What are the requirements for producing protective film?

Die cutting protective film requires very strict processing. First, it is required to be processed in a clean workshop environment of 1000, with excellent cleanliness; Second, the viscosity is required to be low, and the adhesive force changes little after application, and then the low pollution of the adhesive is reduced after peeling; Thirdly, there is no residual glue, and thick transparent PET substrate must be used as raw material for production, which is suitable for half stamping. In the process of processing, we often encounter various problems, and the processing of protective film is no exception. After a long-term attempt by the die-cutting master, the shrinkage problem of protective film die-cutting products has been solved, but there is a preliminary plan: in fact, laminating is very important, as long as the tension of laminating is mastered, or secondary laminating is used and then used for punching, so that the shrinkage of die-cutting products will not be so serious.