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Anti-virus filter layer prepared from copper-containing chitosan fibers and application of anti-virus filter layer

A technology of chitosan fiber and polysan fiber, which is applied in the field of health protection products, can solve the problems of masks with single function and lack of antibacterial and antiviral properties, and achieve strong antibacterial activity, good killing effect, and enhanced protective effect

Pending Publication Date: 2020-06-05
QINGDAO MINGYUE BIOMEDICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the mask has a single function and does not have antibacterial and antiviral properties, the invention discloses an antiviral filter layer made of copper-containing chitosan fiber and its application

Method used

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  • Anti-virus filter layer prepared from copper-containing chitosan fibers and application of anti-virus filter layer

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A preparation method of copper-containing chitosan fiber, specifically comprising the following steps

[0027] (1) Take a certain amount of soluble copper salt and dissolve it in water. After the dissolution is complete, add chitosan fiber, turn on the solution circulation pump, and soak for 4 hours in a circular reaction;

[0028] (2) Take out the fibers, wash them twice with pure water, soak them in 85% alcohol for 20 minutes, centrifuge and dehydrate them, and dry them in an oven at 55°C to obtain copper-containing chitosan fibers.

[0029] Wherein, the soluble copper salt is selected from copper sulfate pentahydrate, and the consumption is 5% of the chitosan fiber weight.

Embodiment 2

[0031] A preparation method of copper-containing chitosan fiber, specifically comprising the following steps

[0032] (1) Take a certain amount of soluble copper salt and dissolve it in water. After the dissolution is complete, add chitosan fiber, turn on the solution circulation pump, and soak for 24 hours in a circular reaction;

[0033] (2) Take out the fibers, wash them with pure water for 3 times, soak them in 85% alcohol for 40 minutes, centrifuge and dehydrate them, and dry them in an oven at 60°C to obtain copper-containing chitosan fibers.

[0034] Wherein, the soluble copper salt is selected from copper sulfate pentahydrate, and the consumption is 300% of the chitosan fiber weight.

[0035] Above-mentioned embodiment 2 is under the situation that copper ion is excessive, reaction time is long, has made the chitosan fiber of super high copper content. After testing, after the fiber absorbs copper ions, the weight increases by more than 46%.

[0036] In order to quan...

Embodiment 3

[0041] A kind of antiviral mask, the copper-containing chitosan fiber that embodiment 1 is made and alginate fiber are blended uniformly according to weight ratio 1:1, then processed into copper-containing chitosan fiber with acupuncture process and make Anti-virus filter layer, use the anti-virus filter layer as the middle filter layer, the filter layer has no obvious penetration holes, and the weight is 60g / m 2 .

[0042] Cut the middle filter layer and use the mask machine to produce it, with a waterproof treatment of 50g / m on one side 2 The pp non-woven surface layer is used as the outer layer, and the other side is attached with a weight of 30g / m 2 The top layer of pp non-woven fabric is used as the veneer layer, which is processed by machine and added with ear loops to form a mask.

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Abstract

The invention discloses an anti-virus filter layer prepared from copper-containing chitosan fibers, and relates to the technical field of sanitary protection articles. A preparation process of the copper-containing chitosan fibers comprises the following steps of immersing chitosan fibers in a soluble copper salt solution, performing circulation reaction for a period of time, soaking with an organic solvent, centrifuging and dehydrating, and drying to obtain the copper-containing chitosan fibers; and preparing the anti-virus filter layer of the copper-containing chitosan fibers from the copper-containing chitosan fibers through a non-woven process. The invention further discloses application of the anti-virus filter layer of the copper-containing chitosan fibers in the sanitary protectionarticle. The anti-virus filter layer and the application thereof have the beneficial effects that a mask prepared by an anti-virus filter layer fabric of the copper-containing chitosan fibers has a good filtering effect on particles such as bacterial viruses and a good killing effect on the bacterial viruses residing on the mask simultaneously, the protection effect can be further enhanced, and the mask can also be used for daily anti-haze or respiratory infection disease protection.

Description

technical field [0001] The invention relates to the technical field of sanitary protection products, in particular to an antiviral filter layer made of copper-containing chitosan fiber and its application. Background technique [0002] A mask is a widely used sanitary protective product, which forms a physical barrier between the mouth and nose of a person and the outside air, and plays a role in blocking foreign objects. At present, most of the filter layers of masks used by people are made of cotton gauze or melt-blown non-woven fabric. It has a blocking effect on particles such as bacteria and dust, but it does not have antibacterial and antiviral functions. [0003] In recent years, there have been many outbreaks of viral infectious diseases, such as SARS, avian influenza, H1N1 influenza, and new coronavirus pneumonia, which have posed a great threat to human health. Studies have shown that most pathogenic microorganisms can be transmitted through the air. In order to b...

Claims

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Application Information

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IPC IPC(8): D06M11/56D04H1/4258D04H1/4382A41D13/11A41D31/30A41D31/02D06M101/02
CPCD06M11/56D06M16/00D04H1/4258D04H1/4382A41D13/11A41D31/30A41D31/02D06M2101/02
Inventor 尚宪明秦益民李锦郝玉娜张德蒙
Owner QINGDAO MINGYUE BIOMEDICAL MATERIALS
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