POSITIVE TYPE PHOTOSENSITIVE RESIN COMPOSITION, POSITIVE TYPE PLANOGRAPHIC PRINTING PLATE PRECURSOR, AND METHOD OF PREPARING PLANOGRAPHIC PRINTING PLATE

摘要

Provided is a positive type photosensitive resin composition including: a polymer compound which contains, in a main chain thereof, a sulfonamide group and a structure represented by Formula A-1; and an infrared absorbent. In Formula A-1, X represents —NR¹—, —S—, or —O—, R¹ represents a hydrogen atom or an alkyl group, and each symbol “*” independently represents a bonding position with respect to another structure.;