Botanical Name

indigofera tinctora

Common name


Other Name


Part Used



textile dyeing, pigments,paints..etc

Color Ranges:

Product Descriptions:

Indigo is natural dye used since ancient times to generate beautiful blues that range on scale from sky blue to deep, almost black blue. People are nervous about dyeing with indigo because It is a tricky dye to work with, mostly because it is not water soluble. To cure this problem, we extracted the main coloring component from the leaves of Indigofera Tinctoria plant by getting our hands on biological and eco- friendly methods. The main coloring component of indigo blue is indigotin. Indigo is a dark blue crystalline powder and is not soluble in either water or alcohol. So firstly, we make it soluble in an alkaline vat where oxygen has been removed by fermentation process. Natural indigo is really better as it can create a deeper blue, and, since it is not water soluble, you can wash natural indigo over and over without any loss of color. No mordant is required when you dye with indigo. Natural indigo is a sustainable dye; after the pigment has been extracted the plant residue can be composted and used as a fertilizer and the water reused to irrigate crops.

Dyeing Process

sodhani biotech

(A) Prepare Vat :- Indigo dye powder mix with water (50°C) then mix hydro and stirrer well and rest the vat solution for 10 min then add caustic or soda ash maintained the PH 11-12. Prepared vat turn into yellowish color.
(B) Dyeing :- Fabric Dip in vat solution for 1 min then keep out of fabric for air oxidation repeat the process until you achieved desired shade 5-6 dip enough for medium shade.
(C) Oxidation :- Dry the fabric in open air.
(D) Neutral :- After dyeing fabric wash with acetic acid at 50°C for 20 mins.
(E) Post Treatment : - Conduct soaping of the dyed material with non-ionic detergent (1gpl) or ezee soap at 75°C for 35 mins.
(F) Then conduct the cold wash of the fabric at 50°C for 20 mins or more time.


Connecting with us is easy and simple. Just subscribe now!