Photosensitive lithographic printing plate precursors and method

Details Photosensitive lithographic printing plate precursors and method Photosensitive lithographic printing plate precursors and method

1980-10-21

1982-08-31

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430271, 430273, 430156, G03F 702

Patent

active

043473059

ABSTRACT:
A photosensitive lithographic printing plate precursor which has a camera speed together with all the advantageous features inherent to positive type, conventional PS plates is disclosed. On an aluminum support having a hydrophilic surface, one provides first a positive type non-silver photosensitive layer capable of forming an oleophilic image, and then superposes thereon an unfogged positive type internally sensitized silver halide photographic emulsion coating.

REFERENCES:
patent: 3317322 (1967-05-01), Porter et al.
patent: 4168167 (1979-09-01), Takenaka et al.

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