Application of PE protective film die-cutting different types of surface materials in consumer flat panels

The types of PE protective film surface materials can be basically divided into two categories: paper and film.

The PE protective film for coarse and light paper is slightly incompatible with the film material. Although theoretically, PE protective film manufacturers must cut through the surface material and adhesive together when die-cutting, in theory, die-cutting paper like materials is a comprehensive result of tool cutting and paper breakage. That is to say, the cutting of the blade also presses the paper to both sides, so the die-cutting accuracy of the paper material is not very high. When analyzing samples, it is common to see some labels with burrs, which is due to the fact that the material fibers are rough and naturally broken.

PE protective film is based on the die-cutting characteristics of paper materials and takes into account the wear of the blade. The angle of the flat die-cutting blade of the PE protective film manufacturer is 52 °. Assuming that the angle is large, the extrusion deformation of the material will be large, that is, the horizontal tendency of the recognition force will worsen the phenomenon of material fracture and differentiation.

The die-cutting of thin film materials, PE protective film manufacturers simply put it is the process of completely cutting through. Because most thin film materials have toughness and will not naturally fracture, it is not suitable to cut into two-thirds. It must be cut or cut into a thickness of four fifths. Otherwise, it will peel off together with the label.

The strength of PE protective film surface material is related to the thickness of the surface material, the fiber (polymer) structure, and its own humidity. In the die-cutting process of PET protective film materials, the associated factor with the surface material is the waste discharge speed. The higher the humidity, the weaker the strength of the PE protective film manufacturer's material after being affected by moisture, and then it can be easily pulled and even unable to be discharged.

When designing the layout of PE protective film, it is necessary to follow the strength of the material and implement a reasonable label placement size and speed to not only improve production efficiency but also increase material strength.

The thickness of the PE protective film surface material directly affects the depth of die-cutting. The thicker the material, the more difficult it is to die cut. Because the thicker the material, the greater the die-cutting tolerance, and the lower the chance of cutting through the base paper. Relatively speaking, the material is thin and prone to cutting through the base paper. Distinguish between cutting 80g/㎡ and 60g/㎡ with the same base paper on a unified flatbed label die-cutting machine. As a result, it was found that the die-cutting and waste removal of 80g/㎡ material were normal, but when replaced with 60g/㎡ material, there were often occurrences of waste breakage, bottom paper cutting through, and loss of labels during die-cutting. It was necessary to frequently stop the machine and perform plate cushioning, resulting in significant waste. There are various reasons for such situations. Assuming the use of circular die-cutting or reducing the die-cutting area, PE protective film manufacturers use high-precision equipment, etc,