a method of printing in which the ink sticks to greasy areas of treated metal, stone or film and is then transferred to paper
COMMENT: Lithography was invented in 1798 by a German artist, Alois Senefelder. It was originally the art of drawing a design on stone in greasy ink, then printing from it. The surface now used is a metal plate, but the principle is the same: this is that a greasy surface attracts ink, while a wet surface repels ink. The design is drawn on the surface with greasy ink, the surface is then rolled with a damp roller to wet it, and then the inking roller passes over it, leaving ink on the parts which are greasy and not leaving ink on those parts which are wet. |
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