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Polybasic carboxylic acid non-ironing process washing-free method adopting urea as additive

A polycarboxylic acid and additive technology, used in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems of low pH value of fabrics, and achieve the effects of improved wrinkle recovery angle, improved fabric strength, and simple operation.

Active Publication Date: 2015-02-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pH value of the fabric surface after saturated polycarboxylic acid finishing is too low, about 3

Method used

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  • Polybasic carboxylic acid non-ironing process washing-free method adopting urea as additive
  • Polybasic carboxylic acid non-ironing process washing-free method adopting urea as additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare finishing solution, add 7% formaldehyde-free finishing agent BTCA, 1.6% catalyst SHP, 3% urea and 3% amino silicone oil, 3% strong protective agent HD-208, 0.5% penetrating agent HD-2 into the finishing solution. The fabric was dipped twice and rolled twice, the excess rate was 90%, dried at 100°C for 2 minutes, baked at 160°C for 3 minutes, and the pH of the tested cloth surface was 4.957. The crease recovery angle and tear strength retention rate of the fabric are shown in Table 1.

Embodiment 2

[0024] Prepare finishing solution, add 7% formaldehyde-free finishing agent BTCA, 1.6% catalyst SHP, 0.7% urea and 3% amino silicone oil, 3% strong protective agent HD-208, 0.5% penetrating agent HD-2 into the finishing solution. The fabric was dipped twice and rolled twice, the excess rate was 90%, dried at 100°C for 2 minutes, baked at 160°C for 3 minutes, and the pH of the tested cloth surface was 4.195. The crease recovery angle and tear strength retention rate of the fabric are shown in Table 1.

Embodiment 3

[0026] Prepare finishing solution, add 7% formaldehyde-free finishing agent BTCA, 1.6% catalyst SHP, 5% urea and 3% amino silicone oil, 3% strong protective agent HD-208, 0.5% penetrating agent HD-2 into the finishing solution. The fabric was dipped twice and rolled twice, the excess rate was 90%, dried at 100°C for 2 minutes, baked at 160°C for 3 minutes, and the pH of the tested cloth surface was 5.080. The crease recovery angle and tear strength retention rate of the fabric are shown in Table 1.

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Abstract

The invention relates to a polybasic carboxylic acid non-ironing process washing-free method adopting urea as an additive. The method comprises the steps as follows: a finishing solution is prepared and contains components in percentage by weight as follows: 1%-10% of a polybasic carboxylic acid formaldehyde-free non-ironing finishing agent, 1%-4.6% of a catalyst sodium hypophosphite and 0.7%-5% of urea; and a fabric is soaked twice and rolled twice in the finishing solution, the solution retention rate is in a range of 80%-110%, and then the fabric is dried at the temperature of 80-100 DEG C for 2-10 min and baked at the temperature of 150-180 DEG C for 1-5 min finally. The method is simple to operate, the washing procedure after the cotton fabric is finished by polybasic carboxylic acid is omitted, the enterprise cost can be saved, and industrial production is easy to perform; and by means of the obtained non-ironing product, the wrinkle recovery angle and the tearing strength retention rate of the fabric are improved compared with a common formaldehyde-free non-ironing product, further, the pH value of the finished cloth surface is increased to be higher than 4.0, requirements of GB 18401-2010 are met.

Description

technical field [0001] The invention belongs to the field of formaldehyde-free non-ironing finishing of cotton fabrics, and relates to a non-washing method of polycarboxylic acid non-ironing process using urea as an additive. Background technique [0002] Cotton fiber has excellent wearability and is one of the most widely used natural fibers in clothing fabrics. However, the cotton fiber fabric has poor elasticity, is easy to wrinkle after washing, and is time-consuming to iron, so it is difficult to meet people's needs for beautiful, comfortable and easy-care clothes. In order to overcome the shortcomings of cotton fabrics that are easy to wrinkle, researchers have carried out research on the non-ironing finishing technology of cotton fabrics, and have made great progress. [0003] Traditional non-iron finishing agents are N-methylolamide compounds represented by 2D resins, but formaldehyde gas harmful to human body will be released during the finishing, storage, transpor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/192D06M13/207D06M11/70D06M13/432D06M15/643D06M101/06
Inventor 阎克路纪柏林汪津胡婷莉潘俊兵
Owner DONGHUA UNIV