There is provided a plate material for printing method based on wettability
change. The plate material is comprised of a substrate and a recording
layer including at least two polymers having a first polymer and a second
polymer surrounding the first polymer. The first polymer has a changeable
property of a receding contact angle and is comprised of a copolymer
including perfluoroalkyl-containing acrylate or perfluoroalkyl-containing
methacrylate. The second polymer has an oil-absorptive character defined
as an area ratio determined in the specification and is comprised of a
urethane polymer. The printing plate according to the present invention
exhibits excellent ink-releasability and no toning during printing
operation.