Does your hair dye have Indigo in it; here are the side effects
Indigo powder is a natural hair dye with a long history of use ... Get all the Latest News, City News, India News, Business ...
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Model of an Indian indigo factory
Production of indigo dye was a major industry in 19th century Bengal, India. Indigo factories were sited on river valleys for the water supply, and because indigo plants (several species of ...
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Why are most jeans blue?
People have been wearing blue jeans for centuries. Originally, the blue color came from a natural indigo dye. The dye was chosen for the way it interacted with cotton. When heated, most dyes ...