RESIN COMPOSITION FOR LASER ENGRAVING, MANUFACTURING METHOD OF RELIEF PRINTING PLATE ORIGINAL PLATE FOR LASER ENGRAVING, RELIEF PRINTING PLATE ORIGINAL PLATE, PLATEMAKING METHOD OF RELIEF PRINTING PLATE AND RELIEF PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a relief printing plate original plate for laser engraving and the manufacturing method thereof that have excellent rinsing property of engraving residue and excellent engraving sensitivity and gives a sharp engraved form, to provide a resin composition for laser engraving that is suitably used for the relief printing plate original plate, and to provide a relief printing plate produced from the printing plate original plate and a platemaking method thereof.SOLUTION: The resin composition for laser engraving comprises (component A) a binder polymer and (component B) carbon black having a pH of more than 6 and an average particle size of 500 nm or less when dispersed in water.