| 摘要 |
PROBLEM TO BE SOLVED: To develop a heat-sensitive recording material which has a moderate black color developing color tone for an image, and is excellent in preservability such as color developing sensitivity, heat resistance, humidity resistance and light fastness. SOLUTION: In this heat-sensitive recording material, a heat-sensitive color developing layer material which contains compounds at least more than one type selected from a specific black color developing compound, specific red color developing compound, developing compound of crystal violet lactone or benzoyl leuco methyl blue and bisphenol S derivative, furthermore 2-((2'- hydroxy-5'-methylphenyl)-benzotriazole, 2-(2'-hydroxy-5'-t-octhylphenyl)- benzotriazole, 4,4'-buthlidene-bis(3-methyl-6-t-buthylphenol), 1,3,5-trimethyl-2,4,6- tris(3,5-di-t-hydroxybenzyl), and benzene is provided on a plastic film or synthetic paper. |
