| 摘要 |
PROBLEM TO BE SOLVED: To obtain the direct waterless lithographic printing plate superior in sensitivity and image reproduction performance and ink receptivity by incorporating a linear organopolysiloxane and a reactive silane compound in a silicone rubber layer, and titanium monooxide and the like as a near infrared absorber in a photosensitive layer. SOLUTION: The laser direct waterless photosensitive lithographic printing plate has on a substrate at least the photosensitive layer the silicone rubber layer in this order. This silicon rubber layer contains the linear polysiloxane having hydroxyl groups on both ends and the reactive silane compound, and the photosensitive layer contains as the near infrared absorber, the titanium monooxide or at least one of (thio)pyriliumpoly-methinecyanine dyes, and this near infrared absorber is liable to cause abrasion due to heat occurring absorption of the laser beams. |
