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Mask Non-woven fabric is the raw material used to make masks. Since masks are very important for both medical workers and the general public, the quality must meet the standards, otherwise there will be big problems. What is the test index for textiles? Let's have a look.
1. Filtration efficiency
Filtration efficiency is a key indicator for evaluating mask quality. This is one of the important quality standards for non-woven fabrics, so referring to the relevant standards, it is recommended that the bacterial filtration efficiency of non-woven masks for masks is not less than 95 percent, and the particle filtration efficiency of non-woven fabrics. -Oil particles not less than 30 percent.
2. Respiratory resistance
Respiratory resistance has the effect of improving the size of people who can wear masks and obstruct breathing. Therefore, we need a mask non-woven enterprise to analyze the factors affecting respiratory resistance. The study determined breathing comfort while wearing the mask. During this operation, the recommended indicators of the mask's non-woven fabric are that the respiratory resistance should be less than or equal to 350Pa, and the suffocation resistance should be less than or equal to 250Pa.
3. Health indicators
The health index is another key indicator of non-woven fabric. Suggested test items include primary contaminant bacteria, total bacterial count, coliform bacteria, pathogenic purulent bacteria, total fungi, Escherichia coli, Staphylococcus aureus, Candida albicans, and ethylene oxide residue.
4. Toxicology test
Skin irritation tests are primarily protective tests, which consider people allergic to certain ingredients. The non-woven skin irritation test is mainly performed by cross-section, cutting the appropriate area of the sample, soaking it in saline attaching it to the skin, and then covering it with a patch sticker for identification.
Source: Online/NAN
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