multicolor printing
Refers to printing using multiple colors, as opposed to monochrome. Common in contexts like art, publishing, and packaging.
This magazine has many pages of multicolor printing.
Multicolor printing technology is advancing year by year.
カラー印刷 is a more common, everyday term for color printing, while 多色刷り is slightly more technical.
Compound of 多色 (many colors) and 刷り (printing), from the verb 刷る (to print).