Functionally speaking, the protective film is to put a film on the physical objects that we want to protect. Nowadays, there are AR protective film, AG frosted anti-reflective film, mobile phone mirror film, peeping film, high-definition scratch-resistant film and other functional protective film.
AR 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. This is more popular in the market, uneven quality, outstanding should be the GLAUKE brand.
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.
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, the 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.
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. .
The combination of TPE plastic and rubber has the advantages of both.
This protective film has the advantages of high elasticity, high strength, high toughness, non-toxic environmental protection, etc., scratch-proof, waterproof and so on. Easy to tear off. The liquid protective film adopts the latest development trend of the international protective film industry - liquid protective film materials, which can not only reduce the amount of materials, but also save resources, and reduce the waste generated during the demolition in the future. Saving materials is an important part of energy conservation and environmental protection.
The method for forming a liquid protective film is various, and a protective film can be rapidly formed after ejection, and closely adheres to the surface, particularly for surface protection of irregular metal objects, aluminum parts, copper products, and tools.
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. Advanced protective films such as Glauke, OK8, BENKS, 180 degrees and Cardens are now available in 4H and 5H scratch-resistant constructions. The 2H conventional film is generally the original film delivered at the time of shipment from the cell phone.
The main production was initially concentrated in Japan, the United States, and other industrialized countries such as Europe. Due to the earlier industrialization in Europe and the United States, it entered the requirements for the surface protection of products earlier than in Asia, so as to reduce the flow from the factory to the market, The loss of surface scratches encountered during the transportation, handling, warehousing, and even display of the product. The European brand is unique in the protective film of rubber-based glue, and because of its characteristics, the protective film of rubber-based glue has so far been a complex industry in the post-processing of stainless steel, aluminum, and even some plastic parts. Japan started earlier in the development of non-toxic PVC materials, PET materials, and AR materials, and its technology is advanced. Therefore, the development of mobile phone screen protection films in Japan and South Korea is also relatively rapid. Japan and South Korea mainly produce middle-to-high-end mobile phone protective film and export PVC, PET and AR materials to foreign countries. Mainland China is a big consumer of mobile phones and has many production and sales of mobile phone screen protection films. After several years of development, it has been able to produce higher-end protective films. Although there is still a certain gap between protective films from Japan, it is currently In fact, there has been a tendency to completely replace Korean membranes. In the past two years, protective film manufacturers in Japan and Korea have already started production or set up joint ventures in the mainland. As far as the production of mobile film in China is concerned, it is mainly operated as a non-core business of some tape factories, electronic material factories, and protective film factories. Less manufacturers specializing in the production of protective film, because the production of protective film and the coating process is relatively complex, many technologies need to be breakthrough, and a good investment in a blown film and coating line, so the real production of protective film There are not many manufacturers, and it is even less possible to make a good original film. Therefore, most of the factories only stay in the secondary and tertiary processing stages of the protective film and belong to the lower stage in the entire protective film industrial chain. In terms of regional distribution, it is mainly distributed in Shenzhen, Foshan, Dongguan, and parts of Zhejiang, Shanghai, and Jiangsu in Guangdong. However, with the popularity of today's touch screen mobile phones and the concern for 3G mobile phones, the protective film market has also attracted more business attention. Many manufacturers have also begun to produce high-end protective film to meet the young people's fashion pursuit.
Protective film in use can be divided: plastic protective film, digital product protection film, automotive protective film, household protective film, food preservation protection film. However, with the popularity of mobile phones and other digital products in China, the protective film has gradually become a generic name for screen protection film, and its function in the field of screen protection film is also varied, the first high-definition scratch-resistant. Materials from the earliest PP materials to the current popular AR materials, the middle has experienced more than five years of development, and slowly accepted by the majority of mobile phone groups.
The development of silicone is based on the development of acrylic adhesives, as the demand for surface protection of 3C products has been increasing in recent years, and a large part of these applications have entered the so-called aftermarket, that is, the stores, and then consumed. DIY himself. This part of the application, with particular emphasis on the use of exhaust, so that in the film process, to avoid the occurrence of bubbles, and silicone meets the needs of this part of the consumer, silicone is used for the production of PET substrate The main screen protection stickers. (commonly used silica gel adsorption)
As the name suggests, rubber-based glue is mainly made of rubber, which is mainly produced in Europe and certain Japanese protective film manufacturers. The main characteristic is that the tolerance of the product is relatively large, which means that a product with a viscosity can be applied to the product. The surface is from smooth to rough, and the application range is much larger than the protective film of acrylic glue. Therefore, in general, the viscosity of the rubber type protective film is only about four stages, and the protective film of acrylic glue is about 20 g per interval. 25mm must be classified as a single product, so acrylic protective film variety of protection, for the company's stocking, inventory, application, rubber-type protective film is much simpler. The second advantage of the rubber type protective film is also because it is more tolerant, so it can use higher-viscosity protective film, and therefore it is particularly suitable for post-processing complex applications such as stainless steel plate, aluminum plate and other stamping processes.