| 摘要 |
PROBLEM TO BE SOLVED: To prevent adherence or sticking of a scum to a thermal head by incorporating hollow polymer particles each having an opening obtained by cutting a part of the particles in plane in an intermediate layer on a support, and incorporating a specific diphenylsufone crosslinking type compound as a developer. SOLUTION: Hollow polymer particles each having an opening obtained by cutting a part of the particles in plane are contained in an intermediate layer formed between a support and a heat-sensitive recording layer. A diphenylsulfone crosslinking type compound represented by formula (X and Y are each linear or branched 1-12C saturated or unsaturated hydrocarbon group which may be different and may have an ether bond, R1 to R6 are each independently a halogen atom, 1-6C alkyl group, or alkenyl group, m, n, p, q, r and t are each an integer of 0 to 4, and a is an integer of 1 to 10) is contained in a developer contained in the recording layer. |
