HAGLEY MUSEUM AND ARCHIVE / SCIENCE PHOTO LIBRARY HAGLEY MUSEUM AND ARCHIVE / SCIENCE PHOTO LIBRARY
Vat colour dye research. Industrial chemist working on vat colour dyes in a laboratory at a factory. Vat colours are fast dyeing agents, and are used on cotton, viscose process rayon and linen. These colors are fast dyes because of their inherent characteristics and the nature of their combination with the fibres being coloured. They also show resistance to colour-destroying influences such as light, laundering, and acids and alkalis. Photographed in 1941 at a DuPont research facility by US photographer William M. Rittase (1894-1968).
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