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Disperse reactive dye one-bath two-step dip dyeing method for polyester cotton fabric

A technology of disperse activity and dyeing method, applied in the field of one-bath and two-step dip dyeing and dyeing of disperse reactive dyes, can solve the problems of no use value, affect the hand feeling of the fabric, uneven coloring, etc., and achieve excellent slow-release function and good leveling dyeing. effect of effect

Active Publication Date: 2016-12-14
ANHUI YAYUAN PRINTING & DYEING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The printing and dyeing industry has always adopted the two-bath two-step dyeing method of disperse / reactive dyes for dyeing polyester-cotton blended or interwoven fabrics, that is, dyeing polyester with disperse dyes-reduction cleaning-reactive dyes for over-dyeing cotton. The entire dyeing process takes more than 10 Hours, low production efficiency, large water, electricity, steam consumption, large sewage discharge, and due to the long wet processing time, it is easy to make the cloth surface fuzzy and affect the fabric feel, which reduces product quality and economic benefits of the enterprise
[0003] The existing disperse / reactive dye one-bath dyeing method replaces the disperse / reactive dye two-bath two-step dyeing method. Although the problems of the two-bath dyeing method can be avoided to a certain extent, there are still many problems in the disperse / reactive dye one-bath dyeing method. Problems, such as the limitations of reactive dyes and disperse dyes used are very large, both reactive dyes and disperse dyes require certain specific dyeing performance requirements, do not have a wide range of use values, and usually cause dye hydrolysis and uneven coloring , resulting in defects such as color flower, color difference, low color fixation rate, etc.

Method used

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  • Disperse reactive dye one-bath two-step dip dyeing method for polyester cotton fabric
  • Disperse reactive dye one-bath two-step dip dyeing method for polyester cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the present embodiment, a kind of disperse reactive dye one-bath two-step exhaust dyeing method of polyester-cotton fabric comprises the following steps:

[0020] S1, pretreatment, according to the bath ratio of 1:5, pad the polyester-cotton fabric to be dyed with a finishing solution, the finishing solution includes: β-cyclodextrin 10g / L, 1,2,3,4-butane tetracarboxylic acid 5g / L, sodium hypophosphite 2g / L, two dipping and two rolling, the padding temperature is 30°C, the excess rate is 110%, pre-baking at 60°C for 6min, baking at 120°C for 5min, after washing in cold water, 50°C down drying;

[0021] S2, dyeing and washing, the polyester-cotton fabric after S1 treatment is immersed in the disperse dyeing solution, and described disperse dyeing solution comprises: disperse dye 5% (owf), glacial acetic acid 2g / L, sodium acetate 2g / L, Adjust the bath ratio to 1:5, enter the dyeing at 40°C, raise the temperature to 75°C at a rate of 2°C / min, hold for 5 minutes, then ra...

Embodiment 2

[0025] In the present embodiment, a kind of disperse reactive dye one-bath two-step exhaust dyeing method of polyester-cotton fabric comprises the following steps:

[0026] S1, pretreatment, according to the bath ratio 1:15, the polyester-cotton fabric to be dyed will be padded with the finishing liquid, and the finishing liquid includes: β-cyclodextrin 5g / L, citric acid 15g / L, sodium hypophosphite 0.5g / L L, two dipping and two rolling, the padding temperature is 40°C, the excess rolling rate is 80%, pre-bake at 80°C for 3 minutes, bake at 140°C for 1 minute, wash in cold water, and dry at 60°C;

[0027] S2, dyeing and washing, immerse the polyester-cotton fabric after S1 treatment in the disperse dyeing solution, and the disperse dyeing solution comprises: disperse dye 1% (owf), glacial acetic acid 4g / L, sodium acetate 1g / L, Adjust the bath ratio to 1:25, enter the dyeing at 30°C, raise the temperature to 65°C at a rate of 2.5°C / min, hold for 10 minutes, then raise the temper...

Embodiment 3

[0031] In the present embodiment, a kind of disperse reactive dye one-bath two-step exhaust dyeing method of polyester-cotton fabric comprises the following steps:

[0032] S1, pretreatment, according to bath ratio 1:10, padding finishing solution of polyester-cotton fabric to be dyed, described finishing solution comprises: β-cyclodextrin 7g / L, 1,2,3,4-butane tetracarboxylic acid 8g / L, sodium hypophosphite 1g / L, two dipping and two rolling, the padding temperature is 35°C, the excess rate is 95%, pre-baked at 70°C for 4 minutes, baked at 130°C for 3 minutes, washed in cold water, 55°C down drying;

[0033] S2, dyeing and washing, immersing the polyester-cotton fabric after S1 treatment in the disperse dye solution, the disperse dye solution comprising: disperse dye 3% (owf), glacial acetic acid 3g / L, sodium acetate 1.5g / L , adjust the bath ratio to 1:15, enter dyeing at 35°C, heat up to 70°C at a rate of 2.2°C / min, hold for 7 minutes, then raise the temperature to 120°C at a...

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Abstract

The invention discloses a disperse reactive dye one-bath two-step dip dyeing method for polyester cotton fabric. The method comprises the following steps: S1, pretreatment: padding a polyester cotton fabric to be dyed in a finishing liquid, conducting two dipping and two rolling, pre-drying at 60-80 DEG C, baking at 120-140 DEG C, washing with cold water and drying; S2, polyester dyeing: immersing the polyester in a disperse dye, insulating at 65-75 C, and insulating at 110-130 DEG C; S3, cotton dyeing: adding a quaternary ammonium salt cationic etherifying agent, stirring for reaction, adding a reactive dye, insulating at 70-80 DEG C, adding a dyeing auxiliary, insulating, adding soda ash, and insulating at 60-100 DEG C; and S4, posttreatment: conducting an initial washing, soaping and post washing. The disperse reactive dye one-bath two-step dip dyeing method for polyester cotton fabric has the advantages of simple process, easy industrial implementation, wide dye application, uniform coloration, high fixation rate and good levelness.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a one-bath two-step exhaust dyeing method of disperse reactive dyes for polyester-cotton fabrics. Background technique [0002] The printing and dyeing industry has always adopted the two-bath two-step dyeing method of disperse / reactive dyes for dyeing polyester-cotton blended or interwoven fabrics, that is, dyeing polyester with disperse dyes-reduction cleaning-reactive dyes for over-dyeing cotton. The entire dyeing process takes more than 10 hours, the production efficiency is low, the water, electricity, steam consumption is large, the sewage discharge is large, and because the wet processing time is long, it is easy to make the cloth surface fluffy and affect the fabric feel, so that the product quality and the economic benefits of the enterprise are reduced. [0003] The existing disperse / reactive dye one-bath dyeing method replaces the disperse / reactive dye two-bath two-step...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/48D06P1/653D06P1/673D06P1/16D06P1/38D06P1/66D06P3/872
CPCD06P1/0032D06P1/16D06P1/38D06P1/445D06P1/48D06P1/6533D06P1/66D06P1/6735D06P3/004D06P3/008D06P3/8252
Inventor 潘学东
Owner ANHUI YAYUAN PRINTING & DYEING CO LTD
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