First of all, offset printing is different from embossed printing and gravure printing. It is an indirect printing method and has all the characteristics of indirect printing, that is, printing does not directly contact the paper, and the relative friction between the printing plate and the blanket contacts The force is smaller than the printing plate and paper (the surface of the offset paper is rougher than the surface of the blanket), which can reduce the wear of the printing plate and improve the printing durability of the printing plate. Secondly, compared with the printing pressure of embossing and gravure printing, the printing pressure of offset printing is much smaller. The offset printing blanket plays the role of "lining" whether it is imprinted with the plate cylinder or the impression cylinder. The dual function of printing and imprinting; the surface properties of offset printing plates are different from those of embossed and gravure printing plates. The surfaces of embossed and gravure printing plates are generally metal surfaces with greater hardness and strength, while the offset printing plate layout The graphic part is a thin resin layer with smaller hardness and strength. Third, compared with embossed printing and gravure printing, offset printing is an indirect printing method, and its printing ink layer is thinner. In addition, offset printing has a water delivery dampening system. However, this is not the case for embossing and gravure printing. Due to the influence of the dampening fluid in the dampening system, the offset ink color is "flat" and "light". Offset printing is suitable for printing paper and is the most important equipment for the production of domestic books, periodicals, packaging boxes, etc. The plate material is PS version, and the price is less than 40 yuan per square meter. The plate material is recycled, and there are also recycled versions with poor quality. The ink is ordinary offset ink, and the price is relatively cheap.

Relief printing is divided into embossing resin printing and embossing flexographic printing. Letterpress resin printing is mainly used for self-adhesive printing. This type of equipment is roll printing equipment, using UV ink, and has high production efficiency. Letterpress flexographic printing is mainly used to produce cigarette boxes, paper cups, packaging boxes, and packaging boxes. Water-based ink, high production efficiency.

However, compared with plates and consumables, the cost of offset printing is low.

But different processes in the printing industry have different advantages. For example, in self-adhesive printing, letterpress printing machines have many obvious advantages over offset printing, mainly because of their high efficiency, which saves a lot of labor costs and losses. It also meets the customer’s usage requirements (automatic labeling)