The present invention relates to a planographic printing plate precursor comprising
a substrate comprising a hydrophilic surface having disposed thereon a heat-sensitive
layer containing a thermoplastic particulate polymer having functional groups capable
of interacting with the hydrophilic surface. Preferably, hydrophilic graft polymer
chains are present on the hydrophilic surface of the substrate. The present invention
further relates to a planographic printing plate precursor comprising a substrate
comprising a hydrophilic surface having disposed thereon a heat-sensitive layer
comprising microcapsules comprising a compound having functional groups capable
of interacting with the hydrophilic surface. In addition, the present invention
relates to methods of printing with the planographic printing plate precursors.