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Indigo dye is an organic compound with a distinctive blue color. Indigo is a natural dye obtained from the leaves of some plants of the Indigofera genus, ...
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
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
It was a primary supplier of indigo dye to Europe as early as the Greco-Roman era. The association of India with indigo is reflected in the Greek word for the dye, which was indikon (ινδικόν). The Romans used the term indicum, which passed into Italian dialect and eventually into English as the word indigo.
Drying colored cloth Chemical structure of indigo dye, the blue coloration of blue jeans. Although once extracted from plants, indigo dye is now almost exclusively synthesized industrially. [1] A dye is a colored substance that chemically bonds to the material to which it is being applied.
Blue dye No. 1 and yellow dye No. 6 may also be toxic to some human cells, according to a 2015 study. Of the seven artificial dyes , green dye No. 3 is the least used, according to the ...