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Corona virus protection composite screen window net

A technology of window screens and viruses, which is applied in the direction of insect protection, windows/doors, door/window protection devices, etc., can solve the problems of unsatisfactory virus filtering effect, achieve the effects of ensuring air circulation and lighting, improving air permeability, and avoiding discomfort

Pending Publication Date: 2020-07-03
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PM containing adsorbent material 2.5 Although the filter screen net is good for PM 2.5 The mass concentration filtration efficiency can reach 95% or even more than 99%, but for the PM 2.5 For virus particles or clusters whose mass concentration is extremely low and whose number concentration can reach 4000-5000 per cubic centimeter, this type of screen mesh still filters large particle aerosols, and the filtering effect on viruses is still not ideal

Method used

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  • Corona virus protection composite screen window net
  • Corona virus protection composite screen window net
  • Corona virus protection composite screen window net

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A composite screen net for high-efficiency protection against the new coronavirus, the schematic diagram of which is shown in figure 1 shown. Composite window screen 1# has a four-layer structure, which are ultra-fine denier electret melt-blown fiber non-woven fabric layer 2, porous polypropylene spunbond non-woven fabric layer 1, ultra-fine denier electret melt-blown fiber non-woven fabric Layer 2, gauze 3. The grammage of the outer layer 1 of the porous polypropylene spunbonded nonwoven fabric is 20 g / m 2 , the weight of the double-layer ultrafine denier electret melt-blown fiber nonwoven fabric layer 2 is 30 g / m 2 . The thickness of the porous polypropylene spunbonded nonwoven fabric layer 1 is 0.4 mm, and the thickness of the ultrafine denier electret meltblown fiber nonwoven fabric layer 2 is 0.2 mm. The four sides of the composite screen cloth are pressed together to form a complete system.

[0030] Select composite screen net 1#, and evaluate its effect of s...

Embodiment 2

[0032] A composite screen net for high-efficiency protection against the new coronavirus, the schematic diagram of which is shown in figure 1 shown. Composite window screen 1# has a four-layer structure, which are ultra-fine denier electret melt-blown fiber non-woven fabric layer 2, porous polypropylene spunbond non-woven fabric layer 1, ultra-fine denier electret melt-blown fiber non-woven fabric Layer 2, gauze 3. The grammage of the outer layer 1 of the porous polypropylene spunbonded nonwoven fabric is 20 g / m 2 , the weight of the double-layer ultrafine denier electret melt-blown fiber nonwoven fabric layer 2 is 50 g / m 2 . The thickness of the porous polypropylene spunbonded nonwoven fabric layer 1 is 0.4 mm, and the thickness of the ultrafine denier electret meltblown fiber nonwoven fabric layer 2 is 0.2 mm. The four sides of the composite screen cloth are pressed together to form a complete system.

[0033] Choose composite screen window 2#, and evaluate its effect o...

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Abstract

The invention belongs to the technical field of safety protection, and particularly relates to a corona virus protection composite screen window net. The composite screen window net is formed by pressing a gauze, an ultrafine electret melt-blown fiber nonwoven and a nonwoven fabric, wherein the gauze is used as an outer layer of the composite screen window net, and the mesh size is 500 meshes-1500meshes, the nonwoven fabric adopts polypropylene fiber spunbond, the fineness of ultrafine fiber is 0.01-0.1 denier, the weight per unit area of the nonwoven fabric is 18-22g / m2, and the weight per unit area of the ultrafine electret melt-blown fiber nonwoven is 30-50g / m2. The composite screen window net can effectively filter and adsorb virus particles and clusters in the indoor air, filter andadsorb fine and close pollen particles in the outdoor air, has good hygroscopicity and good air permeability and light transmittance, and can guarantee normal air circulation and lighting.

Description

technical field [0001] The invention belongs to the technical field of safety protection, and in particular relates to a composite window net for high-efficiency protection against the 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) 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. [0003] In view of the strong infectivity of the new coronavirus, health and epidemic prevention experts emphasize that the transmission routes of new coronary pneumonia that can be determined at present are ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/52B01D46/00D04H1/498D04H1/4291D06C7/02D06C9/00D06C15/00
CPCE06B9/52B01D46/0036D04H1/498D04H1/4291D06C7/02D06C9/00D06C15/00E06B2009/524
Inventor 陈建民孙剑峰陈晖
Owner FUDAN UNIV