Dyes, Natural
Also found in: Medical.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Dyes, Natural
substances formed by living organisms or contained in minerals. They are used in the textile, food-processing, and perfume industries as well as in rug manufacturing. The best-known dyes of animal origin are carmine, a red dye obtained from the bodies of female cochineal insects; Tyrian purple, a reddish violet dye contained in the adrectal glands of marine gastropod mollusks of the family Muricidae; and sepia, a grayish brown pigment obtained from the secretions of the ink sac of marine cephalopod mollusks of the genus Sepia (cuttlefish).
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive
Unlike chemical
dyes, natural colourants do not erode the structure of wool fibres, but lend them sheen and succulence.
Copyright © 2003-2025 Farlex, Inc
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.