Non-woven medical masks is an important raw material for manufacturing masks, because masks are used in medical and health materials, so the quality is sure to meet the relevant standards, today Lai Chi non-woven small taping us look non-woven medical masks detection the four indicators.
First, the filtration efficiency
Filtration efficiency is a key indicator of quality assessment masks. This is also one of the important non-woven quality standards, reference standards, recommended non-woven masks bacterial filtration efficiency should be not less than 95%, while non-oily particulate filtration efficiency for particulate filtration efficiency of not less than 30%.
Second, respiratory resistance
Respiratory resistance, for when people wear masks, hinder breathing influence of size. Therefore, non-woven masks breathing resistance decided to wear a mask when breathing comfort, in this non-woven masks recommended indicators for the inhalation resistance should ≤350Pa, expiratory resistance should ≤250Pa.
Third, health indicators
Health indicators is naturally non-woven masks another important key indicators. The test items as recommended Bioburden, the total number of colonies of bacteria, coliform bacteria, pathogenic pyogenic bacteria, the total number of fungal colonies, Escherichia coli, Staphylococcus aureus gold color, Candida albicans, ethylene oxide residues and the like.
Fourth, toxicology tests
Skin irritation test, mainly on account of protective material allergy test test some of the crowd. Reference GB 15979 of the regulations. Skin irritation test mask Nonwoven transverse mode is mainly used, a suitable sample cut area, wetted with saline applied to the skin, and then covered spot test sticker.
These are non-woven medical masks the detected four indicators, four detection index above, the filtration efficiency of nonwoven masks is very important. Lai Chi nonwovens manufacturers to remind customers and friends citizen, in the selection of non-woven fabric, be sure to choose a good quality, strong performance filtration masks or non-woven materials.
Dongyang City, Lai Chi Environmental Protection Technology Co., Ltd. now has annual output of 40 million square meters of elastic nonwoven production lines, SSS non-woven production line, SMS nonwoven production lines and a range of elasticity deep-processing equipment, specializing in the production and sales of non-woven fabrics, textile bond nonwoven fabric, stretch woven fabrics, medical non-woven, non-woven fabric is your trusted manufacturers.
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