| abstract |
A positive working heat-sensitive lithographic printing platenprecursor is disclosed which comprises a support having anhydrophilic surface and a coating, provided on the hydrophilicnsurface, wherein the coating comprises a spacer, which is a crosslinkednpolysiloxane particle, having a particle size larger than 0.6npm, for improving the scuff-mark resistance of the coating.nFurthermore, the coating comprises an infrared light absorbingnagent, an oleophilic resin soluble in an aqueous alkaline developernand a developer resistant means. |