Precautions in the printing process of silver cardboard for packaging
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1. In the production process of laser film, black spots and dirty spots will inevitably appear due to static electricity. In order to cover these defects, the laser effect is also reflected. When designing the cigarette package printing process, it is usually necessary to add 20%. ~40% of the white net.
2. The laser film has 12μm PET film and 23μm BOPP film. In order to ensure the molding effect and the speed of the package, a 12μm PET film is usually used.
3. In order to improve the gloss of the cigarette pack, the laser jammed paper with the aluminized layer facing outward is often used, that is, the laser paper jam of the PET film and the paper composite, but the aluminum plating layer is easily scratched when facing outward, which is in the printing time. Need to pay attention.
4. In the case of die cutting, in order to prevent the occurrence of burrs, a pattern peak knife can be used. Since the PET film is not firmly bonded to the paper, delamination often occurs during die cutting. Therefore, before the official production, it is necessary to carry out a small batch of the upper package. In order to ensure the viscose effect, the height of the viscose tooth line at the mouth should be 23.7mm, and the density of the viscose tooth line should be increased.