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Preparation method of simple long-acting antibacterial fabric coating

An antibacterial fabric and long-lasting technology, applied in textiles and papermaking, fiber treatment, biochemical fiber treatment, etc., can solve the problems of antibacterial agent shedding, fabric antibacterial performance reduction, etc., and achieve strong antibacterial activity and excellent antibacterial durability.

Active Publication Date: 2020-01-10
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional treatment method of guanidine salt antibacterial agent is to directly soak the fabric in the solution of guanidine salt antibacterial finishing agent for a period of time and then dry it, and the guanidine salt antibacterial agent will be absorbed through the electrostatic adsorption between the fabric and the guanidine salt antibacterial finishing agent. The finishing agent is adsorbed on the surface of the fabric, but due to the relatively weak electrostatic adsorption force, the antibacterial agent will gradually fall off from the fabric as the fabric is worn and used, and the antibacterial performance of the fabric will gradually decrease until it disappears. If the guanidine salt antibacterial finishing agent Fixing on the surface of the fabric by chemical bonding can effectively solve this problem and obtain long-lasting antibacterial fabrics. Considering the process and cost, how to fix the guanidinium salt antibacterial finishing agent by chemical bonding in a low-cost and simple way The surface of the fabric is the main technical difficulty

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 simple long-acting antibacterial fabric coating
  • Preparation method of simple long-acting antibacterial fabric coating
  • Preparation method of simple long-acting antibacterial fabric coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of concrete preparation operation step of simple long-acting antibacterial fabric coating is as follows:

[0029] (1) Preparation of treatment solution A

[0030] Mix 30g of methanol and 20g of deionized water, then add 1.5g of γ-glycidyl etheroxypropyl trimethoxysilane (KH560), mix well, and obtain a KH560 solution with a concentration of 1%, namely the treatment solution A.

[0031] (2) Preparation of treatment solution B

[0032] Dissolve 1.5g of polyhexamethyleneguanidine hydrochloride (PHMG) in 50g of methanol to obtain a PHMG solution with a concentration of 1%, that is, treatment solution B.

[0033] (3) Fabric treatment

[0034] Soak the treated fabric in treatment solution A for 15 minutes, take it out and dry it at 160°C for 1 hour; then react it in treatment solution B for 48 hours at a stirring speed of 150r / min, take it out, and rinse it with deionized water for 5 times. Just dry it at 50°C.

[0035] See figure 2 , where the 1080cm of the b cur...

Embodiment 2

[0039] A kind of concrete preparation operation step of simple long-acting antibacterial fabric coating is as follows:

[0040] (1) Preparation of treatment solution A

[0041] Mix 30g of ethanol with 20g of deionized water, then add 1.5g of KH560, and mix well to obtain a 1% KH560 solution, which is the treatment solution A.

[0042] (2) Preparation of treatment solution B

[0043] Dissolve 1.5g of PHMG in 50g of ethanol to obtain a 1% concentration of PHMG solution, that is, treatment solution B.

[0044] (3) Fabric treatment

[0045] Soak the treated fabric in treatment solution A for 20 minutes, take it out and dry it at 150°C for 1 hour, then react it in treatment solution B for 24 hours at a stirring speed of 200r / min, take it out, and rinse it with deionized water 4 times. Dry at 45°C.

[0046] Passed the antibacterial test, after 100 washes of the treated fabric E. coil and S. aureus The antibacterial rate can still reach more than 99%, and the fabric has excel...

Embodiment 3

[0048] A kind of concrete preparation operation step of simple long-acting antibacterial fabric coating is as follows:

[0049] (1) Preparation of treatment solution A

[0050] Mix 30g of methanol and 20g of deionized water, then add 1.6g of KH560 and mix well to obtain a 1% concentration of KH560 solution, that is, treatment solution A.

[0051] (2) Preparation of treatment solution B

[0052] Dissolve 2.0g of PHMG in 50g of methanol to obtain a PHMG solution with a concentration of 1%, namely the treatment solution B.

[0053] (3) Fabric treatment

[0054] Soak the fabric to be treated in treatment solution A for 15 minutes, take it out and dry it at 155°C for 1 hour; then react in treatment solution B for 36 hours at a stirring speed of 210r / min, take it out, and rinse it with deionized water for 5 times. Just dry it at 50°C.

[0055] Passed the antibacterial test, after 100 washes of the treated fabric E. coil and S. aureus The antibacterial rate can still reach mo...

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 long-acting antibacterial fabric coating and a preparation method thereof, and belongs to the field of green functional polymer materials. The preparation method comprises the following main operation steps: (1) preparing a gamma-glycidoxypropyltrimethoxysilane (KH560) solution, namely a treatment solution A; (2) preparing a polyhexamethylene guanidine hydrochloride (PHMG) solution, namely a treatment solution B; (3) soaking a treated fabric in the treatment solution A and the treatment solution B respectively to form an antibacterial coating on the surface of the treated fabric. KH560 is used as a bridge to fix PHMG on the surface of the fabric, and the reaction mechanism is as shown in figure 1; the treated fabric has excellent antibacterial performance, the antibacterial rate of gram-negative bacteria representing escherichia coli and gram-positive bacteria representing staphylococcus aureus reaches 99.0% or above, the antibacterial effect of the fabric isbasically unchanged after being eluted by 100%, the whole treatment process is simple to operate, the cost is low, and the method has important significance for improving the production and living environment of people and preventing spread of bacterial viruses.

Description

technical field [0001] The invention belongs to the field of green functional polymer materials, and in particular relates to a preparation method of a simple and long-lasting antibacterial fabric coating. Background technique [0002] There are all kinds of microorganisms in nature, such as bacteria, fungi, etc., they are in air, water, soil and other media, and there are also microorganisms in textiles such as clothing that are in direct contact with people. It will reproduce in large numbers, which will affect the properties of textiles, such as fading, reducing strength, etc. Similarly, it will indirectly affect people's health, spread various diseases, and affect skin health, so it is urgent to find efficient, broad-spectrum, and durable antibacterial agents to inhibit or kill harmful microorganisms that exist on textiles; antibacterial textiles There are two main production methods: the first is to add antibacterial agents to the spinning solution and spin to make ant...

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): D06M13/513D06M15/37
CPCD06M13/513D06M15/37D06M16/00
Inventor 杨建军张孜文吴庆云张建安吴明元刘久逸
Owner ANHUI UNIVERSITY
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