The melt-blown method is a method for preparing fibers by blowing polymer melts with high-temperature and high-speed airflow to rapidly draw them. After the polymer chips are heated and pressed into a molten state by a screw extruder, they reach the spinneret hole at the front end of the nozzle through the melt distribution flow channel, and after being extruded, they are refined by two converging high-speed and high-temperature air flows to refine . As an important raw material for masks, melt-blown fabric has become very scarce. In the production of meltblown, the demand for equipment is also increasing. The main material of melt-blown fabric is polypropylene, which has good filterability, shielding, heat insulation and oil absorption. Can be used on medical and health .