申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0559195A1
公开(公告)日:1993-09-08
A novel silver halide photographic material is disclosed, which comprises at least one methine dye represented by the following formula (I):
wherein Z₁ and Z₂ each represents an atomic group required for the formation of a 5- or 6-membered nitrogen-containing heterocyclic group; R₁ represents an alkyl, aryl or heterocyclic group; R₂ and R₃ each represents an alkyl group, with the proviso that at least one of R₂ and R₃ represents an alkyl group substituted by an alkoxy or aryloxy group; L₁, L₂, L₃, L₄, L₅, L₆, and L₇ each represents a methine group; n₁ and n₂ each represents an integer 0 or 1; M represents a charge neutralizing ion; and m represents 0 or a higher number required for the neutralization of electric charge in the molecule.
本发明公开了一种新型卤化银感光材料,它包含至少一种由下式 (I) 表示的甲胺染料:
其中,Z₁ 和 Z₂ 各自代表形成 5 或 6 元含氮杂环基团所需的原子团;R₁ 代表烷基、芳基或杂环基团;R₂ 和 R₃ 各自代表烷基,但 R₂ 和 R₃ 中至少有一个代表被烷氧基或芳氧基取代的烷基;L₁、L₂、L₃、L₄、L₅、L₆ 和 L₇ 各代表一个甲基; n₁ 和 n₂ 各代表一个整数 0 或 1; M 代表一个电荷中和离子; m 代表 0 或分子中电荷中和所需的更大数目。