Electrophotographic lithograph printing plate material

Details Electrophotographic lithograph printing plate material Electrophotographic lithograph printing plate material

1991-08-27

1993-02-09

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

To produce printing surface

430 92, G03G 509, G03G 1326

Patent

active

051852276

ABSTRACT:
An electroghraphic lithograph printing plate material having an enhanced spectral sensitivity to semiconductor laser rays, comprises a electroconductive water-resistant support and electrophotographic layer formed on the support and comprising a photoconductive zinc oxide, a binder resin and a sensitizing dye material comprising (a) 30 to 99% by weight of a low adsorption sensitizing dye for which the zinc oxide exhibits a low adsorption rate of less than 90% and (b) 1 to 70% by weight of a high adsorption sensitizing dye for which the zinc oxide exhibits a high adsorption rate for 90% or more, the adsorption rate being measured by spectrophotometry.

REFERENCES:
patent: 3469979 (1969-09-01), Farrarini
patent: 4279961 (1981-07-01), Fujioka et al.
patent: 4592977 (1986-06-01), Naganuma et al.

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