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A kind of polishing cellulase reuse method

A cellulase, a certain amount of technology, applied in the field of textile printing and dyeing, can solve the problems of declining profit margins, high prices, and restrictions on popularization and application of textiles

Active Publication Date: 2016-08-31
德沐新材料科技苏州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of cellulase preparations is higher than that of general chemical additives. If it cannot be recycled, it will inevitably lead to a decline in the profit margin of textiles, which will limit the further application of this technology

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

[0014] (1) Cotton fabric (160g / m 2 ) first undergo conventional cellulase polishing treatment (enzyme dosage 2ml / L, pH 4.0, temperature 50°C, time 45min, bath ratio 10:1), then lower the temperature of the treatment solution to 5°C, adjust the pH to 7.5 with ammonia water and continue After 15 minutes of treatment, the fabric is taken out from the treatment solution;

[0015] (2) Use acetic acid to adjust the pH of the treatment solution to 4, first filter it with a microporous membrane with a pore size of 0.45 μm, and then use an ultrafiltration membrane with a molecular weight cut-off of 10 kDa to concentrate the treatment solution to 20% of its original volume;

[0016] (3) Add 0.05g / L glucose oxidase and 0.01g / L hydrogen peroxide to the concentrated solution, raise the temperature to 30°C and keep it warm for 20min;

[0017] (4) Take the cotton fabric that needs to be polished, add new water to make the liquor ratio meet the requirements of the conventional liquor ratio, ...

Embodiment 2

[0020] (1) Cotton fabric (300g / m 2 ) first undergo conventional cellulase polishing treatment (enzyme dosage 3ml / L, pH 4.0, temperature 50°C, time 45min, bath ratio 10:1), then lower the temperature of the treatment solution to 10°C, adjust the pH to 8 with ammonia water and continue After 15 minutes of treatment, the fabric is taken out from the treatment solution;

[0021] (2) Use acetic acid to adjust the pH of the treatment solution to 4.5, first filter it with a microporous membrane with a pore size of 0.45 μm, and then use an ultrafiltration membrane with a molecular weight cut-off of 10 kDa to concentrate the treatment solution to 20% of its original volume;

[0022] (3) Add 0.1g / L glucose oxidase and 0.02g / L hydrogen peroxide to the concentrated solution, raise the temperature to 30°C and keep it warm for 20min;

[0023] (4) Take the cotton fabric that needs to be polished, add new water to make the liquor ratio meet the requirements of the conventional liquor ratio, ...

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

A method for reusing polished cellulase. First, the temperature of the conventional cellulase polishing treatment solution is reduced to 5-10° C., and the pH is adjusted to 7.5-8 with ammonia water to continue the treatment for 15 minutes, and then the fabric is taken out from the treatment solution; then, Use acetic acid to adjust the pH of the treatment solution to 4-4.5, first filter it with a microporous membrane with a pore size of 0.45 μm, and then use an ultrafiltration membrane with a molecular weight cut-off of 10 kDa to concentrate the treatment solution to 20% of the original volume, and add 0.05- 0.1g / L glucose oxidase and 0.01-0.02g / L hydrogen peroxide, heat up to 30°C and keep warm for 20 minutes; finally, take the cotton fabric to be polished, add new water to the above concentrate to make the liquor ratio meet the conventional liquor ratio requirements, and then A certain amount of cellulase is supplemented to make the enzyme activity in the treatment solution reach the level of conventional polishing treatment, and the cotton fabric is polished. The same effect as conventional cellulase polishing can be obtained, realizing the repeated use of polished cellulase.

Description

technical field [0001] The invention relates to a method for reusing cellulase, in particular to a method for reusing cellulase for polishing cotton fabrics, and belongs to the technical field of textile printing and dyeing. Background technique [0002] Cellulase is the general term for enzymes that catalyze the hydrolysis of cellulose and generate glucose. It is an enzyme system composed of multi-component enzymes, including endoglucanase, exoglucanase and β-glucosidase. Synergistically hydrolyzes cellulose. Cellulase polishing treatment can weaken the fluff on the surface of cotton fabric, and then cooperate with mechanical impact to remove the fluff, achieve the effect of smooth surface, anti-pilling, and make cotton fabric soft, fluffy and other unique properties. In addition, the condition of cellulase polishing is mild, the effect is long-lasting, and it is less harmful to the environment. Compared with other chemical finishing, it has obvious advantages, and has att...

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 Patents(China)
IPC IPC(8): D06M16/00
CPCD06M16/003D06M2101/06
Inventor 郝龙云徐沛龙王蕊蔡玉青
Owner 德沐新材料科技苏州有限公司
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