Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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varnishing machine

A machine resembling a printing press in many respects and used to varnish printed sheets, usually for the purpose of brightening and preserving colors, as well as to impart additional wear resistance. The varnish is applied from a fountain by means of rollers, as in printing, and the sheets are then conveyed on a canvas web into a drying oven for drying in a dust free atmosphere. (320 )

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