Color grading is a matter of experience.

Self-adhesive machine orders are divided into spot colors and 4-colors. The color-chasing samples include trademark machine samples and offset printing samples.

Spot color is adjusted before going on the machine. According to the principle that the three primary colors and black can be adjusted into various colors, very bright colors cannot be adjusted. It is necessary to use spot color ink, such as radiant blue and golden red. Another thing that is more difficult to adjust is light-colored ink. You need to add a small amount to the white ink.

Four-color dots are relatively simple. After registering the color, you need to control the amount of ink to adjust the color.

In short, adjusting ink requires accumulation of experience. The more you summarize and practice, your skills will improve.