Indigo

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Indigo, IHN duh goh, is a deep blue dye used to color cotton and wool. It is also called indigotin. In past times, this dye was taken from the indigo plant, a member of the pea family that grows chiefly in India. The name indigo is a Spanish form of the English word India.

Mordant

Mordant, MAWR duhnt, is a chemical that combines with dyes to prevent them from dissolving easily. The dye alone might wash out, but the compound… See more »

Mauve

Mauve, mohv, is a delicate pale purple or violet dye. In 1856, W. H. Perkin, an English chemist, discovered that the oxidation of aniline and… See more »

Catechu

Catechu, KAT uh choo, also called black cutch, is a brown, tarlike or resinlike substance obtained chiefly from the wood of acacia trees. It is… See more »

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Indigo

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