Trimmed and pressed masks are joined in strings and require links for trimmed edges. At this time, a mask is formed. Earband welding is the step of welding the earbands to the semi-finished masks produced by the mask machine. According to the process requirements, it is divided into inner ear belt type, outer ear belt type and belt type. Fragile non-woven fabrics generally do not use high-temperature sterilization methods, but use colorless gas ethylene oxide to kill bacteria, mold and fungi.

Send a batch of masks into the sterilization room, and then pass through ethylene oxide gas after reaching a certain concentration to complete the ethylene oxide sterilization process. Then, air and nitrogen should be introduced into the disinfection room to dilute and evacuate the ethylene oxide, so many times until the residual amount of ethylene oxide on the surface of the mask reaches the standard. Ethylene oxide will not damage the sterilized items and has strong penetrating power, so most items that are not suitable for sterilization by conventional methods can be sterilized and sterilized with ethylene oxide. For example, electronic instruments, optical instruments, medical equipment, fur, cotton, chemical fiber, plastic products, endoscopes, dialysis instruments and disposable medical supplies. China Ethylene Oxide Treatment Factory is one of the important low temperature sterilization methods.

After sterilization, Custom Ethylene Oxide Treatment, a common sterilizing agent, will remain on the mask. It is a flammable, explosive and toxic gas with an aromatic ether smell. The relative density at 4°C is 0.884, the boiling point is 10.8°C, and the density is 1.52g/cm.

Disposable masks mainly use the principles of ultrasonic welding and automatic edge sealing to complete the composite molding of multi-layer materials for flat masks. The mask main machine is a machine for automatic production of multi-layer material flat masks. It can use 1 to 4 layers of PP spunbond nonwoven activated carbon and filter material. The entire machine finished product from raw material feeding to nose wire insertion, edge banding and cutting is single-line automatic operation.