| 摘要 |
<p>A photosensitive lithographic printing plate material developable with water characterized by comprising: a substrate; a hydrophilic layer formed on the substrate and comprising a water-soluble polymer, a crosslinking agent for crosslinking the water-soluble polymer, and colloidal silica, the mass ratio of the water-soluble polymer to the colloidal silica being from 1:1 to 1:3; and a photocurable photosensitive layer formed on the hydrophilic layer and comprising a polymer having sulfo and vinylphenyl groups in side chains, the vinylphenyl group being bonded to the main chain through a connecting member comprising a heterocycle, a photopolymerization initiator, and a compound for sensitizing the initiator. The photosensitive lithographic printing plate material is a photosensitive lithographic printing plate having high sensitivity and usable in a CTP system. It can be developed with water, can be developed even on a printing machine, and has excellent suitability for printing.</p> |
