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Preparation method of diphenolic acid antibacterial cotton fabric

A cotton fabric and bisphenolic acid technology is applied in the field of fabrics to achieve the effects of low cost, simple operation and comfortable wearing.

Inactive Publication Date: 2021-09-28
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report of linking bisphenolic acid on the surface of cotton fiber through covalent bonds to endow cotton fabric with long-lasting antibacterial effect

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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  • Preparation method of diphenolic acid antibacterial cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The clean cotton fabric was immersed in 0.1% bisphenolic acid ethanol solution for 30 minutes, rolled to 100% weight gain, heated at 180 °C for 5 minutes, washed with ethanol and dried.

[0019] The prepared modified cotton fabric is constructed from cotton fabric and bisphenolic acid. Through the infrared analysis of the modified cotton fabric, at 1697 cm -1 and 1525 cm -1 There are C=O stretching vibration absorption peaks and benzene ring skeleton vibration absorption peaks respectively, but they are not obvious, indicating that bisphenolic acid is grafted on the surface of cotton fibers but the amount is small. The obtained antibacterial cotton fabric had poor killing effect on Staphylococcus aureus and Escherichia coli, and the antibacterial rate was only 17.10% and 11.64%. After 30 washes, the antibacterial rate dropped below 10%. The water vapor transmission rate of cotton fabric grafted with bisphenolic acid is 599.48 g / m 2 / d, the water absorption rate is 22...

Embodiment 2

[0021] The clean cotton fabric was dipped in 0.4% bisphenolic acid ethanol solution for 30 minutes, rolled to 100% weight gain, heated at 180 °C for 5 minutes, washed with ethanol and dried.

[0022] The prepared modified cotton fabric is constructed from cotton fabric and bisphenolic acid. Through the infrared analysis of the modified cotton fabric, at 1697 cm -1 and 1525 cm -1 There are obvious C=O stretching vibration absorption peaks and benzene ring skeleton vibration absorption peaks respectively, indicating that bisphenolic acid has been successfully grafted on the surface of cotton fibers. The obtained antibacterial cotton fabric has a stronger killing effect on Escherichia coli and Staphylococcus aureus than Example 1, the bacteriostatic rate of Staphylococcus aureus is almost 100%, and the bacteriostatic rate of Escherichia coli is also increased to 67.42%. After 30 times of washing, the antibacterial rate against Staphylococcus aureus dropped to 94.41%, and the ant...

Embodiment 3

[0024] The clean cotton fabric was immersed in 0.5% bisphenolic acid ethanol solution for 30 minutes, rolled to 100% weight gain, heated at 180 °C for 5 minutes, washed with ethanol and dried.

[0025] The prepared modified cotton fabric is constructed from cotton fabric and bisphenolic acid. Through the infrared analysis of the modified cotton fabric, at 1697 cm -1 and 1525 cm -1 There are obvious C=O stretching vibration absorption peaks and benzene ring skeleton vibration absorption peaks respectively, indicating that bisphenolic acid has been successfully grafted on the surface of cotton fibers. The resulting antibacterial cotton fabric has a stronger killing effect on Escherichia coli than Example 2, and the bacteriostatic rate of Staphylococcus aureus and Escherichia coli is almost 100%. After 30 times of washing, the antibacterial rate against Staphylococcus aureus dropped to 97.43%, and the antibacterial rate against Escherichia coli dropped to 95.47%. The moisture v...

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Abstract

The invention discloses a method for realizing a long-acting antibacterial effect by using a diphenolic acid modified cotton fabric. Materials involved in the method include diphenolic acid, ethanol and a cotton fabric. The preparation method of the antibacterial cotton fabric comprises the following steps of dipping the cotton fabric in an ethanol solution of the diphenolic acid, performing rolling to control certain weight increment, performing heating at 180 DEG C for a reaction, and performing washing and drying to obtain the product. According to the invention, the diphenolic acid is adopted as the raw material, and the cotton fabric is modified by combining with the dipping-rolling-heating process, so that the antibacterial cotton fabric with excellent washability is prepared. The process has small damage to the wearing comfort of the cotton fabric, and the method is simple in finishing process, low in production cost, environment-friendly and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of fabrics, and in particular relates to an antibacterial cotton fabric and a preparation process thereof. [0002] technical background [0003] Cotton fabric has good air permeability, softness and comfort, and is the main raw material for underwear and bedding. However, because the cellulose molecules in cotton fibers have a large number of hydrophilic groups, cotton fabrics have good water absorption capacity and can easily provide a suitable environment for the survival and reproduction of bacteria. Bacteria multiplying on the surface of fabrics not only produce unpleasant odors, but also affect the appearance and strength of cotton fabrics, and even cause health hazards and economic losses. Therefore, antibacterial finishing of cotton fabrics has attracted more and more attention. [0004] Antibacterial finishing agents commonly used in the textile industry include metal ions, metal oxides, haloamines,...

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): D06M13/207D06M101/06
CPCD06M13/207D06M16/00D06M2101/06
Inventor 刘向东沈丽雯胡欣悦金子毅
Owner ZHEJIANG SCI-TECH UNIV
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