申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0458278A1
公开(公告)日:1991-11-27
A silver halide photographic material low in fogging generation and high in sensitivity comprising a silver halide emulsion selenium sensitized with at least one compound selected from the group consisting of compounds represented by general formulae (I) and (III):
wherein each of R₁, R₂, R₃ and R₄ represents an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group, an acyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group or a sulfamoyl group, provided that a tetramethylselenourea is excluded;
wherein each of R₈, R₉, R₁₀ and R₁₁ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group, an acyl group, a carboxyl group, a formyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group or a sulfamoyl group, provided that at least one pair of R₈ and R₉, R₉ and R₁₀, R₁₀ and R₁₁, and R₁₁ and R₈ combine to form a ring.
一种卤化银感光材料,具有低雾度和高感光度的特点,它包括一种用至少一种从通式 (I) 和 (III) 所代表的化合物组成的组中选出的化合物感光的卤化银乳剂硒:
其中 R₁、R₂、R₃ 和 R₄ 各自代表烷基、环烷基、烯基、炔基、芳基、芳基、杂环基、酰基、羧基、烷氧羰基、芳氧羰基、氨基甲酰基或氨基磺酰基,但不包括四甲基硒脲;
其中 R₈、R₉、R₁₀ 和 R₁₁ 各代表氢原子、烷基、环烷基、烯基、炔基、芳烷基、芳基、杂环基、酰基、羧基甲酰基、烷氧羰基、芳氧羰基、氨基甲酰基或氨基磺酰基、但至少有一对 R₈ 和 R₉、R₉ 和 R₁₀、R₁₀ 和 R₁₁ 以及 R₁₁ 和 R₈ 结合形成一个环。