abstract |
(57) [Problem] To provide a lithographic printing plate for an infrared laser having excellent scratch aging stability. A) A substance that absorbs light and generates heat, (B) Alkaline aqueous solution-soluble resin having phenolic hydroxyl group, (C) 2 to 1 groups represented by the following general formula (I) A lithographic printing plate for infrared laser, comprising a heat-sensitive layer containing two compounds. —R 1 —Y—CO—X—R 2 General Formula (I) (wherein X represents O, S or NR 3 , Y represents NR 3 or a single bond, R 1 has 1 to 32 carbon atoms) And R 2 and R 3 each represent a hydrogen atom or an alkyl group, alkenyl group or aryl group having 1 to 18 carbon atoms.) |