Story of Mauve
11.09.2014 § Leave a comment
I have always been fascinated with dyestuffs—what all the natural dyes can do, how the synthetic dye industry got started and how it replaced natural dyes. I found this wonderful story and extracted excerpts below:
During the Easter break in 1856, William Henry Perkin—an 18-year-old chemistry student in his second year at the Royal College of Chemistry in London—was doing experiments at his family home in Shadwell in the East End of London. His professor was Wilhelm Hofmann, a German chemist who was very interested in the chemicals that could be made from coal tar.
His efforts to make quinine, however, only produced a black tar. He then decided to try the same reaction with aniline, another « Read the rest of this entry »
11.04.2011 § 2 Comments
Many people think that natural dye would be environmentally friendly and that “green” products should use natural dye. Let’s consider some facts about natural dyes.
Natural dyes have poor color power, meaning that a large amount of dye is needed to produce deep shades. Natural dyes have poor color fastness to laundering and sunlight too. Even indigo dye — which has a pretty good output — is not powerful enough to supply today’s demand. « Read the rest of this entry »