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6 Yrs
BP-130, Shalimar Bagh West
New Delhi, Delhi-110088, India+(91)-11-27481102
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Pure Dry Indigofera Tinctoria

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Indigofera tinctoria bears the common name true indigo. The plant was one of the original sources of indigo dye. It has been naturalized to tropical and temperate Asia, as well as parts of Africa, but its native habitat is unknown since it has been in cultivation worldwide for many centuries.
Specification of Indigo
It is prepared from Indigo leaves by natural fermentation process.

Botanical NameIndigofera Tinctoria
Common NameIndigo Blue
Part UsedLeaves
Chemical FormulaC16H10N2O2
Type of DyeVat Dye
C.I. NumberC.I. Vat Blue 1
Main ColoringIndigotin (Strength = 40-45%) (Swiss Method)
Component PhotoSpectro Metro Method
Solubility in water4.0 to 2.0%
Heavy Metal ComponentZn = 27 ppm
Cr = 1.6 ppm
Absent = pb, As, Cu
Hg, Ni, Cd
Moisture Content5 1.0%
Ph. of 1% Solution7 1.0
SpecialtyColor changes to greenish yellow in alkaline medium.
DyeingThe process of dyeing cotton, wool & silk is almost same, the process is like that of vat dyes. The dye has to be dissolved in reduced state, then oxidized to get the shade blue.
Colors ImpartedBlue


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