EP 0258288 B1 19910508 - PHOTOGRAPHIC COLOR DEVELOPING COMPOSITIONS WHICH ARE ESPECIALLY USEFUL WITH HIGH CHLORIDE PHOTOGRAPHIC ELEMENTS
Title (en)
PHOTOGRAPHIC COLOR DEVELOPING COMPOSITIONS WHICH ARE ESPECIALLY USEFUL WITH HIGH CHLORIDE PHOTOGRAPHIC ELEMENTS
Publication
Application
Priority
US 82209786 A 19860124
Abstract (en)
[origin: WO8704534A2] Photographic color developing compositions which are especially useful in the processing of high chloride silver halide photographic elements are free, or at least substantially free, of bromides; optionally contain a small amount of sulfite; and comprise (1) a primary aromatic amino color developing agent, (2) an N,N-dialkylhydroxylamine, (3) at least one sequestering agent which functions to sequester iron and (4) at least one sequestering agent which functions to sequester calcium. The developing compositions exhibit excellent stability. They also provide minimal development restraint which permits the use of very short development times, as needed for rapid access processing.
IPC 1-7
IPC 8 full level
G03C 11/00 (2006.01); G03C 1/035 (2006.01); G03C 5/305 (2006.01); G03C 7/30 (2006.01); G03C 7/407 (2006.01); G03C 7/413 (2006.01); G03C 7/42 (2006.01)
CPC (source: EP)
G03C 5/3053 (2013.01); G03C 7/413 (2013.01)
Citation (examination)
EP 0211437 A2 19870225 - FUJI PHOTO FILM CO LTD [JP]
Designated contracting state (EPC)
BE CH DE FR GB LI NL
DOCDB simple family (publication)
WO 8704534 A2 19870730; WO 8704534 A3 19880324; CA 1314424 C 19930316; EP 0258288 A1 19880309; EP 0258288 B1 19910508; JP H06100807 B2 19941212; JP S63502222 A 19880825
DOCDB simple family (application)
US 8700021 W 19870108; CA 523217 A 19861118; EP 87900926 A 19870108; JP 50079387 A 19870108