| abstract |
(57) [Summary] [Structure] A low molecular weight resin [A] comprising a polymer component having a specific repeating unit and a polymer component having a polar group, A monomer (C) containing a functional group that forms a formyl group by a formyl group and / or a hydrophilic treatment and a monomer (D) having a substituent group containing a silicon atom and / or a fluorine atom are A method for producing a lithographic printing original plate containing at least one kind of non-aqueous solvent-based dispersed resin particles obtained by a polymerization reaction in the presence of a dispersion stabilizing resin soluble in an aqueous solvent. [Effects] The present invention has good water retention properties, and further has excellent printed images and high printing durability even under severe conditions. Further, it is also effective for a scanning exposure method using a semiconductor laser beam. |