Die cutting and the application of PE protective film in material
- Categories:NEWS
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- Time of issue:2018-07-18
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(Summary description)Surface materials can be basically divided into two categories: paper and film.
It is simple that the cutting affair of paper is slightly different from that of film materials. Although theoretically speaking, PE protective film manufacturers must cut through the surface material and adhesive together when die-cutting, but theoretically die-cutting paper materials is the combined result of tool cutting and paper fracture, that is, the cutting edge is cutting downwards. The paper is also squeezed to both sides, so, relatively speaking, the die-cutting accuracy of paper-like materials is not very high. When analyzing samples, we often see some labels with burrs. This is due to the fact that the material is relatively thick and naturally broken.
Die cutting and the application of PE protective film in material
(Summary description)Surface materials can be basically divided into two categories: paper and film.
It is simple that the cutting affair of paper is slightly different from that of film materials. Although theoretically speaking, PE protective film manufacturers must cut through the surface material and adhesive together when die-cutting, but theoretically die-cutting paper materials is the combined result of tool cutting and paper fracture, that is, the cutting edge is cutting downwards. The paper is also squeezed to both sides, so, relatively speaking, the die-cutting accuracy of paper-like materials is not very high. When analyzing samples, we often see some labels with burrs. This is due to the fact that the material is relatively thick and naturally broken.
- Categories:NEWS
- Author:
- Origin:
- Time of issue:2018-07-18
- Views:0
1. Types of surface materials
Surface materials can be basically divided into two categories: paper and film.
It is simple that the cutting affair of paper is slightly different from that of film materials. Although theoretically speaking, PE protective film manufacturers must cut through the surface material and adhesive together when die-cutting, but theoretically die-cutting paper materials is the combined result of tool cutting and paper fracture, that is, the cutting edge is cutting downwards. The paper is also squeezed to both sides, so, relatively speaking, the die-cutting accuracy of paper-like materials is not very high. When analyzing samples, we often see some labels with burrs. This is due to the fact that the material is relatively thick and naturally broken.
Based on the die-cutting characteristics of paper materials, and considering the wear of the blade, the angle of the PE protective film manufacturer's flat die-cutting blade is 52°, assuming that the angle is large, the extrusion deformation of the material will be large, that is, the horizontal tendency The distinguishing power of the material will aggravate the phenomenon of material fracture.
For the die cutting of film materials, the PE protective film manufacturer is simply a complete cutting process. Because most of the film materials are tough and will not break naturally, it is not appropriate to cut through two-thirds of the thickness. It must be completely cut through or through four-fifths of the thickness, otherwise it will be peeled off along with the label when it is discharged.
2. 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, the fiber (polymer) structure and its own humidity. In the die-cutting process of PET protective film materials, the most important factor related to surface materials is the speed of waste discharge. The higher the humidity, the weaker the strength of the PE protective film manufacturer's material after being damp, and then it can be pulled off at will, or even 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.
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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 die-cutting. Because the thicker the material, the larger 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 results 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 reasons 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.
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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.
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