Title (en)

PROCESS FOR TREATING EXPOSED PHOTOGRAPHIC SILVER DYEBLEACHING MATERIALS

Publication

EP 0274357 A3 19890920 (DE)

Application

EP 87810786 A 19871231

Priority

• CH 2287 A 19870106
• CH 161587 A 19870428

Abstract (en)

[origin: US4868098A] The processing of exposed silver dye bleach materials by applying, to the uppermost layer of the material, an amount of processing liquid which corresponds to not more than the swelling volume of the material, followed by a heat treatment. The process is particularly suitable for the production of positive colored images, especially in automatic copying or photographing machines.

IPC 1-7

G03C 5/52

IPC 8 full level

G03C 7/28 (2006.01)

CPC (source: EP US)

G03C 7/28 (2013.01 - EP US); Y10S 430/164 (2013.01 - EP US)

Citation (search report)

• [X] US 3230089 A 19660118 - ROBINSON CHARLES F, et al
• [YD] FR 2331816 A1 19770610 - CIBA GEIGY AG [CH]
• [Y] DE 2616638 A1 19761028 - FUJI PHOTO FILM CO LTD
• [A] EP 0117227 A2 19840829 - CIBA GEIGY AG [CH]
• [A] EP 0133163 A2 19850213 - CIBA GEIGY AG [CH]
• [A] EP 0149978 A2 19850731 - CIBA GEIGY AG [CH]

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0274357 A2 19880713; EP 0274357 A3 19890920; CN 87105999 A 19880720; US 4868098 A 19890919

DOCDB simple family (application)

EP 87810786 A 19871231; CN 87105999 A 19871230; US 17191788 A 19880105