Low-temperature pretreatment technology of cotton and cotton blended fabrics

A blended fabric and pretreatment technology, applied in the field of textile printing and dyeing, can solve problems such as high consumption and impact on the ecological environment, and achieve the effects of good breaking strength, short process flow and mild reaction conditions

Inactive Publication Date: 2013-03-20
ZHEJIANG LAIMEI TEXTILE & PRINTING & DYEING SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the descouring and bleaching of traditional cotton fabrics and their blended fabrics consumes a lot of water, heat energy and chemical additives, and discharges a large amount of wastewater containing high-concentration pollutants, which consumes a lot of energy and seriously affects the ecological environment.

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

[0013] The invention discloses a low-temperature pretreatment process for cotton and its blended fabrics, which uses a low-temperature scouring and bleaching agent, a low-temperature scouring and bleaching accelerator, a low-temperature hydrogen peroxide activator and hydrogen peroxide to treat the cotton and its blended fabrics in a treatment bath. In each liter of treatment bath, the dosage of penetrant is 5~15g, the dosage of low-temperature scouring and bleaching accelerator is 1.5~2.5g, the dosage of low-temperature scouring and bleaching agent is 0.4~1.0g, the dosage of hydrogen peroxide is 10~30g, and the dosage of low-temperature hydrogen peroxide activator is 0.5~1.5g. In every liter of treatment bath, the consumption of penetrating agent is 10g, the consumption of low-temperature scouring and bleaching accelerator is 2g, the consumption of low-temperature scouring and bleaching agent is 0.8g, the consumption of hydrogen peroxide is 20g, and the consumption of low-tempe...

Embodiment 2

[0016] The difference from Example 1 is: in every liter of treatment bath, the dosage of penetrating agent is 5g, the dosage of low-temperature scouring and bleaching accelerator is 1.5g, the dosage of low-temperature scouring and bleaching agent is 0.4g, the dosage of hydrogen peroxide is 10g, and the dosage of low-temperature hydrogen peroxide activator is 0.5g. The treatment process includes the following steps: dissolve the penetrating agent in the treatment bath at 20°C, put the textiles into the treatment bath, keep the treatment bath to circulate evenly, then raise the temperature to 45°C, put the low-temperature scouring and bleaching accelerator, low-temperature scouring and bleaching agent 1. Add hydrogen peroxide into the treatment bath, adjust the pH to 7.5, treat for 30 minutes, then raise the temperature to 65°C, add low-temperature hydrogen peroxide activator and treat at this temperature for 20 minutes, and then enter the washing and drying process.

[0017] It ...

Embodiment 3

[0020] The difference from Example 1 is: in every liter of treatment bath, the dosage of penetrating agent is 15g, the dosage of low-temperature scouring and bleaching accelerator is 2.5g, the dosage of low-temperature scouring and bleaching agent is 1.0g, the dosage of hydrogen peroxide is 30g, and the dosage of low-temperature hydrogen peroxide activator is 1.5g. The treatment process includes the following steps: dissolve the penetrating agent in the treatment bath at 30°C, put the textiles into the treatment bath, keep the treatment bath to circulate evenly, then raise the temperature to 55°C, put the low-temperature scouring and bleaching accelerator, low-temperature scouring and bleaching agent 1. Add hydrogen peroxide into the treatment bath, adjust the pH to 9, treat for 40 minutes, then raise the temperature to 75°C, add low-temperature hydrogen peroxide activator and treat at this temperature for 30 minutes, and then enter the washing and drying process.

[0021] The ...

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PUM

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Abstract

The invention provides a low-temperature pretreatment technology of cotton and cotton blended fabrics. A low-temperature scouring and bleaching agent, a low-temperature scouring and bleaching promoter, a low-temperature hydrogen peroxide activator and hydrogen peroxide are adopted to treat cotton and the cotton blended fabrics in a treatment bath. The technology has the advantages of short flow, mild reaction condition, low raw material costs, low COD and AOX values in wastewater, environmental protection, realization of good whiteness, capillary effect and breaking strength of the treated fabrics, and effective removal of symbionts in the cotton fabrics.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to a low-temperature pretreatment process for cotton and its blended fabrics. Background technique [0002] The purpose of the pretreatment of cotton fabric and its blended fabric is to remove oil, size and natural impurities such as cotton wax on the fabric, so as to reduce the impurity content on the fabric and improve the water absorption and whiteness of the fabric. However, whether it is the three-step method of deboiling, boiling and bleaching, or the two-step method of deboiling, bleaching or one-step decoiling and bleaching, corresponding additives must be used to ensure the quality of deboiling and bleaching. The scouring agent should have excellent permeability, emulsification and dispersibility. During the scouring process, the penetrability of the scouring agent enables it to quickly and evenly penetrate into the interior of the fabric, yarn and fiber, so that...

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 Applications(China)
IPC IPC(8): D06L3/02D06L3/00D06L1/00D06L4/12D06L4/13
Inventor 蒋幼明高加勇蒋志新
Owner ZHEJIANG LAIMEI TEXTILE & PRINTING & DYEING SCI TECH
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