What are the dots in printing?

Dot refers to the gray tone dot representation used in printing. In the printing process, continuous harmonic and halftone images are expressed by dot density. By mixing dots of four colors of CMYK, you can display infinite colors. At present, there are two main types of dots used in the printing process: amplitude modulation and frequency modulation.

Spot colors are generally more on the spot, and a small part can be ordered. CMYK is generally a network point, and there are few in the field.