Directly imageable planographic printing plate precursor and a method of producing planographic printing plates
OwnerKazuki Goto, Michihiko Ichikawa +1inventors
InventorsKazuki Goto, Michihiko Ichikawa, Norimasa Ikeda
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Abstract
A directly imageable planographic printing plate precursor which may be of the positive or negative type, has at least a heat sensitive layer on a substrate. The heat sensitive layer contains a light-to-heat conversion material and a metal-containing organic compound.
Claims17
A directly imageable planographic printing plate precursor comprising a substrate and, on the substrate, a heat sensitive layer and, on the heat sensitive layer, an ink repellant layer, said heat sensitive layer comprising a light-to-heat conversion material, an active hydrogen-group containing compound and a metal-containing organic compound without a material which generates acid.
(Amended) A method of producing a planographic printing plate in which a directly imageable planographic printing plate precursor is exposed and then developed, said precursor having at least a substrate and, on the substrate, a heat sensitive layer, said heat sensitive layer containing a light-to-heat conversion material and a metal-containing organic compound without a material which generates acid.
Dependencies are inferred from the claim text.