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On the characteristics and discrimination of melt-blown cloth

2021-03-02 11:42:00
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Cloth of melt-blown polypropylene as the main raw material, the fiber diameter can reach 0. 5 to 10 microns, the capillary structure of these unique superfine fiber increased the number of fibers per unit area and surface area, thus make melt-blown fabric has very good air filterability, is relatively good mask material, in the medium, medical institutions in the earthquake, the flooding of the affected areas, in SARS, bird flu and H1 N1 virus season, melt-blown filter filtering for its strong performance, play an irreplaceable role. Melt blown nonwovens are mainly used for: "Melt spray cloth", commonly known as the heart of the mask, is the filter layer in the middle of the mask. It has good filtration, shielding, heat insulation and oil absorption, and is an important raw material for the production of masks. Therefore, only qualified meltblown cloth can produce masks to meet the role of virus isolation, and the public can rest assured.


If the goods failed to pass the test, and sold on the market, not only there is no guarantee that are likely to cause harm to human body, the good no matter what kind of goods is need to be tested by was able to move into Tmall mall shopping mall, quality inspection report not only provide a qualification for enterprises in a mall, also for products have played an important role in the icing on the cake, make more consumers to purchase using your product.

The meaning of the product itself is more than a guarantee, but also increased the product itself a degree of trust.


1. Disposable mask test


The detection standard is YY/T 9099-2013 Disable Use Mask. The detection items mainly include appearance, structure and size, nose clip, mask belt, bacterial filtration efficiency, ventilation resistance, microbial index, residual amount and biological evaluation.

The microbial index mainly detected the total number of bacterial colonies, coliforms, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus lysosus, and fungi.

Biological evaluation items include cellular, skin irritation, delayed type hypersensitivity reaction, etc.



2. Use a surgical mask for testing


The test standard is YY/T 0469-2011 "Using Surgical Mask" test standard. The test items include high requirements for airtightness, particle filtration efficiency, filter particle type, bacterial filtration efficiency and permeability.


3. Use a protective mask for testing


The test standard is the technical requirements of protective masks GB19083-2010;

The test items include airtightness, particle filtration efficiency, filter particle type, bacterial filtration efficiency, permeability, surface moisture resistance, flame retardancy, gas resistance, no exhaling valve, etc


4. Common N95 mask test


The detection standard is GB2626-2006 respirator self-filtering anti-particulate respirator, flame retardancy, leakage rate, expiratory resistance, air resistance, dead cavity, air tightness, etc


5. PM2.5 protective mask detection


The detection standards are T/CTCA 1-2015 PM2.5 Protective Mask and TAJ 1001-2015 PM2.5 Protective Mask.

The detection items mainly include apparent detection, formaldehyde, pH value, temperature and humidity pretreatment, decomposable carcinogenic ammonia dye, microbial index, filtration efficiency, total leakage rate, exhalation resistance, connection between the mask belt and the main body, dead cavity, etc


6. Knitted mask testing


The detection standard is FZ/T 73049-2014 "Knitted Mask".

The detection items mainly include appearance quality, internal quality, pH value, formaldehyde content, decompose carcinogenic aromatic amine dye content, fiber content, color fastness to soap washing, color fastness to water, color fastness to saliva, color fastness to friction, color fastness to perspiration, air permeability, odor, etc.

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