G - Physics – 03 – C
Patent
G - Physics
03
C
96/6
G03C 1/54 (2006.01) G03F 7/016 (2006.01) G03F 7/16 (2006.01)
Patent
CA 1145998
Case 790303 ULTRA HIGH SPEED PRESENSITIZED LITHOGRAPHIC PLATES Abstract of the Disclosure Presensitized lithographic plates having a diazo layer are prepared such that they exhibit a photospeed rendering them suitable for ultra high speed operations including use within laser platemaking systems. These ultra high speed plates have a diazo layer that is exceedingly thin while still being generally uniformly distributed throughout the plate area. The process includes extracting a significant quantity of diazo material from a diazo layer on a presensitized plate substrate. Plates thus formed are useful in laser exposures for facsimile transmissions, as projection plates, as camera back plates, for step and repeat plate work, and where low intensity light sources are used in conjunction with very large plates.
350959
Osler Hoskin & Harcourt Llp
Richardson Graphics Company
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