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Method for performing crease-resistant finishing on cotton fabrics

An anti-wrinkle finishing and fabric technology, applied in the field of dyeing and finishing, can solve the problems of high cost, unsuitable for large-scale application, affecting wearing performance, easy yellowing of fabrics, etc., achieves good anti-wrinkle and anti-deformation effects, improves strength and wear resistance loss Large, guaranteed anti-wrinkle effect

Active Publication Date: 2017-08-11
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the polycarboxylic acid compounds used for anti-wrinkle finishing include 1,2,3,4-butanetetracarboxylic acid, citric acid, maleic acid, itaconic acid, polymaleic acid, etc., among which the most promising application development The most popular are 1,2,3,4-butane tetracarboxylic acid and citric acid, but the high cost of 1,2,3,4-butane tetracarboxylic acid is not suitable for large-scale application, and the fabric treated with citric acid is easy to pan yellow
As a polycarboxylic acid, malic acid has anti-wrinkle effect on treated fabrics, is not easy to yellow, has no formaldehyde release, and is cheap, but its strength loss is large, which seriously affects its wearing performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] It is known that the original breaking strength of pure cotton cloth is 895N and the wrinkle recovery angle is 89°.

[0021] Put the pure cotton cloth after scouring and bleaching into 2.0 wt% malic acid, 5.0 wt% sodium hypophosphite, 0.2 wt% triethanolamine stearate quaternary ammonium salt softener, 0.08 wt% penetrant JFC and the rest Immerse in a mixed solution of water, two dipping and two rolling to control the excess rate of 90%, drying at 100°C for 2 minutes, then baking at 180°C for 2 minutes, and finally soaping and drying. According to national standards GB / T 3923.2-2013 and GB / T 3819, the measured strength retention rate of cotton fabric is 55.0% and the wrinkle recovery angle is 176°.

Embodiment 2

[0023] It is known that the original breaking strength of pure cotton cloth is 895N and the wrinkle recovery angle is 89°.

[0024] Put the pure cotton cloth after scouring and bleaching into 10.0 wt% malic acid, 5.0 wt% sodium hypophosphite, 0.2 wt% triethanolamine stearate quaternary ammonium salt softener, 0.08 wt% penetrant JFC and the rest of the water Dipping in the mixed solution, two dipping and two rolling to control the excess rate of 90%, drying at 100°C for 2 minutes, then baking at 180°C for 2 minutes, and finally soaping and drying. According to the national standards GB / T 3923.2-2013 and GB / T 3819, the measured strength retention rate of cotton fabric is 61.6% and the wrinkle recovery angle is 204°.

Embodiment 3

[0026] It is known that the original breaking strength of pure cotton cloth is 895N and the wrinkle recovery angle is 89°.

[0027] Put the pure cotton cloth after scouring and bleaching into 8.0 wt% malic acid, 2.0 wt% sodium hypophosphite, 0.2 wt% triethanolamine stearate quaternary ammonium salt softener, 0.08 wt% penetrant JFC and the rest of the water Dipping in the mixed solution, two dipping and two rolling to control the excess rate of 90%, drying at 100°C for 2 minutes, then baking at 180°C for 2 minutes, and finally soaping and drying. According to the national standards GB / T 3923.2-2013 and GB / T 3819, the measured strength retention rate of cotton fabric is 68.0% and the wrinkle recovery angle is 164°.

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Abstract

The invention relates to a method for performing crease-resistant finishing on cotton fabrics. The method comprises the following steps: 1) putting bleached pure cotton cloth into a mixed solution of malic acid, sodium hypophosphite, stearic acid triethanolamine ester quaternary softening agent and penetrating agent JFC, steeping, rolling and steeping for two times, wherein the residual rate is controlled to be 90-100% and 2) drying, baking, soaping and then drying. The method has the advantages that malic acid is used as a crease-resistant finishing agent, and meanwhile, sodium hypophosphite with a catalytic effect, the nontoxic softening agent and the penetrating agent are added for performing the crease-resistant finishing on the cotton fabrics, so that the crease-resistant effect is guaranteed, the traditional problems of strong crease-resistant finishing capacity and larger abrasive resistance loss are solved and the fabrics are free from yellowing phenomenon; a crease-resistant finishing agent which is prepared at reasonable ratio of malic acid to catalyst to softening agent to penetrating agent is green and environment-friendly, cannot release toxic harmful materials, such as, formaldehyde, and is safe; the production cost is reduced; the method has certain popularization and application values in production.

Description

technical field [0001] The invention relates to a method for wrinkle-resistant finishing of cotton fabrics, belonging to the technical field of dyeing and finishing. Background technique [0002] Pure cotton fabrics have the advantages of being comfortable to wear, breathable and moisture-absorbing, and soft to the touch. However, cotton fabrics have defects such as poor elasticity, easy deformation, easy wrinkling, and need to be ironed after washing. cannot maintain a flat appearance. Therefore, in order to improve the appearance of cotton fabrics during wearing, maintain their shape stability, and improve their wearability, it is very necessary to perform anti-wrinkle finishing on pure cotton fabrics. [0003] At present, the anti-wrinkle finishing agents commonly used in the anti-wrinkle finishing are still mainly urea-formaldehyde derivative resin finishing agents, that is, the structure contains N-methylol derivative structure, such as 2D or modified 2D resin. The fa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M13/207D06M11/70D06M13/463D06M101/06
CPCD06M11/70D06M13/207D06M13/463D06M2101/06D06M2200/20
Inventor 黄钢贾永堂梁迎春
Owner WUYI UNIV
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