Rainbow film is a stretch material embrittlement during use required from the main process and performance adjustment, turn tension adjustment. Rainbow film production and processing should be aware of the following issues:
① Rainbow membrane is prone to stretching, printing, laminating film used as a membrane at the end of the Rainbow and not as a foreign film.
② Rainbow resistance to low temperature in the processing of iron or high-temperature coating control temperature does not exceed 80 ° c will cause wrinkling, shrinkage or fracture.
③ Rainbow film not to strong alkaline product or cause the product to fade even contracted into a ball.
Rainbow films in Taiwan and has been used for 20 years, major trends in the future will be on the road to a new higher level, more intense, more color changes to open up new areas of application.