Stripping agent of indigo dyed pure cotton jean and stripping method thereof

A technology for denim and color stripping agent, applied in dyeing method, textile and papermaking, etc., can solve the problems of damage to cotton fiber performance, high contamination rate of stripping liquid, environmental pollution of waste liquid, etc., achieving good environmental protection, stripping good color effect

Active Publication Date: 2012-10-24
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, people usually use oxidation method for stripping denim, using strong oxidants such as sodium hypochlorite, potassium permanganate, etc. to oxidize and destroy indigo molecules to decolorize, resulting in high contamination rate of stripping liquid and waste liquid discharge. There is a problem of serious environmental pollution, and at the same time, the performance of cotton fibers is seriously damaged, which has a certain imp

Method used

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  • Stripping agent of indigo dyed pure cotton jean and stripping method thereof
  • Stripping agent of indigo dyed pure cotton jean and stripping method thereof
  • Stripping agent of indigo dyed pure cotton jean and stripping method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] 1. Experimental objects and auxiliaries

[0035] The fabric is indigo-dyed cotton denim.

[0036] Component description (mass percentage) of stripping agent:

[0037] Penetrant 5-10%

[0038] Dispersant 20-25%

[0039] water balance

[0040] 100%.

[0041] The penetrating agent is alkylbenzene sulfonate, which can also be replaced by aliphatic hydrocarbon and olefin sulfonate, fatty alcohol and fatty alcohol ether sulfate, fatty alcohol and fatty alcohol polyoxyethylene ether phosphate, and the same effect can also be obtained.

[0042] The dispersant is polyethylene glycol, which can also be replaced by polyether-type nonionic surfactants, polyvinylpyrrolidone, polyvinyl alcohol, and polyacrylic acid, and the same effect can also be obtained.

[0043] 2. Stripping process

[0044] The process prescription is as follows:

[0045] Hydrosulfite 4-5g / L

[0046] Caustic soda (100%) 2-3 g / L

[0047] Pingping plus O 3-5 g / L

[0048] Stri...

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Abstract

The invention discloses a stripping agent of indigo dyed pure cotton jean and a stripping method of the stripping agent, belonging to the technical field of jean stripping, wherein the stripping agent comprises following components by weight: 5-10% of a penetrating agent, 20-25% of a dispersant and the balance of water; the penetrating agent is an anionic surfactant; and the dispersant is any one of polyethylene glycol, polyether nonionic surfactant, polyvinylpyrrolidone, polyvinyl alcohol and polyacrylic acid. The stripping agent and the stripping method disclosed by the invention have good stripping effect and excellent environment protection performance, and are suitable for large-scale promotion in industrial application.

Description

Technical field: [0001] The invention relates to the technical field of denim stripping, in particular to an indigo-dyed pure cotton denim stripping agent and a stripping method. Background technique: [0002] my country's annual consumption of cotton, wool, silk, hemp and other natural fibers is quite huge. According to statistics, my country's textile industry consumes 45 million tons of cotton, hemp, chemical fiber and other textile fiber raw materials every year; at the same time, according to experts' estimates, the total amount of textile scraps and household waste produced in the production process exceeds 22 million tons every year. The comprehensive utilization of waste textiles can not only save land and reduce environmental pollution, but also supplement the raw material supply of my country's textile industry. [0003] With the increasing production and consumption, a large amount of waste textiles has grown "geometrically". The recycling of waste textiles n...

Claims

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Application Information

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IPC IPC(8): D06P5/04D06P5/08D06P5/15
Inventor 钱红飞
Owner SHAOXING UNIVERSITY
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