PE protective film quality problem

- May 20, 2019-

Problem 1: The PE protective film and the protected product are not firmly adhered, and they fall off during transportation and use. The reason for this problem is exactly the opposite. The biggest possibility is that the protective film product is in production. The viscosity of the pressure sensitive adhesive used is not sufficient. There is also a possibility that the pressure of the molding machine used by the user is insufficient, or the surface of the profile is not clean, dust or paint, etc., which affects the sensitive adhesive. Paste effect! If this problem occurs, it is necessary to aim at the cause, the right medicine, replace the sensitive glue to increase the film pressure, or pay attention to the effective cleaning of the surface of the profile when the film is applied to avoid such problems.

Problem 2: The protective film performs well in the middle after a period of use, but the wings are raised at both ends. The main reason for this phenomenon is that the protective film is stretched more during the pasting process with the protected profile. In the future, in the high temperature environment, there is an unnecessary retraction phenomenon. This problem occurs mostly in the products of southern customers. Therefore, PE protective film should pay attention to the influence of environmental temperature difference on the use of the product during the production process. Avoid unnecessary surface stretching.

Question 3: The user's most reflected is the degumming problem of the protective film product. This problem is most reflected in the profile protective film. When the user removes the protective film from the surface of the profile after the profile is installed, the adhesive film shows the adhesive. It does not follow the protective film, but remains on the profile product. This is the last thing users want to see, because it is very troublesome and requires someone to scrape the glue off the profile. This is especially time-consuming and time-consuming. There are many possibilities for the problem. The biggest possibility is that the pressure adhesive used for the protective film product does not meet the requirements, that is, it is too sticky, so that when the PE protective film product is peeled off, the external tension is greater than the internal stress, and remains on the profile. . If you have this problem, you can use a clean cloth to pick up a little alcohol, and repeatedly rub the residual gel until the gel is wiped clean, but you should be careful not to be too Use force, otherwise it may affect the finish of the profile product.

Problem 4: It is difficult to peel off the protective film product. When the profile product is finished and peeled off, the protective film cannot be effectively peeled off. There are two reasons for the reason. First, the sensitive adhesive used for the protective film product is not a special adhesive for the protective film. In this case, the protective film is of course very effective when applied, but it is very difficult to peel off. This is also the most common problem of protective film produced by some illegal protective film manufacturers. There is also a possibility that The material used for the protective film master tape is too soft to withstand the pulling force at the time of peeling, and breakage occurs during peeling, which is a problem that is very headache for the user.

Problem 5: Although the PE protective film product can be effectively peeled off, there is a protective film on the surface of the profile. This problem often occurs in some low-grade protective film products because the protective film is bonded to the protected profile. In the case of a suitable environment such as sunlight and water, a kind of chemical cooperation occurs.www.snpefilm.com