With the continuous development of digital products such as mobile phones, cameras, and computers, the protective film has gradually become a generic name for screen protective films, and its function in the field of screen protective films is also varied, from the earliest high-definition scratch-resistant film to the present Anti-fingerprint film, anti-glare film, mirror film, anti-theft film, tempered glass film and UV protection film and other functional protective film favored. The materials from the earliest PP materials to the tempered glass materials that are popular nowadays have undergone continuous development. They have gradually been accepted by the majority of digital communities and gradually become one of the priority choices for digital products today.
Protective film material of different points:
1, PP material
PP protective film is the earliest on the market, this material is actually the material of the plastic bag we usually use, the chemical name is polypropylene, without any adsorption capacity, generally glued to stick, tear off will be in The glue marks left on the screen will corrode the screen for a long time. Now this material has been basically eliminated by a large number of protective film manufacturers, but some street vendors are still selling, we must pay attention!
2, PVC material
PVC material protector is characterized by its own soft texture, and easy to paste, but this material is relatively thick, poor light transmission, making the screen look more embarrassing. It will also leave a mark of glue on the screen after it is torn off. This material is also relatively easy to turn yellow with the temperature change, the service life is relatively short. So basically this kind of protective film can't be seen on the market. What can be seen on the market today is a modified protective film of PVC, which solved the previous problem of heavy weight and poor light transmission but still cannot solve the problem of easily turning yellow oil, and it is necessary to pay attention to PVC. Material does not have the ability to scratch, after a period of time will appear on the protective film is very obvious scratches, affect the screen display also affects the overall appearance of the phone. In addition, PVC itself is a toxic material, containing heavy metals Ingredients have been completely suspended in Europe. This PVC modified version of the screen protector material is widely sold in the market, is characterized by a very soft feeling in the hands, the price is very cheap. The price is generally around 10 yuan, a Some no-name brands have even traded at 5 yuan, and many well-known protective film manufacturers have also stopped using this material.
3, PET material
PET material protective film is the most common kind of protective film on the market. In fact, we usually see plastic coke bottles that use PET material, also known as Po special bottles. Chemical name is polyester film. PET material protective film is characterized by The texture is harder, it is scratch-resistant, and it will not turn yellow like PVC when it is used for a long time. However, the protective film of PET is usually electrostatically adsorbed. It is easy to foam and fall off, but even if it falls off in the clear water Wash it again and use it again. The price of PET protective film is much higher than that of PVC. Many foreign famous brands of mobile phones are shipped from the factory, randomly configured PET material protection stickers, using PET material protection paste workmanship and packaging is more beautiful, there is a special protection for mobile phone models to build protection stickers, do not need to be cut Use directly.
4, AR material
AR material protector is the best screen protector on the market. AR is a synthetic material, generally divided into three layers, silica gel for the adsorption layer, PET for the middle layer, the outer layer is a special treatment layer. Special treatment layer is generally divided into two, AG treatment layer and HC treatment layer, AG is anti-glare Treatment, frosted protective film is the use of this treatment. HC is a hardness treatment, is a high transmittance protective film used in the treatment. This type of screen protective film is characterized by the screen is not reflective, high transmittance (95% Above) will not affect the display of the screen. And the surface of the material is treated with a special process. The texture of the material itself is softer, and it has strong anti-friction and anti-scratch abilities. It will not appear scratches even if it is used for a long time. The adhesive is made of chemical material silica gel adsorbed on the screen of the mobile phone, so it will not The screen itself does damage, and it won't leave an imprint after it is torn off. It can also be reused after cleaning. It can also be easily bought in the market and is more expensive than PET material.
5, tempered glass material 2.5D arc edge process
Tempered glass is immersed in general glass in the nitrate (KNO3) melting liquid and replaced by ions, which greatly increases the surface density of the glass and also increases its strength, internal structure, elasticity, flatness, toughness and impact strength, etc. . There will be no distortion during operation, which is very suitable for the protection of mobile phone screens.
Protective film function
1, AR anti-reflective anti-electromagnetic radiation protective film
AG anti-reflective anti-electromagnetic radiation protection film basically uses pet material, three anti-scratch anti-electromagnetic radiation structure. Protective film thickness: about 0.25mm. Anti-reflective, anti-electromagnetic radiation, effective filter UV. Electrostatic adsorption technology, without glue can be pasted many times. Extremely high abrasion resistance, superior scratch resistance and durability. Transparency reached 99%, clear and vivid picture.
2, AG frosted protective film
With a three-layer structure, the surface layer is a frosted layer, which can effectively resist the fingerprint invasion, and the fingers will not leave traces; even if sweat and other liquid residues are left, you can clean it with a hand wipe to ensure the maximum visual effect of the screen. . The material is processed through a special process, which can effectively prevent reflection and reduce the problem of reflection in the sun or the screen.
3, mirror protective film
The earliest originated in Japan. When the main screen backlight goes out, the protective film acts as a mirror. When the backlight is turned on, text and images can be normally displayed through the film. The film is divided into 5 to 6 layers, and one of the layers is subjected to aluminum evaporation. Use this layer to reflect external light to achieve the mirror function. Mirror protection film
4, privacy protection film
Using microlouver optical technology, the screen data is designed for users to read from the front 60-degree angle of view. When the viewing angle is greater than 60 degrees, the contents on the screen cannot be seen, and when the viewing angle is 30 degrees, the screen contents are blurred State. It is suitable for the protection of commercial secrets and personal privacy rights. The existing anti-peeping film products are composed of the original anti-reflective film, anti-ultraviolet film, mirror film, and anti-glare film. .
5, high-definition scratch protection film
Three-layer structure: PET low-viscosity protective film (face material) + release film (substrate) + protective layer. The surface of the film is treated with SMART technology, which is abrasion resistant, scratch resistant and scratch resistant. The PET material is a three-layer hard film with high hardness, which mainly prevents handwriting from scratching the screen. High-transparency material, which is closest to the screen material of the mobile phone, makes the refraction and reflection angles of light uniform, so as to achieve 100% transmittance. Divided into scratch resistant 2H conventional film --- not wear-resistant trace damage, 4H high resistance type --- wear-resistant trace damage and 5H carbon-grade wear-resistant type --- super wear-resistant trace damage. The difference is that 4H and 5H are coated with a solidifying ultrathin crystal coating on the protective layer. Today's advanced protective films such as Apple's IPHONE series of screen protectors are 6H scratch-resistant structures. The 2H conventional film is generally the original film delivered at the time of shipment from the cell phone. Functional protective film is a new generation of products. It combines the younger generation's pursuit of fashion and the combination of practical performance. More and more young people now like to play "cool" to play "personality." The screen protection film for mobile phones is not only required to be simple and dust-proof and scratch-resistant. Users are more likely to expect that a single product can play a different personality. In the appearance of the protective film is also divided into transparent, colored, colored matte, crystal paste, etc., according to the brand awareness and size of different prices.
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