Dyeing low-temperature post-treatment auxiliary of pure polyester fabric and polyester-containing fabrics and post-treatment technology thereof

A polyester fabric, post-processing technology, applied in the field of dyeing and finishing, to achieve the effect of reducing chromaticity value, improving fastness, and excellent synergy

Active Publication Date: 2019-01-25
湖南中翔化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polyester or fabric containing disperse dyes, which usually needs to remove floating colors under high temperature conditions after dyeing, and the floating colors in the washing liquid need to be decolorized. Auxiliary prescription and post-treatment method for low-temperature post-treatment of disperse dyeing of polyester fabrics while decolorizing floating dyes, realizing post-dyeing processing of polyester or polyester-containing fabrics, especially high dyeing fastness and floating color of polyester or polyester-containing fabrics bleaching

Method used

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  • Dyeing low-temperature post-treatment auxiliary of pure polyester fabric and polyester-containing fabrics and post-treatment technology thereof
  • Dyeing low-temperature post-treatment auxiliary of pure polyester fabric and polyester-containing fabrics and post-treatment technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this example, the composition of the low-temperature post-treatment auxiliary agent for pure polyester and polyester-containing fabrics after dyeing is as follows: 400g / kg diabolite powder, 200g / kg biological enzyme, and 400g / kg Gemini cationic surfactant.

[0019] The dyeing post-treatment process of pure polyester and polyester-containing fabrics in this embodiment is as follows: the dyed polyester or polyester-containing fabrics are put into the above-mentioned compounded post-treatment auxiliary solution, the post-treatment auxiliary is 5g / L, and the liquor ratio is 1:10,30 The temperature was raised to 60 °C at a rate of 1 °C / min, and then kept at a temperature of 20 min. After the post-treatment, the fabric was taken out, washed, and dried.

Embodiment 2

[0021] In this embodiment, the composition of the low-temperature post-treatment auxiliary agent for pure polyester and polyester-containing fabrics after dyeing is as follows: 300g / kg Diabaite powder, 400g / kg biological enzyme, and 300g / kg Gemini cationic surfactant.

[0022] The post-dyeing process of pure polyester and polyester-containing fabrics in this example is as follows: the dyed polyester or polyester-containing fabrics are put into the above-mentioned compounded post-treatment auxiliary solution, the post-treatment auxiliary is 2g / L, and the liquor ratio is 1:4,30 The temperature was raised to 40°C at a rate of 0.8°C / min, and then kept at a temperature of 5 minutes. After the post-treatment, the fabric was taken out, washed, and dried.

Embodiment 3

[0024] In this example, the composition of the low-temperature post-treatment auxiliary agent for pure polyester and polyester-containing fabrics after dyeing is as follows: 600g / kg diabolite powder, 200g / kg biological enzyme, and 200g / kg Gemini cationic surfactant.

[0025] The dyeing post-treatment process of pure polyester and polyester-containing fabrics in this embodiment is as follows: the dyed polyester or polyester-containing fabrics are put into the above-mentioned compounded post-processing auxiliary solution, the post-processing auxiliary is 10g / L, and the liquor ratio is 1:30,30 The temperature was raised to 50°C at a rate of 0.4°C / min, and then kept at a temperature of 15 minutes. After the post-treatment, the fabric was taken out, fully washed, and dried.

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Abstract

The invention discloses a dyeing low-temperature post-treatment auxiliary of a pure polyester fabric and polyester-containing fabrics and a post-treatment technology thereof. The post-treatment auxiliary is prepared from the following components: 300-600 g/kg of rongalite, 50-400 g/kg of biological enzyme and 100-500 g/kg of Gemini cationic surface active agent. By compounding the dyeing post-treatment auxiliary of the polyester fabric or the polyester-containing fabric, then using the post-treatment auxiliary for conducting dyeing low-temperature post-treatment on the polyester fabric or thepolyester-containing fabric, and using a synergistic effect mechanism among the three components, low-temperature post-treatment processing is conducted on of the polyester fabric or the polyester-containing fabric is realized, the defect that traditionally, the polyester fabric or the polyester-containing fabric needs to be subjected to post-treatment under a high temperature condition is overcome, dye which is washed into a solution does not stain the fabrics any more, moreover, post-treatment printing and dyeing wastewater is colorless, which is beneficial for wastewater treatment, and thefabrics subjected to post-treatment have soft hand feelings, and are excellent in fastness.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a low-temperature post-treatment auxiliary after dyeing pure polyester and polyester-containing fabrics and a post-treatment process thereof. Background technique [0002] Polyester is the synthetic fiber with the largest output. It is not easy to wrinkle, has high strength and good quick-drying properties. It is the first choice for sports fabrics. Polyester and polyester-containing fabrics (polyester cotton, polyester nylon, polyester viscose, wool polyester, etc.) big portion. Polyester fibers are currently mainly dyed with disperse dyes. After dyeing, reduction cleaning is generally required to remove unfixed disperse dyes on the fabric. Currently, reduction cleaning generally uses alkaline agents and hydrosulfite for washing at a temperature above 80°C. However, there are safety problems in storage and transportation of sodium hydrosulfite, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P5/10D06P3/52D06P1/16
CPCD06P1/16D06P3/52D06P5/08D06P5/10
Inventor 戴志坚宋伟明颜建勋易辉
Owner 湖南中翔化学科技有限公司
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