Lithographic printing method and printing plate precursor for lithographic printing

摘要

Disclosed is a lithographic printing method comprising repetition of the steps of exposing a printing plate precursor having on the surface thereof a thin layer comprising TiO2, ZnO or at least one compound selected from the group consisting of RTiO3 wherein R represents an alkaline earth metal atom, AB2-xCxD3-xExO10 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, SnO2, Bi2O3, and Fe2O3 to active light to make the exposed area hydrophilic, and making the hydrophilic area hydrophobic by heat treatment.