Method for preparation of lithographic printing plate having add

Details Method for preparation of lithographic printing plate having add Method for preparation of lithographic printing plate having add

1978-11-30

1980-04-15

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430323, 430524, 430286, G03F 702, G03C 500

Patent

active

041982363

ABSTRACT:
A lithographic printing plate is prepared from a layer of a photopolymerizable composition comprising an oleophilic macromolecular organic binder and a leachable hydrophilic ethylenically unsaturated compound by exposing the layer and then leaching the compound from the unexposed areas by treating with a suitable developing solvent, preferably water, producing an oleophilic surface. A similar plate may be prepared from a composition containing a hydrophilic binder and oleophilic leachable compound by imagewise exposure and solvent leaching producing an oleophilic surface in exposed areas and a hydrophilic surface in unexposed areas.

REFERENCES:
patent: 3475171 (1969-10-01), Alles
patent: 3751259 (1973-08-01), Bauer et al.
patent: 3784378 (1974-01-01), Gramas
patent: 4147549 (1979-04-01), Held

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