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Method for improving water and moisture absorbability of polyester fabric by using gamma-polyglutamic acid hydrogel

A technology of polyglutamic acid and polyester fabrics, which is applied in the direction of textiles, papermaking, fiber treatment, etc., can solve the problems of static electricity, severe, and affecting the wearing comfort of polyester fabrics, and achieve the effect of improving water absorption and hygroscopicity

Inactive Publication Date: 2012-09-19
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of polyester fiber is excellent, it still has serious shortcomings in wearing performance, mainly manifested in low hygroscopicity and serious static electricity.
These shortcomings not only seriously affect the wearing comfort of polyester fabrics, but also affect the production safety of enterprises. The static electricity generated by polyester fabrics may ignite flammable and explosive products and cause fires.

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

[0010] Embodiment 1: The concentration of gamma-polyglutamic acid is 8%, the consumption of ethylene glycol diglycidyl ether is 40% of the quality of gamma-polyglutamic acid, and the polyester fabric is soaked in the finishing liquid for 10min, and the temperature is 25° C. Dip two rolls, the excess rate is 65%, wrap it with a plastic wrap and react at a constant temperature of 50°C for 5h. Remove the plastic wrap and dry it; the water absorption of 1 gram of fabric is 13.33g, the standard moisture regain is 2.2%, and the bending strength is 0.428mN·cm.

Embodiment 2

[0011] Embodiment 2: The concentration of γ-polyglutamic acid is 10%, the consumption of ethylene glycol diglycidyl ether is 20% of the quality of γ-polyglutamic acid, and the polyester fabric is soaked in the finishing liquid for 5min, and the temperature is 20° C. Dip two rolls, the excess rate is 75%, wrap it with a plastic wrap and react at a constant temperature of 50°C for 10h. Then remove the plastic wrap and dry it; the water absorption of 1 gram of fabric is 9.96g, the standard moisture regain is 2.9%, and the bending strength is 0.973mN·cm.

Embodiment 3

[0012] Embodiment 3: the concentration of γ-polyglutamic acid is 15%, the consumption of ethylene glycol diglycidyl ether is 60% of the quality of γ-polyglutamic acid, and the polyester fabric is soaked in the finishing solution for 8min, and the temperature is 26° C. Soak twice and roll, the excess rate is 85%, wrap with plastic wrap and react at a constant temperature of 60°C for 15h. Then remove the plastic wrap and dry; 1 gram of fabric has a water absorption of 11.96g, a standard moisture regain of 2.7%, and a flexural strength of 0.973mN·cm.

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Abstract

The invention discloses a method for improving water and moisture absorbability of polyester fabric by using gamma-polyglutamic acid hydrogel which is a biological high-molecular material. The method is a method for finishing the fabric by using gamma-polyglutamic acid as a finishing agent and ethylene glycol diglycidyl ether as a cross-linking agent. The method comprises the steps of: dissolving the gamma-polyglutamic acid in distilled water or tap water to prepare solution with concentration being 4-20%, adding the ethylene glycol diglycidyl ether with mass percent being 20-60% of the gamma-polyglutamic acid, and fully agitating to ensure even mixing; and soaking the polyester fabric in the finishing agent for 5-10 minutes, using a padder for two times of soaking and two times of padding, keeping the padding residual rate to be 60-110%, wrapping the soaked and padded fabric with a preservative film, putting in a drying oven with the temperature being 40-80 DEG C for reaction for 5-25h, removing the preservative film and drying; or baking the soaked and padded fabric in a baking machine with the temperature being 110-140 DEG C for 5-10 minutes. The standard moisture regain and the water regain of the polyester fabric finished by adopting the method are obviously improved and the wearing comfort is obviously improved.

Description

Technical field: [0001] The invention relates to a method for finishing the water and hygroscopicity of polyester fabrics, in particular to a method for finishing polyester fabrics with biomacromolecule material gamma-polyglutamic acid hydrogel to improve the water and hygroscopicity. technical background: [0002] Polyester is a polyester fiber with a series of excellent properties, such as high breaking strength and elastic modulus, good resilience, excellent heat setting, good heat resistance and light resistance. Polyester fiber has good washability and wearability, and also has good resistance to organic solvents, soaps, detergents, bleaches, oxidants, and relatively good corrosion resistance, and is stable to weak acids and bases. Although the performance of polyester fiber is excellent, it still has serious shortcomings in wearing performance, mainly manifested in low hygroscopicity and serious static electricity. These shortcomings not only seriously affect the wear...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/59D06M13/11D06M101/32
Inventor 张健飞李政严建军乔长晟巩继贤李秋瑾李辉芹
Owner TIANJIN POLYTECHNIC UNIV
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