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anti virus mask

An anti-virus and mask technology, applied in the field of anti-virus masks, can solve the problems of too large aperture, failure to meet anti-virus masks, and no national, industry and local standards for anti-virus masks, so as to solve the problem of tightness and prevent detection. Leakage, improve the effect of filtering virus

Active Publication Date: 2019-04-19
GUANGZHOU BIOFIL AIR PURIFICATION MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after searching the standards of our country's products, we found that there are no national, industry, or local standards for anti-virus masks; there is no real anti-virus mask approved by the State Food and Drug Administration for sale on the market.
The fundamental reason is that viruses such as influenza and Ebola are small, and the pore size of the materials used to make masks is much larger than that of viruses, that is, the filtration efficiency of the filter material itself cannot meet the requirements, and the pore size of the material fibers of conventional masks is too large (average 65500 Nano), unable to meet the filtering requirements of virus nano-level, essentially can not achieve the effect of anti-virus
[0004] For example, common mask materials are basically 2-layer non-woven fabrics, 16-layer gauze masks, and civilian cloth masks, etc., and only relying on three-dimensional cutting or plane structure design in the mask structure cannot solve the problem of close contact with the human face. Therefore, the current mask cannot effectively filter the virus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] An anti-virus mask such as Figure 1-2 As shown, it includes a cover body 100 , a fixing belt 200 , a nose shaping strip 300 and a sealing ring 400 .

[0055] The cover body 100 includes a first spunbond fiber layer 110, a meltblown fiber layer 120, a nanofiber layer 130 and a second spunbond fiber layer 140 stacked in sequence, such as image 3 Shown; The fiber diameter in the first spunbond fiber layer and the second spunbond fiber layer is 1 μm-10 μm, the fiber diameter in the melt-blown fiber layer is 100nm-500nm, and the fiber diameter in the nanofiber layer is 50nm -150nm, the pore diameter of the nanofiber layer is 50nm-250nm.

[0056] In this embodiment, the fixing strap 200 is a ring-shaped ear strap, which is fixed on the cover body through ultrasonic welding points 210 by means of ultrasonic welding. , the interlayer of the cover body is provided with a nose shaping strip 300, which is kneaded according to the shape characteristics of different users' noses...

Embodiment 2

[0067] A kind of antivirus mask is basically the same as the antivirus mask in embodiment 1, the difference is:

[0068] The nanofiber layer is prepared by the following method:

[0069] 1. Preparation of spinning solution.

[0070] Polytetrafluoroethylene was dissolved in N,N-dimethylacetamide (DMAc) to prepare a spinning solution with a mass concentration of 10%.

[0071] 2. Electrospinning.

[0072] Add the prepared spinning liquid into the spinning liquid tank of the electrospinning machine, and control the electrospinning conditions as follows: voltage 25kV, the distance from the nanofiber outlet of the needleless electrospinning machine to the spinning roller 15cm, electrospinning is carried out. The spun nanofibers are directly compounded on the double-layer non-woven fabric of melt-blown polypropylene (PP) fiber layer / spun-bonded polypropylene (PP) fiber layer.

[0073]Then compound a layer of spun-bonded PP fiber layer on the formed nanofiber layer. Finally, a fi...

Embodiment 3

[0075] A kind of antivirus mask is basically the same as the antivirus mask in embodiment 1, the difference is:

[0076] The nanofiber layer is prepared by the following method:

[0077] 1. Preparation of spinning solution.

[0078] Polypropylene was dissolved in N,N-dimethylacetamide (DMAc) to prepare a spinning solution with a mass concentration of 10%.

[0079] 2. Electrospinning.

[0080] Add the prepared spinning liquid into the spinning liquid tank of the electrospinning machine, and control the electrospinning conditions as follows: voltage 25kV, the distance from the nanofiber outlet of the needleless electrospinning machine to the spinning roller 15cm, electrospinning is carried out. The spun nanofibers are directly compounded on the double-layer non-woven fabric of melt-blown polypropylene (PP) fiber layer / spun-bonded polypropylene (PP) fiber layer.

[0081] Then compound a layer of spun-bonded PP fiber layer on the formed nanofiber layer. Finally, a filter mate...

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Abstract

The invention relates to an anti-virus mask, and belongs to the technical field of filter protection equipment. The anti-virus mask comprises a mask body and fixing straps. The mask body comprises a first spun-bonded fiber layer, a melt-blown fiber layer, a nanofiber layer and a second spun-bonded fiber layer which are sequentially stacked. The diameter of each fiber in the first spun-bonded fiber layer and the second spun-bonded fiber layer ranges from 1 micrometer to 10 micrometers. The diameter of each fiber in the melt-blown fiber layer ranges from 100 nm to 500 nm. The diameter of each fiber in the nanofiber layer ranges from 50 nm to 150 nm. The aperture of the nanofiber layer ranges from 50 nm to 250 nm. The mask body of the mask is made of a filter material formed by stacking four layers of fibers, the spun-bonded fibers are adopted in the upper layer and the lower layer and achieve the functions of achieving primary filtering and protecting and supporting the middle filter layers in the filter material, and the nanofiber layer and the melt-blown fiber layer serve as the two middle layers and achieve the function of finely filtering out viruses and germs in the filter material; and particles with the diameter being 100 nm or above can be filtered out, and then the mask can achieve the function of filtering out the viruses.

Description

technical field [0001] The invention relates to the technical field of filter protection equipment, in particular to an antivirus mask. Background technique [0002] At present, pathogenic microorganisms such as bacteria and viruses will seriously threaten the health of the people for a long time. From the outbreak of the SARS virus in China in 2003 to the outbreak of the Ebola virus in West Africa in 2014, to the frequent occurrence of bird flu virus, H1N1 virus and other transmissible viral diseases all over the world have seriously threatened human life and health. . However, due to the increasingly frequent foreign exchange and business trade in our country, it is already facing the serious threat of imported transmission. [0003] For the mobile crowd, the easiest, economical and effective way to block respiratory diseases such as influenza is to wear a mask. However, after searching the standards of our country's products, we found that there are no national, indust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62B9/06A62B23/06
CPCA62B9/06A62B23/06
Inventor 杨德懋李慧伦王文江陈勇
Owner GUANGZHOU BIOFIL AIR PURIFICATION MATERIAL CO LTD
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