Patent ID: 6153352
Filing Date: 2000-11-28
Classification: B41C,B41M

Abstract:
A planographic printing plate precursor obtained by laminating on a substrate (b) a layer composed of a hydrophobic polymer which can be made hydrophilic by heating, and (a) a layer composed of a hydrophilic polymer compound having in the side chain at least one of alkylene oxide groups or functional groups selected from --COOR, --COOM, --SOR, --SO.sub.2 R, --SO.sub.3 R, --SOM, --SO.sub.2 M, --SO.sub.3 M, --OH, and --NR.sup.22 R.sup.23 wherein, R represents a hydrogen atom, alkyl group, or aryl group, M represents a metal atom, R.sup.22 and R.sup.23 each independently represent a hydrogen atom, alkyl group, or aryl group and wherein the layer (a) and the layer (b) are laminated sequentially on the substrate.