Lectures

You can attend the following lectures in the CAB for European Heritage Days 2019:

Farbstoffproben_Perkin

(Hi)story of blue dye – Part I: From Maya blue at the sacrificial sites to the indigo balls of the woad traders and Levi Strauss’ blue denim

 
It wasn’t just the ancient temples that were painted blue. Human sacrifices to the Mexican rain god Chaac were also painted a blue colour. Charlemagne had dye plants cultivated on his estates, while woad traders in the Middle Ages accumulated great wealth. From around 1620 onward, textile dyers preferred indigo. The victory march of blue jeans started in 1872 with work clothing by Levi Strauss.

Organiser:
Barbara Brauckmann
Department of Chemistry and Applied Biosciences, Chemistry Collection (external link)

Time and place:
12.00-12.45, CAB (external link), lecture hall G 11

Registration (external link) 

Musterbuch_Seite

(Hi)story of blue dye – Part II: From the colour trials by the ETH Zurich professors, tar dye chemistry and the founding of companies in Germany and Switzerland to the colour sample book

 
Researchers initially focused on natural materials. When they discovered how degradation products from gas works could be used to manufacture dyes, the hype about indigo synthesis commenced. Companies like BASF, Bayer and Geigy were booming. Cloth print works collected colour printing patterns and manufacturing notes. Everywhere, ETH chemists were playing an authoritative role.

Organiser:
Barbara Brauckmann
Department of Chemistry and Applied Biosciences, Chemistry Collection (external link)

Time and place:
14.00-14.45, CAB (external link), lecutre hall G 11

Registration (external link)