Melt-blown non-woven fabric (melt-blown non-woven fabric) is a product made of high melt index PP (polypropylene) as raw material and composite non-woven fabric. It is the core material of the mask. The diameter of the spinning fiber can reach 0.001-0.005 mm. It has many voids, fluffy structure, good wrinkle resistance, and has a unique capillary structure. The ultra-fine fibers increase the number and surface area of fibers per unit area, so that the meltblown cloth has good filterability, shielding, heat insulation and oil absorption. . Its main uses include air filtration, acid breaking liquid filtration, food hygiene filtration, industrial dust mask production, etc. In addition, it can also be used as medical and sanitary products, industrial precision wipes, thermal insulation materials, oil absorbing materials, battery separators, imitation leather base cloth and many more.
The important role of meltblown cloth as a medical mask:
Medical masks generally adopt a multi-layer structure, referred to as SMS structure: a single-layer spunbond layer (S) on both sides, a single-layer or multi-layer meltblown layer (M) in the middle, and the meltblown layer brings virus filtering to the mask. The main material is the melt-blown non-woven fabric in the middle, referred to as melt-blown cloth. Meltblown cloth is the core material of the mask. The meltblown cloth mainly uses polypropylene as the main raw material. It is melted and filtered by a screw extruder and extruded from the spinneret hole of the nozzle, china meltblown machine and is subjected to high-speed hot air at the exit of the spinneret hole. The flow is sprayed to obtain ultra-fine short fibers that are stretched and formed, and the fiber diameter can reach 1 to 5 microns. It has many voids, fluffy structure and good wrinkle resistance. The ultra-fine fibers with unique capillary structure increase the number and surface area of fibers per unit area, so that the meltblown cloth has good filterability, shielding, heat insulation and oil absorption. It can be used in air, liquid filter materials, isolation materials, absorbing materials, mask materials, thermal insulation materials, oil absorbing materials and wiping cloths, etc.
