PET protection film sticking is not firm, how to solve?
It is common in the three layer of PET protective film material, the main reason is because the use of synthetic silica, silica gel with liquidity, if the PET protective film surface encountered some small particles squeeze, it will form a crystal, the best way to avoid the crystallization point, is to protect the PET surface protective film
Thus, it will form a stripe of colored stripes on the surface of the material. It is also a common quality problem of the PET protective film material. The crystal point means the small pits and pits on the surface of the PET protective film material, which some people call bright spot.
Rainbow pattern is now PET protection film material often encountered problems, because PET protective film material surface hardening treatment, hardening is to be treated by high temperature,
