U.S. patent application number 10/192092 was filed with the patent office on 2003-05-29 for method for the trichromatic dyeing or printing of synthetic polyamide fibre materials.
Invention is credited to Gruner, Franz, Koch, Klaus, Mundle, Wolfgang, Schmiedl, Jurgen.
Application Number | 20030097721 10/192092 |
Document ID | / |
Family ID | 25738975 |
Filed Date | 2003-05-29 |
United States Patent
Application |
20030097721 |
Kind Code |
A1 |
Schmiedl, Jurgen ; et
al. |
May 29, 2003 |
Method for the trichromatic dyeing or printing of synthetic
polyamide fibre materials
Abstract
Method for the trichromatic dyeing or printing of synthetic
polyamide fiber material, wherein at least one red reactive dye of
formula 1 is used together with at least one of the yellow or
orange reactive dyes of formulae 2 and at least one blue reactive
dye of formula 3 in which formulae the variables are as defined in
claim 1, which method is distinguished by a uniform color build-up
and a very good combinability.
Inventors: |
Schmiedl, Jurgen; (Steinen,
DE) ; Koch, Klaus; (Muttenz, CH) ; Mundle,
Wolfgang; (Weil am Rhein, DE) ; Gruner, Franz;
(Schopfheim, DE) |
Correspondence
Address: |
CIBA SPECIALTY CHEMICALS CORPORATION
PATENT DEPARTMENT
540 WHITE PLAINS RD
P O BOX 2005
TARRYTOWN
NY
10591-9005
US
|
Family ID: |
25738975 |
Appl. No.: |
10/192092 |
Filed: |
July 10, 2002 |
Current U.S.
Class: |
8/445 |
Current CPC
Class: |
C09B 62/4413
20130101 |
Class at
Publication: |
8/445 |
International
Class: |
D06P 005/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 12, 2001 |
CH |
2001 1279/01 |
Oct 30, 2001 |
CH |
2001 1987/01 |
Claims
What is claimed is
1. A method for the trichromatic dyeing or printing of synthetic
polyamide fibre material, in which at least one red reactive dye of
formula 26is used together with at least one of the yellow or
orange reactive dyes of formulae 27and at least one blue reactive
dye of formula 28 in which formulae R.sub.1, R.sub.4, R.sub.6,
R.sub.10, R.sub.15 and R.sub.16 are each independently of the
others hydrogen, or C.sub.1-C.sub.4alkyl unsubstituted or
substituted by hydroxy, sulfo, sulfato, carboxy or by cyano,
R.sub.2, R.sub.5, R.sub.7, R.sub.13 and R.sub.14 are each
independently of the others hydrogen, C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, C.sub.2-C.sub.4alkanoylamino, ureido,
sulfamoyl, halogen, sulfo or carboxy, R.sub.3 is amino or N-mono-
or N,N-di-C.sub.1-C.sub.4alkylamino, R.sub.8 is hydrogen,
sulfomethyl, carbamoyl or cyano, R.sub.9 is C.sub.1-C.sub.4alkyl,
R.sub.11, and R.sub.12 are each independently of the other
hydrogen, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy, halogen,
sulfo or carboxy, B is a C.sub.2-C.sub.6alkylene radical, which may
be interrupted by 1, 2 or 3--O-- members and which is unsubstituted
or substituted by hydroxy or by sulfato, or a cyclohexylene radical
or methylene-cyclohexylene radical each of which is unsubstituted
or substituted by C.sub.1-C.sub.4alkyl, or a phenylene or
methylene-phenylene-methylene radical each of which is
unsubstituted or substituted by C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, halogen or by sulfo, I is the number 0 or 1,
k is the number 1, 2 or 3, and V.sub.1 is a radical of formula 29
in which formulae R.sub.17 and R.sub.19 are each independently of
the other hydrogen, or C.sub.1-C.sub.4alkyl unsubstituted or
substituted by hydroxy, sulfo, sulfato, carboxy or by cyano,
R.sub.18 is C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy, halogen or
sulfo, Z is the radical --CH.dbd.CH.sub.2 or
--CH.sub.2--CH.sub.2--Y and Y is a leaving group, m is the number
0, 1 or 2, n is the number 0 or 1, and V.sub.2, V.sub.3, V.sub.4
und V.sub.5 are each independently of the others a radical of the
above-indicated formula (6a), (6b), (6c) or (6d) or a radical of
formula 30 wherein R.sub.20 is hydrogen, or C.sub.1-C.sub.4alkyl
unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or
by cyano, and X is a radical 31 and Hal is bromine or chlorine,
with the proviso that the dye of formula (1) contains two sulfo
groups.
2. A method according to claim 1, wherein R.sub.1, R.sub.4,
R.sub.6, R.sub.10, R.sub.15, R.sub.16, R.sub.17, R.sub.19 and
R.sub.20 are each hydrogen.
3. A method according to claim 1, wherein R.sub.2, R.sub.5,
R.sub.7, R.sub.13 and R.sub.14 are each independently of the others
hydrogen, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy,
C.sub.2-C.sub.4alkanoylamino- , ureido, sulfo or carboxy, and
R.sub.11 and R.sub.12 are each independently of the other hydrogen,
C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy or sulfo.
4. A method according to claim 1, wherein R.sub.8 is hydrogen,
sulfomethyl or carbamoyl.
5. A method according to claim 1, wherein B is a
C.sub.2-C.sub.6alkylene radical, a methylene-cyclohexylene radical
unsubstituted or substituted by C.sub.1-C.sub.4alkyl, or a
phenylene or methylene-phenylene-methylene radical each of which is
unsubstituted or substituted by C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, halogen or by sulfo.
6. A method according to claim 1, wherein B is a radical of formula
32
7. A method according to claim 1, wherein I is the number 0.
8. A method according to claim 1, wherein V.sub.1, V.sub.2,
V.sub.3, V.sub.4 and V.sub.5 are each independently of the others a
radical of formula (6c) or (6d) in which R.sub.17, R.sub.18,
R.sub.19, Z, m and n are as defined in claim 1.
9. A method according to claim 1, wherein m is the number 0.
10. A method according to claim 1, wherein n is the number 0.
11. A method according to claim 1, wherein R.sub.1 is hydrogen,
R.sub.2 is sulfo, R.sub.3 is amino, I is the number 0, and V.sub.1
is a radical of formula (6c) in which R.sub.17 is hydrogen, Z is
vinyl and m is the number 0.
12. A method according to claim 1, wherein the reactive dye of
formula (1) is a reactive dye 33
13. A method according to claim 1, wherein an aftertreatment is
carried out at a pH value of from 7 to 12 and a temperature of from
30 to 100.degree. C.
14. A method according to claim 13, wherein a reducing agent is
added to the aftertreatment bath.
15. A reactive dye of formula 34wherein R.sub.1 and R.sub.17 are
each independently of the other hydrogen, or C.sub.1-C.sub.4alkyl
unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or
by cyano and Z is the radical --CH.dbd.CH.sub.2 or
--CH.sub.2--CH.sub.2--Y and Y is a leaving group.
16. A process for dyeing or printing natural or synthetic polyamide
fibre material, which comprises applying to said fibre material a
reactive dye of formula (1b) according to claim 15.
17. A process according to claim 16, for dyeing or printing
synthetic polyamide fibre material.
Description
[0001] The present invention relates to a method of trichromatic
dyeing or printing and to the red reactive dyes especially suitable
for that purpose.
[0002] The problem underlying the present invention was to find a
method of dyeing or printing synthetic polyamide fibre materials,
for example woven carpet fabrics, using reactive dyes suitable for
combination according to the trichromatic principle.
[0003] It has now been found that the problem can be solved
according to the invention by the method described hereinbelow. The
dyeings so obtained meet the set objectives in a special manner.
The dyeings obtained are distinguished especially by uniform colour
build-up and, at the same time, constancy of shade at different
concentrations, and by good combinability, and exhibit good fibre
levelness and no dichroism.
[0004] The present invention accordingly relates to a method for
the trichromatic dyeing or printing of synthetic polyamide fibre
material in which at least one red reactive dye of formula 4
[0005] is used together with at least one of the yellow or orange
reactive dyes of formulae 5
[0006] and at least one blue reactive dye of formula 6
[0007] in which formulae
[0008] R.sub.1, R.sub.4, R.sub.6, R.sub.10, R.sub.15 and R.sub.16
are each independently of the others hydrogen, or
C.sub.1-C.sub.4alkyl unsubstituted or substituted by hydroxy,
sulfo, sulfato, carboxy or by cyano,
[0009] R.sub.2, R.sub.5, R.sub.7, R.sub.13 and R.sub.14 are each
independently of the others hydrogen, C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, C.sub.2-C.sub.4alkanoylamino, ureido,
sulfamoyl, halogen, sulfo or carboxy,
[0010] R.sub.3 is amino or N-mono- or
N,N-di-C.sub.1-C.sub.4alkylamino,
[0011] R.sub.8 is hydrogen, sulfomethyl, carbamoyl or cyano,
[0012] R.sub.9 is C.sub.1-C.sub.4alkyl,
[0013] R.sub.11, and R.sub.12 are each independently of the other
hydrogen, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy, halogen,
sulfo or carboxy,
[0014] B is a C.sub.2-C.sub.6alkylene radical, which may be
interrupted by 1, 2 or 3 --O-- members and which is unsubstituted
or substituted by hydroxy or by sulfato, or
[0015] a cyclohexylene radical or methylene-cyclohexylene radical
each of which is unsubstituted or substituted by
C.sub.1-C.sub.4alkyl, or
[0016] a phenylene or methylene-phenylene-methylene radical each of
which is unsubstituted or substituted by C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, halogen or by sulfo,
[0017] I is the number 0 or 1,
[0018] k is the number 1, 2 or 3, and
[0019] V.sub.1 is a radical of formula 7
[0020] in which formulae
[0021] R.sub.17 and R.sub.19 are each independently of the other
hydrogen, or C.sub.1-C.sub.4alkyl unsubstituted or substituted by
hydroxy, sulfo, sulfato, carboxy or by cyano,
[0022] R.sub.18 is C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy,
halogen or sulfo,
[0023] Z is the radical --CH.dbd.CH.sub.2 or
--CH.sub.2--CH.sub.2--Y and Y is a leaving group,
[0024] m is the number 0, 1 or 2,
[0025] n is the number 0 or 1, and
[0026] V.sub.2, V.sub.3, V.sub.4 und V.sub.5 are each independently
of the others a radical of the above-indicated formula (6a), (6b),
(6c) or (6d) or a radical of formula 8
[0027] wherein
[0028] R.sub.20 is hydrogen, or C.sub.1-C.sub.4alkyl unsubstituted
or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano,
and
[0029] X is a radical 9
[0030] and Hal or and Hal is bromine or chlorine,
[0031] with the proviso that
[0032] the dye of formula (1) contains two sulfo groups.
[0033] The radicals R.sub.1, R.sub.4, R.sub.6, R.sub.10, R.sub.15,
R.sub.16, R.sub.17, R.sub.19 and R.sub.20 as alkyl radicals are
straight chain or branched. The alkyl radicals may in turn be
substituted by hydroxy, sulfo, sulfato, cyano or by carboxy.
Examples that may be mentioned are methyl, ethyl, n-propyl,
isopropyl, n-butyl, isobutyl, sec-butyl and tert-butyl, and the
corresponding radicals substituted by hydroxy, sulfo, sulfato,
cyano or by carboxy. Preferred substituents are hydroxy, sulfo or
sulfato, especially hydroxy or sulfato and more especially
hydroxy.
[0034] According to one interesting embodiment, when B is a
C.sub.2-C.sub.6alkylene radical that may be interrupted by 1, 2 or
3 --O-- members and is unsubstituted or substituted by hydroxy or
by sulfato, one of the radicals R.sub.15 and R.sub.16 is
C.sub.1-C.sub.4alkyl substituted by hydroxy, sulfo, sulfato, cyano
or by carboxy and the other of the radicals R.sub.15 and R.sub.16
is hydrogen or C.sub.1-C.sub.4alkyl, especially hydrogen.
[0035] C.sub.1-C.sub.4Alkyl radicals that come into consideration
for R.sub.2, R.sub.5, R.sub.7, R.sub.11, R.sub.12, R.sub.13,
R.sub.14 and R.sub.18, each independently of the others, are, for
example, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl,
tert-butyl and isobutyl, preferably methyl and ethyl and especially
methyl.
[0036] R.sub.9 as C.sub.1-C.sub.4alkyl is, for example, methyl,
ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl or
isobutyl, preferably methyl or ethyl and especially ethyl.
[0037] C.sub.1-C.sub.4Alkoxy radicals that come into consideration
for R.sub.2, R.sub.5, R.sub.7, R.sub.11, R.sub.12, R.sub.13,
R.sub.14 and R.sub.18, each independently of the others, are, for
example, methoxy, ethoxy, propoxy, isopropoxy, n-butoxy,
sec-butoxy, tert-butoxy and isobutoxy, preferably methoxy and
ethoxy, and especially methoxy.
[0038] C.sub.2-C.sub.4Alkanoylamino radicals that come into
consideration for R.sub.2, R.sub.5, R.sub.7, R.sub.13 and R.sub.14,
each independently of the others, are, for example, acetylamino and
propionylamino and especially acetylamino.
[0039] Halogen atoms that come into consideration for R.sub.2,
R.sub.5, R.sub.7, R.sub.11, R.sub.12, R.sub.13, R.sub.14 and
R.sub.18each independently of the others, are, for example,
fluorine, chlorine and bromine, preferably chlorine and bromine,
and especially chlorine.
[0040] N-mono- and N,N-di-C.sub.1-C.sub.4alkylamino radicals that
come into consideration for R.sub.3, are, for example, methylamino,
ethylamino, n-propylamino, n-butylamino, N,N-dimethylamino and
N,N-diethylamino, preferably methylamino, ethylamino,
N,N-dimethylamino and N,N-diethylamino, and especially methylamino,
ethylamino and N,N-dimethylamino.
[0041] For B denoting a cyclohexylene radical or
methylene-cyclohexylene radical each of which is unsubstituted or
substituted by C.sub.1-C.sub.4alkyl, or denoting a phenylene or
methylene-phenylene-meth- ylene radical each of which is
unsubstituted or substituted by C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, halogen or by sulfo, there come into
consideration as C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and
halogen, for example, the radicals and their preferred meanings
indicated above for R.sub.2, R.sub.5, R.sub.7, R.sub.11, R.sub.12,
R.sub.13, R.sub.14 and R.sub.18.
[0042] The leaving group Y is, for example --Cl, --Br, --F,
--OSO.sub.3H, --SSO.sub.3H, --OCO--CH.sub.3, --OPO.sub.3H.sub.2,
--OCO--C.sub.6H.sub.5, --OSO.sub.2--C.sub.1-C.sub.4alkyl or
--OSO.sub.2--N(C.sub.1-C.sub.4alkyl)- .sub.2. Y is preferably a
group of formula --Cl, --OSO.sub.3H, --SSO.sub.3H, --OCO--CH.sub.3,
--OCO--C.sub.6H.sub.5 or --OPO.sub.3H.sub.2, especially --Cl,
--OSO.sub.3H or --OCO--CH.sub.3 and more especially --Cl or
--OSO.sub.3H.
[0043] R.sub.1, R.sub.4, R.sub.6, R.sub.10, R.sub.15, R.sub.16,
R.sub.17, R.sub.19 and R.sub.20 are preferably, each independently
of the others, hydrogen or C.sub.1-C.sub.4alkyl, especially
hydrogen, methyl or ethyl.
[0044] R.sub.1, R.sub.4, R.sub.6, R.sub.10, R.sub.15, R.sub.16,
R.sub.17, R.sub.19 and R.sub.20 are especially preferably
hydrogen.
[0045] Preferably, R.sub.2, R.sub.5, R.sub.7, R.sub.13 and R.sub.14
are each independently of the others hydrogen,
C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy,
C.sub.2-C.sub.4alkanoylamino, ureido, sulfo or carboxy, especially
hydrogen, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy,
C.sub.2-C.sub.4alkanoylamino, ureido or sulfo, and R.sub.11 and
R.sub.12 are each independently of the other hydrogen,
C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy or sulfo, especially
hydrogen, C.sub.1-C.sub.4alkyl or C.sub.1-C.sub.4alkoxy.
[0046] Especially preferably, R.sub.2 is sulfo, R.sub.5 is ureido
or C.sub.2-C.sub.4alkanoylamino, especially ureido, and R.sub.7,
R.sub.11, R.sub.12, R.sub.13 and R.sub.14 are hydrogen.
[0047] R.sub.3 is preferably amino.
[0048] R.sub.8 is preferably hydrogen, sulfomethyl or carbamoyl,
especially hydrogen or sulfomethyl and more especially
hydrogen.
[0049] B is preferably a C.sub.2-C.sub.6alkylene radical, a
methylene-cyclohexylene radical unsubstituted or substituted by
C.sub.1-C.sub.4alkyl, or a phenylene or
methylene-phenylene-methylene radical each of which is
unsubstituted or substituted by C.sub.1-C.sub.4alkyl,
C.sub.1-C.sub.4alkoxy, halogen or by sulfo.
[0050] B is especially preferably a radical of formula 10
[0051] especially of formula 11
[0052] R.sub.18 is preferably methyl, methoxy or sulfo, especially
methyl or methoxy.
[0053] Z is preferably the radical --CH.dbd.CH.sub.2.
[0054] V.sub.1, V2, V3, V.sub.4 und V.sub.5 are preferably, each
independently of the others, a radical of formula (6c) or (6d),
wherein R.sub.17, R.sub.18, R.sub.19, Z, m und n have the meanings
and preferred meanings indicated above.
[0055] I is preferably the number 0.
[0056] k is preferably the number 2 or 3, especially 3.
[0057] A suitable naphthyl radical in the dye of formula (4) is
preferably a radical of formula 12
[0058] m is preferably the number 0.
[0059] n is preferably the number 0.
[0060] Hal is preferably bromine.
[0061] The radical of formula (6c) is preferably a radical of
formula 13
[0062] wherein Z has the meanings and preferred meanings given
above.
[0063] The radical of formula (6d) ist preferably a radical of
formula 14
[0064] wherein Z has the meanings and preferred meanings given
above.
[0065] Preference is given to the method according to the invention
in which, in the reactive dye of formula (1),
[0066] R.sub.1 is hydrogen, R.sub.2 is sulfo, R.sub.3 is amino, I
is the number 0 and V.sub.1 is a radical of formula (6c) wherein
R.sub.17 is hydrogen, Z is vinyl and m is the number 0.
[0067] Special preference is given to the method according to the
invention in which the reactive dye of formula (1) is a reactive
dye 15
[0068] Preference is given to the method according to the invention
in which, in the reactive dye of formula (2),
[0069] R.sub.4 is hydrogen, R.sub.5 is ureido and V.sub.2 is a
radical of formula (6c) wherein R.sub.17 is hydrogen, Z is vinyl
and m is the number 0.
[0070] Preference is given to the method according to the invention
in which, in the reactive dye of formula (3),
[0071] R.sub.6, R.sub.7 and R.sub.8 are hydrogen, R.sub.9 is ethyl
and V.sub.3 is a radical of formula (6c) wherein R.sub.17 is
hydrogen, Z is vinyl and m is the number 0.
[0072] Preference is given to the method according to the invention
in which, in the reactive dye of formula (4),
[0073] R.sub.10, R.sub.11, R.sub.12, R.sub.13 and R.sub.14 are
hydrogen, V.sub.4 is a radical of formula (6d) wherein R.sub.19 is
hydrogen, Z is vinyl and n is the number 0, and k is the number
3.
[0074] Preference is given to the method according to the invention
in which, in the reactive dye of formula (5),
[0075] R.sub.15 and R.sub.16 are hydrogen, B is a radical of the
above formula (7a) or (7b), preferably of formula (7b), and V.sub.5
is a radical of formula (6d) wherein R.sub.19 is hydrogen, Z is
vinyl and n is the number 0.
[0076] A suitable yellow or orange reactive dye for the method
according to the invention is preferably a dye of formula (3) or
(4), especially of formula (4), in which the variables have the
meanings and preferred meanings indicated hereinabove.
[0077] The reactive dyes of formulae (1), (2), (3), (4) and (5) are
known or can be prepared in analogy to known compounds.
[0078] The present invention relates also to the novel reactive
dyes of formula 16
[0079] wherein
[0080] R.sub.1, R.sub.17 and Z have the meanings and preferred
meanings indicated hereinabove.
[0081] The reactive dye of formula (1b) is obtained, for example,
by reacting the compounds of formulae 17
[0082] in which formulae
[0083] R.sub.1, R.sub.17 and Y have the meanings and preferred
meanings given hereinabove and Y is especially sulfato, with
cyanuric chloride, followed, where appropriate, by an elimination
reaction.
[0084] The individual process steps indicated above can be carried
out in different orders or, in some instances, simultaneously, and
so various process variants are possible. The reaction is generally
carried out stepwise, the order in which the single reactions
between the individual reaction components are carried out
advantageously being geared to the particular conditions. For
example, a compound of formula (9) is reacted with cyanuric
chloride and the resulting product is then condensed with a
compound of formula (10). Preferably, a compound of formula (10) is
reacted with cyanuric chloride and the resulting product is then
condensed with a compound of formula (9).
[0085] The individual condensation reactions are carried out, for
example, according to methods known per se, usually in aqueous
solution, at a temperature of, for example, from 0 to 50.degree.
C., especially from 0 to 10.degree. C., and a pH value of, for
example, from 3 to 10, especially from 3 to 7.
[0086] In addition, an elimination reaction may be carried out
after the synthesis. For example, reactive dyes of formula (1b)
that contain sulfatoethylsulfonyl radicals can be treated with a
base, for example sodium hydroxide, the sulfatoethylsulfonyl
radicals being converted into vinylsulfonyl radicals.
[0087] The compounds of formulae (9) and (10) are known or can be
prepared in analogy to known compounds.
[0088] The reactive dyes used in the trichromatic dyeing or
printing method according to the invention and the reactive dyes of
formula (1b) according to the invention are present either in their
free sulfonic acid form or, preferably, in the form of a salt
thereof.
[0089] Suitable salts are, for example, alkali metal, alkaline
earth metal or ammonium salts or salts of an organic amine.
Examples that may be mentioned are sodium, lithium, potassium or
ammonium salts or a mono-, di- or tri-ethanolamine salt.
[0090] The reactive dyes used in the method according to the
invention and the reactive dyes of formula (1b) according to the
invention may comprise further additives, for example sodium
chloride or dextrin.
[0091] The trichromatic dyeing or printing method according to the
invention and the reactive dyes of formula (1b) according to the
invention can be utilised in the customary dyeing and printing
methods. The dye liquors or printing pastes, in addition to
comprising water and the dyes, may comprise further additives, for
example wetting agents, antifoams, levelling agents or agents that
influence the characteristics of the textile material, for example
softeners, flame-retardant additives, or dirt-, water- and
oil-repellents, and also water-softeners and natural or synthetic
thickeners, for example alginates and cellulose ethers.
[0092] The amounts in which the individual dyes are used in the dye
baths or printing pastes can vary within wide limits depending on
the required depth of shade; in general, amounts of from 0.01 to
15% by weight, especially from 0.1 to 10% by weight, based on the
material to be dyed and the printing paste have proved to be
advantageous.
[0093] In the case of woven carpet fabrics, printing methods such
as, for example, displacement printing or space dyeing are
important.
[0094] Preference is given to dyeing, which is carried out
especially by the exhaust process and, in the case of carpet
dyeing, can also be carried out in accordance with the continuous
process.
[0095] Dyeing is preferably carried out at a pH of from 2 to 7,
especially from 2.5 to 5.5 and more especially from 2.5 to 4. The
liquor ratio can be selected within a wide range, for example from
1:5 to 1:50, preferably from 1:5 to 1:30. Dyeing is preferably
carried out at a temperature of from 80 to 130.degree. C.,
especially from 85 to 120.degree. C.
[0096] To increase the fastness to wetting properties, any unfixed
dye can be removed by an aftertreatment at a pH value of, for
example, from 7 to 12, especially from 7 to 9, and at a temperature
of, for example, from 30 to 100.degree. C., especially from 50 to
80.degree. C. Advantageously, in the case of intense colour shades,
for example very deep dyeings, especially on fibre blends, the
unfixed dye can be removed reductively by the addition of a
reducing agent, for example hydrosulfite, such as sodium
hydrosulfite, to the alkaline aftertreatment bath. The dye fixed in
the polyamide fibre material is not affected by the treatment. The
reducing agent is advantageously added in an amount of, for
example, from 0.1 to 6% by weight, especially from 0.5 to 5% by
weight, based on the weight of the aftertreatment bath.
[0097] When employed in trichromatic dyeing or printing, the
reactive dyes used in the method according to the invention and the
reactive dyes of formula (1b) according to the invention are
distinguished by uniform colour build-up, good pick-up and fixing
characteristics, good constancy of shade even at different
concentrations, good fastness properties and, especially, by very
good combinability.
[0098] The trichromatic method according to the invention and the
reactive dyes of formula (1b) according to the invention are
suitable for dyeing or printing synthetic polyamide fibre
materials, such as, for example, polyamide 6
(poly-.epsilon.-caprolactam), polyamide 6.6
(polyhexamethyleneadipic amide), polyamide 7, polyamide 6.12
(polyhexamethylenedodecanoic amide), polyamide 11 or polyamide 12,
copolyamides with polyamide 6.6 or polyamide 6, for example
polymers of hexamethylenediamine, F-caprolactam and adipic acid and
polymers of adipic acid, hexamethylenediamine and isophthalic acid
or of adipic acid, hexamethylenediamine and
2-methylpentamethylenediamine or 2-ethyltetramethylenediamine, and
are also suitable for dyeing or printing blended fabrics or yarns
of synthetic polyamide and wool.
[0099] The method according to the invention and the reactive dyes
according to the invention are advantageously also suitable for
dyeing or printing microfibres of synthetic polyamides. Microfibres
are to be understood as fibre materials that are composed of
threads having an individual thread fineness of less than 1 denier
(1.1 dTex). Such microfibres are known and are usually produced by
melt-spinning
[0100] The reactive dyes of formula (1b) according to the invention
are also suitable for dyeing or printing natural polyamide fibre
materials, for example wool or silk, especially wool and wool
having a machine-wash-resistant finish.
[0101] The dyeing or printing of synthetic polyamide fibre
materials is preferred.
[0102] The said textile material can be in a very wide variety of
processing forms, for example in the form of fibres, yarn, woven
fabric, knitted fabric and in the form of carpets.
[0103] Level dyeings having good all-round fastness properties,
especially good fastness to rubbing, to wetting, to wet rubbing and
to light, are obtained.
[0104] In the Examples that follow, parts indicate parts by weight.
The temperatures are in degrees Celsius. The relationship between
parts by weight and parts by volume is the same as that between
grams and cubic centimeters.
PREPARATION EXAMPLE 1
[0105] a) 7 parts of a compound that in free acid form corresponds
to formula 18
[0106] are stirred in 100 parts of water, adjusted to pH 6 by the
addition of 0.35 part of Na.sub.2HPO.sub.4.12H.sub.2O and cooled to
a temperature of 0.degree. C. A solution of 4.85 parts of cyanuric
chloride and 50 parts of acetone is added dropwise in the course of
from 10 to 15 minutes to the suspension so obtained, the pH being
maintained at 3 by the addition of aqueous sodium hydroxide
solution. Stirring is then carried out for one hour at a
temperature of from 0 to 2.degree. C. and a pH value of 3. After
the addition of sodium chloride, stirring is continued for a
further hour.
[0107] b) 7.5 parts of a compound that in free acid form
corresponds to formula 19
[0108] are dissolved in 100 parts of water and 11.1 parts of 1N
sodium hydroxide solution at room temperature and a pH value of
5.5. The resulting solution is then added dropwise in the course of
45 minutes to the solution obtained according to a). During the
addition, the pH is maintained at a value of from 5.8 to 6 by the
addition of aqueous sodium hydrogen carbonate solution. Stirring is
carried out for 90 minutes at room temperature and a pH value of
from 5.8 to 6. The dye is then filtered off, subsequently washed
with aqueous 10% sodium chloride solution and dried at a
temperature of from 30 to 35.degree. C.
[0109] c) In order to convert the dye obtained according to b) into
the vinylsulfone form, an aqueous solution of the dye is adjusted
to pH 10 using trisodium phosphate and stirred for 30 minutes at
room temperature. The pH is monitored continuously and corrected
where necessary. The end of the reaction is indicated when the pH
remains constant. A dye is obtained that in free acid form
corresponds to the compound of formula 20
[0110] The dye of formula (101) dyes wool, silk and synthetic
polyamide fibre material in red colour shades.
Method Example 1
[0111] A polyamide 6.6 woven carpet fabric is continuously dyed
from a dyebath containing, per 1000 parts of dye bath,
[0112] 0.28 part of the red dye of formula 21
[0113] 0.8 part of the yellow dye of formula 22
[0114] 0.46 part of the blue dye of formula 23
[0115] and also 1.0 part of a customary commercial thickener, 3.0
parts of a customary commercial antifreeze, 1.0 part of a non-ionic
wetting agent, and sufficient citric acid to render the dye bath pH
5.5. The woven carpet fabric is then fixed in steam for 5 minutes
at 100.degree. C., washed in the usual manner and dried. The woven
carpet fabric is distinguished by a uniform dark-brown dyeing
having good fastness properties.
Method Examples 2 and 3
[0116] By proceeding as indicated in Example 1 but, instead of
using 0.28 part of the red dye of formula (101), 0.8 part of the
yellow dye of formula (102) and 0.46 part of the blue dye of
formula (103), using the reactive dyes indicated in column 2 of the
following Table 1 in the amounts specified therein, there are
likewise obtained brown dyeings that are distinguished by good
levelness and good fastness properties.
1TABLE 1 Ex. Dye 2 0.45 part of the red dye of formula (101), 0.40
part of the blue dye of formula (103) and 0.70 part of the yellow
dye of formula 24 (104) 3 0.45 part of the red dye of formula
(101), 0.40 part of the blue dye of formula (103) and 0.42 part of
the yellow dye of formula (105) 25
Method Example 3
[0117] 100 kg of texturised polyamide 6.6 tricot are treated in a
dyeing apparatus for 10 min. at 40.degree. C. with 2000 l of liquor
containing 4 kg of acetic acid, 0.5 kg of wetting agent and 1 kg of
a levelling agent. The pH of the liquor is 3.4. Subsequently, 430 g
of the dye of formula (102), 300 g of the dye of formula (101) and
330 g of the dye of formula (103), predissolved in a small amount
of water, are added.
[0118] The material to be dyed is treated for 5 min. at 40.degree.
C. in the dyeing liquor and then heated to 98.degree. C. at a rate
of 1.degree. C./min. and dyed at that temperature for 60 min. The
dyeing is finished in the usual manner. A level dyeing having very
good fastness properties is obtained
Method Example 4
[0119] 70 kg of a woven fabric of polyamide 6.6 microfibres are
treated in a dyeing apparatus for 10 min. at 40.degree. C. with
1500 l of liquor containing 3 kg of formic acid, 0.4 kg of wetting
agent and 0.7 kg of a levelling agent. The pH of the liquor is 2.9.
Subsequently, 700 g of the dye of formula (102), 1300 g of the dye
of formula (101) and 430 g of the dye of formula (103),
predissolved in a small amount of water, are added. The material to
be dyed is treated for 5 min. at 40.degree. C. in the dyeing liquor
and then heated to 110.degree. C. at a rate of 1.degree. C./min.
and dyed at that temperature for 60 min. After the dyeing, an
alkaline aftertreatment is carried out to improve fastness to
wetting properties. For that purpose, using a fresh bath containing
2 g/l of sodium carbonate and having a pH of 9.2, the dyeing is
treated for 20 min. at 60.degree. C. The dyeing is then rinsed and
finished in the usual manner. A level dyeing having excellent
fastness properties is obtained.
Method Example 5
[0120] The procedure is as described in Method Example 4, except
that the alkaline aftertreatment is carried out at 70.degree. C.
instead of at 60.degree. C.
Method Example 6
[0121] The procedure is as described in Method Example 4, except
that the alkaline aftertreatment is carried out in a bath
containing 5 g/l of sodium carbonate and 5 g/l of hydrosulfite. The
dyeing is treated with that bath for 20 min. at 70.degree. C.
Method Example 7 (Space Dyeing)
[0122] A carpet of polyamide 6 yarn is first of all pad-dyed with a
liquor containing, per 1000 parts of liquor, the following
components:
[0123] 0.01 part of the yellow dye of formula (102)
[0124] 0.003 part of the red dye of formula (101),
[0125] 0.008 part of the blue dye of formula (103),
[0126] 3.00 parts of a customary commercial thickener,
[0127] 2.00 parts of a customary commercial non-ionic wetting
agent,
[0128] 1.00 part of a customary commercial antifreeze, the pH being
adjusted to 5 using the required amount of citric acid.
[0129] Parts of the dyed carpet are then printed with a printing
paste containing, per 1000 parts of printing paste, the following
components:
[0130] 0.50 part of the red dye of formula (101),
[0131] 0.50 part of the blue dye of formula (103),
[0132] 15.0 parts of a customary commercial thickener,
[0133] 2.00 parts of a customary commercial non-ionic wetting
agent,
[0134] 1.00 part of a customary commercial antifreeze,
[0135] the pH being adjusted to 5 using the required amount of
citric acid The dyed and partially printed carpet is then treated
with saturated steam for 5 minutes at 100.degree. C., washed in
customary manner and dried. The carpet so obtained has, on a
beige-coloured ground, red-printed areas which are distinguished by
good levelness with good fastness properties.
Method Example 8 (Continuous Dyeing)
[0136] A carpet of polyamide 6.6 yarn is dyed continuously with a
liquor containing, per 1000 parts of liquor, the following
components:
[0137] 0.8 part of the yellow dye of formula (102)
[0138] 0.28 part of the red dye of formula (101),
[0139] 0.46 part of the blue dye of formula (103),
[0140] 1.00 part of a customary commercial thickener,
[0141] 1.00 part of a customary commercial non-ionic wetting
agent,
[0142] 3.00 parts of a customary commercial antifreeze,
[0143] the pH being adjusted to 5.5 using the required amount of
citric acid. The dyed carpet fabric is then treated with saturated
steam for 5 minutes at 100.degree. C., washed in customary manner
and dried. The carpet obtained in that manner is distinguished by a
level dark-brown dyeing having very good fastness properties.
Method Example 9 (Displacement Printing)
[0144] A carpet of polyamide 6.6 yarn is first of all printed with
various printing pastes containing the following components, some
of which are in varying amounts x, y and z:
[0145] x parts of Tectilone.RTM. yellow 3R (Ciba Specialty
Chemicals),
[0146] y parts of Tectilon.RTM. red 2B (Ciba Specialty
Chemicals),
[0147] z parts of Tectilone.RTM. blue 4R-01 (Ciba Specialty
Chemicals),
[0148] for example x is 1.05, y is 0.34 and z is 1.01,
[0149] 15.0 parts of a customary commercial thickener,
[0150] 10.0 parts of Lyoprint.RTM. MP
[0151] 2.00 parts of a customary commercial non-ionic wetting
agent,
[0152] 1.00 part of a customary commercial antifreeze,
[0153] the pH being adjusted to 4 using the required amount of
citric acid.
[0154] The printed carpet is then dyed with a liquor containing,
per 1000 parts of liquor, the following components (the liquor
pick-up is 350%):
[0155] 1.26 parts of the yellow dye of formula (102)
[0156] 0.62 part of the red dye of formula (101),
[0157] 1.90 parts of the blue dye of formula (103),
[0158] 1.00 part of a customary commercial thickener,
[0159] 2.00 parts of a customary commercial non-ionic wetting
agent,
[0160] 2.00 parts of a customary commercial antifreeze,
[0161] the pH being adjusted to 5.5 using the required amount of
citric acid.
[0162] The carpet is then treated with saturated steam for 5
minutes at 100.degree. C., washed in customary manner and dried.
The carpet so obtained has, on a dark-violet ground, coloured areas
which are distinguished by good levelness with good fastness
properties.
* * * * *