The production process of PVC film is not complicated. The ordinary production line is generally composed of a roller press, a printing machine, a back coater, and a cutting machine. The thickness is mainly produced by the direct motion stirring of the roller press, the rotation of the roller and the high temperature rolling The film is only 0.3mm to 0.7mm, at the same time of production and printed on the front side of the film by the printing machine, and attached a layer of back coating on the back of the film by the back coater.
Don’t underestimate this layer of back coating, it is an important guarantee for the high-quality performance of PVC film. The back coating is made of special materials and is a kind of high-energy affinity agent. It is precise because of this layer of back coating that the PVC film can be tightly fused with the medium-density board or other boards. The problem with ordinary face masks is that they cannot solve the problem of peeling off the film. Because the entire production process is carried out at high temperature (the temperature in the roller press reaches 220 degrees), this makes the PVC film with high light resistance and fire resistance, ensuring the high quality of the PVC film.
