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Wool product biological process mould-proof finishing technology based on cutinase pretreatment

A technology of anti-mildew finishing and cutinase, which is applied in fiber treatment, biochemical fiber treatment, animal fiber and other directions, can solve the problems of consumer health hazards, affect the appearance of wool fabrics, and are not resistant to washing, and achieve improved hydrophilicity and durability. Reactivity, anti-mold effect, high binding effect

Inactive Publication Date: 2013-03-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of the present invention can solve the problem that the chemical anti-mold agents used in traditional anti-mold methods are toxic and will cause serious harm to the health of consumers. Many anti-mold agents are colored and will seriously affect the appearance of wool fabrics, especially the current anti-mold The agents are all non-reactive, and can only rely on non-covalent bonds to adsorb on the surface of the fiber, making the anti-mildew effect not durable, not resistant to washing, etc.

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] Sample species: full wool gabardine.

[0021] Soak all-wool gabardine in a lysozyme solution with a pH of 7.0 and a concentration of 5g / L, react at 4°C for 12 hours, take it out, wash it fully in cold water, and dry it at 20°C.

[0022] After the above-mentioned treatment, the anti-mildew grade of the wool fabric is 3, and after washing twice, the anti-mildew grade is 4, indicating that the lysozyme adsorbed on the wool fabric has been completely washed off, and there is no longer any lysozyme. Anti-mildew effect (anti-mildew effect is divided into 5 levels from 0 to 4, level 0: no mold growth is observed under a magnifying glass of about 50 times; level 1: mold growth is invisible or difficult to see with the naked eye, and the growth area of ​​mold is less than 10 %; Level 2: Mold growth is clearly visible to the naked eye, and the coverage area of ​​the mold on the sample surface is 10%-30%; Level 3: Mold growth is clearly visible to the naked eye, and the coverage a...

Embodiment 2

[0024] Sample species: full wool gabardine.

[0025] The whole wool gabardine was soaked in a solution containing 1.5% cutinase and 2g / L wetting and penetrating agent at a temperature of 50°C, pH 7.0 for 1.5 hours, and the fabric was fully washed after treatment.

[0026] Soak the cutinase-treated wool fabric in a lysozyme solution with a pH of 7.0 and a concentration of 5g / L, react at 4°C for 12 hours, take it out, and wash it in cold water.

[0027] Then soak the all-wool gabardine that has been pretreated with cutinase and absorbed lysozyme in 0.2% glutaraldehyde solution, treat it at 10°C for 2 hours, take it out, wash it with cold water for 3-4 times, and dry it at 20°C.

[0028]After the above-mentioned treatment, the wool fabric has a mildew resistance grade of 1 after testing, and after washing twice, its mildew resistance grade is 1. After 10 times of water washing, its anti-mildew grade is 2, indicating that after pretreatment with cutinase and electrostatic pre-ads...

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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Abstract

The invention discloses a wool product biological process mould-proof finishing technology based on cutinase pretreatment, belonging to the technical field of wool fabric dyeing and finishing, which is aimed at realizing a mould-proof effect of a wool product by use of lysozyme. The technology disclosed by the invention can solve the problems of the traditional mould-proof method that a chemical mould inhibitor has toxicity and a colored mould inhibitor influences appearance and mould-proof effect of wool fabric and is not resistant to washing and the like. The technology comprises the following steps of: processing wool in a cutinase solution with certain concentration at certain temperature and pH value to remove a hydrophobic lipoid layer on the wool surface and improve the hydrophilicity of wool and expose a reactive group on the wool surface; impregnating the pretreated wool in a solution with certain pH value, and adsorbing lysozyme on wool fiber through electrostatic interaction; and processing the wool fiber with pre-adsorbed lysozyme in a glutaraldehyde solution with certain concentration at certain temperature for certain time, and fixing the lysozyme on the wool product through electrostatic adsorption and chemical crosslinking effect; and performing washing and low-temperature drying.

Description

technical field [0001] The invention discloses a wool biological mildew-proof finishing process based on cutinase pretreatment, which belongs to the application technical field of wool fabric dyeing and finishing in the wool textile industry. Background technique [0002] Mold, also known as filamentous fungus, has the characteristics of wide distribution, fast reproduction, strong adaptability and easy mutation, and is one of the main biological factors that harm wool textiles. Mold is widely distributed in nature, and it can be found in soil, water, and air. In southern China, due to high temperature and humidity, mildew of wool textiles occurs from time to time, causing fabric damage, especially after severe damp, If it is not treated in time, mildew will easily occur and cause serious losses. Mold growth on the surface of wool textiles is a natural phenomenon. Enzymes or other substances secreted by mold can damage wool textiles, change their physical and chemical prope...

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): D06M16/00D06M13/123D06M101/12
Inventor 王强范雪荣王平崔莉袁久刚吴敬
Owner JIANGNAN UNIV
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