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Two-layer masks are very inferior. Medical masks must have three layers. Both sides of medical masks are usually spunbonded non-woven fabrics, and the middle is meltblown fabric. A good meltblown cloth is heavy enough. It looks white rather than transparent. It looks a bit like paper. The thinner the meltblown cloth, the worse the protective effect. The melt blown layer will melt when it encounter...
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Non woven fabric is a general term, because PET can also be used as non woven fabric, but PP non woven fabric limits the types of plastics. In principle, there is no difference between them. SMS is added on the basis of two spunbond production lines, a meltblown M production line. PP non woven fabrics are spunbond non woven fabrics, and PP refers to the raw materials for the production of non wove...
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Both non-woven and meltblown masks have their own advantages, but in terms of protection, meltblown masks are better. The middle layer of the medical mask is a melt-blown non-woven fabric, which can filter bacteria and viruses in the droplets, and is a kind of ultra-fine electrostatic fiber cloth. The role of masks containing meltblown cloth: The main material of medical masks with virus filtering...
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The mask has a three-layer structure. The inner and outer layers are non-woven fabrics, and they are not the same. Generally, the inner layer is made of skin-friendly and soft SSS non woven fabric, which makes it more comfortable to wear. The middle layer of the mask is the meltblown cloth. The strength of the meltblown cloth is not strong, and the thickness is very thin. It can be torn apart by h...
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1. Raw materials Melt-blown PP is modified on the basis of ordinary PP. After modification, PP has higher melt fat and stable fluidity, while ordinary PP melt has uneven fluidity, and some excessive drafting may easily cause agglomerate polymerization. It makes the fiber thickness uneven and affects the air permeability and filterability of the meltblown cloth. 2. Production process Melt-blown clo...
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We know that melt blown cloth is the core material on protective equipment such as masks and plays a major filtering role. In order to achieve effective filtration, the melt blown cloth needs electrostatic electret treatment, in which case droplets etc. will be adsorbed on the melt blown cloth. So if there is static electricity on the meltblown cloth, will it exist for a long time, or is it said t...
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The water electret is an electret process for making the meltblown cloth electrostatically charged during the production of the meltblown cloth. The process can be that the meltblown cloth is saturated with static electricity and the electrostatic electret time is long. The reason why melt blown cloth has higher filtration efficiency is because it adds electrostatic electret technology in the prod...
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There are 32 flow and 85 flow in the melt blown cloth detection parameters. What does this parameter mean? The quality of melt blown cloth mainly depends on the particle filtration and bacterial filtration efficiency. The specific filtration efficiency of melt blown cloth needs to be tested with a melt blown cloth testing instrument. The specific process will not be introduced in detail, but I wil...
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Material: polypropylene fiber Raw material characteristics: 1. Lightweight, the lightest among all chemical fibers. 2. High strength, good elasticity, abrasion resistance, corrosion resistance, good abrasion resistance and resilience, the strength is similar to polyester, and the resilience rate is much larger than that of polyester; chemical resistance is better than ordinary fibers. 3. It has el...
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Sofa non-woven fabrics are mainly PP spunbonded non-woven fabrics, which are made of polypropylene as the main raw material and are composed of fine fibers. The finished product is soft and moderately soft and comfortable through point hot melt bonding. High-strength, chemical-resistant, anti-static, waterproof, breathable, antibacterial, non-toxic, non-irritating, non-mold, and can isolate the pr...
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Disposable rags! I beg you to enter! Disposable wipes, really easy to use!!!!! Are you still using rags that can last a long time? The new rag started to be greasy after two days, and it still can’t be washed clean!!!! It feels dirty when used to wipe the kitchen countertop!!! But I am reluctant to throw it away! I beg you to buy a disposable rag!!! The price is similar to kitchen towels, but it i...
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The main color of PP polypropylene is white and transparent, and the products are made all white. What is black meltblown and how is it made? There are actually different ways to achieve black meltblown non woven fabric: One way is to add black masterbatch, which is achieved by adding carbon black. If it is used on the face mask, then need to add the environmental protection carbon black, and the ...
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