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Method for dyeing chitosan fabric

A dyeing method, chitosan technology, applied in the field of dyeing and finishing, can solve the problems of poor level dyeing, prone to color blooms, etc., and achieve the effects of less content loss, increased uniformity, and reduced loss

Active Publication Date: 2013-01-02
上海嘉麟杰纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical composition of chitosan fiber is similar to that of cellulose fiber, and it can be dyed with the dyes used to dye cellulose fiber. However, the fabrics containing chitosan fiber are dyed by the existing dyeing and finishing process, which has poor level dyeing and is prone to color blooms. and other quality issues

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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  • Method for dyeing chitosan fabric

Examples

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Embodiment 1

[0039] A chitosan fiber blended fabric, woven from chitosan 9.7% / Newdale 56.9% / combed cotton 28.4% blended yarn and Lycra 5% (both by weight), in a jet dyeing machine , the method for dyeing it includes the following steps:

[0040] 1) Scouring process: inject 300 liters of industrial soft water into the dyeing machine, first add scouring agent DXA-150450g, softener 300g, defoamer DM-8301260g, then add 450g of 30wt% sodium hydroxide solution to make the liquid in the dyeing machine The pH value of the chitosan fabric is 10.8-11.5, put 20000g of chitosan fabric into the dyeing machine for scouring, circulate for 10 minutes, then heat up to 90 ℃, keep warm for 50 minutes and then cool down, and the temperature drops below 60 ℃ to discharge the liquid in the dyeing machine , and then washed with water until the pH of the solution is 8.3 to 7.2;

[0041] The washing process includes the first washing, 300 liters of water is injected into the dyeing machine, the washing temperatur...

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 discloses a method for dyeing a chitosan fabric, which comprises a refining process, a dyeing process, soaping process and a color fixing process, wherein the refining process is performed in refining solution of which the pH value is 10.0 to 13.5; and the dyeing process is performed in an alkaline environment with a pH value of 7.8 to 11.5. The chitosan fabric treated by the dyeingmethod of the invention can keep the loss of the chitosan within 20 percent, and the dyed chitosan fabric has high hygroscopicity, softness, skin affinity and antibacterial and deodorizing performance.

Description

technical field [0001] The invention relates to the field of dyeing and finishing, in particular to a method for dyeing fabrics. Background technique [0002] Chitosan (CTS) is the product of deacetylation of chitin, namely deacetylated chitin, scientific name polyglucosamine, also known as soluble chitin, chemical name is (1,4) poly -2-Amino-2-deoxy-β-D-glucan, alias chitosan, is a straight-chain polymer linked by N-acetyl-D-glucosamine monomers through β-1,4-glycosidic bonds Compound, the molecular structure is shown in the following formula: [0003] [0004] Chitosan is a cationic polymer, the only positively charged regenerated fiber in nature, and has considerable biological activities (such as excellent antibacterial, deodorant, moisture absorption, moisturizing and biocompatibility, etc.). Chitosan has good biocompatibility and biodegradability, and the degradation products generally have no toxic and side effects to the human body, do not accumulate in the body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/58D06P3/85D06P1/673D06P5/10
Inventor 王俊丽黄伟国许畅杨启东董蓓丁晨李峰
Owner 上海嘉麟杰纺织科技有限公司
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