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

摘要

An object is to provide a relief printing plate original for laser engraving, which is of excellent ink resistance, whether in respect of water-based ink, solvent ink or UV ink, and a method of manufacture thereof, and a relief printing plate and a method of making this. A further object is to provide a resin composition for laser engraving that is suitable for use in such a printing plate original. This resin composition for laser engraving is characterised in that it contains: (constituent A) a polyolefin having an unsaturated ethylenic group; (constituent B) a compound having two or more isocyanate groups in the molecule; and (constituent C) a polymerisation initiator.