Rainbow film is a kind of stretched product whose material is rather brittle, so it needs to adjust the main process and machine performance during use, and reduce the boot tension.
The following issues should be paid attention to during the production and processing of rainbow film:
①The
rainbow film is very easy to stretch. In the printing and laminating process, the rainbow film is generally used as the base film instead of the outer film.
②The temperature resistance of the rainbow film is low, and the temperature should not exceed 80°C during hot pressing or high-temperature coating, otherwise wrinkling, shrinkage or breakage will occur.
③The rainbow film should not be in contact with strong alkali-resistant products or it will cause the product to fade or even shrink into a lump.
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