FIVE THOUSAND YEARS of red
Madder has been found in some of the earliest known textile fragments. Traces of alizarin have been identified on cotton fibres at Mohenjo-daro in the Indus Valley, dating to approximately 2500 BCE. Egyptian mummy wrappings from similar periods show evidence of madder dyeing. The dye was known across the ancient world ~ in Persia, Mesopotamia, Greece, and Rome ~ and remained the primary source of red for cloth until the synthesis of alizarin by the German chemists Graebe and Liebermann in 1868.
The mordanted areas absorb and fix the colour; the unmordanted areas remain pale or white. This is the essence of mordant printing, one of the most ingenious and elegant techniques in the history of textile craft.