What are the inspection standards and items of the melt blown cloth?

- May 27, 2020-

Melt blown cloth detection


There are three items in the test of melt blown cloth, including resistance test, filtration efficiency test and microorganism test. The test of the melt blown cloth shall be carried out in accordance with GB 2626-2006 respiratory protective equipment - self-priming filter type particulate matter respirator and other standards.


Application of melt blown cloth:


PP is the main raw material of the melt blown cloth, and the diameter of the fiber can reach 0.5-10 μ m. These ultra-fine fibers with unique capillary structure increase the number and surface area of the fiber per unit area, so that the melt blown cloth has good air filtration, and is a relatively good mask material. In large and medium-sized medical institutions, in earthquake and flood affected areas, in SARS and avian influenza With the high incidence season of H1N1 virus, melt blown filter paper plays an irreplaceable role with its strong filtering performance.


Melt blown cloth is mainly used for:


1. Filter material


2. Medical and health materials


3. Environmental protection materials


4. Clothing materials


5. Battery diaphragm material


6. Wiping materials

Knowledge development:




Test of melt blown non-woven fabric raw material polypropylene


1. According to the standard:


GB / T 30923-2014 plastic polypropylene (PP) melt blown special material


2. Test items:


(1) Test items of technical requirements: particle appearance, melt mass flow rate, ash, volatile matter, tert butyl peroxide, molecular weight distribution


(2) Detection of health indicators: total number of bacterial colonies, total number of fungal colonies, coliform bacteria, pathogenic pyogenic bacteria