Low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics

A cotton knitted fabric and pre-treatment technology, which is applied in fiber treatment, biochemical fiber treatment, bleaching products, etc., can solve the problems of unavailable, long process flow, and energy consumption reduction, so as to reduce the overall cost, shorten the process flow, and better The effect of whiteness and capillary effect

Active Publication Date: 2012-07-18
WUHAN SUNHY BIOLOGICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the scouring enzyme in the above-mentioned public documents can reduce or avoid the damage to cotton fibers caused by traditional chemical additives such as strong acids and alkalis during the pretreatment of cotton knitted fabrics, the treatment effect is not ideal, and the effect of removing cotton wax and c

Method used

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  • Low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics
  • Low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics
  • Low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] For light bright color cloth (cotton 21 S Single jersey), utilize the first kind of cotton knitted fabric low-temperature scouring and bleaching one-bath pretreatment process to carry out pretreatment, the steps are as follows:

[0042] (1) Adding 0.4g scouring enzyme preparation A1, 1.6g auxiliary agent B1, 8g mass concentration of 30% hydrogen peroxide and 1g penetrating agent to prepare scouring and bleaching solution according to the ratio of per liter of water;

[0043] (2) Place the cotton knitted fabric to be treated in the scouring and bleaching solution at 60°C for scouring and bleaching, and keep for 60 minutes, the bath ratio of the cotton knitted fabric and the scouring and bleaching solution is 1:8;

[0044] (3) drain the scouring and bleaching solution, and wash the cotton knitted fabric after scouring and bleaching;

[0045] (4) The washed cotton knitted fabric is deoxidized by deoxygenase for dyeing.

[0046] The whiteness of the cotton knitted fabric ...

Embodiment 2

[0048] For light bright color cloth (cotton 21 S Single jersey), utilize the first kind of cotton knitted fabric low-temperature scouring and bleaching one-bath pretreatment process to carry out pretreatment, the steps are as follows:

[0049] (1) Adding 0.8g scouring enzyme preparation A2, 1g auxiliary agent B2, 7g mass concentration as 30% hydrogen peroxide and 1g penetrating agent to prepare scouring and bleaching solution in every liter of water;

[0050] (2) Putting the cotton knitted fabric to be treated into the scouring and bleaching solution at 70° C. for scouring and bleaching for 30 minutes, the bath ratio of the cotton knitted fabric and the scouring and bleaching solution is 1:10;

[0051] (3) drain the scouring and bleaching solution, and wash the cotton knitted fabric after scouring and bleaching;

[0052] (4) After washing, the cotton knitted fabric is deoxidized by deoxygenase to prepare for dyeing;

[0053] The whiteness of the cotton knitted fabric treated...

Embodiment 3

[0055] For light bright color cloth (cotton 21 S Single jersey), utilize the first kind of cotton knitted fabric low-temperature scouring and bleaching one-bath pretreatment process to carry out pretreatment, the steps are as follows:

[0056] (1) Adding 0.2g scouring enzyme preparation A3, 0.8g auxiliary agent B3, 4g mass concentration as 30% hydrogen peroxide and 1g osmotic agent in every liter of water to prepare scouring and bleaching solution;

[0057] (2) Putting the cotton knitted fabric to be treated into the scouring and bleaching solution at 50° C. for scouring and bleaching, keeping for 50 minutes, the bath ratio of the cotton knitted fabric and the scouring and bleaching solution is 1:6;

[0058] (3) drain the scouring and bleaching solution, and wash the cotton knitted fabric after scouring and bleaching;

[0059] (4) After washing, the cotton knitted fabric is deoxidized by deoxygenase to prepare for dyeing;

[0060]The whiteness of the cotton knitted fabric tr...

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Abstract

The invention discloses a low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics, which includes the following steps: preparing scouring and bleaching solution according to the proportion of adding 0.2-0.8g of a scourzyme preparation A, 0.6-1.6g of an assistant B, 4-8g of hydrogen peroxide with the mass concentration of 30% and 1g of a penetrating agent in every liter of water; then, placing to-be-treated cotton knitted fabrics in the scouring and bleaching solution of 50-70 DEG C to be scoured and bleached for 30-60 minutes, emptying the scouring and bleaching solution and washing the cotton knitted fabrics with water, and then utilizing deoxygenation enzyme for deoxygenation to be prepared for dyeing. By combining scouring and bleaching and low-temperature bleaching ingeniously, one bath process can achieve a pretreatment process, scouring and high-temperature bleaching are not needed, and the low-temperature scouring and bleaching one-bath-process pretreatment process of cotton knitted fabrics saves water and energy, and shortens technological process. Products treated by the process meet quality requirements for fabrics and obtain good whiteness and wool effect, and comprehensive cost is lowered.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing and finishing, in particular to a low-temperature scouring and bleaching one-bath pretreatment process for cotton knitted fabrics. Background technique [0002] At present, the textile industry mostly adopts the traditional pre-treatment process of printing and dyeing, relying on strong acid, strong alkali and high temperature to process cotton and linen, which not only damages the strength of the fiber, but also consumes time and energy and causes serious environmental pollution. With the enhancement of people's awareness of environmental protection, environmental protection and energy-saving technology has become an urgent technology for printing and dyeing manufacturers. [0003] Scouring enzyme preparations are enzymes used in the printing and dyeing process of the textile industry, used in the scouring process, and play a role in biocatalytic hydrolysis. Commonly used scouring enzyme pr...

Claims

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Application Information

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IPC IPC(8): D06L3/02D06L3/11D06L1/12D06M16/00C12S11/00D06M101/06D06L4/12D06L4/13
Inventor 詹志春吕涛袁志超
Owner WUHAN SUNHY BIOLOGICAL
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