Electrophotographic process for the production of lithographic p

Details Electrophotographic process for the production of lithographic p Electrophotographic process for the production of lithographic p

1981-11-25

1984-03-06

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430 60, 430302, 430309, 430940, 430 96, G03G 1328

Patent

active

044354916

ABSTRACT:
A process for the production of lithographic printing plates, and a light-sensitive material for use in the process are described. The light-sensitive material comprises an electrically conductive support having a hydrophilic surface, and a positive type light-sensitive layer and a photoconductive insulative layer on the support, wherein the positive type light-sensitive layer and the photoconductive insulative layer are provided on the support as a unit layer or individually in that order, and the photoconductive insulative layer can be charged either positively or negatively. The desired lithographic printing plate can be prepared by treating the light-sensitive material by the simple process of the invention.

REFERENCES:
patent: 2939787 (1960-06-01), Giaimo
patent: 3305359 (1967-02-01), Delmont
patent: 3944417 (1976-03-01), Lind

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