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Fine-particle-proof mask with chitosan and nano-zinc oxide and manufacturing method of fine-particle-proof mask

A technology of nano-zinc oxide and fine particles, which is applied in the field of sanitary products preparation, can solve the problems of lack of protection against fine particles, difficulty in breathing, poor air permeability, etc., and achieve good market application prospects, high safety, and good air permeability. Effect

Inactive Publication Date: 2014-04-09
青岛海百合生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing conventional medical and civil masks cannot effectively resist fine particles, because most of them are made of non-woven fabrics or similar large-pore fibers, and tiny fine particles can still pass through the masks and enter the nasal cavity, basically Less protection against fine particles
Professional-level protective masks such as N95 masks, although the effect of filtering fine particles is more obvious, but because of their thick texture and poor air permeability, it is easy to cause breathing difficulties after wearing them; especially children, the elderly, people with respiratory diseases and People with cardiovascular disease and other special groups should carefully choose masks with too thick texture and poor air permeability

Method used

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  • Fine-particle-proof mask with chitosan and nano-zinc oxide and manufacturing method of fine-particle-proof mask

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Embodiment 1

[0031] The anti-fine particle respirator containing chitosan and nano-zinc oxide of the present invention comprises cover body 1 and ear band 4 (left ear band and right ear band), and its overall structure schematic diagram is as follows figure 1 As shown, the periphery of the cover is provided with a cover frame 2, such as figure 2 As shown, the cover body frame 2 is provided with 4 layers of fillers, which are sequentially from the outside to the inside: the first layer is a non-woven fabric layer, the second layer of activated carbon non-woven fabric layer, and the third layer contains chitosan and nano Zinc oxide absorbent cotton gauze functional layer, the fourth layer is a non-woven fabric layer; it can effectively block fine particles from entering the human body, prevent secondary pollution of bacteria entering the mask body, and have good air permeability.

[0032] The mask body is also provided with a nasal mask 3 that can effectively protect the nose at the corresp...

Embodiment 2

[0043] The preparation method of the anti-fine particle mask containing chitosan and nano-zinc oxide of the present invention comprises the following steps:

[0044] (1) take by weighing 2g crab shell chitosan and be dissolved in the acetic acid solution of 50ml 1%, prepare the chitosan solution that mass volume ratio is 4%;

[0045] (2) Weigh 59.5gZn(NO 3 ) 2 ·6H 2 Dissolve O in 100ml distilled water, stir well to make 2M zinc nitrate aqueous solution, slowly add 0.1M NaOH solution and keep stirring to get white precipitate of zinc hydroxide, extract and wash the precipitate, add ammonia water to it and keep stirring until just no precipitate particles can be seen , the solution is translucent, then add a small amount of distilled water and move to a closed container to mark for later use;

[0046] (3) Soak the absorbent cotton gauze in the chitosan solution described in step (1), transfer it after 12 hours and soak it in 0.1% sodium hydroxide solution for 2 hours, rinse w...

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Abstract

The invention discloses a fine-particle-proof mask with chitosan and nano-zinc oxide and a manufacturing method of the fine-particle-proof mask. The mask is formed by four layers of materials, the four layers of materials include two function layers which are an activated carbon non-woven cloth layer and a degreasing cotton gauze function layer with the chitosan and the nano-zinc oxide. The mask has the functions of absorbing fine particles, resisting bacteria and eliminating peculiar smells, can effectively achieve the aims of preventing the fine particles from entering a human body and preventing microorganism and organic pollutants entering the mask from causing secondary pollution, and meanwhile has good permeability. The manufacturing method of the mask is simple, sources of the materials are wide, and the mask is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of preparation of sanitary products, and in particular relates to a fine particle-proof mask containing chitosan and nano zinc oxide and a preparation method thereof. Background technique [0002] In the past two or three years, as many provinces and cities in my country have experienced persistent smog to varying degrees, PM2.5 and its hazards have been quickly recognized by the public. PM2.5 refers to particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns in the ambient air, also known as particulate matter that can enter the lungs. In February 2013, the Chinese name of PM2.5 was officially named "fine particulate matter" by the National Science and Technology Terms Approval Committee. Although fine particulate matter is only a small component in the earth's atmosphere, due to its small particle size, large surface area, strong activity, and strong adsorption, it is e...

Claims

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Application Information

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IPC IPC(8): A41D13/11
Inventor 吴琼
Owner 青岛海百合生物技术有限公司
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