Technology » Extraction Of Indigo Dyes (Agriculture And Animal Husbandry)

Extraction Of Indigo Dyes

Indigo plant was cultivated in half an acre and 600S Kgs. in the first ratoon and 400Kg. in second ratoon was harvested. It was soaked in water over night. The next day decomposed plant was removed. Oxidation was carried out by using mechanical agitator for one hour. The slurry was allowed to settle as insoluble at bottom. The insoluble dyes slurry was drained out. The slurry was heated to boil and filtered. The thick mass was pressed and made into cake. The dye yield was 1.800Kg in the first ratoon and 1.200Kg in the second ratoon. The strength of Indigo dye was 73.55%. 

Developed By: Gandhigram Trust

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