C. or less when the fabric is cotton, and more
preferably 100.degree. C. or more and 140.degree. C. or less when
the fabric contains polyester or polyester mixed yarn. Due to the
fact that the heating temperature is within the range mentioned
above, a reduction in the damages to the fabric and the coating of
the resin particles contained in the ink composition can be
promoted. The heating time is not limited to the following time
and, for example, can be set to 30 seconds or more and 20 minutes
or less and is preferably 2 minutes or more and 7 minutes or less
and more preferably 3 minutes or more and 5 minutes or less. Due to
the fact that the heating time is within the range mentioned above,
the ink can be sufficiently dried while reducing damages to the
fabric.
5.4. Operations and Effects
[0194] As described above, according to the ink jet pigment textile
printing method according to this embodiment, an ink composition is
attached onto the treatment liquid composition for ink jet pigment
textile printing according to this embodiment, and therefore the
permeation of an ink attached in the ink-composition adhesion
process is suppressed. Moreover, the ink components are coagulated
by a reaction or an interaction of the cationic compound of the
treatment liquid composition and the ink components. Thus, a
printed textile excellent in color developability is obtained.
6. Examples and Comparative Examples
[0195] Hereinafter, the invention is described with reference to
Examples but the invention is not limited to Examples.
6.1. Preparation of White Ink
[0196] Each component was put into a container so as to have the
compositions of Table 1, mixed and stirred with a magnetic stirrer
for 2 hours, and further subjected to dispersion treatment in a
bead mill filled with zirconia beads 0.3 mm in diameter to be
sufficiently mixed. After stirred for 1 hour, filtration was
performed using a 5 .mu.m PTFE membrane filter, so that textile
printing ink jet ink compositions were obtained. The numerical
values in Table 1 indicate % by mass. Pure water (ion exchanged
water) was added so that the total mass of each white ink was 100%
by mass.
TABLE-US-00001 TABLE 1 White White ink 1 ink 2 Color ink 1 Pigment
(TiO.sub.2) 12.0 12.0 Pigment (C.I. Pigment Blue 15:3) 4.5
Water-dispersible resin 10.0 10.0 10.0 (TAKELAC WS-5100) Organic
Glycerol 5.0 5.0 5.0 solvent Ethylene glycol 5.0 5.0 5.0
1,2-hexanediol 1.0 1.0 1.0 Base KOH 0.2 0.2 0.2 Triethylamine 1.0
1.0 1.0 Surfactant FS-300 (Nonionic fluorine- 0.5 -- 0.5 based
surfactant) Olefin E1010 -- 0.5 -- Water Balance Balance
Balance
[0197] In Table 1, the details of components other than the
compound name are as follows.
[0198] Water-dispersible resin; TAKELAC WS-5100 (Trade Name,
manufactured by Mitsui Chemicals Polyurethanes Inc.,
Polycarbonate-based urethane resin containing a blocked isocyanate
as a crosslinkable group, The numerical values in the tables
indicate the solid content of the urethane resin.)
[0199] Fluorine-based surfactant; FS-300 (Trade Name, manufactured
by DuPont, Nonionic type)
6.2. Preparation of Treatment Liquid Composition
[0200] Each component was put in a container so as to have the
compositions of Tables 2 and 3, and then ion exchanged water was
added, so that the total mass was 100% by mass, and then the
mixture was mixed and stirred to give treatment liquids.
TABLE-US-00002 TABLE 2 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7
Cationic Calcium nitrate tetrahydrate 20 20 20 20 20 20 compound
Calcium chloride dehydrate Acetic acid 7.0 WS-4020 Resin Vinyblan
1008 (Cationic resin) 3.0 3.0 3.0 3.0 3.0 3.0 particles Vinyblan
1245L (Nonionic resin) 3.0 Surfactant FS-300 0.5 0.5 0.5 0.5 0.5
0.5 (Nonionic fluorine-based surfactant) S-241 0.5 (Nonionic
fluorine-based surfactant) S-221 (Cationic fluorine-based
surfactant) E1010 (Acetylene-based surfactant) Ion exchanged water
Balance Balance Balance Balance Balance Balance Balance Calcium ion
concentration (%) 3.4 3.4 3.4 3.4 3.4 3.4 -- Resin solid content
concentration (%) 1.5 1.5 1.5 1.2 1.5 1.5 1.5 Printing fabric PES
Cotton Mixed PES PES PES PES yarn Printing ink White White White
White White White White ink 1 ink 1 ink 1 ink 1 ink 1 ink 2 ink 1
Color developability A A A B A B B Rubbing fastness B B B B B B B
Treatment liquid storageability A A A A A A A Ex. 8 Ex. 9 Ex. 10
Ex. 11 Ex. 12 Ex. 13 Cationic Calcium nitrate tetrahydrate 7 29 20
20 20 20 compound Calcium chloride dehydrate Acetic acid WS-4020
Resin Vinyblan 1008 (Cationic resin) 3.0 3.0 1.0 10.5 3.0 3.0
particles Vinyblan 1245L (Nonionic resin) Surfactant FS-300 0.5 0.5
0.5 0.5 0.2 0.8 (Nonionic fluorine-based surfactant) S-241
(Nonionic fluorine-based surfactant) S-221 (Cationic fluorine-based
surfactant) E1010 (Acetylene-based surfactant) Ion exchanged water
Balance Balance Balance Balance Balance Balance Calcium ion
concentration (%) 1.2 4.9 3.4 3.4 3.4 3.4 Resin solid content
concentration (%) 1.5 1.5 0.5 5.3 1.5 1.5 Printing fabric PES PES
PES PES PES PES Printing ink White White White White White White
ink 1 ink 1 ink 1 ink 1 ink 1 ink 1 Color developability B A B A B
A Rubbing fastness B B B A B B Treatment liquid storageability A B
A B A B
TABLE-US-00003 TABLE 3 Comp. Comp. Comp. Comp. Comp. Comp. Ex. 14
Ex. 15 Ex. 16 Ex. 17 Ex. 18 Ex. 19 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5
Ex. 6 Cationic Calcium nitrate 33 20 20 20 20 20 20 20 20 compound
tetrahydrate Calcium chloride 12 dehydrate Acetic acid WS-4020 20
Resin Vinyblan 1008 3.0 3.0 1.2 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0
particles (Cationic resin) Vinyblan 1245L (Nonionic resin)
Surfactant FS-300 0.5 0.5 0.5 1.2 0.5 0.5 0.5 0.5 (Nonionic
fluorine- based surfactant) S-241 (Nonionic fluorine- based
surfactant) 0.5 S-221 (Cationic fluorine- based surfactant) 0.5
E1010 (Acetylene- based surfactant) Ion exchanged water Balance
Balance Balance Balance Balance Balance Balance Balance Balance
Balance Balance Balance Calcium ion concentration (%) 3.3 5.6 3.4
3.4 0 3.4 -- 3.4 3.4 3.4 3.4 3.4 Resin solid content concentration
1.5 1.5 6.0 1.5 1.5 1.5 1.5 0.0 1.5 1.5 1.5 1.5 (%) Printing fabric
PES PES PES PES PES PES PES PES PES Cotton PES PES Printing ink
White White White White White Color White White White White White
White ink 1 ink 1 ink 1 ink 1 ink 1 ink 1 ink 1 ink 1 ink 1 ink 1
ink 1 ink 1 Color developability A A A A B A D D E D D D Rubbing
fastness B B A C A B B D A A B B Treatment liquid storageability A
C C C A A A A A A B A
[0201] In Tables 2 and 3, the details of components other than the
compound name are as follows.
[0202] Cationic compound; WS-4020 (Trade Name, manufactured by
SEIKO PMC CORPORATION, Polyamide-epichlorohydrin copolymer)
[0203] Cationic resin; Vinyblan 1008 (Trade Name, manufactured by
Nisshin Chemical Co., Ltd., High ability sizing cation-modified
article containing modified vinyl acetate as a main component,
Solid content of 50%)
[0204] Nonionic resin; Vinyblan 1245L (Trade Name, manufactured by
Nisshin Chemical Co., Ltd., Vinyl acetate/Acrylic acid ester, Solid
content of 40%)
[0205] Fluorine-based surfactant; FS-300 (Trade Name, manufactured
by DuPont, Nonionic type)
[0206] Fluorine-based surfactant; S-241 (Trade Name "Surflon
S-241", manufactured by AGC SEIMI CHEMICAL CO., LTD., Nonionic
type)
[0207] Fluorine-based surfactant; S-221 (Trade Name "Surflon
S-221", manufactured by AGC SEIMI CHEMICAL CO., LTD., Nonionic
type)
[0208] Acetylene-based surfactant; E1010 (Trade Name "Olefin
E1010", manufactured by Nisshin Chemical Co., Ltd., Acetylene
glycol-based surfactant)
6.3. Production of Printed Matter
6.3.1. Pretreatment
[0209] A commercially-available T-shirt fabric was prepared as a
fabric, and then the treatment liquid composition obtained above
was uniformly applied thereto using a roller so as to be 18 to 20 g
per A4 size. After the application of the treatment liquid, heat
treatment was performed at 160.degree. C. for 1 minute with a heat
press machine. As T-shirts fabrics, the following three kinds of
fabrics were used.
T-Shirt Fabric
[0210] Cotton (manufactured by Hanes, Heavyweight black, 100%
cotton)
[0211] PES (glimmer ACTIVE WEAR, 3.5 oz, Dry T-shirt, Black, 100%
polyester)
[0212] Mixed yarn (Printstar, 4.6 oz, Honeycomb mesh T-shirt,
Black, Cotton/Polyester:45/55)
6.3.2. Printing of White Ink
[0213] A white ink was applied to the fabrics after the
pretreatment by an ink jet method using an ink jet printer
(PX-G930: manufactured by Seiko Epson Corp.). As a printing
pattern, printing was performed under the conditions where the
resolution was set to 1440.times.1440 dpi and solid printing was
overlapped 4 times to obtain fabrics printed with the white ink.
Thereafter, in order to confirm the whiteness, the fabrics after
the printing were heat treated at 160.degree. C. for 1 minute with
a heat press machine to fix the white ink to the fabrics to thereby
obtain fabrics printed with the white ink.
6.4. Evaluation Test
[0214] The obtained fabrics were evaluated for whiteness and
rubbing resistance.
6.4.1. Evaluation of Color Developability
[0215] For the fabrics after the printing, the L* value in the
CIE/L*a*b* color system was measured using a commercially-available
colorimeter (Product Name "Gretag Macbeth Spectrolino",
manufactured by X-Rite), and then determined based on the following
evaluation criteria. When the evaluation result is determined to be
B or higher, it can be said that the effects of the invention of
this application are obtained.
Evaluation Criteria of White Ink
A: 80.ltoreq.L*
B: 75.ltoreq.L*<80
C: 70.ltoreq.L*<75
D: 65.ltoreq.L*<70
E: L*<65
6.4.2. Evaluation of Rubbing Fastness
[0216] To the fabrics after the printing, a color fastness test to
rubbing was carried out using an I type (clock meter) testing
machine according to a drying test specified in ISO-105 X12. The
evaluation was performed using a contamination gray scale. The
evaluation criteria were as follows and the results are given in
the tables.
Evaluation Criteria
[0217] A: Rubbing fastness is Class 4 or higher. B: Rubbing
fastness is Class 3 or higher and less than Class 4. C: Rubbing
fastness is Class 2 or higher and less than Class 3. D: Rubbing
fastness is less than Class 2.
6.4.3. Evaluation of Treatment Liquid Storageability
[0218] The obtained treatment liquid was charged into a sample
bottle, and then allowed to stand at 60.degree. C. for 10 days.
Thereafter, the presence or absence of the generation of foreign
substances and printed matter were visually confirmed, and then
evaluated based on the following evaluation criteria.
Evaluation criteria A: No foreign substances were generated and the
printed matter also had no problem. B: Some foreign substances were
observed but the printed matter had no problem. C: Foreign
substances were observed and the printed matter was somewhat
changed in quality.
6.5. Evaluation Results
[0219] All Comparative Examples 1 to 6 outside the scope of the
invention had the results that the color developability was low.
First, Comparative Example 1 containing no cationic compounds had
the result that the color developability was low. Comparative
Example 2 containing the cationic compound but containing no resin
particles had the result that the color developability and the
rubbing fastness were low. Comparative Example 3 containing no
nonionic fluorine-based surfactant had the result that the color
developability was the lowest. Comparative Example 4 which had the
combination of Comparative Example 3 and which was printed to
cotton had the result that the color developability was slightly
higher than that of Comparative Example 3 but was low. Comparative
Examples 5 and 6 containing surfactants other than the nonionic
fluorine-based surfactant had the results that the color
developability was low.
[0220] Examples 1 to 19 had the results that the color
developability was higher than that of Comparative Examples 1 to 6.
In Example 1, not only the color developability but the rubbing
fastness was high to the PES used as the fabric and the treatment
liquid storageability was also high. Examples 2 and 3 which had the
combination of Example 1 and which were printed to the other
fabrics had the same result as that of Example 1.
[0221] In Example 4 containing a nonionic resin as resin particles,
the color developability slightly decreased. Example 5 containing a
nonionic fluorine-based surfactant different from that of Example 1
as the surfactant had the result that all the evaluations were high
similarly to Example 1.
[0222] In Example 6 containing a white ink different from that of
Example 1, the surfactant of the ink was an acetylene-based
surfactant, and therefore the color developability slightly
decreased. In Example 7 containing acetic acid as a cationic
compound unlike Example 1, the color developability slightly
decreased.
[0223] In Example 8 in which the content of the cationic compound
was lower than that of Example 1, the color developability slightly
decreased. On the other hand, Example 9 in which the content of the
cationic compound is higher than that of Example 1 had the result
that the treatment liquid storageability slightly decreased and
Example 15 having a much higher content had the result that the
treatment liquid storageability was low.
[0224] In Example 10 in which the content of the resin particles
was lower than that of Example 1, the color developability slightly
decreased. On the other hand, Example 11 in which the content of
the resin particles was higher than that of Example 1 had the
result that the treatment liquid storageability slightly decreased
and Example 16 having a much higher content had the result that the
treatment liquid storageability was low.
[0225] In Example 12 in which the content of the nonionic
fluorine-based surfactant was lower than that of Example 1, the
color developability slightly decreased. On the other hand, Example
13 in which the content of the nonionic fluorine-based surfactant
was higher than Example 1 had the result that the treatment liquid
storageability slightly decreased and Example 17 having a much
higher content had the result that the rubbing fastness and the
treatment liquid storageability were low.
[0226] Also Example 14 containing a polyvalent metal salt different
from that of Example 1 had the result that all the evaluations were
high similarly to Example 1.
[0227] In Example 18 containing a cationic compound different from
that of Example 1, the color developability slightly decreased as
compared with Example 1 but the rubbing fastness became high. Also
Example 19 containing a color ink had the same result as that of
Example 1.
[0228] The invention is not particularly limited to the embodiments
described above and can be variously modified. For example, the
invention includes the substantially same structures (e.g.,
structures with the same function(s), method(s), and result(s) or
structures with the same object(s) and effect(s)) as the structures
described in the embodiments. The invention also includes
structures in which non-essential portions of the structures
described in the embodiments are replaced. The invention also
includes structures that can demonstrate the same operational
effects or structures that can achieve the same objects as those in
the structures described in the embodiments. The invention also
includes structures in which known techniques are added to the
structures described in the embodiments.
[0229] The entire disclosure of Japanese Patent Application No.
2018-014731, filed Jan. 31, 2018 is expressly incorporated by
reference herein.
* * * * *