Direct positive photographic elements are disclosed employing internal latent image silver halide emulsions associated with developer autoxidation promoter agents constituted by 5 or 6 membered nucleus-containing heterocyclic compounds comprising an azomethine group, whose methine group is substituted with a 5-amino-1,2,4-triazolyl group, and/or copper complex compounds thereof. Preferably said direct positive photographic elements are multi-layer elements comprising internal latent image type type silver halide emulsion layers sensitized to different regions of the visible light and associated with image-dye providing compounds (photographic color couplers).
本发明揭示了采用内隐影
银卤乳剂和开发自氧化
促进剂构成的直接正像式摄影元素,所述开发自氧化
促进剂由含有5或6个成员核的
杂环化合物组成,其中包括一个偶氮甲基基团,其亚甲基基团被5-
氨基-
1,2,4-三唑基团取代,和/或其
铜络合物化合物。优选地,所述直接正像式摄影元素是多层元素,包括对可见光不同区域敏感的内隐影型
银卤乳剂层,并与提供图像
染料的化合物(摄影彩色偶合剂)相关联。