申请人:KONICA CORPORATION
公开号:EP0207794A2
公开(公告)日:1987-01-07
A silver halide photographic material containing at least one of couplers represented by the general formula (I) and at least one of the compounds represented by the general formula [XII] is disclosed. Formula [I]
wherein Z is a group of nonmetal atoms necessary to complete a nitrogen-containing heterocyclic ring where the ring formed by Z may be substituted; X is a hydrogen atom or a substituent capable of being released upon reaction with the oxidation product of a color developing agent and R is a hydrogen atom or substituent;
wherein R21 is a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group and aryl group, R22 and R23 are independently selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group and an aryl group.
The photographic material provides a dye-image highly stable against heat and light, and a formation of stain at a non-image area is prevented.
本发明公开了一种卤化银感光材料,其中至少含有一种由通式(I)表示的耦合剂和至少一种由通式[XII]表示的化合物。通式 [I]
其中 Z 是完成含氮杂环所必需的非金属原子团,由 Z 形成的环可以被取代;X 是氢原子或取代基,在与显色剂的氧化产物反应时能够被释放;R 是氢原子或取代基;
其中 R21 是氢原子或选自烷基、烯基、环烷基和芳基的基团,R22 和 R23 独立地选自烷基、烯基、环烷基和芳基的基团。
这种感光材料可提供对热和光高度稳定的染料图像,并可防止在非图像区域形成污点。