THE DYEING PROCESS
Our vats are based on non-polluting, organic reduction methods.
Indigo dye is unique in the way it behaves in that it comes from the green leaves of various plants and because it is not soluble in water.
And so what is indigo blue?Indigo’s precursor is Indican, which can be hydrolyzed to release β-D-glucose and indoxyl. When oxidation occurs from exposure to air, indoxyl is converted to indigotine, which is the insoluble blue chemical called indigo.
How Indigo Is Extracted
The seeds are first sown and placed in a greenhouse for 30 days.
They are transplanted into the ground where they will remain there for another 4 months.
They are harvested and from there they are processed through fermentation, which takes about 120 days to complete, or until the pigment is extracted.
From there you can start preparing the tanks.
The fibres are immersed in the liquid and only when they come out and touch the air, they oxidize and become coloured. It is a long process where each step is repeated to increase the concentration of dye in the fibres until the desired shade of blue is obtained.