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Method for preparing active dye detergent based on chitosan/gelatin composite material

A technology of composite materials and reactive dyes, which is applied in the field of preparation of reactive dye detergents based on chitosan/gelatin composite materials, can solve the problems of poor biodegradability, low hard water resistance, and large amount of detergents, and achieve easy Biodegradation, steam saving, good adsorption effect

Inactive Publication Date: 2010-08-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of cleaning agent has a large amount of use, a low degree of hard water resistance, and poor biodegradability. Therefore, there is a common problem of polluting the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Preparation of aqueous phase solution: at first dissolving chitosan with a degree of deacetylation of 96% in the acetic acid solution of 2% by volume to obtain a chitosan solution with a mass percent concentration of 0.5%, then dissolving gelatin in water Obtaining a gelatin solution with a mass concentration of 3%;

[0019] By chitosan: gelatin is 1: 1 mass ratio chitosan solution and gelatin solution are mixed to obtain chitosan / gelatin solution;

[0020] 2) Emulsion preparation: add emulsifier to liquid paraffin to obtain a mixed solution of liquid paraffin and emulsifier by volume ratio of emulsifier: liquid paraffin=1:300, said emulsifier is Span 80 and Tween 80, wherein The volume ratio of Span 80 and Tween 80 is 1: 1; then chitosan / gelatin solution is added to the mixed solution of liquid paraffin and emulsifier by the volume ratio of chitosan / gelatin solution: liquid paraffin=1:4 medium, emulsified at 25°C for 25 minutes to obtain an emulsion;

[0021] 3) C...

Embodiment 2

[0024] 1) Preparation of aqueous phase solution: at first dissolving chitosan with a degree of deacetylation of 94% in acetic acid solution of 3% by volume to obtain a chitosan solution with a mass percent concentration of 1%, then dissolving gelatin in water Obtaining a gelatin solution with a mass concentration of 4%;

[0025] By chitosan: gelatin is the mass ratio of 2: 1 that chitosan solution and gelatin solution are mixed to obtain chitosan / gelatin solution;

[0026] 2) Emulsion preparation: add emulsifier to liquid paraffin to obtain a mixed solution of liquid paraffin and emulsifier by volume ratio of emulsifier: liquid paraffin=1:150, said emulsifier is Span 80 and Tween 80, wherein The volume ratio of Span 80 and Tween 80 is 2: 1; then chitosan / gelatin solution is added to the mixed solution of liquid paraffin and emulsifier by the volume ratio of chitosan / gelatin solution: liquid paraffin=1:5 , emulsified at 30°C for 15 minutes to obtain an emulsion;

[0027] 3) C...

Embodiment 3

[0030] 1) Preparation of aqueous phase solution: at first dissolving chitosan with a degree of deacetylation of 92% in acetic acid solution of 4% by volume to obtain a chitosan solution with a mass percentage concentration of 2%, then dissolving gelatin in water Obtaining a gelatin solution with a mass concentration of 6%;

[0031] By chitosan: gelatin is the mass ratio of 3: 1 that chitosan solution and gelatin solution are mixed to obtain chitosan / gelatin solution;

[0032] 2) Emulsion preparation: add emulsifier to liquid paraffin to obtain a mixed solution of liquid paraffin and emulsifier by volume ratio of emulsifier: liquid paraffin=1:200, said emulsifier is Span 80 and Tween 80, wherein The volume ratio of Span 80 and Tween 80 is 4: 1; then chitosan / gelatin solution is added to the mixed solution of liquid paraffin and emulsifier by the volume ratio of chitosan / gelatin solution: liquid paraffin=1:6 medium, emulsified at 28°C for 20 minutes to obtain an emulsion;

[0...

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PUM

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Abstract

The invention discloses a method for preparing active dye detergent based on chitosan / gelatin composite material, which solves the problems of unsatisfactory cleaning effect, impact on environment and the like of the conventional surfactant-based detergent. The method comprises the following steps: aqueous phase solution preparation: dissolving chitosan in acetum to obtain chitosan solution; dissolving gelatin in water to obtain gelatin solution; and then uniformly mixing the chitosan solution and the gelatin solution; emulsion preparation: slowly adding the chitosan solution / gelatin solution into the mixture of liquid paraffin and emulsifier; stirring at normal temperature for emulsification; cross-linking / curing: adding glutaraldehyde solution dropwise in the emulsion and heating gradually to enable cross-linking / curing of microspheres; and post-processing: repeatedly flushing the obtained product by using an organic solvent and then putting the flushed product in an oven to dry to obtain the product.

Description

technical field [0001] The invention relates to a preparation method of a reactive dye cleaning agent, in particular to a preparation method of a reactive dye cleaning agent based on a chitosan / gelatin composite material used in the textile printing and dyeing industry in the cleaning process after reactive dye dyeing. Background technique [0002] Reactive dyes are low in price, bright in color and easy to use, and are widely used in dyeing cellulose fiber fabrics. The disadvantage is that the dye is easily hydrolyzed during the dyeing process, resulting in waste of dye, reduction of color fastness, and increased difficulty in the treatment of wastewater after dyeing. Therefore, during the dyeing and washing process, the reactive dyes that are not firmly bonded to the fiber can be removed through the chemical action between the soaping agent and the dye. [0003] At present, the cleaning agents used to remove floating color on the surface of reactive dyed fabrics in the do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/24C08J3/09C08L5/08C08L89/00D06P5/08
Inventor 王学川贺宝元强涛涛薛海燕
Owner SHAANXI UNIV OF SCI & TECH
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