Certainly, here is the translation: Certainly, here is the translation: "Actually, protective films are not unfamiliar to everyone; they are widely used, primarily serving as a material for screen and shell protection. In addition to being processed into die-cut products, protective films can also act as auxiliary materials in the production of other materials. Various issues often arise during the die-cutting process of protective films. So, when we encounter these problems, how should we improve and resolve them? Below, let's discuss what to pay attention to when producing protective films of different materials."

For instance, double-layer PET protective film is particularly sensitive to dirt and dust during its die-cutting process. The PET protective film itself has good release force and quality, with the adhesive applied evenly and the adhesive layer remaining clean, which facilitates die-cutting. After stamping and forming, there is minimal change. However, the processing environment demands are quite high; to produce clean and shiny protective film products, a dust-free cleanroom is required, at least a standard one, and even a Class 100 or 1000 cleanroom.

When processing protective film die-cutting, the primary concerns are contamination and material expansion, both crucial factors for quality. The former is caused by production environment conditions and can be improved, but the latter is closely related to the material. For instance, PE material static protective film can expand or contract by 0.4-1mm. After die-cutting, when the product is pulled, it will contract in one direction and expand in another, not in proportion. A preliminary solution to the issue of product shrinkage during protective film die-cutting has been developed: actually, lamination is very critical. Just control the tension of the lamination, or use double lamination, then re-form, and the shrinkage of the die-cut protective film product will be significantly reduced.