The Colour Index name for synthetic indigo, first sold commercially by BASF in 1897. It soon drove natural indigo off the market and now dyes almost all blue jeans.
See also: Woad · Indigo and empire
The Colour Index name for synthetic indigo, first sold commercially by BASF in 1897. It soon drove natural indigo off the market and now dyes almost all blue jeans.
See also: Woad · Indigo and empire