Halftone color printing of pigment printing pulp have yellow and magenta and colors, and prints the actual need and a black, the halftone color printing are also known as four-colour printing.

• 网纲调不黑白印不攒用的涂料印不攒浆有黄、品红、青不一色，在本质印不攒时还需增一个白色，所以网纲调不黑白印不攒不惯上也称四色彩印。