Lithographic printing method and printing plate precursor for li

Details Lithographic printing method and printing plate precursor for li Lithographic printing method and printing plate precursor for li

1998-09-14

2000-04-11

Baxter, Janet

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430302, 1014631, 101467, G03C 1100, G03F 712

Patent

active

060486546

ABSTRACT:
A a lithographic printing method comprising repetition of the steps of exposing a printing plate precursor having on the surface thereof a thin layer comprising TiO.sub.2, ZnO or at least one compound selected from the group consisting of RTiO.sub.3 wherein R represents an alkaline earth metal atom, AB.sub.2-x C.sub.x D.sub.3-x E.sub.x O.sub.10 wherein A represents a hydrogen atom or an alkali metal atom; B represents an alkaline earth metal atom or a lead atom; C represents a rare earth atom; D represents a metal atom of the group 5A of the Periodic Table; E represents a metal atom of the group 4A of the Periodic Table; and x represents a number of from 0 to 2, SnO.sub.2, Bi.sub.2 O.sub.3, and Fe.sub.2 O.sub.3 to active light to make the exposed area hydrophilic, and making the hydrophilic area hydrophobic by heat treatment.

REFERENCES:
patent: 3573040 (1971-03-01), Back
patent: 3717464 (1973-02-01), Tandy
patent: 4836106 (1989-06-01), Afzali-Ardakani et al.
patent: 5385092 (1995-01-01), Lewis et al.

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