Novel coronavirus protection plane mask

A mask and virus technology, applied in protective clothing, clothing, clothing, etc., can solve the problems of unsatisfactory virus filtration effect, complex structure of N99 masks, cumbersome production process, etc., and achieve low production cost, good air permeability, and high-efficiency capture capacity Effect

Inactive Publication Date: 2020-06-09
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The few N99 masks are expensive and have low output due to their complex structure and cumbersome production process
The best-selling protective PM in the market 2.5 Masks are good for PM 2.5 The mass concentration filtration efficiency can reach 95% or even more than 99%, but for the PM 2.5 The mass concentration is extremely low, but the number concentration can reach 4000-5000 virus particles or clusters per cubic centimeter, protecting PM 2.5 Masks still filter large particle aerosols, and the filtering effect on viruses is still not ideal

Method used

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  • Novel coronavirus protection plane mask
  • Novel coronavirus protection plane mask
  • Novel coronavirus protection plane mask

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A flat face mask for high-efficiency protection against the new coronavirus, the schematic diagram of which is shown in figure 1 shown. Plane mask 1# has a three-layer structure, which is the outer layer of polypropylene spunbond nonwoven fabric with holes 1, the middle layer of double-layer ultrafine denier electret meltblown fiber nonwoven fabric 2, and the inner layer of polypropylene spunbonded nonwoven fabric with holes Layer 3. The grammage of the outer layer 1 of the porous polypropylene spunbond nonwoven fabric is 25 g / m 2 , the weight of each layer of the middle layer 2 of the double-layer ultra-fine denier electret melt-blown fiber nonwoven fabric is 30 g / m 2 , the grammage of the inner layer 3 of the porous polypropylene spunbonded nonwoven fabric is 30 g / m 2 .

[0028] Select the mask sample 1#, and evaluate its effect of simulating the filtration of 100nmPSL beads by the new coronavirus as attached figure 2 Shown: as attached figure 2 As shown, the...

Embodiment 2

[0030] A flat face mask for high-efficiency protection against the new coronavirus, the schematic diagram of which is shown in figure 1shown. Plane mask 2# has a three-layer structure, which are the outer layer of polypropylene spunbond nonwoven fabric with holes 1, the middle layer of double-layer ultrafine denier electret meltblown fiber nonwoven fabric 2, and the inner layer of polypropylene spunbonded nonwoven fabric with holes Layer 3. The grammage of the outer layer 1 of the porous polypropylene spunbond nonwoven fabric is 25 g / m 2 , the weight of each layer of the middle layer 2 of the double-layer ultra-fine denier electret melt-blown fiber nonwoven fabric is 50 g / m 2 , the grammage of the inner layer 3 of the porous polypropylene spunbonded nonwoven fabric is 30 g / m 2 .

[0031] Select mask sample 2#, and evaluate its effect of simulating the filtration of 100nmPSL pellets by the new coronavirus as attached image 3 Shown: as attached image 3 As shown, the num...

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Abstract

The invention belongs to the technical field of protective masks, and particularly relates to a novel coronavirus protection plane mask. A main body of the protection plane mask is of a three-layer structure and sequentially comprises a polypropylene spun-bonded nonwoven fabric, a double-layer superfine denier electret melt-blown fiber nonwoven fabric and a polypropylene spun-bonded nonwoven fabric from outside to inside; the edges of a left mask and a right mask are respectively provided with two arc-shaped edges, one of the arc-shaped edges is in butted to form an arc-shaped middle seam, theother arc-shaped edge is respectively provided with ear bands, and the upper edges, close to the inner side of the nose bridge, of the left mask and the right mask are provided with nose lines; and the edges of the mask are integrally pressed to form a complete system. The protection plane mask has an efficient new coronavirus filtering effect, can reach the NIOSH (National Institute for Occupational Safety and Health in USA) N95 and N99 standards, and has good air permeability.

Description

technical field [0001] The invention belongs to the technical field of protective masks, and in particular relates to a high-efficiency protective flat mask for novel coronavirus. Background technique [0002] Coronaviruses are a large class of viruses that widely exist in nature. The diameter of the virus particles is 60-120nm, the average diameter is 100nm, and they are spherical or ellipsoidal. The 2019 novel coronavirus (2019-nCoV, causing COVID-19) is the seventh known coronavirus that can infect humans. Common signs of patients infected with coronavirus include respiratory symptoms, fever, cough, shortness of breath and dyspnea. In more severe cases, infection can lead to pneumonia, severe acute respiratory syndrome, multi-organ failure, and even death. In order to protect the health and safety of themselves and others, the majority of residents wore masks to strengthen virus protection during the epidemic. At the same time, in the process of fighting the epidemic, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D13/11A41D31/14A41D31/30A41D31/26A41D31/02
CPCA41D13/11A41D31/14A41D31/30A41D31/26A41D31/02
Inventor 陈建民孙剑峰陈晖隋国栋王琳
Owner FUDAN UNIV
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