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Multifunctional finishing method for treating wool fabric with TG enzyme and laccase

A multi-functional, laccase-catalyzed dopamine technology, applied in the field of multi-functional finishing, can solve the problems of easy felting, poor antibacterial persistence, easy to breed bacteria, etc., and achieve good anti-felting, improved properties, and anti-oxidation effects

Active Publication Date: 2017-09-26
无锡协新毛纺织股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wool fabrics have disadvantages in care, such as easy felting during washing, easy to breed bacteria under mild conditions
Among them, the antibacterial durability of the adsorption method and the coating method is poor, and the chemical cross-linking grafting method needs to use a large amount of chemical cross-linking agents and catalysts.

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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  • Multifunctional finishing method for treating wool fabric with TG enzyme and laccase
  • Multifunctional finishing method for treating wool fabric with TG enzyme and laccase
  • Multifunctional finishing method for treating wool fabric with TG enzyme and laccase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Fabric Variety: All-wool gabardine fabric.

[0027] The following methods are used for multifunctional finishing of wool fabrics:

[0028] (1) TG enzyme catalyzed grafted dopamine: Weigh 3% owf of dopamine, dissolve it in pH 5, 0.1mol / L phosphate buffer solution, add wool fabric and 20U / g TG enzyme, bath ratio 1:40 , shaking and reacting in a constant temperature water bath at 60°C for 4 hours, after the reaction, boil the reaction solution to inactivate the TG enzyme, take out the wool fabric, wash it with deionized water, and dry it;

[0029] (2) laccase-catalyzed dopamine-modified wool grafted PEI: take 5% owf of polyethyleneimine (PEI), make it dissolve in pH 6, 0.1mol / L phosphate buffer solution, add step ( 1) The obtained dopamine-modified wool fabric or wool fabric not treated in (1) was treated with 3 U / g laccase in a water bath at 50°C for 2 hours, then the fabric was taken out, cleaned with deionized water, and dried.

[0030] Sample 1: Untreated full wool g...

Embodiment 2

[0036] Fabric type: women's clothing.

[0037] The following methods are used for multifunctional finishing of wool fabrics:

[0038] (1) TG enzyme catalyzed grafted dopamine: Weigh 5% owf of dopamine, dissolve it in pH 5, 0.1mol / L phosphate buffer solution, add wool fabric and 25U / g TG enzyme, bath ratio 1:40 , shake and react in a constant temperature water bath at 50°C for 6 hours, after the reaction, boil the reaction solution to inactivate the MTG enzyme, take out the wool fabric, wash it with deionized water, and dry it;

[0039] (2) laccase-catalyzed dopamine-modified wool grafted PEI: take 3% owf polyethyleneimine (PEI), make it dissolve in pH 6, 0.1mol / L phosphate buffer solution, add step (1 ) The dopamine-modified wool fabric or wool fabric not treated in (1) was treated with 3 U / g laccase in a 40°C water bath for 4 hours, and then the fabric was taken out, cleaned with deionized water, and dried.

[0040] Sample 1: Untreated women's clothing

[0041] Sample 2: wom...

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Abstract

The invention discloses a multifunctional finishing method for treating a wool fabric with a TG enzyme and a laccase, and belongs to the technical field of textile manufacturing. The TG enzyme is used to catalyze wool grafted dopamine in advance, then the laccase is used to catalyze a phenolic hydroxyl group on the dopamine to generate a quinones intermediate, the active quinones intermediate triggers the self-polymerization of the dopamine molecule on one side, and also reacts with an amino group of polyethyleneimine (PEI) on the other side, and a poly-dopamine / polyethyleneimine composite membrane is formed on the surface of a wool fiber, so that the purposes of multifunctional finishing of preventing shrinkage, resisting bacteria and oxidation and the like are fulfilled. The method is mild in process conditions, achieves excellent functional effects, causes low damages on the strength of the wool, and improves the property of the wool. On the day that the environmental protection concept is increasingly emphasized, multifunctional finishing of the wool fabric with the biological enzyme is safe, environmentally friendly and efficient, and the method has a broad development prospect.

Description

technical field [0001] The invention relates to a multifunctional finishing method for treating wool fabrics with TG enzyme and laccase, belonging to the technical field of textiles. Background technique [0002] Wool fabrics are of high quality, good moisture absorption, warmth retention, and soft luster, and are deeply loved by consumers. However, wool fabrics have disadvantages in terms of care, such as easy felting during washing and easy breeding of bacteria under mild conditions. Commonly used wool anti-felting methods mainly reduce the friction between fibers by changing the scale layer of wool, such as oxidation method and resin method. These wool fabric anti-felting finishing methods use a large amount of chemical reagents, which not only pollute the environment, but also have poor anti-felting effects and great damage to fibers. The traditional wool antibacterial finishing methods mainly include adsorption method, coating method and chemical cross-linking and gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M13/368D06M16/00D06M101/12
CPCD06M13/368D06M15/61D06M16/00D06M16/003D06M2101/12D06M2200/45
Inventor 朱华君王强邱晓忠许玲玲范雪荣余圆圆崔莉王平袁久刚
Owner 无锡协新毛纺织股份有限公司
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