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Preparation method of antibacterial cellulose fabric

A cellulose fabric and cellulose fiber technology, applied in fiber processing, plant fibers, textiles and papermaking, etc., can solve the problems of decreased antibacterial performance, high cost, damage to mechanical properties of fabrics, etc., and achieve durable antibacterial performance and raw material components Less and less cost effective

Inactive Publication Date: 2010-10-27
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of blending the antibacterial agent into the fabric has the advantages of easy operation, but the antibacterial performance of the fabric will decrease during use; while grafting antibacterial monomers on the surface of the fabric has the advantages of simple preparation process and controllable grafting rate. etc., but there are also disadvantages such as high cost, some grafting process will cause damage to the mechanical properties of the fabric due to the addition of peroxide initiators

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

[0020] Put 4.5 grams of refined cotton gray cloth into 50wt% urea aqueous solution and impregnate at 50° C. for 30 minutes. After taking it out, keep the liquid-carrying rate of 157%; then cut the cotton cloth with urea aqueous solution into 6 parts with roughly equal quality, and bake it for different times in a vacuum oven at 142°C. The baking time is respectively: 0.5 hours, 1.5 hours, 2.0 hours, 2.5 hours, 3.0 hours, 4.0 hours. The sample was taken out, washed several times with hot water, soaked and washed twice with methanol, and air-dried in a blast oven at room temperature to constant weight.

[0021] Chlorine bleaching of cotton gray cloth and the titration of its chlorine content: the ammoniated cotton gray cloth was rinsed for 30 minutes in an aqueous sodium hypochlorite solution with a pH value of 10.0 and a concentration of 1.0 wt%, at a temperature of 50° C. and a bath ratio of 50:1. Take out the gray cloth and wash it with a large amount of deionized water unti...

example 2

[0025]Put 4.9 grams of refined cotton gray cloth into 50 wt% aqueous urea solution for immersion pressing at 50° C. for 30 minutes. After taking it out, keep the liquid-carrying rate at 162%; then cut the cotton cloth with urea aqueous solution into 7 parts with equal mass, and at temperatures of 136°C, 137°C, 138°C, 139°C, 140°C, 142°C, 144°C Bake in a blast oven at ℃ for 1 hour. The sample was taken out, washed several times with hot water, soaked and washed twice with methanol, and air-dried in a blast oven at room temperature to constant weight.

[0026] Chlorine bleaching of cotton gray cloth and the titration of its chlorine content: the ammoniated cotton gray cloth was rinsed for 30 minutes in an aqueous sodium hypochlorite solution with a pH value of 10.0 and a concentration of 1.0 wt%, at a temperature of 50° C. and a bath ratio of 50:1. Take out the gray cloth and wash it with a large amount of deionized water until no hypochlorite ion can be detected in the washing...

example 3

[0030] Put 8.2 grams of refined cotton gray cloth into 50 wt% aqueous urea solution for immersion pressing at 50° C. for 60 minutes. After taking it out, keep the liquid-carrying rate at 155%; then bake it in a blast oven with a temperature of 142° C. for 3 hours. The sample was taken out, washed several times with hot water, soaked with methanol, washed twice, and dried in a vacuum oven to constant weight.

[0031] Chlorine bleaching of cotton gray cloth and titration of its chlorine content: cut cotton gray cloth weighing about 0.5 g, and rinse it for 5 minutes, 10 minutes, 20 minutes, and 30 minutes in an aqueous solution of sodium hypochlorite with a pH value of 10.0 and a concentration of 1.0 wt%. Minutes, 40 minutes, rinsing temperature 28 ° C, bath ratio 50:1. Take out the gray cloth and wash it with a large amount of deionized water until no hypochlorite ion can be detected in the washing residue. Dry the bleached gray cloth to constant weight. Adopt starch-potassiu...

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 relates to a preparation method of antibacterial cellulose fabric, belonging to the technical field of fiber fabric modification. The preparation process comprises the following steps of: dipping the fiber fabric with urea solution, and baking for a period of time at 132-170 DEG C to generate carbamic acid ester group on the surface of the fiber fabric; washing in water, rinsing by using hypohalous acid salt water solution, reacting the carbamic acid ester group on the surface of the fiber fabric with hypochlorite to generate N-halamine structure with strong oxidability, therefore, the cellulose fabric has the antibacterial function. The prepared antibacterial fabric has broad spectrum antibacterial function, and sterilized cellulose fabric can obtain the antibacterial function again after rinsing by using the hypohalous acid salt water solution.

Description

technical field [0001] The invention belongs to the technical field of fiber fabric modification, in particular to a preparation method of antibacterial cellulose fabric. Background technique [0002] In recent years, with social progress, economic development and improvement of people's living standards, people pay more and more attention to personal hygiene and health. As the necessities of people's life, fiber textile materials are increasingly valued for their safety and sanitation. In this context, the research on antibacterial fiber fabrics has been developed rapidly. Since the beginning of the 21st century, the threat to human life and health from microorganisms in nature has been increasing; the spread of major infectious diseases including SARS, bird flu, and H1NI influenza requires people to improve the protection methods and measures against such germs . [0003] At present, the preparation methods of antibacterial fabrics can be divided into two types: physica...

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): D06M13/432D06M11/30D06M101/06
Inventor 王留阳廖洪林方建波陶国良
Owner CHANGZHOU UNIV
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