| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat sensitive planographic printing plate original plate excellent in scratch resistance and solvent resistance, free from reduction in sensitivity, printing resistance and suitability even in an environment at high temperature and high humidity, and improved in storage stability. <P>SOLUTION: The planographic printing plate original plate is obtained by disposing a lipophilic layer comprising a polymer (A) containing ≥10 mol% of (a) a monomer having a sulfonamide group with at least one hydrogen atom bonded onto a nitrogen atom, (b) a monomer having an active imino group represented by -CO-NH-SO<SB>2</SB>- and (c) at least one monomer selected from acrylamides, methacrylamides, acrylic esters or methacrylic esters as polymerizing components and resin (B) having a phenolic hydroxy group in a mixing weight ratio of 50:50 to 95:5 and an alkali-soluble or alkali-dispersible overcoat layer preferably containing a photothermal conversion agent in this order on a base board having a hydrophilic surface. <P>COPYRIGHT: (C)2004,JPO |
