Photographic developing composition containing a sludge inhibiting agent and use thereof in the high contrast development of nucleated photographic elements
申请人:EASTMAN KODAK COMPANY
公开号:EP0809147A1
公开(公告)日:1997-11-26
An improved photographic developing composition, for use in development of a black-and-white silver halide photographic element, is comprised of at least one developing agent and, in an amount sufficient to inhibit sludge deposition, mercapto thiadiazole glycerol propoxylate. The developing composition is broadly useful in black-and-white development but is most advantageously employed in a process for forming a high-contrast image utilizing a silver halide photographic element comprising a hydrazine compound which functions as a nucleating agent and an amino compound which functions as an incorporated booster.
一种用于黑白卤化银感光元件显影的改进型感光显影组合物由至少一种显影剂和巯基噻二唑甘油丙氧基化物组成,其中巯基噻二唑甘油丙氧基化物的用量足以抑制污泥沉积。该显影组合物广泛用于黑白显影,但在利用卤化银感光元件形成高对比度图像的工艺中使用最为有利,该卤化银感光元件包括一种用作成核剂的肼化合物和一种用作掺入增强剂的氨基化合物。