Types of protective film materials

1. PP material
The protective film was the first to appear on the market. Its chemical name is polypropylene. It has no adsorption capacity and is generally adhered with glue. After being removed, it will leave a mark of glue on the screen, which will corrode the screen over time. It has been basically eliminated.
2. PVC material
The characteristic of the protective sticker is that it has a soft texture and is easy to apply. However, this material is relatively thick and has poor light transmittance, making the screen look hazy. It will also leave glue marks on the screen after being peeled off. This kind of material is also more likely to turn yellow and oily as the temperature changes, and its service life is relatively short. (Barely seen on the market anymore)
Improved version of PVC
An improved version of the protective film made of PVC material solves the previous problems of thickness and poor light transmittance. However, the problem of yellowing and oiling is still not solved, and PVC is not a material that is scratch-resistant. After a period of use, obvious scratches will appear on the protective film, which affects the display effect of the screen and the overall quality of the phone. Aesthetics. In addition, PVC itself is a toxic material containing heavy metal components, and its use has been completely stopped in Europe. This kind of screen protector made of improved PVC material is widely sold on the market. This kind of protective film is cheap, usually around 10 yuan. (Well-known protective film manufacturers have also stopped using it)
3. PET material
Protective film is the most common type of protective film on the market. Mobile phones and tablets use these three layers of PET protective film. The chemical name is polyester film. It is characterized by a relatively hard texture, more scratch-resistant, and will not turn yellow or oily like PVC materials after long-term use. However, the general PET protective film relies on electrostatic adsorption and is prone to foaming and falling off. However, even if it falls off, it can be reused after being washed in clean water. The price of PET material protective film is much more expensive than PVC. The protective stickers made of PET material are exquisite in workmanship and packaging. There are protective stickers specially customized for hot-buying mobile phone models. They can be used directly without cutting.
4. AR material
The screen protector is one of the best known on the market. AR is a synthetic material, generally divided into three layers. Silica gel is the adsorption layer, PET is the middle layer, and the outer layer is a special treatment layer. The special treatment layer is generally divided into two types, AG treatment layer and HC treatment layer. AG is anti-glare. Treatment, the frosted protective film adopts this treatment method. HC is a hardness treatment, which is the treatment method used for high-transmittance protective films. The characteristics of this screen protector are that the screen does not reflect light and has high transmittance (more than 95%), which will not affect the display effect of the screen. The surface of the material has been treated with a special process. It is soft in texture and has strong anti-friction and scratch resistance. It will not cause scratches after long-term use. The chemical material silica gel is used to adsorb on the mobile phone screen, so it will not damage the screen. It does not cause damage by itself, will not leave marks after being torn off, and can also be cleaned and reused. The price is more expensive than PET material.
5. PE material
The main raw material is LLDPE, which is relatively soft and has certain stretchability. The general thickness is 0.05MM-0.15MM, and its viscosity ranges from 5G-500G according to different use requirements (the viscosity is divided differently at home and abroad, for example, 200 grams of Korean film is equivalent to about 80 grams in China). PE material protective film projects include electrostatic film, reticulated film, etc. The electrostatic film uses electrostatic adsorption as its viscosity and is a protective film without glue at all. Of course, its viscosity is relatively weak and it is mainly used for surface protection such as electroplating. Reticulated film is a protective film with many meshes on the surface. This kind of protective film has better air permeability and a more beautiful sticking effect, unlike plain film that leaves bubbles.
6. OPP material
The appearance of the protective film is closer to that of PET protective film. It has greater hardness and has certain flame retardancy. However, its pasting effect is poor and it is rarely used in the general market.
7. OCA material
The appearance of the protective film is no different from other materials, but the protective film made of OCA is produced in Japan. It is now used most on Apple mobile phones. Its brightness and hardness are better than other materials, so OCA It is the most popular material for mobile phone protective films now.