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Pretreatment method of cotton fabric

A cotton-type fabric and fabric technology, applied in fiber treatment, biochemical fiber treatment, plant fiber, etc., can solve problems such as pollution and large water consumption

Inactive Publication Date: 2015-06-17
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In view of the above problems, in order to solve the problems of large water consumption and serious pollution in the pretreatment process of cotton-type fabrics, the object of the present invention is to provide a method that uses a high proportion of alcohol organic solvents and a small amount of water and desizing agent or refining agent or bleaching agent Method for pre-treating cotton-type fabric with mixed solution

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

[0034] Select 1g pure cotton fabric as the cotton-type fabric to be desized, put the pure cotton fabric into 95% ethanol by volume fraction, 5% water by volume, 10g / L sodium hydroxide and 2g / L In the desizing solution mixed with L penetrant JFC, desizing is carried out in the desizing device, the bath ratio of the desizing solution is 1:40, the desizing temperature is 85°C, and the desizing time is 60 minutes.

[0035] Results: The desizing rate was 93.25%.

Embodiment 2

[0037] Select 1g of polyester-cotton fabric as the cotton-type fabric to be desized, put the polyester-cotton fabric in 50% isopropanol by volume fraction, 50% by volume of water, 1g / L amylase and 1g In the desizing liquid mixed with penetrant JFC / L, desizing is carried out in the desizing device, the bath ratio of the desizing liquid is 1:20, the desizing temperature is 40°C, and the desizing time is 30 minutes.

[0038] Result: The desizing rate was 90.70%.

Embodiment 3

[0040] Select 1g cotton-spandex fabric as the cotton fabric to be desized, put the cotton-spandex fabric in 70% ethanol, 30% water, 5g / L PVA degrading enzyme and 1g / L In the desizing liquid mixed with L penetrant JFC, desizing is carried out in the desizing device, the bath ratio of the desizing liquid is 1:30, the desizing temperature is 60°C, and the desizing time is 40 minutes.

[0041] Results: The desizing rate was 92.53%.

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Abstract

The invention relates to a pretreatment method of cotton fabric, and belongs to textile printing and dyeing pretreatment process technology. According to the method provided by the invention, the cotton fabric is subjected to the pretreatment by a solution which is prepared by mixing an alcohol organic solvent in high proportion, a little water, and a desizing agent / a refining agent / bleaching agent, and therefore, the problems of high water consumption, difficult recycling and heavy pollution in traditional cotton fabric pretreatment are changed. In the pretreatment process of the cotton fabric, not only are water consumption and reagent dose are largely and effectively reduced, but also the pretreatment effect of the cotton fabric can be improved; the alcohol organic solvent on the surface of the cotton fabric treated by the method provided by the invention can be rapidly volatilized in a drying process, drying time is shortened, and energy is saved; the alcohol organic solvent used by the method provided by the invention is safe, nontoxic, and can be recycled; and the pretreatment method is mature in recycling process, low in cost, clean and environment-friendly.

Description

technical field [0001] The invention relates to a method for pretreatment of cotton-type fabrics, which belongs to the pretreatment technology of textile printing and dyeing. Background technique [0002] The material of cotton fabric is mainly composed of cotton fibers. The cotton fibers in these undyed gray cloths contain natural impurities such as pectin and wax. These natural impurities mainly exist in the cuticle and primary cell wall of cotton fibers. Plus the oil on the fiber, the size and dirt on the warp. The presence of these impurities not only makes the fabric yellow in color, rough in hand, but also poor in water absorption. For this reason, the first step in the dyeing and finishing of cotton-type fabrics is to carry out pretreatment to it, and the quality of pretreatment plays a key role in the quality of finished products. Especially today, when the market is increasingly demanding high-quality textiles, higher requirements are placed on pre-processing tech...

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): D06L1/06D06L1/14D06L3/02D06L3/06D06L3/08D06M11/38D06M16/00D06M101/06D06M101/32D06M101/38D06M101/34D06L4/13D06L4/23D06L4/24
Inventor 徐卫林夏良君程珊王运利
Owner WUHAN TEXTILE UNIV
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