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Chitosan modified nylon fabric and manufacturing method thereof

A chitosan modification and manufacturing method technology, applied in textiles, papermaking, fiber processing and other directions, can solve problems such as difficulty in modification and finishing, and achieve the effects of being beneficial to dyeing, improving fabric properties, and simple and easy to implement.

Inactive Publication Date: 2013-01-16
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Modification of nylon with chitosan can also endow nylon with special properties of chitosan, but modification and finishing is relatively difficult, and there are few reports in China

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

Embodiment 1

[0030] Weigh 1 portion of nylon fabric and dip it in 2mmol / L potassium persulfate solution, bath ratio 1:20, heat in 50°C water bath for 150min, and keep stirring; add chitosan to 1% glacial acetic acid aqueous solution, stir to dissolve A saturated solution is formed; a certain amount of potassium persulfate is weighed and added to the above-mentioned saturated chitosan solution, stirred and mixed so that the concentration of potassium persulfate in the saturated solution is 2 mmol / L, and heated in a water bath at 40° C. for 90 minutes. Pour the above-mentioned chitosan mixture into the oxidant solution for dipping the nylon fabric, the volume of the added chitosan mixture is 0.5 times the volume of the nylon oxidant solution, heat in a water bath at 50°C for 250min, and keep stirring. After the reaction is completed, soap the finished nylon fabric and dry it.

Embodiment 2

[0032] Weigh 1 portion of nylon fabric and dip it in 50 mmol / L hydrogen peroxide aqueous solution, bath ratio 1:40, heat in 30°C water bath for 60 minutes, and keep stirring; add chitosan to 3% glacial acetic acid aqueous solution, stir to make it Dissolve to form a saturated solution; weigh a certain amount of potassium persulfate and add it to the above saturated chitosan solution, stir and mix until the concentration of potassium persulfate in the saturated solution is 5 mmol / L, heat in a water bath at 55°C for 150min. Pour the above-mentioned chitosan mixture into the oxidant solution for dipping the nylon fabric, the volume of the added chitosan mixture is twice the volume of the nylon oxidant solution, heat in a water bath at 30° C. for 300 min, and keep stirring. After the reaction is completed, soap the finished nylon fabric and dry it.

Embodiment 3

[0034] Weigh 1 portion of nylon fabric and dip it in 10mmol / L sodium perborate solution, bath ratio 1:10, heat in 40°C water bath for 200min, and keep stirring; add chitosan to 6% glacial acetic acid aqueous solution, stir to dissolve A saturated solution is formed; a certain amount of potassium persulfate is weighed and added to the above-mentioned saturated chitosan solution, stirred and mixed so that the concentration of potassium persulfate in the saturated solution is 3 mmol / L, and heated in a water bath at 60° C. for 60 min. Pour the above-mentioned chitosan mixture into the oxidant solution for dipping the nylon fabric, the volume of the added chitosan mixture is 3 times the volume of the nylon oxidant solution, heat in a water bath at 40°C for 200min, and keep stirring. After the reaction is completed, soap the finished nylon fabric and dry it.

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 chitosan modified nylon fabric, which is grafted with 0.1 to 0.2 mass percent of chitosan. The invention also discloses the manufacturing method of the fabric, which comprises: (1) weighing nylon fabric and immersing the nylon fabric in nylon oxidant aqueous solution, heating in a water bath according to a bath ratio ranging from 1:10 to 1:40, and stirring; (2) dissolving the chitosan in 1 to 6 percent of glacial acetic acid, stirring to dissolve the glacial acetic acid to form saturated solution of the glacial acetic acid; (3) weighing chitosan oxidant and adding the chitosan oxidant into the saturated solution of the chitosan prepared in the step (2), stirring uniformly and heating in a water bath; (4) adding the chitosan mixed solution obtained by the step (3)into the nylon oxidant aqueous solution in which the nylon fabric is immersed, heating in a water bath and stirring, wherein the added volume of the chitosan mixed solution is 0.5 to 3 times that of nylon oxidant aqueous solution; and (5) taking finished nylon fabric, washing with a soap, and drying in the air. The modified nylon fabric is smoother and has the effects of inhibiting bacteria, resisting static electricity and the like. The method discloses by the invention is simple, easy to implement and low in cost.

Description

technical field [0001] The invention relates to a modified nylon fabric, in particular to a chitosan modified and finished nylon fabric and a manufacturing method thereof. Background technique [0002] It is known in the art that the fabrics modified by chitosan mainly include cotton fabrics, because chitosan is a polysaccharide with a large number of hydroxyl groups and amino groups, similar to the cellulose components of cotton fibers, and the two are easily combined. Nylon has no hydroxyl group and only has amide bonds, so it is difficult to combine with chitosan, so it can only rely on chemical reactions to allow chitosan to graft onto nylon fibers. [0003] There are many varieties of nylon, including nylon 6, nylon 66, nylon 11, and nylon 610, the most important of which are nylon 66 and nylon 6. The properties of various nylons are not exactly the same. The common feature is that there are amide chains on the main chain of the macromolecules, which can absorb water m...

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 Patents(China)
IPC IPC(8): D06M15/03D06M11/50D06M11/82D06M101/34
Inventor 石振东
Owner WUYI UNIV
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