Natural dye extracted from sawdust, scraps and branches of rosewood,etc., used in red series.

Yellow gardenia, marigold, bamboo leaves, etc., used in yellow series.

The roots of the leaves of Chinese green, magnolia, indigotica and other plants are used to prepare Isatidis Radix, and the stems 

Natural dye prepared from chlorophyll extracted from mulberry leaves, silkworm sand, tea and other green plants, used in green series.

A natural dye extracted from the fruit, stem and leaf of coffee bean, Torreya shell, chestnut shell, etc., used in the brown series.

Bamboo, a natural dye extracted and prepared for use in gray-black series.