The transparent plastic box will be covered on the surface. This is a thin layer of adhesive tape. The main function is to prevent the surface of the plastic box from being scratched and worn. In the process of slicing the plastic box, the film will be covered at the same time. The film covered with the film will be processed through multiple parts, beer, printing, hot dyeing, and each part will be rubbed by the machine. The film on the surface of the plastic box can be very protective at this time.

The protective film of the plastic box is different from the film of the paper product. The paper product is coated on the plastic film by a roll coating device, heated by a hot press roller to soften the film, and then coated. The printed matter of the primer and the film are pressed together to form a film-in-one film product. The raw material of the plastic box is film. The most original state of the film is a roll. During the cutting process, the heated roller is rolled to make it flat. During the rolling process, the film will cover the film surface at the same time. . This is the same principle as the film coating.

PET plastic box, PVC plastic box is the most common transparent plastic box, in the later printing, hot, beer, dip process can play a role in blocking the machine. If it is in the printed plastic box, it is also necessary to cover a special electrostatic film. Film contains static electricity in nature because of its molecular structure and some added components. Extraordinarily PVC film, the surface of the static value is very large, the human hand will be electrically touched. Such electrostatically charged film cannot be printed normally, so UV printing must be covered with an antistatic film. This is also the difference between the plastic case and the film of other packaging products.