申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0573956A2
公开(公告)日:1993-12-15
There is disclosed a color developer and a method for processing a silver halide color photographic material using said color developer. The color developer comprises at thiourea compound represented by the formula (I):
wherein Ri, R2, R3, and R4 each represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted cycloalkylene group, provided that two or more of R1, R2, R3, and R4 each do not represent a hydrogen atom at the same time; at least one pair of R1 and R3, and R2 and R4, together may bond to form a nitrogen-containing heterocyclic ring; or at least one pair of R1 and R2, and R3 and R4, together may bond to form a ring.
本发明公开了一种显色剂和一种使用所述显色剂处理卤化银彩色感光材料的方法。该显色剂包括由式 (I) 表示的硫脲化合物:
其中 Ri、R2、R3 和 R4 各自代表一个氢原子、一个取代或未取代的烷基、一个取代或未取代的芳基或一个取代或未取代的环亚烷基,条件是 R1、R2、R3 和 R4 中的两个或两个以上各自不同时代表一个氢原子;至少一对 R1 和 R3 以及 R2 和 R4 可结合在一起形成一个含氮杂环;或至少一对 R1 和 R2 以及 R3 和 R4 可结合在一起形成一个环。