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Process for preparing poly modified chitosan anti-bacteria wet keeping finishing agent

A technology of chitosan and finishing agent, applied in fiber processing, textiles and papermaking, etc., can solve the problems of no antibacterial properties, aldehyde pollution, no moisture retention, etc.

Inactive Publication Date: 2007-06-27
青岛通力达科技开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: first, there is aldehyde pollution, not green textiles; second, the antibacterial properties of chitosan are greatly affected by pH, and basically have no antibacterial properties under neutral conditions; third, there is no moisture retention, and the function is single and popularized low value
Although these two methods have utilized the antibacterial properties of silver, they have the defects of silver discoloration, poor durability and single function.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Formula: chitosan, dosage 5%; sodium pyrrolidone carboxylate, dosage 7%; silver acetate (CH 3 COOAg), the dosage is 2.4%; softener, 5%; water, the balance; all are by weight.

[0017] Preparation process: firstly, chitosan is prepared into 8% acid solution, and the cosolvent is inorganic acid or organic acid. Silver acetate (CH 3 COOAg), react for 30 to 60 minutes, then add sodium pyrrolidone carboxylate and react for 60 minutes to obtain a finishing agent mother liquor; finally, add 25% nonionic softener (fatty acid polyoxyethylene ether), continue stirring for 15 minutes, and add water to dilute The antibacterial moisturizing finishing agent for textiles is obtained when the formula content is reached.

[0018] Application process: test fabric, polyester-cotton plain weave; the dosage of antibacterial moisturizing finishing agent is 10% (owf).

[0019] Technological process: polyester-cotton plain weave → two dipping and two rolling (with liquid rate 100%) → hot ai...

example 2

[0021] Formula: chitosan, dosage 3.6%; ammonium pyrrolidone carboxylate, dosage 10.5%; silver nitrate (AgNO 3 ), dosage 2.8%; sodium alginate 7.2%; water, balance.

[0022] Preparation process: firstly, chitosan is prepared into a 7% acid solution, and the cosolvent is an inorganic acid or an organic acid. Silver nitrate (AgNO 3 ), reacted for 50 minutes, then added ammonium pyrrolidone carboxylate and reacted for 70 minutes, and finally added sodium alginate and reacted for 30 to 60 minutes to obtain the finishing agent mother liquor. Finally, adding or not adding softening agent and adhesive as required, and adding water to dilute to formula content to obtain antibacterial moisturizing finishing agent for textiles.

[0023] Application process: test fabric, pure cotton poplin; the dosage of antibacterial moisturizing finishing agent is 10% (owf).

[0024] Technological process: pure cotton poplin cloth → two dipping and two rolling (with liquid rate 100%) → hot air drying...

example 3

[0026] Formula: chitosan, dosage 3.6%; sodium pyrrolidone carboxylate, dosage 10.5%; nitrate (AgNO 3 ) dosage 2.8%; sodium alginate 7.2%; water, balance; all are weight ratios.

[0027] Preparation process: firstly, chitosan is prepared into a 2% acid solution, and the cosolvent is an inorganic acid or an organic acid. Nitrate (AgNO 3 ), react for 70 minutes, then add sodium pyrrolidone carboxylate to react for 55 minutes, and finally add sodium alginate to react for 40 to 60 minutes to obtain finishing agent mother liquor. Finally, softener and adhesive are added or not added as required, and water is added to dilute to formula content to obtain antibacterial moisturizing finishing agent for textiles.

[0028] Application process: test fabric, linen fabric; the dosage of antibacterial moisturizing finishing agent is 5% (owf).

[0029] Technological process: linen fabric → two dips and two rollings (with liquid rate of 100%) → hot air drying (temperature 90 ° C ~ 100 ° C) →...

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Abstract

A multiple elements modified antibacterial humidizing finish for the functional finishing of fabrics is prepared from chitosan and its derivative, Ag salt and pyrrolidone carboxylate through preparing the acidic solution of chitosan, adding A salt, reaction, adding pyrrolidone carboxylate, continuous reacting to obtain mother liquid, adding softening agent, stirring and adding water for diluting.

Description

Technical field: [0001] The invention relates to the formulation and preparation process of a textile finishing agent mainly containing multi-component modified chitosan for producing antibacterial, antibacterial deodorant, antibacterial moisturizing or antibacterial skin care functional textiles, namely a multi-component modified chitosan antibacterial The preparation method of moisturizing agent, its international patent classification number is D06M13 / 000. technical background: [0002] Green consumption promotes the research and development of green functional textiles. The use of marine natural biological materials chitosan, modified chitosan, alginic acid and salts to prepare environment-friendly auxiliaries has opened up a new way for the development of green functional textiles. [0003] In daily life, all kinds of textiles are a good place for microorganisms to survive and reproduce, and are an important source of disease transmission. At the same time, people have...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/03
Inventor 李群
Owner 青岛通力达科技开发有限公司
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