He claims, for example, that there has not been a single new dyestuff invented since 1956.Even in relatively zippy businesses like pharmaceuticals, genuinely new products are fewer and further between.
The locality's traditional textile industry, together with coal and water supplies, stimulated ancillary dyestuff, chemical, and heavy engineering industries that gradually replaced textile manufacture as the town's major employers.
Then, in the 1st century ce, the writers Pliny the Elder and Pedanius Dioscorides both described auripigmentum, a substance now thought to have been the dyestuff orpiment, As2S3.
Quercitin is a strong dyestuff; it yields more than one colour, depending on the mordant used.
Carmine, red or purplish-red pigment obtained from cochineal, a red dyestuff extracted from the dried bodies of certain female scale insects native to tropical and subtropical America.
The oldest known red dyestuff, resembling but inferior in colour to cochineal, it was used by the early Egyptians.
1,2-Dichlorobenzene is used as a solvent, as an insecticide, and in the manufacture of other chemicals, particularly dyestuff intermediates.
Sepia, dyestuff, coloured brown with a trace of violet, that is obtained from a pigment protectively secreted by cuttlefish or squid.
Cochineal, red dyestuff consisting of the dried, pulverized bodies of certain female scale insects, Dactylopius coccus, of the Coccidae family, cactus-eating insects native to tropical and subtropical America.
Indigo, an important and valuable vat dyestuff, obtained until about 1900 entirely from plants of the genera Indigofera and Isatis.
