Lithographic printing plate

Details Lithographic printing plate Lithographic printing plate

1995-09-12

1997-06-10

Rodee, Christopher D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430 18, 430302, G03G 1326

Patent

active

056374283

ABSTRACT:
A lithographic printing plate formed by charging a printing original plate which comprises an electroconductive support and provided thereon at least one photosensitive layer containing a photoconductive compound and a positive working photosensitive composition, imagewise exposing the printing original plate to form a latent image, forming a toner image with a liquid developer, exposing the whole surface of the positive working photosensitive composition with an active light, and removing the photosensitive layer in a non-image area other than the toner image area with an eluting solution comprising an alkaline solvent is disclosed. The positive working photosensitive composition contains (a) a compound having at least two enol ether groups represented by formula (I):

REFERENCES:
patent: 4916046 (1990-04-01), Doessel
patent: 5364738 (1994-11-01), Kondo et al.
patent: 5380612 (1995-01-01), Kojima et al.

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