The types of protective film are divided according to the purpose of the protective film. The protective film can be divided into electronic product protective film, vehicle protective film, household protective film and food preservation protective film, etc.
The material of the protective film, the material of the protective film mainly includes the following, which are:.
PET material: refers to polyester film, which is relatively hard, so it is more scratch-resistant. Even if it is used for a long time, it will not emit oil. PET protective film is generally adsorbed on the surface of the protected surface by means of static electricity, so it is easy to fall off or leak. Soak, but it does not need to be cut and can be used directly.
AR material: it is a composite material, which can be divided into three layers, the bottom layer is silica gel layer, the middle layer is PET, and the surface is a unique treatment layer, and the unique treatment layer can be divided into AG treatment layer and HC treatment layer. , AG is solved by anti-glare, HC is solved by strength, this kind of material is characterized by no reflection, high light transmission, relatively soft texture, good anti-friction and scratch resistance, it is made of silica gel Adsorbs on the screen and does not leave marks after peeling off.
PE material: the texture is relatively soft, with a certain degree of stretchability, and there are different levels of viscosity, which can be selected according to the needs. The protective film made of PE material can also be divided into electrostatic film, textured film, etc.
OPP material: close to PET protective film, very strong, and has a certain flame retardancy, but the sticking effect is relatively poor, so it is not used much, rarely.
So far, the types of protective film products on the market have been quite rich. According to the application field, the key points can be used for the surface of metal products, the surface of plated metal products, the surface of plastic products, the surface of electronic products, the surface of vehicle products, and the surface of signage products. , Profile product surfaces and other product surfaces.
It can be seen that protective films are widely used in different industries, so when choosing, what should be the norm? First of all, when packaging different items, due to their different surface characteristics, different stickiness is required.
In other words, when choosing a protective film, first determine the appropriate viscosity specification based on the characteristics of the protected item. The important factors that affect the viscosity include moisture, molecular movement and spread, and penetration. For example, some substances will only be in contact with the protected object Close contact can only be achieved after the surface of the sticky object is well moistened.