LITHOGRAPHIC PRINTING ORIGINAL PLATE, METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE USING SAME, AND METHOD FOR PRODUCING PRINTED MATTER

摘要

A lithographic printing original plate which sequentially comprises, on a substrate, at least a heat-sensitive layer and a silicone rubber layer in this order, and wherein the heat-sensitive layer contains a polyurethane that has a carbonate structure. A method for producing a lithographic printing plate using this lithographic printing original plate. A method for producing a printed matter. To provide: a lithographic printing original plate which is capable of preventing background stain, while having excellent dot reproducibility and printing durability; a method for producing a lithographic printing plate using this lithographic printing original plate; and a method for producing a printed matter.