Compared to the case of color matching drafts, paper box printing companies manufacture them. Not only does it have rich variations in intensity, but it also has rich variations in self tone. The copying channel that is suitable for reflecting continuous adjustment and rich changes is the offset printing adhesive printing company. Relatively speaking, there are not as many changes on offset printing plates, with only the difference between the target text and the blank space on the printing plate.

The height of the ink layer on the printing plate is the same, and it cannot be innovated according to the original manuscript - the color tones of the matching parts vary greatly. In this way, the copying of color graphics in printing companies is achieved through special art.

The process of restoring the color tone of the original manuscript in offset printing companies. When working in a printing company, various colors of printing plates are overprinted to present rich tones and diverse effects.