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Washable antibacterial fabric and preparation method thereof

An antibacterial fabric and washable technology, which is applied in the fields of plant fiber, textile, papermaking, biochemical fiber treatment, etc., can solve the problems of complicated process, low adsorption efficiency, poor fastness, etc., and achieves cheap and easy-to-obtain raw materials and simple preparation process , good repeatability

Pending Publication Date: 2022-01-28
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There have been a lot of technical development work on the functional modification and finishing of inorganic nanoparticles in fabrics. The surface treatment technologies involved include padding, multi-layer deposition, plasma, sol-gel and supercritical carbon dioxide, etc., but these methods face complex processes, adsorption Problems such as low efficiency and poor fastness; in order to achieve durable effects, it is often necessary to introduce a crosslinking agent, but it will deteriorate the fabric's handle, strength and heat resistance.
In addition, the existing technology is only suitable for one type or several types of fabrics with similar physical properties, which is not universally applicable, and the cost of equipment and process optimization for different types of fabrics is relatively high
Lai Yaosheng et al. (CN110656491A) disclosed a preparation method of nano-silver wire antibacterial composite material: first synthesize nano-silver wire by chemical method, process it on cotton cloth by ink printing or coating, and then heat-treat at 200°C to make it antibacterial. Effect, unfortunately, the nano-silver wire has poor bonding with cotton fabrics, and the antibacterial effect of antibacterial fabrics is almost completely lost after washing

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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  • Washable antibacterial fabric and preparation method thereof
  • Washable antibacterial fabric and preparation method thereof
  • Washable antibacterial fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1-1) ultrasonically disperse 2g / L copper oxide nanoparticle aqueous dispersion for 1 hour, until the copper oxide nanoparticles are uniformly dispersed in the solution, immerse the nylon fabric in the copper oxide nanoparticle-containing solution, and the copper oxide nanoparticles are uniformly attached on fabric fibers;

[0032] (1-2) Add formaldehyde solution in 0.04mol / L cresol solution, stir evenly, in the mixed solution (the mol ratio of cresol and formaldehyde is 1:3, then add the mixed solution into the step (1-1) system , adjust the pH of the system to above 7, react in the reaction kettle at 140 ° C for 8 hours, take out the fabric from the solution, wash and dry to obtain a wash-resistant antibacterial fabric.

Embodiment 2

[0034] (1-1) Ultrasonic disperse 3g / L silver nanoparticles water dispersion liquid for 1h, until the silver nanoparticles are uniformly dispersed in the solution, soak the cotton fabric in the solution containing silver nanoparticles, and the silver nanoparticles are evenly attached to the fabric fibers superior;

[0035] (1-2) Add furfural solution in 0.05mol / L gallic acid solution, stir evenly, the molar ratio of gallic acid and furfural in the mixed solution is 1:4, then add the mixed solution in the step (1-1) system, Adjust the pH of the system to above 7, react in a reactor at 80° C. for 24 hours, take out the fabric from the solution, wash and dry to obtain a washable antibacterial fabric.

Embodiment 3

[0037] (1-1) Ultrasonic disperse 4g / L zinc oxide nanoparticle aqueous dispersion liquid for 1h, until the antibacterial zinc oxide nanoparticle is uniformly dispersed in the solution, immerse the aramid fabric in the solution containing antibacterial zinc oxide nanoparticle, zinc oxide nanoparticle The particles are evenly attached to the fabric fibers;

[0038] (1-2) Add hexamethylenetetramine into 0.1mol / L gallic acid solution, the molar ratio of gallic acid to hexamethylenetetramine is 1:6, stir evenly and add into the system of step (1-1) , adjust the pH of the system to 7 or more, react in a reactor at 100°C for 12 hours, take out the fabric from the solution, wash and dry to obtain a washable antibacterial fabric.

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 washable antibacterial fabric and a preparation method thereof. Metal or metal oxide nanoparticles are fixed on the fabric through in-situ formed phenolic resin. The specific steps are as follows: placing the fabric in a nano particle aqueous dispersion to enable nano particles to be adsorbed on the surface of the fabric, placing the fabric in a solution of a phenolic compound and an aldehyde compound, and fixing the nano particles on the surface of the fabric through in-situ generated phenolic resin; or placing the fabric in a solution containing the metal salt, the phenolic compound and the aldehyde compound or the aldehyde compound precursor, and forming the nano particles fixed by the phenolic resin on the surface of the fabric in situ. The antibacterial rate of the prepared fabric to escherichia coli, staphylococcus aureus and candida albicans reaches 99.99% or above, and the mechanical strength of the fabric is not obviously deteriorated. After the antibacterial fabric is washed for 50 times according to the AATCC61-2013-1A standard, the antibacterial performance of the antibacterial fabric keeps excellent.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a washable antibacterial fabric and a preparation method thereof. Background technique [0002] Fabric occupies a very important position in people's production and life, and is widely used in the fields of underwear, national defense, military and medical and health products. However, in the process of use, the surface of the fabric is very easy to breed bacteria, fungi and other microorganisms, which will affect human health, and will lead to loss of fiber strength and odor. People have long been committed to the research and development of fabrics with antibacterial functions, and achieve long-term health and safety through timely contact sterilization or inhibition of bacterial reproduction. The industrial scale of China's antibacterial fabrics reaches hundreds of billions of yuan. In recent years, with the abuse of antibiotics, a large number of drug-resistant ...

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): D06M11/83D06M11/44D06M15/41D06M101/06D06M101/20D06M101/32D06M101/34D06M101/36
CPCD06M11/83D06M11/44D06M15/41D06M16/00D06M2101/06D06M2101/34D06M2101/32D06M2101/20D06M2101/36Y02A50/30
Inventor 徐英俊曲连艺刘雁雁王玉忠
Owner QINGDAO UNIV
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