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Dyeing method of disperse dyestuff with special methylsiloxane as medium

A technology of methyl siloxane and disperse dyes, applied in dyeing, textile and papermaking, etc., can solve the problems of high printing and dyeing wastewater, toxicity and safety, large amount of disperse dyes, etc., to reduce wastewater discharge and achieve good stability. , the effect of good affinity

Inactive Publication Date: 2013-05-01
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of this method are: there are few kinds of dyes with sublimation performance, and only disperse dyes are available at present; The practical application of the
Because solvent dyeing is difficult to balance and control the distribution coefficient of dyes on the fiber and in the solvent, the requirements for dyes are relatively high, and the toxicity of the solvent itself reduces the safety of the production process, resulting in new ecological and environmental problems. be further developed
[0006] It can be seen that the above methods have certain limitations in application. The amount of disperse dyes used in polyester fiber dyeing is very large, so the printing and dyeing wastewater is also very high.

Method used

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  • Dyeing method of disperse dyestuff with special methylsiloxane as medium
  • Dyeing method of disperse dyestuff with special methylsiloxane as medium
  • Dyeing method of disperse dyestuff with special methylsiloxane as medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The dyeing method of disperse dyes with special methyl siloxane as medium, the method is as follows:

[0032] (1) Scouring treatment of polyester fabric:

[0033] The polyester fabric is subjected to scouring treatment, and the treatment conditions are: fabric weight 500g; detergent 2g / L; alkali 2g / L, liquor ratio 1:30; temperature 90°C, time 40min.

[0034] (2) Add a certain amount of pure disperse dyes to siloxane according to the dyeing requirements, keep warm at 60°C for 20 minutes, add the fabric to be dyed and a certain amount of water, and dye in the jigger. The dyeing process conditions are as follows:

[0035] Dye at room temperature first, heat up to 90°C within 30 minutes, heat up to 130°C at a rate of 1°C / min and keep warm for 60 minutes, then cool down to 60°C at a rate of 1.5°C / min for drying, remove floating color, and finally wash with water ,drying.

[0036] Dyeing recipe:

[0037] Disperse dyes (C.I. Disperse Blue 183): 0.7%(o.w.f);

[0038] Fa...

Embodiment 2

[0048] (1) Scouring treatment of polyester fabric:

[0049] The polyester fabric is subjected to scouring treatment, and the treatment conditions are: fabric weight 500g; detergent 2g / L; alkali 2g / L, liquor ratio 1:30; temperature 90°C, time 40min.

[0050](2) According to the dyeing requirements, take a certain amount of pure disperse dyes and add them to siloxane, keep them warm at 60°C for 20 minutes, add the fabric to be dyed and a certain amount of water, and carry out dyeing in an overflow dyeing machine. The dyeing process conditions are as follows :

[0051] Dye at room temperature first, heat up to 90°C within 30 minutes, heat up to 130°C at a rate of 1°C / min and keep warm for 60 minutes, then cool down to 60°C at a rate of 1.5°C / min for drying, remove floating color, and finally wash with water ,drying.

[0052] Dyeing recipe:

[0053] Disperse dyes (C.I. Disperse Orange 29): 0.7% (o.w.f);

[0054] Fabric weight: 500g;

[0055] Bath ratio: 1:10;

[0056] The vo...

Embodiment 3

[0064] (1) Scouring treatment of polyester fabric:

[0065] The polyester fabric is subjected to scouring treatment, and the treatment conditions are: fabric weight 500g; detergent 2g / L; alkali 2g / L, liquor ratio 1:30; temperature 90°C, time 40min.

[0066] (2) According to the dyeing requirements, take a certain amount of pure disperse dyes and add them to siloxane, keep them warm at 60°C for 20 minutes, add the fabric to be dyed and a certain amount of water, and carry out dyeing in a jet dyeing machine. The dyeing process conditions are as follows:

[0067] Dye at room temperature first, heat up to 90°C within 30 minutes, heat up to 130°C at a rate of 1°C / min and keep warm for 60 minutes, then cool down to 60°C at a rate of 1.5°C / min for drying, remove floating color, and finally wash with water ,drying.

[0068] Dyeing recipe:

[0069] Disperse dyes (C.I. Disperse Orange 79 # :1): 0.7% (o.w.f);

[0070] Fabric weight: 500g;

[0071] Bath ratio: 1:10;

[0072] The vol...

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Abstract

The invention relates to a waterless dyeing method of a disperse dyestuff for a textile and discloses a dyeing method of a disperse dyestuff with special methylsiloxane as a medium. The method comprises the following steps: (1) refining a terylene fabric; (2) adding a pure disperse dyestuff into a dyeing medium according to dyeing requirements, controlling the usage amount of the dyeing medium to allow a ratio (a bath ratio) of the weight of a to-be-dyed fabric to the total amount of the medium to be 1:5-20, carrying out insulation at a temperature of 60 DEG C for 20 min under stirring, adding the to-be-dyed fabric and a certain amount of water and carrying out dyeing in a dyeing machine; and (3) removing the unfixed dye on the surface of the fabric after dyeing: a step of drying the dyed fabric and carrying out reduction and cleaning according to a method prescribed in GB2394-80. According to the invention, the pure disperse dyestuff is used for dyeing of terylene; a good dyeing effect is obtained, cost is saved, and dyeing procedures and discharge of waste water are reduced.

Description

technical field [0001] The invention relates to a method for anhydrous dyeing of textiles with disperse dyes, in particular to a method for dyeing disperse dyes with special methyl siloxane as a medium. Background technique [0002] Since polyester fiber is a hydrophobic fiber with a tight structure, the conventional dyeing of polyester fiber by disperse dyes at home and abroad is still the dyeing of water-based media under the action of additives, that is, the dye is stabilized by means of additives (surfactants, etc.). Dispersed in water, all the auxiliaries will enter the water after dyeing, causing great pollution of waste water. The COD of 1% commercial disperse dye aqueous solution is (6000~13000) mg / L, and the BOD is (100~1000) mg / L. In addition, in the actual dyeing process, it is necessary to add a sufficient amount of auxiliaries. Therefore, the final auxiliary amount used for dyeing is much larger than the above figures. The pollution caused by the auxiliary ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/92D06P3/54
Inventor 刘今强李深正李永强李立名缪华丽
Owner ZHEJIANG SCI-TECH UNIV
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