Method for making lithographic printing plates according to the

Details Method for making lithographic printing plates according to the Method for making lithographic printing plates according to the

1994-06-29

1995-09-12

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...

430230, 430233, 430248, 430249, 430251, G03C 806, G03C 832, G03F 707

Patent

active

054495857

ABSTRACT:
The present invention provides a method for making an offset printing plate according to the silver salt diffusion transfer process having improved printing properties comprising the step of developing an imaging element comprising in the order given (i) a hydrophilic base, (ii) an image receiving layer containing physical development nuclei and (iii) a photosensitive layer containing a silver halide emulsion in the presence of a 1-phenyl-5-mercapto-tetrazole, being substituted by one or two substituents from the group consisting of:

REFERENCES:
patent: 4683189 (1987-07-01), Idota et al.
patent: 5156940 (1992-10-01), Kok et al.
patent: 5200294 (1993-04-01), De Keyzer et al.
patent: 5268253 (1993-12-01), Van Rompuy et al.
patent: 5272041 (1993-12-01), Van Rompuy et al.
patent: 5273858 (1993-12-01), Coppens et al.

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