Electrophotographically sensitive material for a litho printing

Details Electrophotographically sensitive material for a litho printing Electrophotographically sensitive material for a litho printing

1986-05-28

1988-01-12

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

To produce printing surface

430302, G03G 1326

Patent

active

047191627

ABSTRACT:
An electrophotographic litho printing plate material which has a high storage stability and is useful for providing litho printing plates having an enhanced high quality image-forming durability, an improved printing durability, and an excellent dimensional stability, comprises (A) a substrate sheet; (B) an intermediate coating layer comprising (a) wet ground white mica fine particles having an average size of 5 to 50 .mu.m, (b) a waterproofing agent comprising an organic silane compound of the formula (1): R.sub.n SiX.sub.4-n (1) wherein n=1 or 2, R=aliphatic, cycloaliphatic, aromatic or heterocyclic radical having 1 to 30 carbon atoms, at least one R being chemically reactive, and X=hydrolyzable substituent, and (c) a thermoplastic resin binder; and (C) a photoconductive coating layer containing photoconductive pigment particles and an electrically insulating polymeric binder.

REFERENCES:
patent: 3951060 (1976-04-01), Crystal
patent: 4518668 (1985-05-01), Nakayama et al.

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