How do painters paint and write on purple sand vessels?

Use bamboo, wood and other sharp tools or metal knives to carve sharp V-shaped characters on both sides of the strokes.

After the clay blank of purple sand ware is polished with a bright needle, it takes a period of time for the water on the surface of the blank to volatilize and turn white and hard. During this period, tools are used to depict the surface of the green body, which is called wet engraving, that is, to depict the surface of the green body with wet mud.

The blue body of purple sand is carved on it after it hardens and turns white, which is called dry carving. The tool for pottery carving of teapot is a self-made tool inserted in a circular tube, and the blade is ground into an acute angle, which is slightly thinner than a small carving knife. It's like holding a brush