Method for improving color fastness of polyester cotton

A color fastness, polyester-cotton technology, applied in the direction of dyeing, textiles and papermaking, can solve the problems of large fabric wear and increase cost, improve production efficiency, improve washing fastness and color fastness, omit reduction cleaning effect

Pending Publication Date: 2021-11-02
JIHUA 3543 KNITTING CLOTHING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above process requires alkaline reduction, using multiple soaping processes, which not only wears out the fabric, but also increases the cost

Method used

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  • Method for improving color fastness of polyester cotton
  • Method for improving color fastness of polyester cotton
  • Method for improving color fastness of polyester cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Take dyed 32S / 100D navy blue blow cloth as an example:

[0022] Dyeing process: high-temperature dyeing machine 130 ℃ fixed washing, soaping color fastness test after the cloth is out, using new additives, soaping color fastness test after the cloth is set, compared with the former, see the finalized Effect.

[0023]

[0024]

[0025] S1. Use the commonly used dyeing machine for knitted fabrics (ECO-8-D1T Fong’s Dyeing and Finishing Machinery Co., Ltd.) to dye in water at a liquor ratio of 1:10, and accelerate the high-temperature leveling agent and acetic acid into the dyeing machine at a constant speed;

[0026] S2. Load the cloth, adjust the cloth speed to about 200m / min, and adjust the pump pressure to make the spray volume of the nozzle 80% of the maximum;

[0027] S3. Dyeing and washing: raise the temperature of the dyeing machine by 40°C, add the disperse dyes into the slurry into the dyeing machine through the chemical tank, raise the temperature to 80°C ...

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Abstract

The invention discloses a method for improving color fastness of polyester cotton. The method comprises the following steps of polyester dyeing, acid reduction, cotton dyeing, soaping, vat discharging, dewatering, scutching and setting. A novel polyester soaping agent is adopted to replace a traditional polyester cotton two-bath soaping method, so that reduction cleaning is omitted, soaping after cotton dyeing is only needed, water and energy are saved, and environment friendliness is achieved; disperse dye floating color attached to polyester and cotton fibers can be efficiently removed by using the novel soaping agent for soaping after cotton dyeing, so that various fastness such as soaping fastness and friction fastness can be improved; and the novel soaping agent can tolerate an anhydrous sodium sulphate aqueous solution and a sodium carbonate aqueous solution with relatively high concentrations, has good chelating property on metal ions, does not belong to dangerous goods, does not have potential safety hazards such as flammable and explosive properties, does not contain prohibited substances such as APEO, is environment-friendly, greatly improves the production efficiency, and realizes energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a method for improving the color fastness of polyester and cotton. Background technique [0002] Existing process: dyeing→acid reduction→out of vat→dehydration→opening→fixed washing→into vat→alkaline reduction→dyeing cotton→soaping 1→soaping 2→soaping 3→out of vat→dehydration→opening → stereotypes; [0003] The above-mentioned process requires alkaline reduction, and multiple soaping processes are used, which not only wears out the fabric greatly, but also increases the cost. Contents of the invention [0004] In order to overcome the above defects, the present invention provides a method for improving the color fastness of polyester and cotton. [0005] In order to achieve the above object, the method for improving the color fastness of polyester and cotton of the present invention includes the following steps: dyeing → acid reduction → dyeing cotton → soaping → out of the vat → dehydration → opening → shaping; the specifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/38D06P1/00D06P1/673D06P1/653D06P3/872D06P5/02
CPCD06P1/16D06P1/38D06P1/0032D06P1/6735D06P1/6533D06P3/8252D06P5/02
Inventor 朱后成高爱林初晓杰
Owner JIHUA 3543 KNITTING CLOTHING
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