1, cyanine (indigo let go rolling mortar, about four two indigo, takes eight hours to rolling it. On the research, the glue is placed on clarification, after clarification, to emerge on the left, the left, is the cyanine)

2, gambogic (toxic, dicotyledons medicine gambogic gambogic branch plant gum resin)

3, rouge (red chip off a red dye, compositae safflower is cultivated in the scientific name Carthamus tinctoriusL.)

4, magenta (import, cochineal extract, although the plant but fall under this category)