U.S. patent application number 14/119358 was filed with the patent office on 2016-03-10 for high moisture transferable textile sheet.
The applicant listed for this patent is Kung Chan Ko. Invention is credited to Kung Chan Ko.
Application Number | 20160069017 14/119358 |
Document ID | / |
Family ID | 49726494 |
Filed Date | 2016-03-10 |
United States Patent
Application |
20160069017 |
Kind Code |
A1 |
Ko; Kung Chan |
March 10, 2016 |
HIGH MOISTURE TRANSFERABLE TEXTILE SHEET
Abstract
Disclosed herein is a moisture transferable textile sheet of
single layer. The moisture transferable textile sheet according to
the present invention, hygroscopicity polymers are conformally
coated on a top layer, and water-repellenting composition is
partially coated on a bottom layer. Water in contact with the
bottom layer is rapidly absorbed in the hygroscopicity polymers by
a water-repellenting layer, so that water is transferred in one
direction.
Inventors: |
Ko; Kung Chan; (Yongin-si,
Gyeonggi-do, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ko; Kung Chan |
Yongin-si, Gyeonggi-do |
|
KR |
|
|
Family ID: |
49726494 |
Appl. No.: |
14/119358 |
Filed: |
August 12, 2013 |
PCT Filed: |
August 12, 2013 |
PCT NO: |
PCT/KR2013/007243 |
371 Date: |
November 21, 2013 |
Current U.S.
Class: |
428/196 ;
442/67 |
Current CPC
Class: |
A41B 2400/60 20130101;
D10B 2501/00 20130101; D10B 2501/02 20130101; D06M 15/53 20130101;
D10B 2401/021 20130101; D06M 15/03 20130101; D06N 3/186 20130101;
D10B 2401/022 20130101; D06M 15/09 20130101; D06M 15/333 20130101;
D06M 23/16 20130101; D06M 15/15 20130101; D10B 2503/06
20130101 |
International
Class: |
D06N 3/18 20060101
D06N003/18 |
Foreign Application Data
Date |
Code |
Application Number |
May 15, 2013 |
KR |
10-2013-0055124 |
Claims
1. A high moisture textile sheet comprising a water-repellenting
layer formed by conformally coating high hygroscopicity polymers on
a top layer of the textile sheet and partially coating
water-repellenting composition on a bottom layer of the textile
sheet.
2. The textile sheet according to claim 1, wherein a particle size
of the high hygroscopicity polymers is ranged from 10 .mu.m to 100
.mu.m.
3. The textile sheet according to claim 1, wherein a gap not
including the water-repellenting composition and having a size of
0.1 mm to 10 mm is formed on the water-repellenting layer.
4. The textile sheet according to claim 1, wherein the
water-repellenting composition includes a water-repellenting agent
and a binder.
5. The textile sheet according to claim 1, wherein the
water-repellenting composition is coated to 60% to 95% of a surface
area of the bottom layer.
6. The textile sheet according to claim 1, wherein the
water-repellenting composition is coated in a shape of dot or
stripe.
Description
TECHNICAL FIELD
[0001] The present invention relates to a high moisture
transferable textile sheet, and more particularly to a high
moisture transferable textile sheet capable of keeping drying
condition by rapidly transferring moisture in contact with a bottom
layer of the sheet to be transferred in one direction.
BACKGROUND ART
[0002] In recent years, there is a tendency toward increases in
high-function and multifunction of materials as diversification,
individuation tendency, and high-quality. In specifically,
high-performance of synthetic fabrics has been developed in making
up for weakness of natural fabrics as well as maximizing advantages
of synthetic fabrics. Typical examples are sweat-absorbing and
quick-drying fabrics, antistatic fabrics, fabrics having
ultra-violet blocking function, and secondary fabrics thereof.
[0003] In the sweat-absorbing and quick-drying fabrics, gas-phase
sweat is absorbed in materials and then evaporated to the outside.
Thus, it is very important of absorbing content and anti-moisture
speed in managing sweat. Also, in managing liquid-phase sweat,
capillary phenomenon (make absorbing speed fast by minute pores and
enlarge diffusion surface of water) by minute pores between fabrics
is important factor.
[0004] Sweat-absorbing and quick-drying materials are taught in,
e.g., Japanese Patent Laid-Open Publication No. 1991-213546
mentioned earlier. This patent discloses a textile material having
parts of a high abundance density of fiber and parts of a low
abundance density of fiber. In this patent, since moisture is
transferred from bottom to top using only density contrast, there
are functional limitations for sport clothing.
[0005] To overcome these limitations, sweat-absorbing and
quick-drying fabrics by forming middle-transition layer or using
density contrast of a top layer and a bottom layer. Korean Patent
No. 0574056 discloses "A fabric having sweat absorption and quick
drying property with double structure". Sweat-absorbing and
quick-drying fabric with double structure comprises a surface layer
contacting with the outside and a rear layer contacting with the
skin. The surface layer is manufactured out of polyester or
false-twisted yarn having nylon circular section structure. Mono
denier of the surface layer is over 1 denier and less than 5
deniers. The rear layer is manufactured out of at least one
selected from the group consisting of polyester, twisted yarn
having nylon circular section structure, A.T.Y, and I.T.Y. Mono
denier of the rear layer is over 0.2 denier and less than 1
denier.
[0006] In the above-mentioned Korean Patent, moisture can be
transferred, but it is not easy to manufacture the fabric because
the fabric is formed with two layers having different texture
density and kinds. Also, there is a disadvantage in making the
fabric thin because the fabric is formed with two layers.
DISCLOSURE
Technical Problem
[0007] The present invention has been made in an effort to solve
the above problems, and it is an object of the present invention to
provide a high moisture transferable textile sheet capable of
keeping drying condition by rapidly transferring moisture in
contact with a bottom layer of the sheet to be transferred in one
direction.
[0008] It is another object of the present invention to provide a
high moisture transferable textile sheet having a cooling film on a
top layer of the sheet by water transition.
[0009] It is still another object of the present invention to
provide a high moisture transferable textile sheet preventing
moisture on a top layer of the sheet from being inflowing to a
bottom layer of the sheet.
Technical Solution
[0010] Pursuant to embodiments of the present invention, a high
moisture textile sheet comprises a water-repellenting layer formed
by conformally coating high hygroscopicity polymers on a top layer
of the textile sheet and partially coating water-repellenting
composition on a bottom layer of the textile sheet.
[0011] Pursuant to embodiments of the present invention, a particle
size of the high hygroscopicity polymers is ranged from 10 .mu.m to
100 .mu.m.
[0012] Pursuant to embodiments of the present invention, the high
hygroscopicity polymers are coated mixed with a binder.
[0013] Pursuant to embodiments of the present invention, a gap not
including the water-repellenting composition and having a size of
0.1 mm to 10 mm is formed on the water-repellenting layer.
[0014] Pursuant to embodiments of the present invention, the
water-repellenting composition includes a water-repellenting agent
and the binder.
[0015] Pursuant to embodiments of the present invention, the
water-repellenting composition is one of fluorine-based
water-repellenting agent, silicon-based water-repellenting agent,
and acrylic-based agent.
[0016] Pursuant to embodiments of the present invention, the
water-repellenting composition is coated to 60% to 95% of a surface
area of the bottom layer.
[0017] Pursuant to embodiments of the present invention, the
water-repellenting composition is coated in a shape of dot or
stripe.
Advantageous Effects
[0018] According to the present invention, the high moisture
transferable textile sheet is formed in a single structure but is
capable of keeping drying condition by rapidly transferring
moisture in one direction through processing the top and bottom
layers thereof.
[0019] Further, the high moisture transferable textile sheet
according to the present invention has excellent absorbing function
and shows rapid drying speed to be suitable for various clothes for
sports and bed clothes.
DESCRIPTION OF DRAWINGS
[0020] FIG. 1 is a cross-sectional view showing a high moisture
transferable textile sheet according to the present invention.
[0021] FIG. 2 is a cross-sectional view showing acts of the high
moisture transferable textile sheet according to the present
invention.
[0022] FIG. 3 shows an embodiment of a water-repellenting layer of
the high moisture transferable textile sheet according to the
present invention.
[0023] FIG. 4 shows another embodiment of a water-repellenting
layer of the high moisture transferable textile sheet according to
the present invention.
BRIEF EXPLANATION OF ESSENTIAL PARTS OF THE DRAWINGS
[0024] 100: Water-repellenting layer, 200: High hygroscopicity
polymer
BEST MODE
[0025] Embodiments of the present invention now will be described
more fully hereinafter with reference to the accompanying drawings,
in which embodiments of the invention are shown. This invention
may, however, be embodied in many different forms and should not be
construed as limited to the embodiments set forth herein. Rather,
these embodiments are provided so that this disclosure will be
thorough and complete, and will fully convey the scope of the
invention to those skilled in the art. Like numbers refer to like
elements throughout.
[0026] As used herein, the terms "about", "substantially", etc. are
intended to allow some leeway in mathematical exactness to account
for tolerances that are acceptable in the trade and to prevent any
unconscientious violator from unduly taking advantage of the
disclosure in which exact or absolute numerical values are given so
as to help understand the invention.
[0027] As utilized herein, the term "fabric" is intended to include
articles produced by weaving or knitting, non-woven fabrics, fiber
webs, and so forth.
[0028] FIG. 1 is a cross-sectional view showing a high moisture
transferable textile sheet according to the present invention. FIG.
2 is a cross-sectional view showing acts of the high moisture
transferable textile sheet according to the present invention. FIG.
3 shows an embodiment of a water-repellenting layer of the high
moisture transferable textile sheet according to the present
invention. FIG. 4 shows another embodiment of a water-repellenting
layer of the high moisture transferable textile sheet according to
the present invention.
[0029] As shown in FIGS. 1 and 2, the high moisture textile sheet
comprises a water-repellenting layer 100 formed by conformally
coating high hygroscopicity polymers 200 on a top layer of the
textile sheet 10 and partially coating water-repellenting
composition on a bottom layer of the textile sheet 10.
[0030] For processibility and moisture transition, a hydrophylizing
process is preferably performed with respect to the textile sheet
10 before the high hygroscopicity polymers 200 and the
water-repellenting layer are coated. The hydrophylizing process may
be performed in a widely used way.
[0031] The high hygroscopicity polymers 200 is formed in a 3
dimensional network structure according to cross-linked between
polymeric chains or a single chain structure and shows absorbing
phenomenon of fluid by attaching hydroplilic group. That is, water
is absorbed in short time and emits it in a long time. Accordingly,
the high hygroscopicity polymers 200 are mainly used in a field of
hygienic articles like diapers or napkins, civil engineering, and
architecture. Recently, they have been widely used as materials in
agriculture and industry fields. For this reason, various kinds of
high hygroscopicity polymers have been developed.
[0032] As the high hygroscopicity polymers of the present invention
200, all high hygroscopicity polymers being not harmful to body are
applicable. Non-limiting examples are poly-acryl amide,
poly-acrylic acid, poly-meta-acrylic acid, polyethylene oxide,
polyvinyl alcohol, and as natural polymers, gelatin,
poly-saccharides, sodium carboxyl-methyl cellulose, and
chitosan.
[0033] A particle size of the high hygroscopicity polymers 200
should be properly controlled for functions thereof and touch
feeling of the textile sheet.
[0034] Therefore, if the particle size of the high hygroscopicity
polymers 200 is less than 10 .mu.m, their function may be declined.
On the contrary, if the particle size of the high hygroscopicity
polymers 200 exceeds 100 .mu.m, touch feeling of the textile sheet
may be bad. Preferably, the particle size of the high
hygroscopicity polymers 200 is ranged from 10 .mu.m to 100
.mu.m.
[0035] The high hygroscopicity polymers 200 are mixed with a binder
to be conformally coated by various coating ways. In this case, any
kind of binders employed in fabrics is applicable. Also, the binder
is preferably hydroplilic binder.
[0036] The hydroplilic binder is one of polyvinyl alcohol-based
polymers, polyvinyl pyrrolidone-based polymers, cellulose based
polymers, starch, polyethylene oxide-based polymers, acrylic-based
polymers, polyester-based polymers, polyurethane-based polymers or
polyethylene imine-based polymers, or a mixture thereof.
[0037] After the mixture of the high hygroscopicity polymers 200
and the binder is coated on the top layer of the textile sheet
using spray, dipping, or printing, the high hygroscopicity polymers
200 may be fixed on the top layer of the textile sheet.
[0038] The water-repellenting layer 100 is formed of
water-repellenting composition, which is a mixture of
water-repellenting agent and a binder.
[0039] The water-repellenting agent is hydrophobic resin and is not
limited. Fluorine-based water-repellenting agent, silicon-based
water-repellenting agent, acrylic-based water-repellenting agent,
polyethylene-based water-repellenting agent, polypropylene-based
water-repellenting agent, polyamide-based water-repellenting agent,
or polyester-based water-repellenting agent can be adopted.
Fluorine-based water-repellenting agent, silicon-based
water-repellenting agent, and acrylic-based water-repellenting
agent with excellent processibility may be selectively adopted.
[0040] It is preferable that the water-repellenting composition is
mixed with a binder for improving processibility.
[0041] As an example, the water-repellenting agent and the binder
may be mixed in a weight ratio of 1:2 to 8. For enhancing
processibility, solvent or thicker may be further included.
[0042] The binder mixed with the water-repellenting agent is one of
acrylic-based binder, polyester-based binder or polyurethane-based
binder, or a mixture thereof.
[0043] The water-repellenting layer 100 is formed by partially
coating the water-repellenting composition on the bottom layer of
the textile sheet in a fine thickness.
[0044] The water-repellenting layer 100 may be coated in various
shapes such as a dot of FIG. 3 or stripe of FIG. 4. Also, the
water-repellenting layer 100 may be formed in a standardized
pattern like the dot or stripe and amorphous pattern.
[0045] The water-repellenting layer 100 is partially coated on
bottom layer of the textile sheet, and thereby forming a gap in
which the water-repellenting composition is not coated on the
bottom layer of the textile sheet. The gap is positioned between
the water-repellenting layers 100 and performs a function as a path
where moisture pushed from the water-repellenting layer 100 is
moved to the high hygroscopicity polymers 200 of the top layer of
the textile sheet. In other words, as shown in FIG. 2, if the
water-repellenting layer 100 coated with water-repellenting
composition on the bottom layer of the textile sheet to minute
thickness is in contact with moisture, the moisture is not absorbed
in the water-repellenting layer 100 and pushed out to the gap. Such
moisture in the gap where the water-repellenting layer 100 becomes
absorbed in the high hygroscopicity polymers 200.
[0046] The volume of the high hygroscopicity polymers 200 absorbing
the moisture is increased than when drying, so that they form a
cooling film on the surface of the textile sheet.
[0047] The gap without the water-repellenting composition is a path
in which moisture is moved. If the gap is too wide or narrow,
moisture transition speed becomes down. Accordingly, it is
preferable that the gap without the water-repellenting composition
has a size of 0.1 mm to 10 mm.
[0048] The water-repellenting layer 100 pushes out moisture on the
bottom layer of the textile sheet to transfer the textile sheet and
high hygroscopicity polymers 200. For smoothly performing these
functions, it is preferable that the water-repellenting layer 100
is coated to 60% to 95% of the surface area of the bottom layer of
the textile sheet. If the water-repellenting composition is coated
less than 60% or exceeding 95% of the surface area of the bottom
layer, moisture transition function may be reduced.
[0049] The high moisture transferable textile sheet of the present
invention rapidly transfers moisture like sweat generated from skin
to the top layer of the textile sheet, thereby keeping dryness on
the bottom layer thereof. That is, the absolute moisture content of
the textile sheet is not decreased, and the moisture contained on a
face in contact with skin is fast moved to the outside (diffusion
to another layer or surrounding circumstance). As a result,
moisture does not exist in the face in contact with skin, and
existing moisture content is dramatically reduced.
[0050] Therefore, if the contained moisture content can be rapidly
diffused to another layer assuming that moisture content contained
in the textile sheet, users can feel dry and refresh. Accordingly,
sweat-absorbing and quick-drying can be embodied irrespective of
absolute evaporation and drying quantity of moisture.
MODE FOR INVENTION
[0051] Hereinafter, while this invention has been described in
connection with what is presently considered to be the most
practical and preferred embodiment, it is to be understood that the
invention is not limited to the disclosed embodiment.
EXAMPLE
[0052] A high hygroscopicity polymer having a particle size of 70
.mu.m and a polyurethane-based binder were coated in weight ratio
of 1:2 on one side of polyester fabric. A water-repellenting
composition mixed with the polyurethane-based binder and silicon
water-repellenting agent in weight ratio of 4:1 was coated on the
other side of the fabric to form a water-repellenting layer.
[0053] The water-repellenting layer was coated with
water-repellenting composition as shown in FIG. 3, and a gap
without the water-repellenting composition in the
water-repellenting layer was formed having a size of 0.2 mm to 0.8
mm
EVALUATION EXPERIMENT
[0054] The moisture transition in one direction of a high moisture
transferable textile sheet according to the present invention was
measured by AATCC 195-2009 (moisture movement measuring test
method) test method.
[0055] Moisture movement was measured by dropping distilled water
on one side of the textile sheet. In the high moisture transferable
textile sheet manufactured by the above embodiment, moisture
movement was measured by dropping distilled water on the other side
of a water-repellenting layer.
[0056] As a comparative example, polyester fabric without any
processing was used.
TABLE-US-00001 TABLE 1 WT.sub.T WT.sub.B AR.sub.T AR.sub.B
MWR.sub.T MWR.sub.B SS.sub.T SS.sub.B R Classification (Sec.)
(Sec.) (%/sec.) (%/sec.) (mm) (mm) (mm/sec.) (mm/sec.) (%) OMMC
Example 3.09 3.19 17.24 26.86 25 25 4.21 4.28 255.8 0.64
Comparative 3.41 3.41 94.06 52.44 25 25 4.93 4.93 -55.66 0.37
Example WT.sub.T: Top wetting time (sec) WT.sub.B: Bottom wetting
Time (sec) AR.sub.T: Top absorption rate (%/sec.) AR.sub.B: Bottom
absorption rate (%/sec.) MWR.sub.T: Top max wetting radius (mm)
MWR.sub.B: Bottom max wetting radius (mm) SS.sub.T: Top spreading
speed (mm/sec.) SS.sub.B: Bottom spreading speed (mm/sec.) R: One
way transport capability (%) OMMC: Overall moisture management
capacity
[0057] As shown in table 1, moisture transition value (R value) in
one direction was -55.66%, and it found that moisture was not
transferred to a bottom layer and much more remained in a top
layer. However, in the example of the high moisture transferable
textile sheet, R value was 255.8%. Thus, it is found that most
moisture of a water-repellenting layer was transferred to the
bottom layer in which high hygroscopicity polymers was formed.
[0058] It represented that distilled water dropped on the
water-repellenting layer was moved to a gap without a
water-repellenting composition and absorbed in the high
hygroscopicity polymers through the gap.
[0059] Although the present invention has been described herein
with reference to the foregoing embodiments and the accompanying
drawings, the scope of the present invention is defined by the
claims that follow. Accordingly, those skilled in the art will
appreciate that various substitutions, modifications and changes
are possible, without departing from the spirit of the present
invention as disclosed in the accompanying claims. It is to be
understood that such substitutions, modifications and changes are
within the scope of the present invention.
[0060] Particularly, it should, of course, be understood that the
conductive fabric of the present invention can be used as a circuit
board or a part of an electronic device although smart wear only
has been mentioned throughout the specification.
* * * * *