Method for dyeing chitosan fabrics with reactive dyes

A technology of reactive dyes and chitosan, applied in the field of textile dyeing and finishing, can solve the problem of high loss of chitosan content, and achieve the effects of less loss of chitosan content, reduced loss of chitosan and good levelness.

Active Publication Date: 2011-08-17
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

[0008] The object of the present invention is to overcome above-mentioned weak point, provide a kind of method that dyes chitosan fabric with reactive dyestuff, to solve chitosan content loss high in the process of existing method for dyeing chitosan fabric with reactive dyestuff technical issues

Method used

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  • Method for dyeing chitosan fabrics with reactive dyes

Examples

Experimental program
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Effect test

Embodiment 1

[0063] The chitosan lining used in the present embodiment is the single jersey fabric containing chitosan 11.4wt%, Newdal (Newdal) 57wt%, combed cotton 26.6wt% and 5wt% Lycra (LYCRA); Used chitosan The weight of the fabric is 30kg, and the reactive dye used is a nicotinic acid-s-triazine reactive dye. In this embodiment, chitosan fabrics are dyed into water green with reactive dyes.

[0064] In the present embodiment, the used raw materials and consumption of each operation, specific steps and parameters are as follows:

[0065] a) Oxygen bleaching process: place the chitosan fabric in an oxygen bleaching solution with a pH value of 10, with a bath ratio of 1:15, keep it warm for 60 minutes at a temperature of 85°C, and then cool down to below 60°C to discharge the oxygen bleaching solution , washing the chitosan fabric until the pH value of the residual liquid is 7.2; the oxygen bleaching solution contains scouring agent DHA-150, softener Yuzhongbao C, sodium hydroxide, 27% ...

Embodiment 2

[0071] The used chitosan lining of the present embodiment is to contain chitosan 9.5wt%, modal (Modal) 57wt%, combed cotton 28.5wt% and 5wt% Lycra semi-pearl mesh cloth fabric; Used chitosan fabric weight is 30kg; the reactive dye used is bis-nicotinic acid-s-triazine reactive dye. In this embodiment, chitosan fabrics are dyed light purple with reactive dyes.

[0072] In the present embodiment, the used raw materials and consumption of each operation, specific steps and parameters are as follows:

[0073] a) Oxygen bleaching process: place the chitosan fabric in an oxygen bleaching solution with a pH value of 13.5, with a bath ratio of 1:15, at a temperature of 98°C, keep warm for 30 minutes, and then cool down to below 60°C to discharge the oxygen bleaching solution , wash the chitosan fabric until the pH value of the residual liquid is 8.3; the oxygen bleaching solution contains scouring agent THR-203, softener FB-200, sodium hydroxide, 27% hydrogen peroxide, hydrogen perox...

Embodiment 3

[0079] The chitosan fabric used in the present embodiment is the double-sided fabric fabric containing chitosan 11.8wt%, hemp Saier (Jutecell) 48wt%, combed cotton 35.2wt% and 5wt% Lycra; Used chitosan fabric weight It is 30kg; the reactive dye used is a nicotinic acid-s-triazine reactive dye. In this embodiment, the chitosan fabric is dyed into washing blue with reactive dyes.

[0080] In the present embodiment, the used raw materials and consumption of each operation, specific steps and parameters are as follows:

[0081] a) Oxygen bleaching process: place the chitosan fabric in an oxygen bleaching solution with a pH value of 12, the liquor ratio is 1:15, keep the temperature at 90°C for 45 minutes, then cool down to below 60°C to discharge the oxygen bleaching solution , washing the chitosan fabric until the pH value of the residual liquid is 7.6; the oxygen bleaching solution contains scouring agent C-320, softener ES, sodium hydroxide, 27% hydrogen peroxide, hydrogen per...

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Abstract

The invention discloses a method for dyeing chitosan fabrics with reactive dyes, belonging to the technical field of textiles. The method comprises the following procedures in sequence: a) oxygen bleaching procedure; b) dyeing procedure; c) fixation procedure; and d) post-treatment procedure, wherein the oxygen bleaching procedure is carried out in the oxygen bleaching solution with pH value being 10.0-13.5; the dyeing procedure is carried out in the alkaline environment with pH value being 7.0-8.5; and the reactive dyes are the reactive dyes with reactive substituents being niacin groups. The method has the following advantages: the method is used for dyeing chitosan fabrics; the loss of chitosan is within 20% in the production process; and the obtained chitosan fabrics have good moisture absorption, softness, skin affinity and antibacterial deodorization property.

Description

technical field [0001] The invention relates to a method for dyeing chitosan fabrics with reactive dyes, and belongs to the technical field of textile dyeing and finishing. Background technique [0002] Chitosan (chitosan, CTS) is the product of chitin (chitin) after deacetylation treatment, that is, deacetylated chitin, scientific name polyglucosamine, also known as soluble chitin, chemical name is (1,4) poly -2-Amino-2-deoxy-β-D-glucan, also known as chitosan, is a linear polymer connected by N-acetyl-D-glucosamine monomers through β-1,4-glucosidic bonds Compound, the molecular structural formula is as shown in the following formula: [0003] [0004] Chitosan is a cationic polymer, the only positively charged regenerated fiber in nature, and has considerable biological activity (such as excellent antibacterial, deodorant, moisture absorption, moisturizing and biocompatibility, etc.). Chitosan has good biocompatibility and biodegradability, and the degradation product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/58D06P3/85D06P1/38D06P1/673D06L3/02D06L4/12D06L4/13
Inventor 许畅王俊丽丁晨李峰杨启东黄伟国
Owner 上海嘉麟杰纺织科技有限公司
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