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Indigo is a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria. Dye-bearing Indigofera plants were commonly grown and used throughout the world, particularly in Asia, with the production of indigo dyestuff economically important due to the historical rarity of other blue dyestuffs. [1]
Traditional natural dyeing (Korean blue – Persicaria tinctoria) Blue colorants around the world were derived from indigo dye-bearing plants, primarily those in the genus Indigofera, which are native to the tropics. The primary commercial indigo species in Asia was true indigo (Indigofera tinctoria).
Indigofera tinctoria [2], also called true indigo, is a species of plant from the bean family that was one of the original sources of indigo dye. Description [ edit ]
Indigofera galegoides is a species of flowering plant in the family Fabaceae, native to India, South East Asia, Malesia, and southern China. [1] It is a shrub usually 2 m (6 ft) high and indigo dye may be extracted from it by the same harvesting and processing methods as Indigofera tinctoria . [ 2 ]
An elderly Bengali man in Dhaka with a beard dyed in henna. Henna is a reddish dye prepared from the dried and powdered leaves of the henna tree. [1] It has been used since at least the ancient Egyptian period as a hair and body dye, notably in the temporary body art of mehndi (or "henna tattoo") resulting from the staining of the skin using dyes from the henna plant.
This page was last edited on 6 November 2016, at 14:08 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
In Central and South America dyes are produced from two species in the same genus: indigo and Maya blue from Indigofera suffruticosa and Natal indigo from Indigofera arrecta. Yellow dyes are extracted from Butea monosperma, commonly called flame of the forest and from dyer's greenweed, (Genista tinctoria). [73]
The chemical aniline, from which many important dyes are derived, was first synthesized from Indigofera suffruticosa (syn. Indigofera anil, whence the name aniline). In Indonesia, the Sundanese use Indigofera tinctoria (known locally as tarum or nila) as dye for batik. Marco Polo was the first to report on the preparation of indigo in India.