Method for preparing antibacterial fiber

An antibacterial fiber and fiber technology, applied in animal fiber, fiber treatment, plant fiber, etc., can solve the problems of low equipment requirements, low energy consumption, etc., and achieve the effect of improving hydrophilicity

Inactive Publication Date: 2012-01-04
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies and problems existing in the existing antibacterial finishing methods, the technical purpose of the present invention is to provide a method for preparing antibacterial fibers using "nutritional" antibacterial agents, so that the fibers prepared by this method have strong antibacterial functions, and at the same time It also improves the hydrophilicity of the fiber without destroying the structure of the fiber itself, and this method can have the advantages of low equipment requirements, low energy consumption, and no environmental pollution.

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

[0033] Wool fibers (purchased from Fabric City, Shanxi Road, Nanjing) were immersed in a solution of sodium alginate, the concentration of the solution was 12% owf, the pH of the solution was 7.0, the concentration of NaCl in the solution was 1.2g / L, and the temperature was 40 ℃, the bath ratio is 1:50, the immersion time is 2h, washed with water, and dried at 50°C; the wool fiber that has adsorbed sodium alginate is immersed in the ε-PL solution, the concentration of the solution is 12% owf, and NaOH is added to adjust the solution The pH is 8.0, the concentration of NaCl in the solution is 1.2g / L, the temperature is 50°C, the bath ratio is 1:50, the soaking time is 2h, washed with water, and dried at 50°C. The final result: the amount of ε-PL adsorbed on the surface of 1g wool fiber was 25.1mg, the bacteriostatic rate against Escherichia coli was 96.978%, and the bacteriostatic rate against Micrococcus luteus was 97.927%. At the same time, the interface contact angle formed ...

Embodiment 2

[0035] Wool fiber (purchased from Shanxi Road Fabric City, Nanjing City) was immersed in a solution of sodium alginate, the concentration of the solution was 4% owf, adding acetic acid to adjust the pH of the solution was 3, and the concentration of KCl in the solution was 0.5g / L. The temperature is 40°C, the bath ratio is 1:40, the immersion time is 2h, washed with water, and dried at 50°C; the wool fiber that has adsorbed sodium alginate is soaked in the ε-PL solution, the concentration of the solution is 8% owf, adding Adjust the pH of the solution to 3 with acetic acid, the concentration of KCl in the solution is 0.5g / L, the temperature is 50°C, the bath ratio is 1:30, the soaking time is 2h, washed with water, and dried at 50°C. The amount of ε-PL adsorbed on the surface of 1g wool fiber was 16.2mg, and the bacteriostatic rate against Escherichia coli was 96.937%, and the bacteriostatic rate against Micrococcus luteus was 97.912%. Repeat the above steps 10 times. The fin...

Embodiment 3

[0037]Cotton fibers (purchased from Fabric City, Shanxi Road, Nanjing) were immersed in the ε-PL solution, the concentration of the solution was 12% owf, adding NaOH to adjust the pH of the solution to be 10, the temperature was 80°C, and the bath ratio was 1:50. The immersion time is 2 hours, washed with water, and dried at 50°C; soak the cotton fiber that has absorbed ε-PL in a solution of sodium alginate, the concentration of the solution is 12% owf, add NaOH to adjust the pH of the solution to 10, and the temperature is 80°C , the bath ratio is 1:50, the soaking time is 2h, washed with water, and dried at 50°C. Repeat the above steps 3 times. The final result: the amount of ε-PL adsorbed on the surface of 1g cotton fiber was 9.4mg, the antibacterial rate against Escherichia coli was 96.929%, and the antibacterial rate against Micrococcus luteus was 97.897%.

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

The invention relates to a method for preparing an antibacterial fiber, which comprises the following steps of: soaking a fiber into the solution of sodium alginate with the electric property opposite to that of an electric charge of the fiber, and adsorbing the sodium alginate on the surface of the fiber through electrostatic attraction; and then soaking the fiber adsorbed with the sodium alginate into the solution of epsilon-PL with the electric property opposite to that of the electric charge of the fiber, and adsorbing the epsilon-PL on the surface of the fiber adsorbed with the sodium alginate through the electrostatic attraction to produce the product. The fiber prepared by the preparation method has the advantages of high antibacterial property and improvement on hydrophily. The method for preparing the antibacterial fiber has the advantages of low requirement on equipment, low energy consumption, no environmental pollution and the like.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial fiber, more specifically a method for obtaining an antibacterial fiber coated with an ε-polylysine film on the surface of the fiber through electrostatic self-assembly technology. Background technique [0002] During the process of human body wearing, textiles will be contaminated with various human secretions and various dirt in the environment, but because the fibers of textiles themselves do not have antibacterial ability, these dirt will become a good breeding ground for various bacteria under certain conditions. environment, so ordinary textile products often provide a living place for bacteria, threatening human health. The purpose of antibacterial finishing technology is to solve the problem of antibacterial textiles. Commonly used antibacterial finishing technologies include antibacterial dye dyeing, chemical modification adsorption, nano-silver coating and chemical cross-linking...

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): D06M101/16D06M15/59D06M101/04D06M15/13D06M101/10
Inventor 徐虹仲兆祥常菁
Owner NANJING TECH UNIV
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