First, printing with an offset press is characterized by low cost, but only a single sheet can be printed, which can be die-cut separately after it comes out, or other honest processes cannot be carried out on the labeling machine.
Second, printing with relief printing machine, characterized by this kind of printing self-adhesive way as the mainstream, characterized by printing die-cutting and covering film, discharging waste and forming at one time, for drum printing, which can be placed on the labeling machine.
The third type of flexographic printing is characterized by environmental protection, because flexographic printing mostly uses water-based ink. It's also a roller print.
The fourth is screen printing, of course, there are both drums and leaflets, which can print special effects. Printing ink has protrusions and saturation. It can also be done through a whole set of processes. But the speed is slow. The accuracy is also relatively low.
The fifth method is to use a device similar to offset printing to print labels, but the paper is a web with high precision, and its application scope is relatively small at present. It may be a development direction.