One-bath low-temperature desizing, refining and bleaching pretreatment method of cotton woven fabric

A fabric and desizing technology, applied in the field of dyeing and finishing, can solve the problems of fiber damage, high energy consumption, severe reaction conditions, etc., and achieve the effects of avoiding strong damage to fabrics, improving production efficiency, and shortening the process flow

Active Publication Date: 2014-12-24
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the bleaching of pure cotton woven fabrics and cotton-containing woven fabrics needs to be carried out under high temperature alkaline conditions, the reaction conditions are severe, the fibers are seriously damaged, the ene

Method used

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  • One-bath low-temperature desizing, refining and bleaching pretreatment method of cotton woven fabric
  • One-bath low-temperature desizing, refining and bleaching pretreatment method of cotton woven fabric
  • One-bath low-temperature desizing, refining and bleaching pretreatment method of cotton woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A one-bath low-temperature desizing, refining and bleaching pretreatment method for cotton woven fabrics, the process is as follows: Add amylase, pectinase, lipase, ligninase, hydrogen peroxide, acyloxy group to the one-bath pretreatment system A new type of bleach activator (Shangyu Jiehua Chemical Co., Ltd., the structural formula is Auxiliaries and chelating agents, adjust the pH to 7 with acetic acid, put the fabric (pure cotton woven gray fabric, the size used is starch slurry) into the pretreatment solution at a bath ratio of 1:50, and heat up at a heating rate of 2°C / min to 50°C, keep warm for 60 minutes, and finally wash and dry the fabric.

[0019] The one-bath processing prescription is as follows:

[0020]

[0021]

Embodiment 2

[0023] A one-bath low-temperature desizing, refining and bleaching pretreatment method for cotton woven fabrics, the process is as follows: Add amylase, pectinase, lipase, ligninase, hydrogen peroxide, acyloxy group to the one-bath pretreatment system Novel bleach activator (structural formula is Auxiliaries and chelating agents, adjust the pH to 6 with hydrochloric acid, put the fabric (pure cotton woven gray fabric, the size used is starch slurry) into the pretreatment solution at a bath ratio of 1:20, and heat up at a heating rate of 2°C / min To 45 ℃, keep warm for 60min, finally wash the fabric and dry it.

[0024] The one-bath processing prescription is as follows:

[0025]

Embodiment 3

[0027] A one-bath low-temperature desizing, refining and bleaching pretreatment method for cotton woven fabrics, the process is as follows: add PVA enzyme, pectinase, lipase, ligninase, hydrogen peroxide, acyloxy group to the one-bath pretreatment system Novel bleach activator (structural formula is Penetrant SF and chelating agent, adjust the pH to 6 with sodium bicarbonate, put the fabric (pure cotton woven gray fabric, the slurry used is PVA slurry) into the pretreatment solution at a bath ratio of 1:50, at a rate of 2°C / min The heating rate was raised to 60°C, and the temperature was kept for 60 minutes. Finally, the fabric was washed and dried.

[0028] The one-bath processing prescription is as follows:

[0029]

[0030]

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PUM

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Abstract

The invention discloses a one-bath low-temperature desizing, refining and bleaching pretreatment method of cotton woven fabric. The method comprises the steps of adding 1-5g/ L of bio-enzyme for desizing, 3-8g/ L of bio-enzyme for refining, 2-6g/ L of hydrogen peroxide, 1-4g/ L of a bleach activator, 2-6g/ L of a chelating agent and 0.5-4g/ L of an auxiliary agent into a one-bath system, adjusting the pH value to 6.0-7.5, putting the fabric into a dye bath according to the bath ratio of 1: (10-100), heating up to 50-70 DEG C at the speed of 0.5-2 DEG C/ minute, carrying out heat preservation for 40-120 minutes, finally, washing the fabric with water, and drying or airing. The bio-enzyme for desizing, the bio-enzyme for refining and the bleach activator are added into a pretreatment system of the cotton woven fabric, so that the processes of desizing, refining and bleaching of the cotton woven fabric can be carried out in one bath at a low temperature, the strength damage to the fabric is avoided, the technological process of the dyeing and finishing pretreatment of the cotton woven fabric can be shortened, the energy consumption is reduced, and the production efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and relates to a one-bath low-temperature desizing, refining and bleaching pretreatment method for cotton woven fabrics. The method is suitable for low-temperature desizing, refining and bleaching pretreatments of pure cotton woven fabrics or cotton-containing woven fabrics . Background technique [0002] Cotton fabric is a type of textile fabric that currently occupies a large market share. Among them, cotton woven fabrics are used in shirts, suits, trousers, home textiles and other fields because of their stable size and shape and comfortable wearing. However, in the weaving process of cotton woven fabrics, in order to enhance the spinnability of the fabrics, warp sizing is required, so that the fabrics have a size of about 8%, and the cotton fibers themselves contain oil, wax paper, ash, pectin, lignin, pigments, etc. Natural impurities, the above-mentioned sizing or impurities n...

Claims

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Application Information

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IPC IPC(8): D06M16/00D06L3/02D06M101/06D06L4/12D06L4/13
Inventor 曹机良孟春丽魏媛张晓静洪亮程献伟
Owner HENAN INST OF ENG
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