Duplex composite filter material for haze-proof masks

Abstract

The invention discloses a duplex composite filter material for haze-proof masks. The duplex composite filter material comprises a looped fabric filter layer (1), a non-woven fabric filter layer (2), and a moisture permeable fabric layer (3), wherein the looped fabric filter layer (1) is positioned at the outer layer of the compound filter material; the non-woven fabric filter layer (2) is positioned between the looped fabric filter layer (1) and the moisture permeable fabric layer (3); the moisture permeable fabric layer (3) is positioned at the inner layer of the compound filter material. The duplex composite filter material disclosed by the invention not only can effectively solve the problem that because a conventional dustproof mask is large in pore diameter and cannot resist micron-sized dust particles so as to achieve a dustproof function, but also can effectively solve the problems that when non-woven fabrics are adopted to make masks, usually the thickness is increased, a multi-layer manner is adopted, or compound hot pressing is performed on non-woven fabrics and other filter materials, such as activated carbon, so as to form masks, so that exhalant CO2 and water cannot scatter, and are gathered in dead cavities; therefore, human bodies can be hurt, and the masks are not suitable for long-term use.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a compound combined filter material for an anti-haze mask. Background technique [0002] With the development of the economy and the aggravation of industrialization, the impact of human activities on the environment is increasing, the air quality is deteriorating, and the phenomenon of smog and haze occurs frequently on a large scale. The composition of pollutants in the air in smog weather is very complex, and the main ones that are harmful to health are aerosol particles with a diameter of less than 10 microns, especially those with a diameter of less than 2.5 microns, namely PM2.5, which are toxic substances such as heavy metals and polycyclic aromatic hydrocarbons. If the carrier of the substance is inhaled for a long time, it will permanently adhere and deposit in the upper and lower respiratory tract and alveoli. Severe cough reflex, drugs and food cannot "drive" it out, ...

AI Technical Summary

Problems solved by technology

However, the pore diameter of these filter materials is too large to effectively prevent micron-sized dust particles. In order to enhance the filtering effect and use strength, non-woven fabrics are often made of thicker, multi-layered or composited with activated carbon and other filter materials to form masks. , the texture is hard when worn, and it is difficult to balance the contradictory relationship between dust-blocking efficiency and breathing resistance, resulting in a stuffy feeling. Hazardous, so it is not suitable for long-term use, and wearing comfort is a problem. Therefore, although the dust-proof effect of this type of anti-haze mask on the market is good, it is not suitable for the daily protection of ordinary people.