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Anti-back-staining agent used in jeans enzyme washing

A technology of anti-return staining agent and clothing enzyme, which is applied in dyeing, textile and papermaking, fiber treatment, etc., can solve the problem that the effect of anti-return staining agent cannot meet the requirements, reduce the activity of cellulase, and unfavorable enzyme washing effect and other problems, to achieve excellent adsorption and dispersion, good wetting and penetration performance, and promote the effect of promotion

Inactive Publication Date: 2012-03-28
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Studies have shown that some surfactants and dye dispersants can disperse indigo dye into the water phase and play a certain role in preventing restaining, but most anionic surfactants are effective enzyme denaturants and will reduce cellulose The activity of enzymes is not conducive to the effect of enzyme washing; cationic surfactants may also form complexes with proteins, and protein inactivation will also occur at high concentrations
Therefore, the use effect of conventional surfactants and dye dispersants as anti-staining agents for enzyme washing of denim garments cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The anti-restaining agent 1 formula for enzyme washing of denim garments is composed as follows by mass percentage:

[0024] Alkaline hydrolyzate of styrene / maleic anhydride copolymer 18%,

[0025] Polyvinylpyrrolidone K-30 7%,

[0026] Aliphatic amine polyoxyethylene ether 1815 4%,

[0027] Fatty alcohol polyoxyethylene ether AEO9 8%,

[0028] The rest is water.

[0029] The alkali hydrolyzate structural formula of used styrene / maleic anhydride copolymer is as follows:

[0030] , the molecular weight is 10800, where: m:n is 2.9:1.

[0031] The used polyvinylpyrrolidone K-30, fatty amine polyoxyethylene ether T15 and fatty alcohol polyoxyethylene ether AEO9 are commercially available conventional industrial products.

Embodiment 2

[0033] The anti-restaining agent 2 formula for enzymatic washing of denim garments is composed as follows by mass percentage:

[0034] Alkaline hydrolyzate of styrene / maleic anhydride copolymer 23%,

[0035] Polyvinylpyrrolidone K-30 3%,

[0036] Aliphatic amine polyoxyethylene ether 1825 6%,

[0037] Fatty alcohol polyoxyethylene ether AEO7 8%,

[0038] The rest is water.

[0039] The alkali hydrolyzate structural formula of used styrene / maleic anhydride copolymer is as follows:

[0040] , the molecular weight is 12500, where: m:n is 4.3:1.

[0041] The used polyvinylpyrrolidone K-30, fatty amine polyoxyethylene ether T20 and fatty alcohol polyoxyethylene ether AEO7 are commercially available conventional industrial products.

[0042] The anti-restaining agent provided by the invention is used in the washing process of denim with acid cellulase. The process conditions are acid cellulase dosage 2% (o.w.f.), enzyme wash solution pH 5.1, anti-restaining agent 1g / L, bath ...

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Abstract

The invention relates to an assistant for textile dyeing and finishing and discloses an anti-back-staining agent used in jeans enzyme washing. The agent comprises 10-35% of alkaline hydrolysate of styrene / maleic anhydride copolymer, 2-10% of polyvinylpyrrolidone, 2-10% of fatty amine polyoxyethylene ether, 5-25% of fatty alcohol polyoxyethylene ether and the balance of water by mass. The agent has the following advantages: the alkaline hydrolysate of the polymer surfactant styrene / maleic anhydride copolymer is adopted as the main component of the anti-back-staining agent, has excellent effects on adsorbing and dispersing insoluble indigo and can better disperse the dyes generated by enzyme washing in washing liquid, thus achieving the anti-back-staining effect; after the alkaline hydrolysate is compounded with other surfactants, the anti-back-staining effect can be further improved; and the anti-back-staining agent provided by the invention does not have obvious influence on the activity of cellulase, does not reduce the enzyme washing effect, has better biodegradability and is beneficial to environmental protection.

Description

technical field [0001] The invention relates to a surfactant used for dyeing and finishing of textiles, in particular to an anti-staining agent for enzyme washing of denim garments, belonging to the technical fields of textile printing and dyeing and fine chemicals. Background technique [0002] Denim clothing is favored by consumers for its unique wearing performance and distressed appearance. In recent years, denim clothing has been loved by people of all ages for its unique charm of durability, crispness and comfort. Denim usually undergoes stonewashing and washing to remove part of the indigo dye, giving denim clothing different styles and meeting people's individual requirements. In the early days, the industry mainly used the stone milling process to remove the dye on the surface of the fiber, that is, a certain amount of pumice, a small amount of stripping agent and detergent were used together for washing in a drum washing machine. The rubbing effect between the pu...

Claims

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Application Information

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IPC IPC(8): D06P5/15D06M15/233D06M15/356D06M15/53C12S11/00
Inventor 王祥荣杨颖
Owner SUZHOU UNIV
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