Polyester film (PET)

- Jan 10, 2019-

The polyester film is a film material made of polyethylene terephthalate as a raw material, formed into a thick sheet by extrusion, and then biaxially stretched. It is a colorless, transparent and lustrous film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature and low temperature resistance, chemical resistance, oil resistance, air tightness and aroma retention. Good, it is one of the commonly used barrier composite film substrates. However, the price of the polyester film is relatively high, generally 12 μm in thickness, and is commonly used as an outer layer material for retort packaging, and has good printability.