Patent ID: 7425406
Filing Date: 2008-09-16
Classification: B41C

Abstract:
1. A lithographic printing plate precursor comprising a support and an image-recording layer, wherein the image-recording layer contains an acid generator and at least one spirooxazine compound, wherein said at least one spirooxazine compound is a compound represented by the formula (IIIa): wherein X represents a nitrogen atom, R represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group, another ring (aromatic ring, aliphatic ring, or heterocyclic ring) may be condensed with rings Aa, Ba, and Ca, the rings Aa, Ba, Ca and the condensed rings thereof may each have a substituent, and the ring Ca may be an aromatic ring in which one or more carbon atoms constituting the ring Ca are substituted with hetero atoms selected from an oxygen atom, a nitrogen atom, and sulfur atom.