UV acrylic, high-viscosity pet protective film, single-layer transparent low, medium-viscosity pe protective film, can be slit and die-cut
With the popularization and application of protective film, smart product decorations such as screen protective film, PET protective film and mobile phone protective film have also been rapidly developed, especially PET protective film is more important to people. However, in the actual purchase of PET protective film, facing the various PET protective film products on the market, many users actually do not know how to choose a suitable ET protective film, so what are the points to pay attention to when choosing a PET protective film? Which ones? What are the characteristics that cannot be ignored when purchasing PET protective film? 1. Transmittance: This point is more difficult to identify with the naked eye, it is best to use an optical instrument to measure; another stupid way is to cut a small piece of each protective film to be selected and place it in the middle of the computer desktop, and then open it. A blank WORD file, check the whiteness of the area with and without film or the blank WORD file in different film areas (professional point of view is called brightness). Comparing separately, you can select the brightest material whose permeability is the best protective film. 2. Haze: The haze is mainly to be seen when the display is turned off. After the different protective films to be selected are pasted in sequence, the more the screen background color, the smaller the haze. Of course, this material is better. This method makes it easier to see the difference if a black test board is used. Another method is to turn on a fluorescent lamp in a slightly darkened room, tear off the protective film from the top and bottom of the release film, and hold it with your hand between the eyes and the light. Look carefully to see if there is a layer of mist for protection. The uniform distribution in the film is the culprit that affects the haze. The more serious the haze, the greater the haze and the worse the material. Otherwise, the better; note that the haze will affect the transmittance rate, but with Transmittance is two different concepts! 3. Static electricity: because the liquid crystal display is a sensitive device that is afraid of static electricity, the smaller the static electricity when the protective film is attached, the better. The test method is to prepare the protective film to be tested (three-layer material or two-layer material), and smoke a cigarette. Put the soot on the desktop, or get some small paper scraps on the desktop, then tear off the top layer of the protective film (this step is for the 3 layers), and then tear off the protective film with the silicone layer. When this protective film is used, immediately put the used layer (silica gel surface) close to soot or paper scraps to see if the protective film will adsorb these things on the silica gel layer of the protective film and whether the degree of adsorption is strong. The stronger it is, the higher the static electricity generated by this material, the worse the material, and vice versa. As far as I know the entire market, only the full range of materials produced by Fujigo Pinyin Japan will not adsorb at all, and they are anti-static electronic grade materials. 4. Anti-scratch: This is what everyone cares about most, and it is also a problem that has basically been solved by various manufacturers. At present, the anti-scratch materials in the industry are basically the same (2-3H), and the characteristics are good. There are only scratch-resistant and non-scratch-resistant points. The standard method is to use a Japanese Sanling brand with a hardness of 3H (available in stationery stores) and push it 10 times at a 45 degree angle and 500G force. If there is no scratch, it is considered to be up to 3H. Hardness requirements. The simple method is to use a slightly harder metal device or a newly cut nail to scratch the surface of the material with the strength of a normal stylus. If it is very easy to scratch, it is deemed not to be scratch-resistant, and if it is not scratched, it can be deemed to be scratch-resistant. . The cutting and processing manufacturers should pay more attention to the uniformity of the scratch resistance of the whole or batch of materials, because some material manufacturers are still not in place in terms of coating uniformity. 5. Anti-fingerprint: Because the screen size is getting bigger and bigger in recent years, and more and more smart phones are equipped with capacitive screen (touching with fingers is different from the old-fashioned resistive screen, which needs to be drawn with a pen). Protective films are increasingly required to have anti-fingerprint functions. Now such products are expected by more and more customers.