PE protective film selection techniques

　　PE protective film according to the demand of the market is constantly expanding, but some unscrupulous profiteering manufacturers for mass production, the supply of low quality, low imitation, fake and cheap copycat goods, user rights can not be guaranteed. So, Wuxi protective film to remind the majority of users: the selection of protective film must master some distinguish material purchasing skills, not because of price concessions and be deceived by unscrupulous businessmen eyes, causing unnecessary losses.

　　First: see through too much

　　This is very difficult to identify with the naked eye, is best measured using optical instruments, there is a relatively simple method of point, is to choose each protective film were cut a small piece on the desktop computer and then open one by one middle stick, create a new WORD document on the computer, check the computer on the film and film the blank area or different film area file WORD white degree (professional point called brightness). By contrast, you can choose the brightest material, which is the best protective film.

　　Second: look at fog

　　1, PE protective film haze to see how? First of all to the display off, the same way, protective film sequentially stuck open, more screen of the haze is smaller, the smaller the haze of the material better, if the test board is more black easy to see the difference.

　　2, there is a kind of method is in a slightly dark room, a fluorescent lamp, the protection film peeling on hand from the film after hold in between the eyes and the light, you look at whether there is a layer of mist that evenly distributed within the protection film, that is the influence of the culprit haze this kind of fog, the fog that something more serious, the greater the degree of material, the worse, and it shows better.

　　Third: look at static electricity

　　Because the LCD display is afraid of electrostatic sensitive devices, with electrostatic protective film is as small as possible, testing method is a protective film ready to be tested (3 layers or two layers of material), a cigarette ash knock on the desktop, or get some small scraps of paper on the table, the top layer of protection film and tore off the protective film (for the 3 layer material of the steps, then tear) protective film with the silica gel layer, tear off the protective film when using the layer immediately (silica gel surface) to ash or scraps of paper, see whether these things will be a protective film adsorbed to the silica gel layer of protective film. The extent of adsorption is strong. The more intense, it shows that the higher the static material, the worse the material, the better the contrary.

　　Fourth: look at the scratch

　　1, whether the protection film scratch, anti scratch is the most concerned about the current problem, the current market scraping material basically similar (2-3H), performance is also good, only scratch and do not scratch points. Test method is to use hardness of 3H pencil, with 45 degrees of angular 500G strength on the PE protective film press push 10 times, without scratch is considered as high as 3H hardness requirements.

　　2, there is a simple way is to use a little hard metal device or cut nails in the PE protective film on the surface of the usual pen scraping strength, simple method is to use a metal device slightly harder or cut the nails in the use of material surface to usual stylus force the scraping, such as very easy to scratch that does not scratch, scratch can determine which has anti scraping function.

　　Fifth: anti fingerprint

　　In recent years, more and more products of screen size increasing, and more and more intelligent machines with capacitive screen (with fingers to touch which is different from the old to the pen point resistance screen to draw) application of PE protective film is more and more need to have the function of anti fingerprint.

　　For the purchase of protective film, the user only needs to understand the relevant skills to buy things, more goods than three, price control, service, and manufacturer’s qualification, strength, and other comprehensive evaluation to determine the choice of customers.