申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0809145A1
公开(公告)日:1997-11-26
A heat-sensitive recording material having excellent lightfastness and raw stock storability is disclosed. The material includes a support and a heat-sensitive recording layer provided on the support, and the heat-sensitive recording layer contains a diazo compound and a coupler. The coupler contains at least one species of pyrazolone compounds represented by the following formula (1):
wherein Ar represents a phenyl group, a naphthyl group, or an aromatic heterocyclic group, any one of which may have a substituent bonded to the nucleus, said substituent may be a halogen atom, a cyano group, a trifluoromethyl group, an alkyl group, an aryl group, an alkoxycarbonyl group, a carbamoyl group, or a sulfamoyl group; R1 and R2 independently represent an alkyl group, an alkenyl group, or an aryl group, or R1 and R2 may be linked to each other so as to form a heterocycle.
本发明公开了一种热敏记录材料,它具有优异的耐光性和原材料储存性。该材料包括一个支架和一个设置在支架上的热敏记录层,热敏记录层包含一个重氮化合物和一个耦合剂。耦合剂包含至少一种由下式(1)表示的吡唑酮化合物:
其中 Ar 代表苯基、萘基或芳香杂环基,其中任何一个基团的核上都可以键合一个取代基,所述取代基可以是卤素原子、氰基、三氟甲基、烷基、芳基、烷氧羰基、氨基甲酰基或氨基磺酰基;R1 和 R2 独立地代表一个烷基、一个烯基或一个芳基,或者 R1 和 R2 可以相互连接以形成一个杂环。