The degumming problem and smoothness of PET protective film
Posted by Admin | 28 Jun
In the process of transportation and use, the PET protective film and the product to be protected are not firmly posted and fall off. This is because the viscosity of the sensitive adhesive used in the production of the PET protective film product is not available. There is also a possibility that the user The pressure of the press molding machine used during the stamping process is not available, or the surface of the profile is not clean, there is dust or paint, etc., which affects the posting effect of the sensitive adhesive! Assuming that this problem occurs, it is necessary to address the cause, prescribe the right medicine, and replace the sensitive adhesive , Increase the pressure of the film, or pay attention to the useful cleaning of the surface of the profile when the film is applied to avoid such problems.
After using the PET protective film for a period of time, it will have wings on both ends. The primary reason for this phenomenon is that the protective film stretches to a large extent during the posting process with the protected profile. After the post is completed, it will appear in a high temperature environment. In order to avoid unnecessary shrinkage, this problem mostly occurs in the products of customers in the south. Therefore, when the PET protective film is produced, you should pay attention to the impact of the environmental temperature difference on the use of the product, and avoid unnecessary surface stretching during the posting process.
The PET protective film will have degumming problem, which is more reflected in the profile protective film. When the user tears off the protective film from the surface of the profile after the construction of the profile device is completed, the viscose embodied in the protective film does not follow the protective film. It is left on the profile products. This is what users are reluctant to see, because it is very troublesome. It is necessary for someone to cut the glue from the profile. It takes a lot of labor and time. There are many possibilities for this kind of problem. The most likely reason is that the pressure glue used for the protective film product does not meet the requirements and is too sticky. When the PE protective film product is peeled, the external tension is greater than the internal female force, and it remains on the profile.
Assuming that the user has such a problem, he can use a clean cloth to dip a small amount of alcohol, and repeat the rubbing of the remaining sensitive adhesive until the sensitive adhesive is cleaned. However, it is important to be careful not to wipe the adhesive too much. Use force, otherwise it may affect the finish of the profile product.
The PET protective film is difficult to peel. When the profile product is peeled off, the protective film cannot be peeled off effectively. There are two possible reasons. One is that the sensitive adhesive used in the protective film product is not a special sensitive adhesive for the protective film. If this is the case, The protective film is of course very effective when it is pasted, but it will be very difficult to peel off. This is also a common problem with the protective film produced by some illegal PET protective film product manufacturers. Another possibility is the protective film master tape. The raw materials used are too soft to withstand the pulling force during peeling, and cracking occurs during peeling, which is a very headache for users.