EP 0025775 A3 19820512 - PROCESS FOR THE PRODUCTION OF A MONOCHROMATIC COLOUR IMAGE, AND PHOTOGRAPHIC MATERIAL SUITED THEREFOR

Title (en)

PROCESS FOR THE PRODUCTION OF A MONOCHROMATIC COLOUR IMAGE, AND PHOTOGRAPHIC MATERIAL SUITED THEREFOR

Publication

EP 0025775 A3 19820512 (DE)

Application

EP 80810289 A 19800912

Priority

GB 7932291 A 19790918

Abstract (en)

[origin: US4315069A] Color photographic material is described in which a yellowish image is formed which can be used to print black and white prints. Also present in the layer is a small amount of a more reactive coupler which produces a colored image to which black and white paper is not sensitive. This more reactive coupler reduces the fog in the highlight areas. Most preferably small amounts of other couplers are present which result in a green or brown image which makes it easier for the operator to focus the image.

IPC 1-7

G03C 7/30; G03C 7/32

IPC 8 full level

G03C 1/00 (2006.01); G03C 7/30 (2006.01)

CPC (source: EP US)

G03C 7/30 (2013.01 - EP US)

Citation (search report)

GB 492518 A 19380919 - IG FARBENINDUSTRIE AG
BE 609281 A
CH 406841 A 19660131 - FERRANIA SPA [IT]
DE 750971 C 19450205
DE 2038199 A1 19710225 - FUJI PHOTO FILM CO LTD
GB 1160524 A 19690806 - EASTMAN KODAK CO [US]

Designated contracting state (EPC)

BE CH DE FR GB IT

DOCDB simple family (publication)

EP 0025775 A2 19810325; EP 0025775 A3 19820512; EP 0025775 B1 19850529; DE 3070702 D1 19850704; JP S5651740 A 19810509; US 4315069 A 19820209

DOCDB simple family (application)

EP 80810289 A 19800912; DE 3070702 T 19800912; JP 12804680 A 19800917; US 18609880 A 19800911