Biological enzyme process antibacterial and anti-wrinkle finishing method of silk fabric

A bio-enzymatic, anti-wrinkle finishing technology, applied in the fields of biochemical fiber treatment, fiber treatment, animal fiber, etc., can solve the problems of high energy consumption and easy fiber damage, achieve low energy consumption, improve silk fiber strength, and catalytic efficiency. high effect

Inactive Publication Date: 2012-09-19
FOSHAN CITY HANHAI YANBU SISTER FLOWER UNDERWEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silk fabric treated by this method has high antibacterial properties and wrinkle recovery, and the dyeing performance is also improved, which solves the technical problems of high energy consumption and easy damage of fibers in traditional chemical finishing, and improves the quality of silk products

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

specific Embodiment

[0022] Silk fabric adopts tyrosinase to catalyze chitosan grafting on the surface of real silk fiber to improve the antibacterial and anti-wrinkle properties of silk fabric. The specific examples are as follows:

Embodiment 1

[0023] Implementation 1: The silk fabric selected in this implementation is electric spinning.

[0024] (1) Tyrosinase treatment: the degummed silk fabric is immersed in a tyrosinase solution, wherein tyrosinase is 5U / g fabric, penetrant 2g / L solution, temperature is 30°C, pH=7.0 , treatment time 4 hours, bath ratio 1:50.

[0025] (2) Chitosan grafting: After the silk was treated with tyrosinase for 4 hours, 0.3% chitosan was added, and treated for 20 hours at a temperature of 30° C. and pH=7, with a bath ratio of 1:50.

[0026] (3) Enzyme inactivation: Add 2 mol / L trichloroacetic acid to the reaction system and treat for 10 minutes to inactivate tyrosinase.

[0027] (4) Washing and drying: After the enzyme is eliminated, the fabric is fully washed with hot water and cold water respectively, and dried at 50°C.

[0028] Sample 1: a blank sample impregnated with chitosan;

[0029] Sample 2: sample treated with tyrosinase and chitosan;

[0030] After the above process, the in...

Embodiment 2

[0031] Implementation 2: The selected real silk fabric for this implementation is twill.

[0032] (1) Silk pre-swelling: Pre-swell silk fabrics with EDTA and urea solution, including 0.25g / L EDTA, 0.25g / L urea, 2g / L penetrant, temperature 40°C, treatment time 2 hours, to treat silk fabrics Wash well.

[0033] (2) Tyrosinase treatment: soak the pre-swelled silk fabric in tyrosinase solution, wherein tyrosinase 10U / g fabric, penetrant 2g / L solution, temperature 30°C, pH=7.0, The time is 2 hours, and the bath ratio is 1:100.

[0034] (3) Chitosan grafting: 0.5% chitosan was added after tyrosinase treatment for 2 hours, and treated for 20 hours at a temperature of 30° C. and pH=6.5, with a bath ratio of 1:100.

[0035] (4) Enzyme inactivation: Add 2 mol / L trichloroacetic acid to the reaction system and treat for 10 minutes to inactivate tyrosinase.

[0036] (5) Washing and drying: After the enzyme is eliminated, the fabric is fully washed with hot water and cold water respectiv...

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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PUM

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Abstract

The invention discloses a biological enzyme process antibacterial and anti-wrinkle finishing method of a silk fabric, belongs to the field of a textile biotechnology, and aims to overcome the defects of high baking temperature, high probability of damage of silk fibers and reduced whiteness in real silk antibacterial and anti-wrinkle treatment of the conventional chemical method and realize enzyme-promoted antibacterial and anti-wrinkle functional modification of a real silk fabric. According to the method, a chitosan natural finishing agent with a primary amine structure is grafted to the surface of the silk fiber by utilizing the catalytic oxidation effect of tyrosinase, so that the antibacterial and anti-wrinkle effects of the silk fabric are improved. The process flow comprises the following steps of: pre-treating the silk fabric; catalyzing grafting modification treatment of chitosan by the tyrosinase; washing; and drying. Through the silk fabric treated by the invention, the antibacterial performance is improved, the wrinkle recovery performance is improved, and the mechanical property and the dyeing performance of the fabric are also improved. Compared with the conventional chemical method, the method has the advantages of adoption of the tyrosinase process for catalysis of the antibacterial and anti-wrinkle treatment process of the real silk, low energy consumption, high efficiency, less pollution and contribution to environmental protection.

Description

technical field [0001] The present invention relates to a bio-enzymatic antibacterial and anti-wrinkle finishing method for silk fabrics, in particular to grafting chitosan onto the surface of real silk fibers by catalyzing oxidation with tyrosinase to impart antibacterial and anti-wrinkle properties to silk fabrics The method belongs to the field of textile biotechnology. Background technique [0002] Silk fibers and related materials are mainly composed of sericin and silk fibroin. Sericin is dissolved or hydrolyzed during the degumming process, and silk fibroin with high chemical stability is effectively retained. There are not only hydrogen bonds and van der Waals forces, but also more disulfide bonds and salt bonds among the silk fibroin macromolecules in silk, which make it have strong hydrolysis resistance to different proteolytic enzymes. The macromolecules of silk fibroin are proteins, which can easily become nutrients for bacteria, molds and other microorganisms u...

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): D06M16/00D06M15/03C08G81/00D06M101/10
Inventor 王平袁久刚崔莉张颖范雪荣王强
Owner FOSHAN CITY HANHAI YANBU SISTER FLOWER UNDERWEAR
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