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Chitosan oligosaccharide-based fabric antibacterial finishing agent and preparation method thereof

A technology of antibacterial finishing agent and chitosan oligosaccharide, which is applied in the field of fabric antibacterial finishing agent and its preparation based on chitosan oligosaccharide, which can solve the problems of easily causing skin diseases and poor safety

Pending Publication Date: 2021-11-23
SUZHOU XUNRU ELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the early 1970s, antibacterial finishing agents began to be widely used in the textile industry, but there were problems of poor safety and easy skin diseases

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

[0029] An antibacterial finishing agent for fabrics based on chitosan oligosaccharide, mainly comprising: 28 parts of modified geraniol microspheres, 110 parts of chitosan oligosaccharide, and 22 parts of naphthalene tetracarboxylic anhydride.

[0030] A kind of preparation method of fabric antibacterial finishing agent based on chitosan oligosaccharide, the preparation method of described fabric antibacterial finishing agent based on chitosan oligosaccharide mainly comprises the following preparation steps:

[0031](1) Dissolve geraniol microspheres and hydroxychalcone carboxylic acid with 2.1 times the mass of geraniol microspheres in dichloromethane with 86 times the mass of geraniol microspheres, stir at 200rpm for 10min, then add geraniol 4-dimethylaminopyridine with 0.4 times the quality of microspheres, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride with 1.4 times the quality of geraniol microspheres, at room temperature with the same After stirring at a spe...

Embodiment 2

[0041] An antibacterial finishing agent for fabrics based on chitosan oligosaccharide, mainly comprising: 28 parts of geraniol microspheres, 110 parts of chitosan oligosaccharide, and 22 parts of naphthalenetetracarboxylic anhydride in parts by weight.

[0042] A kind of preparation method of fabric antibacterial finishing agent based on chitosan oligosaccharide, the preparation method of described fabric antibacterial finishing agent based on chitosan oligosaccharide mainly comprises the following preparation steps:

[0043] (1) Disperse the geraniol microspheres in deionized water 20 times the mass of the geraniol microspheres, and ultrasonically disperse for 20 minutes to obtain a suspension;

[0044] (2) Add chitosan oligosaccharide with a volume fraction of 19 times the mass of chitosan oligosaccharide in 2% acetic acid solution, stir until dissolved, add the suspension obtained in step (1) with 0.25 times the mass of chitosan oligosaccharide, stir at room temperature and ...

Embodiment 3

[0049] An antibacterial finishing agent for fabrics based on chitosan oligosaccharide, mainly comprising: 28 parts of modified geraniol microspheres and 110 parts of chitosan oligosaccharide in parts by weight.

[0050] A kind of preparation method of fabric antibacterial finishing agent based on chitosan oligosaccharide, the preparation method of described fabric antibacterial finishing agent based on chitosan oligosaccharide mainly comprises the following preparation steps:

[0051] (1) Dissolve geraniol microspheres and hydroxychalcone carboxylic acid with 2.1 times the mass of geraniol microspheres in dichloromethane with 86 times the mass of geraniol microspheres, stir at 200rpm for 10min, then add geraniol 4-dimethylaminopyridine with 0.4 times the quality of microspheres, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride with 1.4 times the quality of geraniol microspheres, at room temperature with the same After stirring at a speed of 4 h, add water with 32.5 t...

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 discloses a chitosan oligosaccharide-based fabric antibacterial finishing agent and a preparation method thereof. According to the invention, firstly geraniol microspheres and hydroxychalcone carboxylic acid are subjected to a polymerization reaction to prepare modified geraniol microspheres, and the antibacterial activity is exerted in a molecular form; under the action of glutaraldehyde and silica gel, continuous porous chitosan oligosaccharide shell layers are formed on the surfaces of the modified geraniol microspheres to prepare porous microspheres, and due to the firm intermolecular association force between the hydroxychalcone carboxylic acid and the chitosan oligosaccharide, the slow release time is prolonged, and the long-acting antibacterial effect is achieved; and secondly, naphthalene tetracarboxylic anhydride is grafted on the surfaces of the porous microspheres, a plurality of hydrophobic groups are introduced to form a hydrophobic membrane, and the hydrophobic membrane can react with a few fabrics, so that the fabric antibacterial finishing agent is firmly combined on the fabrics. The chitosan oligosaccharide-based fabric antibacterial finishing agent prepared by the invention has long-acting antibacterial, hydrophobic and moisture-proof effects.

Description

technical field [0001] The invention relates to the technical field of fabric additives, in particular to a fabric antibacterial finishing agent based on chitosan oligosaccharide and a preparation method thereof. Background technique [0002] Along with the historical process of human understanding of microorganisms, people have gradually realized the impact of microorganisms on the human body, and began to consciously use various methods to resist harmful microorganisms, one of which is the use of antibacterial methods to treat daily clothing. In ancient my country, there was a custom of using traditional Chinese medicine and spices to fumigate clothes in order to drive away and prevent diseases. During World War II, Germany used quaternary ammonium salts as an antibacterial finishing agent for clothing on a large scale for the first time in history. The German army hoped that military uniforms treated with quaternary ammonium salts could reduce the infection caused by woun...

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): D06M15/03D06M13/144D06M13/192D06M23/12D06M13/123D06M13/236D06M101/02D06M101/08
CPCD06M15/03D06M13/144D06M13/1845D06M16/00D06M23/12D06M13/123D06M13/236D06M2101/08D06M2101/02
Inventor 曹志勇
Owner SUZHOU XUNRU ELECTRIC TECH CO LTD
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