Do you really know the structure of KN95 mask? _ Fiber
Original title: Do you really understand the structure of KN95 mask? Do you really know the structure of KN95 mask? Medical masks and protective masks are non-woven materials, composed of directional or random fibers, generally multi-layer structure,KN95 Mask for Epidemic Prevention and Control, usually referred to as SMS structure (2 layers of S layer and 1 layer of M layer). At present, KN95 Face Mask with Five Layers ,Virus Prevention Mask 3 Ply with Earloop, the highest number of layers in China is 5, namely SMMMS (2 layers of S and 3 layers of M). S represents a Spunbond layer and M represents a barrier layer or a Meltblown layer M, both of which are composed of polypropylene (PP). Melt-blown nonwovens are used as the filter layer in the M layer. Because the fibers are randomly distributed and have complex three-dimensional pores, the M layer is composed of superfine fibers with large specific surface area and strong adsorption capacity for particles. The fibers of the melt-blown filter material are randomly distributed A large number of tiny pores are formed, and the pores are evenly distributed, the filtering resistance is small, and the filtering efficiency is high, so that the filtering performance of the non-woven medical protective mask is far superior to that of the traditional gauze mask. The SMS non-woven fabric is mainly made of polypropylene PP (with natural bacteriostasis and hydrophobicity),free shipping disposable coverall, and the fiber diameter can reach 0.5-10 um. These superfine fibers with unique capillary structure increase the number and surface area of fibers per unit area, so that the melt-blown fabric has good air filtration and is a good mask material. Therefore, the laser marking surface is a non-woven fabric made of S-layer polypropylene. Return to Sohu to see more Responsible Editor:. zjyuan-group.com
Other Submission of Carrie
Original title: Interpretation | How to distinguish between medical and non-medical disposable protective suit? Recently, with the development of COVI...
Carrie Details
Name : |
Carrie |
Email : |
Carriel@sh-ceramics.com |
Joined Date : |
03-Feb-2023 06:09 am |
City : |
|
State : |
|
Pincode : |
|
Address : |
|
Follow us on Facebook : |
|
Follow us on Twitter : |
|
Website Name : |
Other Related Submission Of People & Blogs
know about the latest trending clothes . Wear clothes which are most fashionable in2024
Korean aesthetic outfits are a fusion of traditional elegance and modern flair, reflecting the rich cultural heritage and contemporary fashion trends ...
UNDERSTANDING THE DYNAMICS OF SEO MAINTENANCE
In The Role of SEO Maintenance, where competition is fierce and attention spans are fleeting, the impor...
Freedom Refined Sunflower Oil, the flagship brand of Gemini Edibles and Fats India Ltd (GEF India), has been ranked the No.1 brand by volume sales in ...
Shelters by Jesus, The Story Continues by Pastor Richard Berry follows after the words of Christ, advocating for charity and kindness, especially for ...