High wet fastness disperse dye mixtures
阅读说明：本技术 高湿牢度分散染料混合物 (High wet fastness disperse dye mixtures ) 是由 克莱门斯·格鲁恩德 曼弗雷德·霍普 阿德里安·默加特洛伊德 维尔纳·蒂森 范妮·弗曼德尔 于 2018-09-13 设计创作，主要内容包括：本发明涉及包含式(1)所示染料和特定的其他染料的染料混合物<Image he="335" wi="700" file="DDA0002519262290000011.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>这些混合物的生产方法和它们在染色纺织品上的应用。(The present invention relates to dye mixtures comprising a dye of the formula (1) and specific further dyes)
1. The dye mixture comprises
At least one dye of formula (1)
And
at least one dye selected from the group consisting of the dyes of formulae (3a), (3b), (3c), (3d), (3e), (3f), (3g), (3h) and (3i)
Wherein, independently of each other,
R1is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl, - (CH)2)n-COO-R100Or- (CH)2)n-CN，
R2Is hydrogen, -NH-CO- (C)1-C4) -alkyl or (C)1-C4) -an alkyl group,
R3is hydrogen or (C)1-C4) -an alkyl group,
R4and R5Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl, - (CH)2)n-COO-(C1-C4) -alkyl or-CHCH3-COO-(C1-C4) -an alkyl group,
R6and R7Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -an alkoxy group or a halogen,
R8and R9Is hydrogen, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
R10and R11Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
R12～R16is hydrogen or (C)1-C4) -an alkyl group,
R100is (C)1-C4) -an alkyl group,A phenyl group or a benzyl group, and a pharmaceutically acceptable salt thereof,
X1and X2Hydrogen, nitro, cyano, halogen or carboxyl,
X3and X4Is hydrogen, cyano or halogen,
Y1is hydrogen, - (CH)2)m-phenyl, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
T1～T3is hydrogen, carboxyl, (C)1-C4) Alkyl radicals, (C)1-C4) -alkoxy, halogen, cyano or nitro,
n is 1, 2, 3 or 4,
m is 1, 2, 3 or 4,
v is hydrogen, OH, O- (C)1-C4) -alkyl, halogen, -O-CH2-CO-CH3、-CH2-pyrrolidone (-CH)2-pyrolidonyl) or-SO2-NH-(CH2)n-O-(C1-C4) -an alkyl group,
k is 2 to 8, and
U1and U2Is composed of
Wherein represents a connecting benzene ring.
2. The dye mixture according to claim 1, wherein, independently of one another,
R1is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or- (CH)2)n-CN，
R2Is hydrogen, -NH-CO- (C)1-C2) -alkyl or (C)1-C2) -an alkyl group,
R3is hydrogen, methyl or ethyl, and is,
R4and R5Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or-CHCH3-COO-(C1-C2) -an alkyl group,
R6and R7Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkoxy, bromo or chloro,
R8and R9Is hydrogen, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
R10and R11Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkoxy, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
R12～R16is hydrogen or (C)1-C2) -an alkyl group,
X1and X2Is hydrogen, nitro, cyano, bromo, chloro or-COO (C)1-C2) -an alkyl group,
X3and X4Is hydrogen, bromine or chlorine,
Y1is hydrogen, - (CH)2)m-phenyl, (C)1-C2) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
T1～T3is hydrogen, -COO (C)1-C2) -alkyl, bromo, chloro, cyano or nitro,
n is 1, 2 or 3,
m is 1, 2 or 3,
v is hydrogen, OH, O- (C)1-C2) -alkyl, halogen, -O-CH2-CO-CH3、-CH2-pyrrolidone (-CH)2-pyrolidonyl) or-SO2-NH-(CH2)n-O-(C1-C2) -an alkyl group,
k is 3 to 6, and
U1and U2Is composed of
Wherein represents a connecting benzene ring.
3. Dye mixture according to claim 1 or 2, wherein each is independent of the other
R1Is ethyl, cyanoethyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
R2is hydrogen or NH-COCH3，
R3Is a methyl group or an ethyl group,
R4and R5Is (C)1-C2) -alkyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or-CHCH3-COO-(C1-C2) -an alkyl group,
R6、R7、R12～R16and T2Is a hydrogen atom, and is,
R8and R9Is- (CH)2)n-COO-(C1-C2) -an alkyl group,
R10and R11Is- (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
X1、X2、X3、T1and T3Hydrogen, nitro, cyano, bromine or chlorine,
X4is a bromine or a cyano group, or a salt thereof,
Y1is- (CH)2)m-phenyl, (C)1-C2) Alkyl radicals, (C)1-C4) -alkenyl, (C)1-C2) -alkoxy, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
n and m are 1 or 2, and
U1and U2Is composed of
Wherein represents a connecting benzene ring.
4. A dye mixture according to any one of claims 1 to 3, wherein the dye or dyes of formula (1) is/are selected from the group consisting of:
5. a dye mixture according to any one of claims 1 to 4, wherein the dye or dyes of formula (3a) is/are selected from the group consisting of:
6. a dye mixture according to any one of claims 1 to 5, wherein the dye or dyes of formula (3b) is/are selected from the group consisting of:
7. a dye mixture according to any one of claims 1 to 6, wherein the dye or dyes of formula (3c) is/are selected from the group consisting of:
8. a dye mixture according to any one of claims 1 to 7, wherein the dye or dyes of formula (3d) is/are selected from the group consisting of:
9. a dye mixture according to any one of claims 1 to 8, wherein the dye or dyes of formula (3e) is/are selected from the group consisting of:
10. a dye mixture according to any one of claims 1 to 9, wherein the dye or dyes of formula (3f) is/are selected from the group consisting of:
11. a dye mixture according to any one of claims 1 to 10, wherein the dye or dyes of formula (3i) is/are selected from the group consisting of:
12. a dye mixture as claimed in any one of claims 1 to 11, wherein the dye content is, in% by weight of the total amount of dyes in the mixture:
(1)80～20％
the total amount of (3a/3b/3c/3d/3e/3f/3g/3h/3i) (3a/3b/3c/3d/3e/3f/3g/3h/3i) is 20-80%.
13. A process for producing a dye mixture as claimed in any one of claims 1 to 12, which comprises
a) Mixing at least one dye of formula (1) with at least one dye of any of formulae (3a) to (3i), and
b) homogenizing the mixture obtained in step a).
14. An aqueous solution of a dye mixture as claimed in any one of claims 1 to 13.
(I) technical field
The invention relates to a disperse dye mixture with high wet fastness.
(II) background of the invention
Disperse azo dyes of the formula (1) and processes for their production are known, for example from patent EP 3063228, but they are still deficient in their application properties.
Surprisingly, it has now been found that the incorporation of further disperse dyes selected from the group of dyes of formulae (3a) to (3i) with specific dyes of formula (1) improves their application properties, in particular wet fastness, build-up and light fastness, on polyesters and polyester blends.
The dyes of the formulae (3a) to (3i) are also known and can be prepared by known procedures, for example in the patents WO 2009/037215, WO 2008/049758, WO 2005/056690, WO 2000/040656, US 3980634, EP 0667376, WO2002/068539, WO 2002/074864, EP 0436940, EP 0555179, EP 0894830 and WO 2004/044058.
(III) technical content
Accordingly, the present invention provides a dye mixture comprising
At least one dye of formula (1)
And
at least one dye selected from the group consisting of the dyes of formulae (3a), (3b), (3c), (3d), (3e), (3f), (3g), (3h) and (3i)
Wherein, independently of each other
R1Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl, - (CH)2)n-COO-R100Or- (CH)2)n-CN，
R2Is hydrogen, -NH-CO- (C)1-C4) -alkyl or (C)1-C4) -an alkyl group,
R3is hydrogen or (C)1-C4) -an alkyl group,
R4and R5Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl, - (CH)2)n-COO-(C1-C4) -alkyl or-CHCH3-COO-(C1-C4) -an alkyl group,
R6and R7Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -an alkoxy group or a halogen,
R8and R9Is hydrogen, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
R10and R11Is hydrogen, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
R12～R16is hydrogen or (C)1-C4) -an alkyl group,
R100is (C)1-C4) -an alkyl, phenyl or benzyl group,
X1and X2Hydrogen, nitro, cyano, halogen or carboxyl,
X3and X4Is hydrogen, cyano or halogen,
Y1is hydrogen, - (CH)2)m-phenyl, (C)1-C4) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C4) -alkyl, - (CH)2)n-O-CO-(C1-C4) -alkyl or- (CH)2)n-COO-(C1-C4) -an alkyl group,
T1～T3is hydrogen, carboxyl, (C)1-C4) Alkyl radicals, (C)1-C4) -alkoxy, halogen, cyano or nitro,
n is 1, 2, 3 or 4,
m is 1, 2, 3 or 4,
v is hydrogen, OH, O- (C)1-C4) -alkyl, halogen, -O-CH2-CO-CH3、-CH2-pyrrolidone (-CH)2-pyrolidonyl) or-SO2-NH-(CH2)n-O-(C1-C4) -an alkyl group,
k is 2 to 8, and
U1and U2Is composed of
Wherein represents a connecting benzene ring.
A dye mixture as described above, wherein, independently of one another,
R1is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or- (CH)2)n-CN，
R2Is hydrogen, -NH-CO- (C)1-C2) -alkyl or (C)1-C2) -an alkyl group,
R3is hydrogen, methyl or ethyl, and is,
R4and R5Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or-CHCH3-COO-(C1-C2) -an alkyl group,
R6and R7Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkoxy, bromo or chloro,
R8and R9Is hydrogen, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
R10and R11Is hydrogen, (C)1-C2) Alkyl radicals, (C)1-C2) -alkoxy, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl radicalOr- (CH)2)n-COO-(C1-C2) -an alkyl group,
R12～R16is hydrogen or (C)1-C2) -an alkyl group,
X1and X2Is hydrogen, nitro, cyano, bromo, chloro or-COO (C)1-C2) -an alkyl group,
X3and X4Is hydrogen, bromine or chlorine,
Y1is hydrogen, - (CH)2)m-phenyl, (C)1-C2) Alkyl radicals, (C)1-C4) -alkenyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
T1～T3is hydrogen, -COO (C)1-C2) -alkyl, bromo, chloro, cyano or nitro,
n is 1, 2 or 3,
m is 1, 2 or 3,
v is hydrogen, OH, O- (C)1-C2) -alkyl, halogen, -O-CH2-CO-CH3、-CH2-pyrrolidone (-CH)2-pyrolidonyl) or-SO2-NH-(CH2)n-O-(C1-C2) -an alkyl group,
k is 3 to 6, and
U1and U2Is composed of
Wherein represents a connecting benzene ring,
forming a preferred aspect of the present invention.
More preferably a dye compound as described above, wherein independently of each other,
R1is ethyl, cyanoethyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
R2is hydrogen or NH-COCH3，
R3Is a methyl group or an ethyl group,
R4and R5Is (C)1-C2) -alkyl, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl, - (CH)2)n-COO-(C1-C2) -alkyl or-CHCH3-COO-(C1-C2) -an alkyl group,
R6、R7、R12～R16and T2Is a hydrogen atom, and is,
R8and R9Is- (CH)2)n-COO-(C1-C2) -an alkyl group,
R10and R11Is- (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
X1、X2、X3、T1and T3Hydrogen, nitro, cyano, bromine or chlorine,
X4is a bromine or a cyano group, or a salt thereof,
Y1is- (CH)2)m-phenyl, (C)1-C2) Alkyl radicals, (C)1-C4) -alkenyl, (C)1-C2) -alkoxy, - (CH)2)n-O-(C1-C2) -alkyl, - (CH)2)n-O-CO-(C1-C2) -alkyl or- (CH)2)n-COO-(C1-C2) -an alkyl group,
n and m are 1 or 2, and
U1and U2Is composed of
Wherein represents a connecting benzene ring.
The above dye mixture may comprise, for example, one dye of formula (1) and, for example, one dye of formula (3 a). They may also comprise one dye, for example of formula (1), and two different dyes, for example of formula (3 a). Dye mixtures comprising, for example, one dye of formula (1), one dye of formula (3a) and one dye of formula (3b) will form a further aspect of the invention. Mixtures comprising, for example, two, three or more different dyes of formula (1) and one dye of, for example, formula (3a) also form an aspect of the present invention. The same is true for mixtures comprising two or more different dyes of formula (1) and two or more different dyes, for example of formula (3 a). Even dye mixtures comprising two or more different dyes of formula (1) and two or more different dyes selected from different formulae (3a) to (3i) are part of the present invention.
In all of these mixtures of the invention, preference is given to mixtures in which one dye of the formula (1) and one dye of the formulae (3a) to (3i) are present, i.e.two-component mixtures.
All these dye mixtures may be such that they consist of the abovementioned dyes or may also comprise further dyes not specifically mentioned as shading components.
Is particularly preferred
-one such dye mixture comprising at least one dye of formula (3c),
-one such dye mixture comprising at least one dye of formula (3d),
-one such dye mixture comprising at least one dye of formula (3f), and
-one such dye mixture comprising at least one dye of formula (3 e).
A dye mixture as described above, wherein the dye or dyes of formula (1) is/are selected from the group consisting of:
constitute a preferred aspect of the present invention. It is particularly preferred that the dye mixture contains one of the dyes represented by the formulae (1-1) to (1-10).
Particularly preferred dyes also exist for formulae (3a) to (3 i).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3a) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3a-1) to (3 a-4).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3b) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3b-1) to (3 b-5).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3c) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3c-1) to (3 c-6).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3d) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3d-1) to (3 d-11).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3e) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3e-1) to (3 e-4).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3f) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3f-1) to (3 f-4).
A preferred dye mixture as described above, wherein the dye or dyes of formula (3i) are selected from the group consisting of:
it is particularly preferred that the dye mixture comprises one of the dyes of the formulae (3i-1) to (3 i-2).
Particular preference is given to one of the abovementioned dye mixtures in which the dye or dyes of the formula (1) is/are selected from (1-3), (1-5), (1-6), (1-7), (1-9) or (1-10). Preference is likewise given to dye mixtures comprising one of these dyes.
Another particularly preferred dye mixture as described above is one in which the dye or dyes of the formula (3c) is/are selected from (3c-2), (3c-3) or (3 c-4). Preference is likewise given to dye mixtures comprising one of these dyes.
Most preferred dye mixtures comprise one or more dyes selected from formula (1-3), (1-5), (1-6), (1-7), (1-9) or (1-10) and one or more dyes selected from formula (3c-2), (3c-3) or (3 c-4). Also preferred are mixtures of one selected from the group consisting of formulae (1-3), (1-5), (1-6), (1-7), (1-9) and (1-10) and formulae (3c-2), (3c-3) and (3 c-4).
The components of the dye mixtures according to the invention are also present in the preferred wt.% ranges, and the preferred dye contents are, in% by weight of their total amount of dyes in the mixture:
(1)80～20％
the total amount of (3a/3b/3c/3d/3e/3f/3g/3h/3i) (3a/3b/3c/3d/3e/3f/3g/3h/3i) is 20-80%.
More preferably a dye mixture wherein the dye content is such that in% by weight of the total amount of dyes in the mixture:
(1)60～40％
(3a/3b/3c/3d/3e/3f/3g/3h/3i) the total amount of (3a/3b/3c/3d/3e/3f/3g/3h/3i) is 40-60%.
In each dye mixture, the components (1) to (3i) add up to 100% in the case of dye mixtures consisting of the abovementioned dyes or less than 100% in the case of addition of further dyes, for example as shading component. In this case, the shading component content is preferably less than 10 wt%, more preferably less than 5 wt%, most preferably less than 2 wt%, based on the weight of all dyes in the dye mixture.
A process for producing the above dye mixture comprises
a) Mixing at least one dye of formula (1) with at least one dye of any one of formulae (3a) to (3i), and
b) homogenizing the mixture obtained in step a)
Form a further aspect of the invention.
When dyeing with the dye mixtures according to the invention, the dye mixtures are dispersed in the usual manner in an aqueous medium by means of dispersants and wetting agents to prepare printing pastes for dyebaths or textile printing.
Accordingly, an aqueous solution for dyeing comprising the above dye mixture also constitutes an aspect of the present invention. And the use of the above-mentioned dye mixtures and/or the above-mentioned aqueous solutions for dyeing fibers and blends of these fibers, which fibers are selected from: synthetic fibers: nylon, nylon-6, nylon-6.6, and aramid fibers; plant fiber: seed fiber, cotton, organic cotton, kapok, coir from coconut shells, bast fiber, flax, hemp, jute, kenaf, ramie, rattan, leaf fiber, sisal, agave, banana, stem fiber, bamboo; fibers from animals: wool, organic wool, silk, cashmere wool, alpaca fiber, mohair, angora fiber, and fur and leather materials; man-made, regenerated and recycled fibers: cellulose fibres, paper fibres, cellulose regenerated fibres, viscose rayon fibres, acetate and triacetate fibres and lyocell fibres.
Typical examples of dispersants are lignosulphonates, naphthalenesulphonic acid/formaldehyde condensates and phenol/cresol/p-aminobenzenesulphonic acid/formaldehyde condensates, typical examples of wetting agents are alkylaryl ethoxylates which may be sulphonated or phosphated, and typical examples of other ingredients which may be present are inorganic salts, dedusting agents such as mineral oil or nonanols, organic liquids and buffers. The amount of the dispersant can be 30-500% of the weight of the dye mixture. The amount of the dedusting agent can be 0-5% of the weight of the dye mixture.
For example, in the case of dyeing polyester fibers and fiber mixture products such as blended yarn fabrics of cotton warp and weft regenerated pile fabrics (unity weft products) containing polyester fibers, good color fastness can be obtained by dyeing by ordinary dyeing methods such as high-temperature dyeing, carrier dyeing and thermosol dyeing. In some cases, the addition of acidic substances to the dye bath may make the dyeing even more successful.
Suitable process conditions may be the following:
(i) dip dyeing: dip-dyeing at the pH of 4-8.5 and the temperature of 125-140 ℃ for 10-120 min, and adding a chelating agent under the pressure of 1-2 bar as required;
(ii) and (3) continuous dyeing: continuously dyeing for 15sec to 5min at the pH of 4 to 8.5 and the temperature of 190 to 225 ℃, and adding a migration inhibitor according to needs;
(iii) and (3) direct printing: steaming at the high temperature of 160-185 ℃ for 4-15 min at the pH of 4-6.5, or performing dry heat baking fixation for 15 sec-5 min at the temperature of 190-225 ℃, or performing pressure steaming at the temperature of 120-140 ℃ for 10-45 min at the pressure of 1-2 bar, and optionally adding a wetting agent and a thickening agent (such as alginate) which account for 5-100% of the weight of the dye;
(iv) discharge printing: discharge printing (padding a dye on a textile material, drying and overprinting) at the pH of 4-6.5, and adding a migration inhibitor and a thickening agent as required;
(v) and (3) dyeing the carrier: carrying out carrier dyeing by using a dyeing carrier such as methylnaphthalene, diphenylamine or 2-phenylphenol at the pH of 4-7.5 and the temperature of 95-100 ℃, and optionally adding a chelating agent; and
(vi) dyeing under normal pressure: and dyeing the acetate fiber, the triacetate fiber and the nylon at the pH of 4-7.5 under normal pressure for 15-90 min, wherein the dyeing temperature of the acetate fiber is about 85 ℃, the dyeing temperature of the triacetate fiber and the nylon is about 90 ℃, and a chelating agent can be added if necessary.
In all the above processes, the dye mixture is applied in the form of a dispersion comprising 0.001 to 20 wt.%, preferably 0.005 to 16 wt.%, in an aqueous medium, of the dye mixture according to the invention.
In addition to the application processes described above, the dye mixtures can also be applied to synthetic textile materials and fiber blend fabrics by ink-jet printing, the substrate (substrate) being optionally pretreated to assist printing.
Another aspect of the present invention is an ink for digital textile printing comprising the above dye mixture.
In inkjet applications, the application medium may comprise water and a water-soluble organic solvent, preferably in a mass ratio of 1:99 to 99:1, more preferably 1:95 to 50:50, especially 10:90 to 40: 60. Preferably, the water-soluble organic solvent may be C1-C4-alkanols, in particular methanol or ethanol; a ketone, in particular acetone or methyl ethyl ketone, 2-pyrrolidone or N-methylpyrrolidone; a diol, especially ethylene glycol, propylene glycol, trimethylene glycol, butane-2, 3-diol, thiodiglycol or diethylene glycol; a glycol ether, in particular ethylene glycol monomethyl ether, propylene glycol monomethyl ether or diethylene glycol monomethyl ether; urea; a sulfone, especially bis- (2-hydroxyethyl) sulfone; or mixtures thereof.
The dyes can also be applied to textile materials using supercritical carbon dioxide, in which case the dye formulation can optionally be omitted.
Preferably, the synthetic textile material is selected from aromatic polyesters, in particular from polyethylene terephthalate, polyamides, in particular polyhexamethylene adipamide, cellulose diacetate, cellulose triacetate; natural textile materials, in particular selected from cellulosic materials and wool. Particularly preferably, the textile material is an aromatic polyester or a fiber blend thereof with any of the above textile materials. Particularly preferred fiber blend fabrics include polyester-cellulosic fiber blend fabrics, such as polyester-cotton and polyester-wool. The textile material or its blend may be in the form of filaments, loose fibres, yarns or woven or knitted fabrics.
In particular, among polyester fibers, not only ordinary polyester fibers (conventional denier fibers) but also microfibers (fine denier fibers, which are less than 0.6 denier) can be successfully dyed with the dye mixture of the present invention.
In general, all kinds of fibres can be dyed, so that fibres and blend fibres containing such fibres, which are selected from the following group, comprise the above-mentioned dye mixtures chemically and/or physically bound: synthetic fiber material: nylon-6, nylon-6.6, and aramid fibers; plant fiber: seed fibers, cotton, organic cotton, kapok, coir from coconut shells, bast fibers, flax, hemp, jute, kenaf, ramie, rattan, leaf fibers, sisal, agave, bananas, straw fibers, bamboo; fibers from animals: wool, organic wool, silk, cashmere wool, alpaca fiber, mohair, angora fiber, and fur and leather materials; man-made, regenerated and recycled fibers: cellulosic fibres, paper fibres, cellulose regenerated fibres, viscose rayon fibres, acetate and triacetate fibres and lyocell fibres form a further aspect of the invention.
(IV) detailed description of the preferred embodiments
The following examples serve to illustrate the invention. Parts and percentages are by weight unless otherwise indicated. Parts by weight relate to parts by volume in kilograms to liters.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：用于将电工钢带电绝缘的无铬无磷酸盐涂层