Metal Plate Printing: A Treatise on Printing in the Lithographic Manner from Zinc and Aluminum Plates

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Warren Crittenden Browne
National lithographer, 1909 - Algraphy - 96 pages

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Page 149 - ... The scum is rinsed away, and the greasiness removed from the surface with soap and water or a weak solution of soda. Prof. Valenta has published a process for augmenting the sensitiveness of bitumen by incorporating sulphur with it. By this process, 100 g.
Page 53 - It is a good thing, and should invariably be carried out, to pass all plate transfers through the litho. press, face down, on a sheet of smooth printing paper, afterwards heating them off before a fire.
Page 43 - Drawing on metal plates is done exactly as on stone, with pen or brush and liquid ink on the ordinary plates, or with chalk on plates grained for the purpose.
Page 161 - The medium of reducing them is principally varnish, which is used in several degrees of consistency. It is prepared in various ways, but for lithographic work that obtained from the best linseed oil alone gives excellent results.
Page 24 - ... to the extent of about a quarter of an inch, so as to...
Page 49 - In the United States at the present time, there are a number of...

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