| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original lithographic printing plate which can be made up as a lithographic printing plate to be developed on board the printing machine and having very high resistance to plate wear. <P>SOLUTION: In the original lithographic printing plate which has an imaging layer including a microcapsule and a hydrophilic support, the microcapsule comprising a shell formed of a polymer with a main chain containing a urethane bond or a urea bond and a core composed of a heat-reactive compound, a benzocyclobutene structure is introduced into a shell polymer. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
