EP 0068249 B1 19841024 - COLOUR DIFFUSION TRANSFER PROCESS
Title (en)
COLOUR DIFFUSION TRANSFER PROCESS
Publication
Application
Priority
DE 3125058 A 19810626
Abstract (en)
[origin: US4440849A] The invention relates to a process for the production of colored images by the dye diffusion transfer principle, in which a color photographic recording material containing negative silver halide emulsions and reducible color-providing compounds is developed with an alkaline developer preparation containing a combination of at least one compound from each of at least two of the groups of compounds (A, B, C) defined below as development accelerators. With combinations of this type, equal or higher maximum color densities are obtained for a smaller overall quantity of development accelerator.
IPC 1-7
IPC 8 full level
G03C 7/30 (2006.01); G03C 8/00 (2006.01); G03C 8/22 (2006.01); G03C 8/32 (2006.01); G03C 8/36 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0068249 A1 19830105; EP 0068249 B1 19841024; DE 3125058 A1 19830105; DE 3261052 D1 19841129; JP H0225495 B2 19900604; JP S587143 A 19830114; US 4440849 A 19840403
DOCDB simple family (application)
EP 82105149 A 19820612; DE 3125058 A 19810626; DE 3261052 T 19820612; JP 10861282 A 19820625; US 39026282 A 19820621