1. Printing white spots caused by powder dripping of printing materials Depower of printed materials is also prone to printing white spots. Different from paper wool and paper scraps, the powdery state of the printing material is due to its lack of surface strength, which causes the tiny powder particles to adhere to the surface…
1. Coating Used to change the surface characteristics of the face material. Such as improving the surface tension, changing the color, adding a protective layer, etc., to make it better accept ink and easy to print. It is precise because of this coating that the printing type adhesive paper will be divided into laser and…
1. The uniformity and strength of the thickness of the bottom paper and the surface material are not only related to the printing performance, but also an important indicator that determines the uniformity of die-cutting, the speed of the waste discharge, and the edge breakage of the paper. If these indexes are too low, the…