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What Are The Standards For Meltblown Cloth Inspection Reports?

May 24, 2020

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The requirements for meltblown fabrics for masks for different purposes are also different. Meltblown fabrics use polypropylene as the main raw material and the fiber diameter can reach 0.5-10 microns. These ultrafine fibers with unique capillary structures increase the unit area The number and surface area of fibers make the melt-blown cloth have good air filterability and a good mask material. In large, medium and small medical institutions, in earthquake- and flood-affected areas, in the high incidence of SARS, bird flu and H1N1 During the season, the melt-blown filter paper plays an irreplaceable role with its strong filtering performance. The main use of meltblown cloth:

1. Filter materials; 2. Medical and health materials; 3. Environmental protection materials; 4. Clothing materials; 5. Battery separator materials; 6. Wipe materials; Melt-blown non-woven raw material testing-polypropylene 1,

According to the standard: GB / T 30923-2014 plastic polypropylene (PP) special material for melt blowing 2. Test items: (1) Technical requirements Test items: particle appearance, melt mass flow rate, ash, volatile matter, and tert-butyl Peroxide, molecular weight distribution (2) Hygienic index detection: total bacterial colonies, total fungal colonies, coliforms, pathogenic pyogenic bacteria

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Melt-blown non-woven fabric auxiliary material testing-adhesive interlining 1, according to the standard: FZ / T 64041-2014 melt-blown fiber web nonwoven adhesive interlining 2, testing items: (1) physical and chemical properties testing: melting temperature deviation, melt flow Rate deviation, moisture content, ash, mass deviation rate per unit area, longitudinal breaking strength, peeling strength before and after washing, appearance change of combined sample after washing, hot melt adhesive penetration of combined sample (2) Inspection of appearance quality: Local performance defects, dispersive defects, allowable number of segments per roll, length detection of melt-blown non-woven products 1. According to standard: FZ / T 64034-2014 Spunbond / meltblown / spunbond (SMS) method nonwoven Test items: (1) Appearance quality test: cloth appearance, holes, impurities, odors, micropores, crystal points, frit, stiff wire, unreinforced area, thin mesh, width deviation, color difference, joint quality (2) Intrinsic quality testing: mass deviation rate per unit area, longitudinal breaking strength, transverse breaking strength, longitudinal elongation at break, hydrostatic pressure, and air permeability (3) Microbial index testing: total bacterial colonies, total fungal colonies, coliforms, In addition to being used as medical and sanitary fabrics, pathogenic pyogenic bacteria meltblown fabrics are mainly used in industrial fabrics to produce insulating materials, filter materials, geotextiles, covering fabrics, cement bags and other products, and agricultural fabrics In the production of irrigation fabrics, thermal insulation curtains, seedling raising fabrics and other products, home decoration fabrics mainly produce tablecloths, bed sheets, bed covers, curtain fabrics and other products. In addition, melt-blown non-woven fabrics are also used in the production of sound insulation materials, space cotton, linoleum and so on.

Source:http://www.up-resin.com/

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