Basic knowledge and material application of PE protective film die-cutting
Dec 28, 2021
1. The strength of the surface material of the PE protective film manufacturer The strength of the surface material is related to the thickness of the surface material, fiber (polymer) structure and its own humidity. In the die-cutting process of PET protective film materials, the most important factor related to 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 it is damp, and then it can be pulled off at will, and it is even impossible to discharge waste.
When designing the layout, according to the strength of the material, through the implementation of a reasonable size and speed of the waste removal of the label, how not only can the production efficiency be improved, but also the waste of the material can be increased.
2. The thickness of the surface material The thickness of the material directly affects the depth of die-cutting. The thicker the material, the more random die-cutting. Because the thicker the material, the greater the die-cutting tolerance, the smaller the chance of cutting through the bottom paper. Relatively speaking, the material is thin, and the defect of cutting through the bottom paper randomly appears. For example, it can distinguish die-cutting 80g/m2 and 60g/m2 on a flat-bed label die-cutting machine with the same bottom paper. The result found that: 80g/m2 material is normal for die-cutting and waste discharge, but when replaced with 60g/m2 material, waste discharge breakage, bottom paper cut through and loss of standard phenomenon often occur during die-cutting. Throw a lot. There are many notices for this kind of situation. Assuming the use of circular die-cutting methods or reducing the die-cutting area, PE protective film manufacturers use high-precision equipment, etc., this phenomenon can be added or avoided.
Therefore, when die-cutting thin surface materials, you must work with high-precision equipment to increase the die-cutting area as much as possible (especially for small labels). PE protective film manufacturers use professional die-cutting plates to produce the manufacturer’s die-cutting plates. Others must be careful. Pad accuracy.
