Non-woven composite material for filter respirator

Abstract

The invention provides a non-woven composite material for a filter respirator.The non-woven composite material comprises a first non-woven fabric layer, a second non-woven fabric layer and a third non-woven fabric layer sequentially from top to bottom, wherein a first antibacterial layer and a polytetrafluoroethylene micro-porous membrane layer are sequentially arranged between the first non-woven fabric layer and the second non-woven fabric layer, a second antibacterial layer and a detachable filter layer are sequentially arranged between the second non-woven fabric layer and the third non-woven fabric layer, the first antibacterial layer is a porous nano titanium dioxide silver-loaded antibacterial agent coating with the particle size of l5nm-50 nm, and the second antibacterial layer is a biological polypeptide antibacterial agent layer.The non-woven composite material for the filter respirator can effectively filter very fine particles and meanwhile has high bacterium and virus resistance performance and good air permeability and adsorbability.

Description

technical field [0001] The invention belongs to the field of non-woven fabrics, in particular to a non-woven fabric composite material for filter masks. Background technique [0002] With the rapid development of the economy, the pollution caused by human beings to the environment is becoming more and more serious, and there are more and more smog phenomena in our country. People are paying more and more attention to the impact of PM2.5 particles on their health. PM2.5 refers to particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 μm in the ambient air. After fine particulate matter enters the human body to the alveoli, it directly affects the ventilation function of the lungs, making the body prone to hypoxia, and at the same time, the particulate matter will affect the respiratory system. It causes damage to the cardiovascular system, causes asthma, lung cancer, cardiovascular disease, birth defects and premature death, and is very harmful t...

AI Technical Summary

Problems solved by technology

However, the above-mentioned non-woven materials for masks have more or less defects, such as not good enough antibacterial properties, filter performance needs to be improved, etc., and cannot meet the increasingly stringent requirements of the public and the environment.