Washing method capable of improving textile color fastness

A washing method and textile technology, applied in textiles and papermaking, dyeing, dry-cleaning fiber products, etc., can solve the problems of cumbersome methods, shortened washing time, and large water consumption in restrictive washing processes, and achieve good adsorption and high concentration Effect

Active Publication Date: 2013-12-25
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantage is that this method is relatively cumbersome and has certain limitations and does not fundamentally solve the problem of large water consumption in the washing process.
Although this method adopts the solvent water system to wash the pretreated cotton fabric after dyeing, it has indeed played a role in shortening the washing time and saving water, but its disadvantage is that this only uses the solvent water system in the last step of washing, and does not Does not use a solvent-water system throughout the wash and does not minimize the amount of water used throughout the wash

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

[0030] According to the above process steps: select 5g of cotton textiles after dyeing as the textiles to be washed. Put the acid in the mixed solution of ethanol and water, stir it evenly, prepare pickling solution, then put the dyed cotton fabric in the pickling solution for pickling, wherein the bath ratio of the pickling solution is 1:10 , the volume ratio of ethanol to water is 98%:2%, the concentration of the pickling reagent is 5g / L, the pH of the pickling solution is 3, the pickling temperature is 30°C, and the pickling time is 1min. First mix ethanol and water evenly to prepare a solvent washing solution, then place the pickled cotton textiles in the solvent washing solution for water washing, wherein the bath ratio of the solvent washing solution is 1:50, the volume of ethanol and water The ratio is 98%:2%, the solvent washing temperature is 30°C, and the solvent washing time is 3min. First put the soaping agent in the mixed solution of ethanol and water, stir it ev...

Embodiment 2

[0035] According to the above process steps: select 5g of hemp textiles after dip-dying as the textiles to be washed. Put the acid in the mixed solution of isopropanol and water, mix it evenly, and then prepare the pickling solution, then place the pad-dyed hemp textiles in the pickling solution for pickling, wherein the bath ratio of the pickling solution is 1:20, the volume ratio of isopropanol to water is 90%:10%, the acid concentration is 2g / L, the pH of the pickling solution is 5, the pickling temperature is 50°C, and the pickling time is 1min. First mix isopropanol and water evenly to prepare a solvent washing solution, then place the pickled hemp textiles in the solvent washing solution for water washing, wherein the bath ratio of the solvent washing solution is 1:20, isopropanol and The volume ratio of water is 90%:10%, the solvent washing temperature is 30°C, and the solvent washing time is 1min; the soaping agent is placed in the mixed solution of isopropanol and wat...

Embodiment 3

[0040] According to the above process steps: select 5g of cotton textiles after dyeing as the textiles to be washed. Mix isopropanol with water, stir evenly, prepare pickling solution, then place the dyed cotton textiles in the pickling solution for pickling, wherein, the bath ratio of the pickling solution is 1:50, isopropanol and The volume ratio of water is 90%:10%, the pH of the pickling solution is 7, the pickling temperature is 50°C, and the pickling time is 1min; first mix isopropanol and water evenly to prepare a solvent washing solution, and then The textiles after pickling are washed in a solvent washing solution, wherein the bath ratio of the solvent washing solution is 1:50, the volume ratio of isopropanol to water is 90%:10%, the solvent washing temperature is 30°C, and the solvent The washing time is 1min; first put the soaping agent in the mixed solution of isopropanol and water, stir it evenly and prepare it into a soaping solution, then place the cotton textil...

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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PUM

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Abstract

The invention relates to a washing method capable of improving textile color fastness and belongs to the technical field of textile printing, dyeing and finishing. According to the washing method, the preparation of washing liquids in a washing technology of a dyed textile is changed, and in the whole washing step, the textile is washed sequentially by an acid washing liquid, a solvent washing liquid, a soap washing liquid and a neutralization acid washing liquid, wherein each washing liquid is formed by mixing a high-proportion alcohol-type organic solvent, a small amount of water and a washing reagent, so that the problems of low textile color fastness and large water amount of a conventional pure water washing technology are solved. The washing method is capable of not only enhancing the color fastness, the brightness and the softness of the textile, but also greatly reducing the use amounts of water and washing reagents, the washing time is shorter, the production cost is reduced and the economic benefit is enhanced; besides, the pollution to environment can be greatly lowered by recycling the alcohol-type organic solvents, so that the washing method is safe, energy-saving, economical and environment-friendly and has remarkable social and economic benefits.

Description

technical field [0001] The invention relates to a washing method for improving the color fastness of textiles, which belongs to the field of textile printing and dyeing processing. Background technique [0002] Reactive dyes should be washed with water after dyeing textiles to remove unfixed dyes, chemicals and various impurities on the textiles, and improve the color fastness, vividness, feel and other wearable properties of dyed products. [0003] Due to the side reaction of dyes and water in the dye bath, the dyed fabric directly carries a large amount of dyes that are not chemically bonded to the cellulose fibers. Most of these dyes remain in the aqueous solution of the capillary network outside the textile fibers, and some Distributed in the network of pores in the fiber. The substances that should be washed off after dyeing are mainly unfixed dyes and hydrolyzed dyes. These unfixed dyes reduce the color fastness level, so they must be washed off thoroughly. [0004] ...

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): D06P5/04D06P3/66D06L1/08D06L1/16
Inventor 徐卫林夏良君
Owner WUHAN TEXTILE UNIV
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