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Examples of anthraquinone pigments. indigo Dyerswoad, Isatis tinctoria, is a source of indigo, considered the oldest known dye. Some early commercial synthetic dyes. Klebsiella pneumoniae in pneumonia Staphylococcus aureus The visible spectrum, which represents the portion of the electromagnetic spectrum that is visible to the human eye, absorbs wavelengths of 400–700 nm. Structures of common fibres. Some tanneries, such as that in Fès, Morocco, still rely on vat dyeing to tan leather. Fès, Morocco: tannery
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Also known as: dyestuff
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Examples of anthraquinone pigments.
dye
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Category: Science & Tech
Key People:
Friedrich Bayer
Adolf von Baeyer
Related Topics:
saffron
azo dye
indigo
anthraquinone dye
cochineal
On the Web:
National Center for Biotechnology Information - General Introduction to the Chemistry of Dyes (Mar. 19, 2024)
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dye, substance used to impart colour to textiles, paper, leather, and other materials such that the colouring is not readily altered by washing, heat, light, or other factors to which the material is likely to be exposed. Dyes differ from pigments, which are finely ground solids dispersed in a liquid, such as paint or ink, or blended with other materials. Most dyes are organic compounds (i.e., they contain carbon), whereas pigments may be inorganic compounds (i.e., they do not contain carbon) or organic compounds. Pigments generally give brighter colours and may be dyes that are insoluble in the medium employed. ...(100 of 7982 words)

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