The importance of Melt-blown fabric mould to melt spraying budda standard

At present, due to the ongoing epidemic, masks are still in short supply, and the raw material for the production of masks, melting and spraying cloth, has become particularly precious. Manufacturers of melting and spraying cloth are very popular. Due to the stability of the epidemic situation in China, more masks will be sold abroad, and KN95 masks will be needed. The filtering of melt-spraying cloth of raw materials should be more than 95%. How can the melt-spraying cloth produced reach the standard of 95?

The melting spray filter material is composed of polypropylene superfine fibers, which are randomly distributed and bonded together. The appearance is white, smooth and soft. The fiber fineness of the material is 0.5-1.0 m. The random distribution of the fibers provides more opportunities for thermal bonding between the fibers, so that the melting spray gas filter material has greater specific surface area and higher porosity (≥75%). Through the high voltage stationer filtration efficiency, the product has the characteristics of low resistance, high efficiency and high dust capacity.

The key to the production of melting spraying cloth is in the melting spraying mould. The inner wall of the nozzle is smooth and the finish is high, so that even silk can be sprayed out. The smaller the nozzle hole is, the finer the spraying wire is. The nozzle aperture of the newly precision machining is 0.2mm, and the nozzle with a length of 650 is full of thousands of even holes.

The nozzle mold is critical to the 95 standard, but it is not the whole factor. The effect of spraying wire is also related to the whole melting and spraying machine, raw materials, static electricity and extruder. In order to achieve a higher standard of melting spray cloth, the key is to find a high quality nozzle mold.