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Biological antibiotic cotton fibers or cotton cloth and method for preparing same

A technology of antibacterial fiber and biological antibacterial agent, which is applied in the field of biological antibacterial cotton fiber or cotton cloth and its preparation, can solve the problems of antibacterial fiber safety and poor washing resistance, and achieve non-toxic side effects, low cost, and long-lasting effects

Active Publication Date: 2010-11-17
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To overcome the shortcomings of the existing antibacterial fibers in safety and poor washing resistance, and provide an antibacterial cotton cloth with high safety, good stability, good antibacterial and antibacterial effects, convenient preparation process, low raw material cost, and wide application range or antibacterial cotton fiber

Method used

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  • Biological antibiotic cotton fibers or cotton cloth and method for preparing same
  • Biological antibiotic cotton fibers or cotton cloth and method for preparing same
  • Biological antibiotic cotton fibers or cotton cloth and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0012] The preparation steps of this antibacterial cotton cloth or antibacterial fiber are as follows:

[0013] (1) Preparation of oxidized cellulose

[0014] Put cotton cloth or cotton fiber in a three-necked flask equipped with agitator and thermometer, add sodium periodate solution with a concentration of 0.03-0.1mol / L, and oxidize at 30-60°C for 2-6 hours under dark conditions to obtain the active The oxidized cotton fiber of the group is reacted with 0.1-1.0% glycerin, washed for 0.5-2 hours, and then fully washed with distilled water to remove glycerin. Put the oxidized cotton cloth fibers in the air to dry naturally or at high temperature.

[0015] (2) Grafting of oxidized cellulose and ε-PL

[0016] The dried oxidized cellulose is placed in 0.5-5% ε-polylysine aqueous solution and reacted at room temperature. After the reaction is completed, take it out and dry it or dry it in the air to obtain antibacterial cotton fiber or cotton cloth.

[0017] (3) It is also pos...

Embodiment 1

[0019] Weigh 3g of pure cotton fiber, put it in a three-necked flask equipped with a stirring and thermometer, add a 0.04mol / L sodium periodate solution, and oxidize it at 30°C for 4 hours under dark conditions to obtain an oxidized cotton cloth containing active groups Fiber, oxidized cotton cloth fiber was reacted with 0.1% glycerin, washed for 0.5h, and then fully washed with distilled water to remove glycerin. Put the oxidized cotton cloth fibers in the air to dry naturally or at high temperature. The dried oxidized cellulose was placed in 1.0% ε-polylysine aqueous solution and reacted at room temperature for 3 hours. After the reaction was completed, it was taken out and dried or air-dried to obtain antibacterial cotton fibers.

[0020] The antibacterial performance test was carried out on the prepared antibacterial cotton fiber. 0.3mL of Escherichia coli in the logarithmic phase was connected to 50mL of sterilized LB liquid medium, and 0.15g of the treated antibacterial ...

Embodiment 2

[0024] Weigh 3g of pure cotton cloth, place it in a three-necked flask equipped with a stirring and thermometer, add a 0.06mol / L sodium periodate solution, and oxidize it at 30°C for 3 hours in the dark to obtain an oxidized cotton cloth containing active groups Fiber, oxidized cotton cloth fiber was reacted with 0.1% glycerin, washed for 0.5h, and then fully washed with distilled water to remove glycerin. Arrange the oxidized cotton in the air to dry naturally or at high temperature. Arrange the dried oxidized cotton in 1.0% ε-polylysine aqueous solution and react at room temperature for 3 hours. After the reaction is completed, take it out and dry it or dry it in the air to obtain an antibacterial cotton cloth.

[0025] The antibacterial performance test was carried out on the prepared antibacterial cloth. 0.3mL of Escherichia coli in the logarithmic phase was connected to 50mL of sterilized LB liquid medium, and 0.15g of the treated antibacterial cloth was also connected to...

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Abstract

The invention relates to biological antibiotic cotton fibers or cotton cloth and a method for preparing the same. In the preparation method, a biological preservative of epsilon-polylysine serving as a bacteriostatic agent is subjected to grafting reaction with cotton fibers or cotton cloth undergoing oxidation treatment by sodium periodate or subjected to adsorption combination with cotton fibers or cotton cloth not undergoing oxidation treatment to form the cotton fibers or cotton cloth having antibiotic and bacteriostatic effects. Because the anti-bacterial agent used in the cotton fibers or cotton cloth is the bacteriostatic agent of epsilon-polylysine, the biological antibiotic cotton fibers or cotton cloth is high in safety. The biological antibiotic cotton fibers or cotton cloth can be used in production of garments and hygienic products.

Description

technical field [0001] The invention relates to a biological antibacterial cotton fiber or cotton cloth and a preparation method thereof. It is made by combining cotton fiber or cotton cloth with biological preservative ε-polylysine, which has antibacterial activity. Background technique [0002] Antibacterial fiber is formed by introducing substances capable of inhibiting bacterial growth into the surface and interior of the fiber by physical or chemical methods. The antibacterial agent can not only fall off on the fiber, but also diffuse through the inside of the fiber to maintain a long-lasting antibacterial effect. . At present, antibacterial fibers are roughly divided into two categories: natural antibacterial fibers and artificial antibacterial fibers. Among them, the artificial antibacterial fiber is a fiber that does not have antibacterial function before adding antibacterial agents to make it a fiber with antibacterial function. While utilizing natural antibacter...

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): D06M15/59D06M11/30D06M13/148D06M101/06
Inventor 谭之磊徐珍贾士儒戴玉杰乔长晟钟成贾原媛
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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