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What is the application of PE protective film in die cutting?

time:2021/2/26 9:04:20 browse:

PE protective film manufacturers must cut through surface materials and adhesives when die-cutting, but theoretically, die-cut paper sheets are the combined result of the cutting tool and the stress fracture of the paper, that is, the downward cutting edge will also squeeze Therefore, relatively speaking, the die-cutting accuracy of paper materials is not very high. In sample analysis, we often see rough edges of some labels, which is caused by the phenomenon that the material fibers become thick and naturally break.

According to the die-cutting characteristics of the paper material, and considering the wear of the blade, the angle of the flat die-cutting blade of the PE protective film manufacturer is 52 degrees. If the angle is large, the extrusion deformation of the material will be large, that is, the differential force of the horizontal trend will aggravate the fracture differential phenomenon of the material.

The film material is die-cut, and the PE protective film manufacturer simply says that the process is completely cut through. Since most film materials are tough and will not break naturally, it is not advisable to cut off two-thirds of the thickness. It must be completely cut or cut off four-fifths of the thickness, otherwise the waste will peel off with the label.

2. The strength of the surface material of the PE protective film manufacturer is related to the thickness of the surface material, the structure of the fiber (polymer) 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 discharge speed. The higher the humidity, the weaker the material strength of the PE protective film manufacturer, and then it will break at will, or even cannot be discharged.

In the layout design, according to the strength of the material, by implementing a reasonable size and speed of labeling, how can both increase production efficiency and increase material waste?

3. 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 the die cutting. Because the thicker the material, the greater the die-cutting tolerance, and the less likely it is to cut through the bottom paper. Relatively speaking, the material is thinner, and the defects of cutting through the bottom paper will appear randomly. Such as distinguishing between 80g/m2 and 60g/m2 on the same flat label die-cutting machine, the surface material is the same as the base paper. The results show that: 80g/m2 material die-cutting waste is normal, and 60g/m2 material is used instead. Die-cutting often shows waste breakage, bottom paper cut through and scratches, and it is often necessary to stop the machine, pad paper, and throw waste very much There are many precautions in this situation. Assuming that the circular die-cutting method is used or the die-cutting area is reduced, the PE protective film manufacturer uses high-precision equipment to increase or avoid this phenomenon.

Therefore, when die-cutting thin surface materials, it is necessary to increase the die-cutting area as much as possible (especially for small labels) in high-precision equipment. The PE protective film manufacturer uses the die-cutting board of a professional die-cutting board manufacturer. Others should also pay attention to the pad Accuracy.