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).

单词	dyes, natural
释义	Dyes, Natural 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). See natural dyes See natural dyes
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