Precursor for waterless lithographic printing plate

摘要

A precursor for waterless lithographic printing plates which can be inspected without the need of a post-dyeing step, can be handled in a light room, and has a silicone rubber layer having satisfactory dye fixation. The precursor for waterless lithographic printing plates comprises a base and layers formed thereon comprising a photosensitive or heat-sensitive layer and a silicone rubber layer, and is characterized in that the silicone rubber layer contains a color pigment. By further incorporating a pigment dispersant comprising an organic complex compound comprising at least one metal and an organic compound into the silicone rubber layer, a better effect is obtained. When the organic complex compound contains aluminum and/or titanium as the metal, an even better effect is obtained.