Process for preparing a planographic printing plate

Details Process for preparing a planographic printing plate Process for preparing a planographic printing plate

1978-07-27

1980-09-09

Brown, Travis

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

Process using lithographic infectious developer

430302, 430627, 430949, G03C 500, G03F 702

Patent

active

042218586

ABSTRACT:
In a process for preparing a planographic printing plate which comprises imagewise exposing a silver halide photosensitive material comprising a support having thereon a tanning-developable silver halide photosensitive layer; tanning developing the exposed photosensitive material and washing out the untanned areas of the photosensitive layer; the improvement comprising the silver halide photosensitive layer further contains finely divided particles of an oleophilic synthetic resin in which the particles are substantially insoluble in water, are non-permeable to an alkaline solution and are not dissolved during the tanning development.

REFERENCES:
patent: T825262 (1969-11-01), Yackel
patent: 3615443 (1971-10-01), Smith
patent: 3632342 (1972-01-01), Salesin et al.
patent: 3642475 (1972-02-01), Vrancken et al.
patent: 3642480 (1972-02-01), Vrancken et al.
patent: 3852066 (1974-12-01), Levy
patent: 3852067 (1974-12-01), Levy
The Theory of the Photographic Process, 3rd ed., 1966, MacMillan Co., N.Y., pp. 304-311. (Mees et al.).

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