The gap between non-woven masks and medical masks for defense against new crown virus
Medical masks are divided into inner, middle and outer layers. The inner layer is skin-friendly material (common sanitary gauze or non-woven fabric), the middle layer is an isolation filter layer (superfine polypropylene fiber meltblown material layer), and the outer layer is a special material Antibacterial layer (non-woven fabric or ultra-thin polypropylene meltblown material layer).
With non-woven fabric and a three-layer structure, can the dust-proof and moisture-absorbing masks have the same anti-toxic effect as medical masks?
The answer is, of course: different.
With the three-layer structure, what is the difference between a non-woven mask and a medical mask?
The answer is: processing technology. 1. Meltblown process 2. Electrostatic electret process. The same non-woven fabric is used. The difference lies in the polypropylene non-woven fabric using the meltblown process. Polypropylene non-woven fibers are very thin and can block bacteria and fine particles. The electrostatic electret process is used to make the fibers more likely to be electrostatically charged, and to attract small-diameter substances, thereby blocking bacteria and viruses in the air.