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Chitosan durable antibiotic tidying method for Cashmere (wool) fabric

An antibacterial finishing, chitosan technology, applied in fiber processing, animal fibers, textiles and papermaking, etc., can solve the problems of lack of washing resistance, poor durability, etc., achieve simple and easy processing technology, improve antibacterial durability, The effect of improving washability

Inactive Publication Date: 2008-04-09
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method solves the hand feeling problem, it has poor durability
[0006] Chitosan is a polymer compound. If only chitosan is used to treat cashmere fabric, chitosan is only attached to the surface of cashmere fabric by intermolecular forces (such as van der Waals force, hydrogen bond), so it lacks washability.

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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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] Material: pure cashmere underwear

[0033] Fiber ratio: cashmere 93%, wool 4%, tencel 3%

[0034] Chitosan degradation solution: commercially available, 3% solid content, viscosity is 5cps; usage is 10% (to fabric weight)

[0035] Cross-linking agent: epichlorohydrin, the usage amount is 0.5% (to the weight of the treatment liquid)

[0036] Alkaline agent: 0.5% NaOH

[0037] (1) Washing process

[0038] Dipping method

[0039] Fabric impregnation→washing (wool detergent 20g / L, 40°C, 5min)→dehydration

[0040] (2) Finishing process

[0041] Washed fabric → chitosan degradation solution (use amount is 10% of the weight of the fabric) + epichlorohydrin (use amount is 0.5% of the weight of the treatment liquid) → dipping or padding → alkali washing and curing (0.5% NaOH , room temperature, 15min)→acid neutralization (1% acetic acid, room temperature, 10min)→drying (80℃, 10min)

[0042] 2. Indicator detection

[0043] The fabrics treated by the above process are entr...

example 2

[0057] Materials used: cashmere blend underwear

[0058] Fiber ratio: cashmere 50%, cotton 30%, tencel 20%

[0059] Chitosan degradation solution: commercially available, 3% solid content, viscosity is 5cps, usage is 15% (to fabric weight)

[0060] Cross-linking agent: epichlorohydrin, the usage amount is 0.25% (to the weight of the treatment liquid)

[0061] Alkaline agent: 0.5% NaOH

[0062] (1) Washing process

[0063] Dipping method

[0064] Fabric impregnation→washing (wool detergent 20g / L, 40°C, 5min)→dehydration

[0065] (2) Finishing process

[0066] Washed fabric → chitosan degradation solution (use amount is 15% of fabric weight) + epichlorohydrin (use amount is 0.25% of treatment liquid weight) → dipping or padding → alkali curing (0.5% NaOH, Normal temperature, 15min) → acid neutralization (1% acetic acid, normal temperature, 10min) → drying (80°C, 10min)

[0067] 2. Indicator detection

[0068] The fabrics treated by the above process are commissioned to b...

example 3

[0082] Materials used: cashmere blend underwear

[0083] Fiber ratio: cashmere 50%, cotton 30%, tencel 20%

[0084] Chitosan degradation solution: commercially available, 3% solid content, viscosity is 5cps, usage is 10% (to fabric weight)

[0085] Cross-linking agent: epichlorohydrin, the usage amount is 0.25% (to the weight of the treatment liquid)

[0086] Alkaline agent: 0.25% NaOH

[0087] (1) Washing process

[0088] Dipping method

[0089] Fabric impregnation→washing (wool detergent 20g / L, 40°C, 5min)→dehydration

[0090] (2) Finishing process

[0091] Washed fabric → chitosan degradation solution (use amount is 10% of the weight of the fabric) + epichlorohydrin (use amount is 0.25% of the weight of the treatment liquid) → dipping or padding → alkali curing (0.25% NaOH, Normal temperature×15min)→acid neutralization (0.5% acetic acid, normal temperature×10min)→drying (80℃×10min)

[0092] 2. Indicator detection

[0093] The fabrics treated by the above process are...

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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Abstract

A chitosan anti-bacterium finishing method of cashmere and wool fabric is a finishing method that uses the chitosan with low molecular weight as a finishing agent, epoxy chloropropane as a cross linker, lye as a curing agent, acetic liquor as a neutralizing agent, and goes through washing wool fabric, finishing (chitosan degradation liquor: MW 2000 to 10000 g / mol, 3 to 30cps, dosage: 5 to 20 percent of the weight of fabric; the cross linker is made from epoxy chloropropane, of which the dosage: is 0.05 to 0.50 percent of the chitosan finishing agent), through steps of washing of lye (0.1 to 1 percent of NaOH liquor), neutralization (0.5 to 2 percent of acetum) and drying (10 to 20 min under 70 to 90 DEG C). The fabric has good antibacterium property and after 50 times of washing, the bacteriostasis ratios are that: golden brown staphylococcus is 93.2 to 99.9 percent; colon bacillus is 72.4 to 92.4 percent; Candida albicans is 86.3 to 99.8 percent, moreover, the fabric is washable and has good fastness which can reach Grade four after 5o times of washing.

Description

technical field [0001] The invention relates to the technical field of textile post-finishing, and belongs to a finishing agent made of natural polymer compounds and derivatives thereof, in particular to a finishing agent and a finishing technology for textiles made of polysaccharide compounds. Background technique [0002] Cashmere mainly refers to cashmere. As a natural fiber, it has soft hand feeling, firm texture, high elasticity, natural and soft luster, good hygroscopicity, warmth retention, wrinkle resistance and stain resistance. It is called the "soft gold" of wool. ". It is suitable for all kinds of high-end underwear and outerwear, and is deeply loved by consumers. But it also has many unsatisfactory places, such as easy to shrink, easy to breed bacteria, easy to dye unevenly, etc. At present, people are looking for various ways to improve the shortcomings of wool, among which chitosan as a green and pollution-free finishing agent has attracted widespread attent...

Claims

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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Application Information

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IPC IPC(8): D06M15/03D06M101/10
Inventor 崔永珠
Owner DALIAN POLYTECHNIC UNIVERSITY
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