infrared absorber dye, heat sensitive imaging element, heat sensitive lithographic printing plate precursor and method for producing a lithographic printing plate

摘要

INFRARED ABSORBANT DYE, HEAT SENSITIVE IMAGE FORMATION ELEMENT, HEAT SENSITIVE LITHOGRAPHIC PLATE PRECURSOR AND METHOD TO PRODUCE A LITHOGRAPHIC PRINT PLATE. The present invention relates to an infrared absorber dye as defined in claim 1. The present invention also relates to a heat sensitive imaging element comprising said IR dye and more particularly to a plaque precursor. heat sensitive lithographic printing machine comprising said IR dye. The present invention also relates to a method for producing a lithographic printing plate whereby a high contrast printed image is formed upon exposure to IR radiation or heating.