Origin of lithographylitho- + -graphy
A press for lithography.
An example of lithography is printing a message on a stone using grease to repel unwanted ink.
(countable and uncountable, plural lithographies)
1813. From German Lithographie, from Ancient Greek Î»Î¯Î¸Î¿Ï‚ (lithos, “stone") + Î³ÏÎ¬Ï†ÎµÎ¹Î½ (graphein, “to write").
lithography - Computer Definition
A printing technology that dates back to 1798 when Alois Senenfelder developed a method of imaging limestone from which a print was produced. Based on the principle that oil and water do not mix, an aluminum or plastic plate is coated with a photopolymer film that is exposed to light through a photographic mask. The exposed areas are chemically "hardened," and the unexposed areas are dissolved when the plate is put through a chemical process, which is the next stage. When printing a page, the plate is dampened, and the water adheres only to the unexposed, non-image areas, which repell the greasy ink that is applied to the plate immediately thereafter. The most common lithographic printing uses the offset method, in which the ink is "offset" onto a rubber-coated cylinder that is pressed against the paper. See offset press.
- The art of lithography greatly affected the production of maps.
- Copperengraving, for which it was formerly noted, is no longer carried on; but printing, lithography and publishing have acquired a considerable development, one of the best-known Continental newspapers being the Allgemeine Zeitung or Augsburg Gazette.
- For the nature and method of preparing these surfaces see respectively Engraving (and allied articles), Lithography and Typography.
- It has departments of pharmacy, chemistry, electrical wiring, lithography, house-painting, printing, carpentry, moulding, tile-setting, bricklaying, machinery and applied science.
- For details of the various methods of reproduction see Lithography; Process, &C.