Among the many performance attributes of the protective film (viscosity, thickness, color, tensile property, light transmittance, etc.), one is called weather resistance. As the name suggests, it is the ability to withstand the environment and climate. So why should the protective film emphasize this attribute? What effect does weather resistance have on the quality of protective film?
During the use of the protective film, the protected finished products will also be directly exposed to the sun, which may last for half a year to a year. In this process, the protective film will not be stained, but the performance may change. You even need to stay in the container and spend a few months crossing the sea. The environment encountered by the protective film is actually quite bad.
The protective film has excellent mechanical function, which is very suitable for the tensile strength, elastic modulus and elongation required by its users. The protective film is lazy to the appearance of the data to be maintained, and has excellent adhesion function to the data to be maintained. During the data transfer and processing, the maintenance film will not rise and fall.
The protective film has good weather resistance and adhesion stability. After several days or long sticking, the peeling force does not increase significantly, and it is easy to remove. When it is removed, there is no residual glue left on the surface and no photo.
After being used for a period of time, the protective film will perform well in the center, but its two ends are cocked up. The primary reason for this phenomenon is that the protective mold has a large degree of stretching in the posting process of the maintained profile. In the future, it will show unnecessary retraction in case of high temperature environment.
The problem of protective film mostly occurs in the south. Therefore, when the protective film is used in the production process, we should pay attention to the impact of environmental temperature difference on product application, and avoid unnecessary surface stretching in the film pasting process.