LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD FOR PREPARATION OF LITHOGRAPHIC PRINTING PLATE

摘要

A lithographic printing plate precursor comprising: an aluminum support having a hydrophilic surface; and a photosensitive layer comprising a binder polymer having an acid value of 0.3 meq/g or less, wherein the photosensitive layer comprises a pigment dispersed with a pigment dispersant which is free from a -COOH group, a -PO₃H₂ group and a -OPO₃H₂ group.