Causes of rainbow patterns in polymer protective film

Wholesale polymer protective film products sometimes have rainbow patterns, which will have a certain impact on appearance and quality. What causes this? The first is the original base film of the polymer protective film. Its rainbow pattern is heavier. Because the degree of rainbow pattern directly affects the quality of the hardened film product, you should pay attention when choosing materials. Furthermore, the characteristics of the hardened coating liquid are also one of the important influencing factors. We may not notice when using it, and we must make good use of it when using it. In addition, the different refraction principles and degrees of the coating and the original base film will also affect the weight of the rainbow pattern, so the thickness and uniformity of the coating should be controlled well. The above is the reason for the rainbow pattern of the polymer protective film. We must pay attention to it when using it, so that it will have a better effect. Next: Preservation of polymer protective filmPrevious: Quality requirements of polymer protective film