Planographic printing plate precursor and process for manufacturing planographic printing plate

摘要

A planographic printing plate precursor is provided which includes a substrate having thereon an image recording layer containing a metal compound (I-a) which causes a decarboxylation reaction by heat and releases a polyvalent metal cation, and a hydrophilic polymer (I-b) which has two or more hydrophilic groups within the same molecule and can coordinate with the polyvalent cation. Also provided is a planographic printing plate precursor including a substrate having thereon an image recording layer containing a metal complex compound (II-a) and a hydrophilic polymer (II-b) which can coordinate with a metal generated from the metal complex compound by action of heat and which has two or more hydrophilic groups within the molecule and whose main chains are crosslinked.