As epidemic prevention and control enters the “post-epidemic era”, the shortage of masks and other materials has basically been solved, and some equipment manufacturers have begun to turn to claims of “bacteria-resistant and virus-resistant masks” etc. Functional product development. Related issues such as how to verify the kn95 mask filter membrane product and whether it can achieve its claimed functions have triggered industry discussions and social concern. The Device Evaluation Center of the State Food and Drug Administration has conducted multiple investigations and studies on this issue and held expert seminars to solicit opinions from experts in relevant industries. Experts participating in the discussion included experts in the research and development and production of meltblown cloth, clinical infection control, virology, disease control, protective product testing, drug review and other fields.
Masks are mainly divided into three categories: disposable masks, surgical masks, kn95 mask filter membrane Face mask. Drug regulatory authorities in various countries supervise and manage masks as devices to ensure the reliability and quality of the products.
The diameter of the finished melt-blown cotton fiber is about 0.5-10 microns, while the diameter of the spunbond layer fiber is about 20 microns. Because the fibers are very fine, meltblown cotton has a large surface area and can absorb various microparticles. What’s even more amazing is that meltblown cotton is relatively breathable, so it is a good material for making mask filters, but spunbond non-woven fabric is not.
The kn95 mask filter membrane produced by the manufacturer uses imported raw materials and has a full set of advanced production equipment. The clean room and independent composite slitting workshop ensure the production quality of PTFE film; imported production testing instruments are used to test the quality of PTFE film, and it has passed SGS testing and certification, and ISI testing and certification. Interested parties can enter the store and contact us.
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