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Method for improving homochromatism of crust amine fibre and cotton blended dyeing product

A chitosan fiber and cotton blending technology, which is applied in dyeing, fiber treatment, plant fiber, etc., can solve the problems of poor dyeing homochromaticity and achieve the effect of improving quality

Inactive Publication Date: 2009-02-18
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the same color of chitosan fiber and cotton blended dyed products, to overcome the defects of poor chitosan fiber and cotton blended products in the prior art, and to meet the requirements of developing high-quality chitosan fiber and cotton Blended dyed products require the same color technology

Method used

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  • Method for improving homochromatism of crust amine fibre and cotton blended dyeing product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1) The chitosan fiber and cotton blended product is immersed in a chitosan solution with a concentration of 0.2% by weight for 15 minutes. The molecular weight of chitosan is 3000, the degree of deacetylation is greater than 50%, the weight ratio of chitosan fiber and chitosan solution is 1:10, and the dipping temperature is 40°C.

[0013] 2) Dye the dipped chitosan fiber and cotton blended product with reactive violet KN-2R, see the attached drawing for the dyeing process and conditions, and add 0.5% natural sodium alginate by weight of the chitosan fiber and cotton blended product at the same time.

[0014] The same color of chitosan fiber and cotton blended dyeing products is grade 3.

Embodiment 2

[0016] 1) The chitosan fiber and cotton blended product is soaked in 0.5% chitosan solution for 45min. The molecular weight of chitosan is 10000, the degree of deacetylation is greater than 50%, the weight ratio of chitosan fiber and chitosan solution is 1:20, and the impregnation temperature is 60°C.

[0017] 2) Use reactive red violet KN-2R to dye the chitosan fiber and cotton blended product after dipping treatment, the dyeing process and conditions are shown in the attached drawing, and at the same time add 1.0% synthetic tannin by weight of the chitosan fiber and cotton blended product to synthesize Tannin is a condensation product of dihydroxydiphenyl sulfone sulfonate and formaldehyde.

[0018] The same color of chitosan fiber and cotton blended dyeing products is 3.5.

Embodiment 3

[0020] 1) The blended product of chitosan fiber and cotton is soaked in 0.2% cationic modified starch solution for 30 minutes. The cationic modified starch is quaternary ammonium starch ether cationic modified starch, the molecular weight of the cationic modified starch is 2000, and the degree of substitution is 0.05. is 50°C.

[0021] 2) Dye the dipped chitosan fiber and cotton blended product with reactive blue M-2GLN, the dyeing process and conditions are shown in the attached figure, and add 0.5% natural sodium alginate by weight of the chitosan fiber and cotton blended product at the same time.

[0022] The same color of chitosan fiber and cotton blended dyeing products is grade 3.0.

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Abstract

The invention discloses a method for improving the homochromatic properties of chitosan fiber and cotton blended dyed product. The method takes cationic water-soluble polymer to pretreat the chitosan fiber and then adds anionic water-soluble polymer in common dyeing technique to dye the chitosan fiber and the cotton blended dyed product. The method remarkably reduces the coloring difference between the chitosan fiber and the cotton blended product and improves the coloring homochromatic properties of the chitosan fiber and the cotton blended product. The homochromatic properties of the chitosan fiber and the cotton blended dyed product can reach the level of 3 or above. The method fundamentally solves the problem of coloring difference between the chitosan fiber and the cotton blended dyed product (particularly light color products) and improves the quality of the chitosan fiber and the cotton blended dyed product.

Description

technical field [0001] The invention relates to a method for improving the same color of chitosan fiber and cotton blended dyeing products, more specifically, it involves absorbing cotton fiber by cationic water-soluble polymers and adsorbing chitosan fibers by anionic water-soluble polymers to weaken the interaction between chitosan fiber and cotton. The method of reducing the difference in the dyeability of the reactive dyes of the two fibers due to the difference in the chargeability of the fibers. Background technique [0002] Chitosan is the deacetylation product of chitin, and a new type of functional fiber—chitosan fiber can be produced by wet spinning chitosan. Chitosan fiber is the only positively charged regenerated fiber in nature. It has considerable biological activity (such as excellent antibacterial, deodorant and excellent moisture absorption and moisturizing functions), which can help wound healing and effectively protect human skin. At the same time, chito...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/84D06P3/85D06P1/38D06P1/48D06P1/52D06M15/03D06M15/11D06M101/10D06M101/06
Inventor 吴明华戚栋明杨雷董建朋吴玉泉
Owner ZHEJIANG SCI-TECH UNIV