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Pretreatment of cotton fabrics by composite enzyme rolling and pilling up

A technology of compounding biological enzymes and cotton knitted fabrics, which is applied in the fields of biochemical fiber treatment, fiber treatment, textiles and papermaking, etc., can solve the problems of fabric damage, high alkali consumption, intense oxidation, etc., and achieves less fabric damage and waste water environment. The effect of less pollution and improved fabric quality

Inactive Publication Date: 2005-12-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A variety of so-called commercial compound enzyme preparations have appeared in China in recent years, but most of these products are blended products of biological enzymes and chemicals (especially a mixture of alkalis), and some even do not have any enzyme preparation ingredients at all, and use must use up to 10g / L~15g / L (100%H 2 o 2 ) hydrogen peroxide for oxygen bleaching treatment, its high alkali consumption, intense oxidation, easy to damage the fabric
In addition, although there are many varieties of these compound enzymes, they have not been widely used in production.
The alkaline pectinase introduced by Novozymes is also difficult to adapt to the characteristics of cotton fabrics in my country, and is still under application research.

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] Example 1: 14.5tex pure cotton cotton wool cloth

[0021] Process flow: The cotton knitted grey fabric is first treated in a boiling water bath for 40 minutes, then the fabric is squeezed dry, and then immersed in the composite enzyme solution for a certain period of time, the fabric is taken out and washed with hot water (to kill the enzyme), washed with cold water, and dried at room temperature.

[0022] Among them, the composition of the biological enzyme treatment solution is: alkaline pectinase 4g / L and neutral cellulase 0.5g / L. The pH of the treatment bath is 8.6-10.0, the bath ratio of the cotton knitted fabric to the immersion enzyme solution is 1:20, and the immersion time is 70 minutes. After treatment, wash at 95-100°C for 5 minutes to inactivate the enzyme, and finally wash with cold water.

[0023] The cotton knitted fabric after scouring with the above complex enzyme has a wettability of 9.0s after scouring, a wettability of 4.8s after bleaching, R457 whitenes...

Embodiment 2

[0024] Example 2: 18.7tex pure cotton cotton wool cloth

[0025] Process flow: the cotton knitted grey fabric is treated in a boiling water bath for 30 minutes, then the fabric is squeezed dry, and then immersed in the composite enzyme solution for a certain period of time, the fabric is taken out and washed with hot water (to kill enzymes), washed with cold water, and dried at room temperature.

[0026] Among them, the composition of the biological enzyme treatment solution is: Bacillus subtilis WSHB04-03 produces alkaline pectin lyase 1g / L, neutral cellulase 1.0g / L; neutral protease 4g / L, treatment bath pH 8.6-10.0, The bath ratio of the cotton knitted fabric to the dipping enzyme solution is 1:20, and the dipping time is 80 minutes. After treatment, wash at 95-100°C for 5 minutes to inactivate the enzyme, and finally wash with cold water.

[0027] The cotton knitted fabric after scouring with the above complex enzyme has a wettability of 8.5s after scouring, a wettability of 2....

Embodiment 3

[0029] Example 3: 14.5tex pure cotton jacquard cloth

[0030] Process flow: The cotton knitted grey fabric is treated in a boiling water bath for 10 minutes, then the fabric is squeezed dry, and then immersed in the composite enzyme solution for a certain period of time, the fabric is taken out and washed with hot water (to kill enzymes), washed with cold water, and dried at room temperature.

[0031] Among them, the composition of the biological enzyme treatment solution is: alkaline pectinase 10 g / L, neutral cellulase 0.1 g / L, and xylanase 1 g / L. The pH of the treatment bath is 8.6-10.0, and the immersion time is 40 minutes. After treatment, wash at 95-100°C for 5 minutes to inactivate the enzyme, and finally wash with cold water.

[0032] The cotton knitted fabric after scouring with the above-mentioned complex enzyme has a wettability of 8.2s after scouring, a wettability of 4.4s after bleaching, a whiteness value of R457 Wr62.41% after scouring, Wr 76.52% after bleaching, and...

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 provided a fore treatment process of the enzyme rolling pile for the fabric which belongs to the fore treatment process of the dyeing and finishing field. The process is: first to fore treatment of the loom stare using the boiling water, then dipping into the the mixture of the alkali pectinase liquid, neutral proteinase liquid and xylanase liquid, then to wash with the hot water ( killing the enzyme) and the cool water, last to dry in the air. the best pectinase is produced by the Bacillus subtilis WSHB04-03. the process has many merits such as high efficiency, low work output and the energy conservation and so on.

Description

Technical field [0001] The invention relates to a pretreatment process of cotton knitted fabric composite biological enzyme dipping method, in particular to a cotton knitted fabric scouring method of alkaline pectinase, neutral cellulase, neutral protease and xylanase composite biological enzyme dipping method The process belongs to the technical field of pre-treatment technology in the knitting dyeing and finishing industry. Background technique [0002] During the growth of cotton fiber, the cellulose content increases with the increase in maturity. In addition, there are a certain amount of substances that play a protective role in the growth of cotton fiber, as well as impurities generated in the process of biological metabolism, which grow in symbiosis with cellulose. , These substances are called symbiotics or companions of cellulose. Cellulose symbiotics mainly include pectin substances, proteins, waxy substances, natural pigments, etc., as well as cotton seed hull fragmen...

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): D06M16/00
Inventor 陈坚王强高卫东范雪荣华兆哲堵国成
Owner JIANGNAN UNIV
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