In fact, most people are familiar with protective films, which are widely used for screen and shell maintenance. Besides being used to produce die-cut products, protective films can also serve as auxiliary materials for other materials. During the die-cutting process of protective films, various issues often arise. So, how should we improve and handle these problems when we encounter them? Below, let's discuss what to pay attention to when using protective films of different materials:

Double-sided PET material protective films, which are prone to dirt and dust during die-cutting, have good release characteristics, excellent quality, and evenly applied adhesive with a clean layer, making them easy to die-cut and form without significant changes after stamping. However, they require a high-standard processing environment, necessitating a clean and bright production, which demands a dust-free workshop, including standard, 100-class, and 1000-class dust-free workshops.

When performing die-cutting on protective films, there are two main concerns: cleanliness and expansion, which are crucial factors for quality. The former is influenced by environmental conditions and can be improved, but the latter is highly related to the material. For instance, PE material static protective films can expand up to 0.4-1mm. When the die-cut product is pulled, it will contract in one direction and expand in another, not in proportion. A preliminary plan has been devised to address the issue of product shrinkage during die-cutting: actually, the lamination process is key. By controlling the tension of the lamination or opting for a double lamination followed by stamping, the shrinkage of the die-cut protective film products can be significantly reduced.