Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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heat-set ink

A printing ink manufactured in such a manner as to enable it to dry quickly, thus allowing for higher speed printing. The materials used in manufacture vary but usually include a concentrated pigment, synthetic resins, and one of the volatile oils. Following printing, the printed web of paper is heated to a temperature of approximately 350° F. (177° C.) which volatilizes the oil, after which the web is rapidly cooled by passing it through chilled rollers which hardens the residue. (140 , 276 )

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