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Method for measuring content of chitosan fibers contained in textile

A technology for chitosan fibers and textiles, which is applied in the field of chitosan fiber content in textiles to achieve the effects of high sensitivity, rapid determination and small error

Active Publication Date: 2010-09-15
HISMER BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no method for accurately determining the content of active ingredient chitosan in functional textiles prepared with chitosan.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1: Weigh 1g of chitosan fiber-containing textile with constant weight with an electronic balance of 1 / 10,000. The ratio of chitosan fiber / Newdale viscose / cotton is 10 / 30 / 60. The deacetylation degree (deacetylation degree, abbreviated as D·D) of polysaccharide fiber is 93%, it is shredded and placed in a 100ml Erlenmeyer flask, and then 100ml of 1% acetic acid solution is added to dissolve the chitosan in the textile to be tested. fiber;

[0037] As the optimization of this step, in the dissolution process, it is best to stir the textile to be tested for 4 hours, and then let it stand for 0.5 hour, so that the chitosan fiber in the textile to be tested can be fully dissolved in the acetic acid solution.

[0038] Step 2: Use an electronic balance of 1 / 10,000 to accurately weigh 5g of the solution to be used in step 1 and put it into a 150ml Erlenmeyer flask, then add 50ml of deionized water, and then add 2-3 drops of toluidine blue indicator for use ; The toluidine ...

Embodiment 2

[0049]Step 1: Weigh 0.6g of chitosan fiber-containing textile with a constant weight of 1 / 10,000 electronic balance, the ratio of chitosan fiber / cotton is 15 / 85, the deacetylation degree of chitosan fiber (deacetylationdegree, abbreviated as D·D is 93%, it is shredded and placed in the conical flask of 100ml, then adds 1% acetic acid solution 100ml to dissolve the chitosan fiber in the textile to be tested;

[0050] It is best to stir the textiles to be tested for 4 hours, and then let it stand for 0.5 hours, so that the chitosan fibers in the textiles to be tested can be more fully dissolved;

[0051] Step 2: Use an electronic balance of 1 / 10,000 to accurately weigh 5g of the solution to be used in step 1 and put it into a 150ml Erlenmeyer flask, then add 50ml of deionized water, and then add 2-3 drops of toluidine blue indicator for use , the toluidine blue is produced by Shanghai Sinopharm Group Reagent Co., Ltd., Shanghai Test Brand, the concentration of the toluidine blue...

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PUM

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Abstract

The invention provides a method for measuring the content of chitosan fibers contained in textiles in a formula way. The content of the chitosan fibers contained in the textiles is calculated according the following formula: W1=C*f*(V1-V2)*0.001*161.15*100 / W3W2=C*f*(V1-V2)*0.001*203.19*100 / W3*(1-D.D) / D.Dg=(W1+W2) / W*100%. The test method has very small error and establishes the method which has high sensitivity and is used for simply, conveniently and fast measuring the content of the chitosan fibers contained in the textiles.

Description

technical field [0001] The invention relates to a chitosan fiber content method, in particular to a method for chitosan fiber content in textiles. Background technique [0002] Chitosan (Chitosan) is the only positively charged polymer in nature. In recent years, it has been more and more widely used in chemical industry, environmental protection, food, medicine, cosmetics, agriculture and so on. Because chitosan has a strong antibacterial effect and hemostatic function. At present, it is being gradually applied to textiles such as underwear and socks. However, there is no method for accurately determining the content of active ingredient chitosan in functional textiles prepared with chitosan. Therefore, how to determine the content of chitosan fiber in textiles is a problem that needs to be solved, and it is also a bottleneck restriction for our national quality supervision department to supervise chitosan fiber-containing textiles. It has always restricted the developmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/79G01N21/83
CPCG01N21/79G06F19/70G01N31/16Y10T436/143333G16C99/00G01N21/83
Inventor 周家村胡广敏
Owner HISMER BIO TECH
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