Polytetrafluoroethylene microporous composite membrane haze prevention mask

Abstract

The invention discloses a polytetrafluoroethylene microporous composite membrane haze prevention mask. Bamboo carbon cloth is adopted as the outer surface layer, the polytetrafluoroethylene microporous composite membrane is adopted as the middle layer, a nanometer silver fiber fabric is adopted as the inner layer, a arch-shaped nose cushion made of memory foam material, the outer surface layer and the inner layer are tailored and sealed into a three-dimensional body, and the middle layer is folded into a three-dimensional body instead of being tailored. The mask is high in air permeability and low in ventilation resistance, can filter out bacteria and fine particulate matter with the diameter larger than 0.45 micron or 1.0 micro in air, plays a role in bacteria removal and haze prevention, and plays a role in toxin prevention, mildew prevention and odor prevention, and the dust removal effective rate can reach more than 95%.

Description

technical field [0001] The invention belongs to daily necessities, in particular to a polytetrafluoroethylene (PTFE) microporous laminated film anti-haze mask. Background technique [0002] Anti-smog masks have been widely used by people to protect the human respiratory system from air pollution caused by inhalation of fine particles such as PM2.5 suspended in the air into the lungs. In the case of large factors, there are usually two types, one is an ordinary dust mask with good ventilation performance, and the other is an industrial dust mask with excellent filtration efficiency. Ordinary dust masks such as cotton yarn masks, non-woven masks, activated carbon masks, etc., have good air permeability when worn, but their filtration efficiency for fine particles is very poor, and they have no obvious anti-haze effect; other types such as KN90, N95 grade Although the high-end industrial dust-proof masks meet the dust-proof requirements for filtering most fine particles in ind...

AI Technical Summary

Problems solved by technology

Ordinary dust masks, such as cotton masks, non-woven masks, activated carbon masks, etc., have good ventilation when worn, but their filtering efficiency for fine particles is very poor, and they have no obvious anti-smog effect; other types such as KN90 and N95 Although the high-end industrial dust-proof masks meet the dust-proof requirements for filtering most fine particles in industrial production, they are not suitable for people to use in daily life to prevent haze due to large ventilation resistance and poor air permeability; there is also a filter element that can be replaced For anti-smog masks, although the filtering efficiency of the filter element material is high, the amount of gas filtered through the filter element is small due to the small area of ​​the filter element, and the air leakage effect is formed due to the large air permeability of the outer peripheral part of the filter element, so its anti-smog effect is not ideal.

For example, the invention patent "flat-folding personal respiratory protection device and its manufacturing process" of 3M company in the United States, the 9010 type N95 particle protective mask produced is a disposable industrial dustproof mask, which is made of thickened non-woven fabric The method narrows the pores between the fibers to enhance the ability to intercept dust, but because the fiber diameter of the nonwoven fabric is thicker and the pores between each other are smaller, the air permeability is poor, and it will make people feel short of breath when wearing it for a long time

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