Method and apparatus for making a lithographic offset plate by t

Details Method and apparatus for making a lithographic offset plate by t Method and apparatus for making a lithographic offset plate by t

1995-05-11

1996-10-01

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430248, 396604, G03C 832, G03C 806, G03F 707

Patent

active

055610277

ABSTRACT:
A method and apparatus for making an offset printing plate according to the silver salt diffusion transfer process comprises the step of washing the imaging element by applying a curtain of an aqueous medium onto the surface of the element at its silver halide emulsion layer side, across the width of the element, substantially transverse to its processing direction, and in countercurrent to the processing direction of the element.

REFERENCES:
patent: 3589261 (1971-06-01), Krikelis
patent: 4142194 (1979-02-01), Hamlin
patent: 4853727 (1989-08-01), Ganzke et al.
patent: 5273858 (1993-12-01), Coppens et al.
patent: 5449585 (1995-09-01), Coppens et al.

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