High contrast photographic recording material and emulsion and process for their development
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0345025A1
公开(公告)日:1989-12-06
A photographic recording material and emulsion are described which are capable of providing high contrast images. The recording material and emulsion comprises negative working silver halide and contrast enhancing arylhydrazide nucleating agents of the formula.
wherein:
R is a substituted or unsubstituted alkyl having from 1 to 8 carbon atoms or a substituted or unsubstituted cycloalkyl having from 4 to 8 carbon atoms in the ring.
描述了一种能够提供高对比度图像的照相记录材料和乳剂。这种记录材料和乳剂包括卤化银负片和反差增强型芳基肼成核剂,其化学式为
其中
R 是具有 1 至 8 个碳原子的取代或未取代的烷基,或在环中具有 4 至 8 个碳原子的取代或未取代的环烷基。