How many printing and dyeing methods were there for ancient colored printed cloth?

There are two kinds of colored printed cloth: flower-pressed printing and hollowed-out paper printing.

The process flow of color printing of relief woodblock is as follows: firstly, soak the homespun in alum water, then take it out and hammer it on the slate. When the hammered cloth is cooled to 70% to 80% dry, put it on the purple pattern wood block with bristles, and rub it repeatedly on the surface of the cloth with glass balls until the color on the wood block is evenly printed on the cloth.

Brush printing of hollowed-out paper plate is to put the oil paper plate engraved with patterns flat on the cloth surface, one color at a time, and directly brush printing with dyes of different colors on the cloth surface.