| 摘要 |
PROBLEM TO BE SOLVED: To enhance the infrared laser beam absorbing efficiency and reduce the degree of coloring of the texture by providing a thermally sensitive layer containing an infrared absorptive coloring matter consisting of organic silver salt, its developing agent and a specific corrosslinked indolenine compound, and a water-soluble binder, on a support. SOLUTION: A thermally sensitive layer containing an infrared absorptive coloring matter consisting of organic silver salt, its developing agent and a specific pocrosslinked indolenine compound expressed by formula, and a water- soluble bonder, is formed on a support. In the formula, Z is benzene, naphthalene or a complex aromatic ring; T is O, S, Se N(R<1> ), C(R<2> ) (R<3> ) or C(R<4> )=C(R<5> ); R<1> -R<3> are alkyl, alkenyl, aryl; R<4> , R<5> are H, halogen, alkyl, aryl, alkoxy, aryloxy carboxy, acyl, acylamino, carbamoyl, sulfamoyl and sulfonamide groups; Q is 5-7 membered rings; L is a trivalent linked group; and X is anion. |
