The white dots and bubbles of composite packaging bags have different shapes, and people have different concepts of bubbles and white dots. Although they are both called white spots and bubbles, most of them are not the same phenomenon, and the formation mechanisms are even more different. Therefore, white dots and bubbles are general names, […]

1. Check whether there is dust, garbage and sundries irrelevant to printing around the printing machine, whether the raw and auxiliary materials are sufficient and whether they meet the printing requirements. For the printing of plastic film, the substrate film to be printed is required to meet the following requirements. 2 (1) The surface of […]

Aluminum foil bag is a kind of composite bag with aluminum foil composite bag. The unique characteristics of aluminum are made of aluminum and other high-barrier materials after dry test composite type. Key plastic films: PA, PET, OPP, which can be printed on the surface, and CPP, PE, which can be heat-sealed on the inner […]