How Japan's 800-year-old indigo dyeing process is still standing
Here's how natural indigo is still grown and fermented in Japan, despite the fashion industry's dependence on synthetic dyes.
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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 ...