In combination printing, many printing technologies and processes are often applied. Therefore, combined printing also combines the advantages of multiple printing technologies and processes. In general, combination printing often combines the advantages of gravure, offset, flexo, and screen printing.
The advantages of each printing method are as follows. Gravure printing has the advantages of high production efficiency, good hue consistency, and good adaptability of printing materials. It has excellent performance in field, spot color, and gold (silver) ink printing, and can meet the strict requirements of packaging printing quality. For offset printing, there is a set of standardized and data-based methods for the reproduction of prints with rich tone levels. Flexographic printing, because of the short ink path and no color difference in printing, has unparalleled advantages for solid color block printing. Especially with the rapid development of the flexo supply chain such as plates, plate making equipment, printing presses, etc., the quality of flexo has made rapid progress, the tone level is reproducible, and it can meet higher printing requirements. The importance of anti-counterfeit label printing is getting higher and higher. Screen printing can produce a thick ink layer, creating a variety of effects such as bumps, mattes, refractions, ice flowers, wrinkles, etc., thereby greatly improving the visual effect of printed matter.