Plastic firm is widely applied in packaging. It can be used in food packaging, electrical product packaging, commodity packaging, clothing packaging and so on.
They have one thing in common, that is color printing on the surface. But for food packaging, moreover it need to multi-layer composite or Vacuum aluminum plating operation.
Therefore the Plastic firm need to have high free energy on surface and strong moisture tension so that it will benefit the adhesion of the printing ink, adhesive and aluminium coated. In the Plastic firm production process of the take-up and quick package, which requires the firm surface has a certain of frictional that can prevent the firm from adhesion or slip. When the firm is applied to the electric appliance and electronic products, it is required to have a certain of anti-static nature.