Saturday, December 5, 2015

Day 5 - Early Indigo Production in India



31 day blog challenge (1)        Image result for India indigo block printed textiles
                                                                  Indian Indigo block printed pattern

India is believed to be the oldest center of indigo production and dying in the Old World. To produce enough indigo farmers were forced to give up a percentage of their land to grow indigo. Growing indigo proved to be a lucrative process where nothing was wasted. The leaves produced dye, and  were composted enriching the soil with nitrogen. Stems were used as cattle feed and fueled the boilers in indigo factories.

A British-run indigo factory in India.This is a beating vat where the indigo was oxidized. It would have produced a nauseating smell. (photo from designsponge.com)

After the indigo leaves were fermented in a vat the liquid is strained off. Next almost naked groups of lower cast men and women walked up and down in slimy waist deep liquid beating and stirring with paddles to oxidize the liquid, turning it from green to dark blue. Nicknamed the "devil's tank" It was a noxious and dangerous process that injured or killed many.  Once the aerated indigo was deemed ready the beating ceased allowing the settling  and draining off of water leaving behind a thick clay like blue paste. The Indigo paste was collected and dried for dying or trading.


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