Civil masks and medical masks choose what kind of meltblown cloth will be more secure


Release time:

2024-03-14

Civil masks and medical masks choose what kind of meltblown cloth will be more secure? According to the information compiled by the author, we can only make a reference: 1-gb18401 civil masks, this standard is only a general standard for textiles. During the outbreak, our country did not recognize the standard. This mask uses an ordinary meltblown cloth that is not electating.

Civil masks and medical masks choose what kind of meltblown cloth will be more secure? According to the information compiled by the author, we can only make a reference:

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1-gb18401 civil masks, this standard is only a general standard for textiles. During the outbreak, our country did not recognize the standard. This mask uses an ordinary meltblown cloth that is not electating. Usually 3-5 micron bacterial filtration bfe can only reach 30-60 or even lower, basically no bacterial barrier!

2-0969 disposable medical standard mask, using BFE95 resident pole meltblown cloth, this is generally used for disposable medical mask, gram weight 25 grams, fiber generally need to reach 2-3 micron fineness, also need to control the uniformity of spinning to control the pore size between fibers, need to add resident masterbatch to the meltblown cloth and do equipment resident pole treatment, in order to achieve 3-5 micron diameter bacteria filtration to reach 95%.

3-0469 medical surgical mask, grade 0469 meltblown cloth, usually for 3-5 micron diameter bacteria filter bfe to reach 99 or more, for 0.3 micron pfe particle filter requirements to reach 30 meltblown cloth!

For civil masks, enterprises can formulate their own enterprise standards according to 0969 and 0469 standards. As long as the filtering index is higher than the above two standards, the inspection department can admit it!

3-19083 National Medical Protection Standard Mask, that is, we often say n95 medical protective mask. At present, there are many meltblown cloth manufacturers in China, which can achieve n95 high-efficiency and low-resistance meltblown cloth. Some people cannot meet the standard after the increase. It should be noted that the respiratory resistance of the meltblown cloth cannot be used only for the filtering and protective effect, and the respiratory resistance index is ignored!

4-2626 national standard labor protection masks are commonly referred to as kn95. Usually use kn95 grade meltblown cloth. The standard pfe particles are 0.7 microns, and the protection level is lower than N95. Meltblown cloth can reach bfe99 or 99.9 grade, and then add 40-45 grams, usually can meet this requirement!

5-32610 civil standard protective masks have regulations on oil-soluble and non-oil-soluble particles, and the regulations on filtering particles are much higher than kn95!

6-The epidemic situation of the new crown in our country has been very stable. Generally speaking, the masses, especially children and other groups with poor cardiopulmonary function, only need to use disposable medical masks/disposable surgical masks/BFE to realize disposable protective civilian masks above 95. Such protective masks generally use single-sided meltblown cloth, which is parallel in shape and does not need to wear two-layer meltblown cloth protective masks with high resistance to inhalation such as KN95 or N95, prevention of cardiopulmonary dysfunction caused by hypoxia, especially during strenuous activities!

Summary:

The main purpose of the meltblown cloth process is that it can also achieve high efficiency filtration efficiency under the condition of reducing the resistance of suction to a lower extent, especially the meltblown cloth above n95, the function of vfe grade meltblown cloth to the electrode masterbatch matching method, the meltblown material, the spinning efficiency of the meltblown line, especially after the addition of the electrode masterbatch, it will affect the particle size and mesh-forming balance of the spinning fiber. To achieve low resistance and high efficiency is the core technology!


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