Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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organic pigments

Originally, pigments obtained from vegetable or animal materials, as distinguished from the inorganic pigments obtained from minerals. More recently, however, pigments have been classed as organic if they contain the element carbon in their composition. Most modern organic pigments are prepared synthetically from coal-tar derivatives, such as phthalocyanine blue, alizarin crimson, and the lakes produced from synthetic dyes. (233 )

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