Photographic material

Abstract

Abstract PURPOSE:To prevent desensitization, forgging, staining, etc. and obtain sufficient coloring density by adding a precursor of a specific aromatic primary amine developing agent to one or more layers such as a silver halide emulsion layer contg. a diffusion resistant coupler and other layers. CONSTITUTION:To a silver halide emulsion layer contg. a diffusion resistant coupler or other layer such as a middle layer is added a presursor of an aromatic primary amine developing agent represented by the formula [where each of R1 and R2 is H or 1-6C (substituted) alkyl, R1 R2 may form a heterocyclic ring together with N, each of R3-R6 is H, halogen, OH, amino, alkoxy, acylamido, sulfonamido, alkylsulfonamido or 1-6C (substituted) alkyl, R3 and R6 or R1 and R2 may form a 5-or 6-membered ring, R7 is 4-30C alkyl and n is 1-3]. the precursor added is 0.1-10 times by mol as much as total silver in the photosensitive material per unit area. Thus, the resulting material can be developed with an alkali activator soln. without requiring a conventional color developer.

Inventors

• 👤 Yutaka Kaneko
• 👤 Hidetaka Ninomiya
• 👤 Shigeto Hirabayashi
• 👤 Satoru Kawakatsu

Bibliographic Details