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Wool-fabric biological anti-felting method based on cutinase, keratinase and protease treatment

A technology of keratinase and protease, which is applied in the field of biological anti-felting of wool fabrics based on cutinase, keratinase and protease treatment, can solve the problems of large damage to anti-felting fibers and environmental pollution, and achieve low fiber damage and better wetting The effect of shortening the time and improving the dyeing performance

Inactive Publication Date: 2009-10-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can improve the wettability and biological anti-felting effect of wool fabrics, solve the technical problems of large damage to wool anti-felting fibers and serious environmental pollution in the traditional chlorination method, achieve optimized treatment effects, improve the environment, and improve the quality of wool. The purpose of product quality

Method used

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  • Wool-fabric biological anti-felting method based on cutinase, keratinase and protease treatment

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Fabric Variety: All-wool gabardine.

[0020] (1) Extraction pretreatment: the wool fabric is placed in chloroform:methanol (87:13, v / v) organic solvent, reflux extraction at 55°C for 4 hours, and then washed with ethanol and hot water to remove residual impurities on the cloth surface.

[0021] (2) Oxidation treatment: treatment bath: 30% hydrogen peroxide 20g / L, solution of wetting and penetrating agent 0g / L, temperature 50°C, pH 8.0, treatment time 0.5 hours.

[0022] (3) Cutinase treatment: treatment bath: cutinase 5.0% owf, solution of wetting and penetrating agent 0 g / L, temperature 60° C., pH 8.0, treatment time 4 hours.

[0023] (4) Keratinase treatment: treatment bath: solution of cutinase 5.0% owf, wetting and penetrating agent 0 g / L, temperature 55° C., pH 8.5, time 8 hours.

[0024] (5) Protease treatment: treatment bath: 2% owf of protease, 0 g / L solution of wetting and penetrating agent, 55° C., pH 8.5, treatment time 1 hour.

[0025] Sample 1: Oxidation ...

Embodiment 2

[0029] Fabric type: all-wool women's clothing.

[0030] (1) Extraction pretreatment: the wool fabric is placed in carbon tetrachloride: methanol (87:13, v / v) organic solvent solution, refluxed and extracted at 55°C for 4 hours, and then washed with ethanol and hot water to remove the cloth Impurities remain on the surface.

[0031] (2) Cutinase treatment: treatment bath: solution of cutinase 2.0% owf, wetting and penetrating agent 1 g / L, temperature 60° C., pH 8.0, treatment time 4 hours.

[0032] (3) Keratinase treatment: treatment bath: solution of cutinase 5.0% owf, wetting and penetrating agent 0 g / L, temperature 55° C., pH 8.5, time 8 hours.

[0033] (4) Protease treatment: treatment bath: protease 1% owf solution, 55° C., pH 8.5, treatment time 1 hour.

[0034] Sample 1: treated with two baths of cutinase and protease (steps 1, 2 and 4);

[0035] Sample 2: Three-step treatment with cutinase, keratinase pretreatment and protease (steps 1, 2, 3 and 4).

[0036] After t...

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Abstract

The invention provides a wool-fabric biological anti-felting method based on cutinase, keratinase and protease treatment, which belongs to the technical field of application of dyeing and finishing of wool fabric in the wool-spinning industry. The method aims to overcome the defects that the chlorination-process for wool-felting prevention seriously pollutes the environment and the single protease-method treatment is poor in fabric wettability and high in felting rate in order to achieve the aim of optimizing the protease treatment effect of the wool fabric. After all-wool grey fabric is extracted to remove free oily impurities, the all-wool grey fabric is sequentially pretreated with cutinase and keratinase solutions so as to improve the surface hydrophilicity of fiber scales and the accessibility of protease molecules, and then the wool fabric is subjected to reduction processing in a protease solution, thus biological processing combined with wool enzyme reduction is realized. The method makes the prior chlorination-process felting prevention replaced with a biological-method wool-felting prevention process, and the method not only effectively improve the reduction rate and anti-felting effect of the wool fabric, and promote the improvement of fabric wettability, but also can effectively increase the dyeing depth of fabric, and reduce fiber damage in reduction processing, and is favorable for protecting ecological environment.

Description

technical field [0001] The invention discloses a wool fabric biological anti-felting method based on cutinase, keratinase and protease treatment, which belongs to the application technical field of wool fabric dyeing and finishing in the wool spinning industry. Background technique [0002] Wool has fluffing properties. When the wool fabric is subjected to external force in a humid and hot state, it will produce felting, shrinking the area, changing the shape, protruding fluff, reducing elasticity, rough hand feeling, and seriously affecting the appearance and wearing performance of the fabric. Therefore, it is necessary to carry out weight reduction and anti-felting finishing for the purpose of removing the scale layer on the woolen fabric. At present, the anti-felting effect of wool is better and the most widely used is the chlorination method, such as hypochlorite or dichloroisocyanurate for treatment. When the chlorination method is used to treat wool, the fibers tend t...

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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IPC IPC(8): D06M16/00C12S11/00D06M101/10
Inventor 王平范雪荣崔莉王强蔡成岗
Owner JIANGNAN UNIV
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