EP 0226849 B1 19910814 - PROCESS FOR FORMING COLOR IMAGE
Title (en)
PROCESS FOR FORMING COLOR IMAGE
Publication
Application
Priority
- JP 24271286 A 19861013
- JP 26412585 A 19851125
Abstract (en)
[origin: EP0226849A2] A process for forming a color image is disclosed, comprising developing a silver halide photographic material using a developer containing an aromatic primary amine in the presence of at least one couplers represented by the following formulae (I) and (II): <CHEM> wherein R1 represents an alkyl group, an aryl group, or a heterocyclic group; R2 represents a hydrogen atom or a substituent group; and X represents a hydrogen atom or a coupling split-off group: <CHEM> wherein R1 and X have the same meanings as in the formula (I), respectively; and R'2 represents an alkyl group, an aryl group, an alkylthio group, an arylthio group, or a heterocyclic thio group. According to the process of the invention, sensitivity, gradation (gamma) and color density of the developed image are improved.
IPC 1-7
IPC 8 full level
G03C 7/305 (2006.01); G03C 7/38 (2006.01)
CPC (source: EP)
G03C 7/30529 (2013.01); G03C 7/3835 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0226849 A2 19870701; EP 0226849 A3 19880907; EP 0226849 B1 19910814; DE 3680887 D1 19910919
DOCDB simple family (application)
EP 86116345 A 19861125; DE 3680887 T 19861125