Method for making a lithographic offset plate by the silver salt

Details Method for making a lithographic offset plate by the silver salt Method for making a lithographic offset plate by the silver salt

1994-02-01

1995-08-29

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...

430244, 430248, 430432, 430398, 430463, G03C 5395, G03C 832, G03F 707

Patent

active

054459141

ABSTRACT:
The present invention provides a method for making an offset printing plate according to the silver salt diffusion transfer process using rinsing water, characterized in that alkali is added to said rinsing water before washing at most 20 m.sup.2 of said exposed and developed imaging element and/or before being in use for more than 24 hours in such an amount that a pH in said washing water between 10.5 and 13 is obtained.

REFERENCES:
patent: 2199904 (1940-05-01), Alburger
patent: 2321347 (1943-06-01), Alburger
patent: 3167429 (1965-01-01), Levy
patent: 5055381 (1991-10-01), Abe et al.
patent: 5077179 (1991-12-01), Abe et al.
patent: 5196290 (1993-03-01), Coppens et al.
patent: 5273858 (1993-12-01), Coppens et al.
Battaglia et al, "Hardening fixbaths...", Research Disclosure No. 18,728, Nov. 1979, pp.625-626.

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