Classification of plastic surface protection film

The plastic surface protection film is a kind of protection film made of plastic, which is also common in our daily life. The PVA coated high barrier film in the plastic surface protection film is coated with PNA coated with nano inorganic substances. The vinyl film is printed and composited. Under the premise of not greatly increasing the cost, the barrier property is not only better than the EVOH five-layer co-extruded film, but also the packaging cost is greatly reduced.

The biaxially oriented polypropylene film is also one of the plastic surface protection films, which is obtained by coextruding polypropylene particles into a sheet and then stretching in both directions. Due to the orientation of the stretched molecules, the film has good physical stability, mechanical strength, air tightness, high transparency and gloss, and is tough and wear resistant. Generally, the thickness is 20-40 μm, and the most widely used one is 20 μ m.

There are also low density polyethylene films, which are generally produced by both blow molding and casting processes. It is a translucent, lustrous, softer film with excellent chemical stability, heat sealability, water resistance and moisture resistance, freeze resistance and boilability. The plastic surface protection film should pay attention to the specification and quality when selecting. Although its flexibility is better, it should be taken care not to be too strong when it is used, otherwise it will crack.www.xmlfilm.com