Title (en)

PHOTOGRAPHIC ELEMENT AND PROCESS FOR PROVIDING METAL COMPLEX COLOR IMAGES

Publication

EP 0186868 A3 19880921 (EN)

Application

EP 85116272 A 19851219

Priority

• US 68847885 A 19850102
• US 68847985 A 19850102

Abstract (en)

[origin: EP0186868A2] A process of obtaining highly stable color dyes (e.g. color masking dyes) comprises use of an element which has a support having thereon at least one silver halide emulsion layer having associated therewith an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X. In this structure, LIG is a ligand which is capable of complexing with metal ions (e.g. ferrous ions) to form a metal complex dye, and X is a group which, as a function of silver halide development, is cleaved from LIG. A color image is formed by developing the described element after imagewise exposure with a developing agent to imagewise cleave the bond between LIG and X, and treating the developed element with metal ions (e.g. ferrous ions) to form a metal complex dye image.

IPC 1-7

G03C 7/32

IPC 8 full level

G03C 7/30 (2006.01); G03C 7/333 (2006.01)

CPC (source: EP)

G03C 7/3046 (2013.01); G03C 7/333 (2013.01)

Citation (search report)

• [A] US 3186840 A 19650601 - WALTER PUSCHEL, et al
• [A] DE 1522418 A1 19690731 - AGFA GEVAERT AG
• [A] WO 8300939 A1 19830317 - KODAK LTD [GB], et al
• [A] DE 2317134 A1 19741017 - AGFA GEVAERT AG
• [A] EP 0131733 A1 19850123 - AGFA GEVAERT AG [DE]
• [A] GB 1568855 A 19800604 - FUJI PHOTO FILM CO LTD
• [A] EP 0097849 A2 19840111 - EASTMAN KODAK CO [US]
• [XPL] US 4555477 A 19851126 - WASHBURN WILLIAM N [US]
• [XPL] US 4555478 A 19851126 - RECZEK JAMES A [US], et al
• [AP] EP 0147105 A2 19850703 - EASTMAN KODAK CO [US], et al

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0186868 A2 19860709; EP 0186868 A3 19880921

DOCDB simple family (application)

EP 85116272 A 19851219