EP 0450637 A2 19911009 - Direct positive color image forming method.
Title (en)
Direct positive color image forming method.
Title (de)
Direktpositives Farbbildverfahren.
Title (fr)
Méthode de formation d'une image positive directe en couleurs.
Publication
Application
Priority
JP 9118990 A 19900405
Abstract (en)
A direct positive color image forming method is disclosed. The method comprises: imagewise exposing to light a photographic photosensitive material comprising at least one non-pre-fogged internal latent image type silver halide emulsion layer which is provided on a support and contains a magenta coupler; subjecting the photosensitive material to a fogging treatment; and simultaneously or thereafter developing the photosensitive material. The magenta coupler is a compound having the formula (I). <CHEM> in which R<1> is hydrogen or a substituent group; X is hydrogen or a group which can be eliminated by a coupling reaction with an oxidation product of an aromatic primary amine developing agent; and each of Za, Zb and Zc is -CH- , <CHEM> (R<2> is hydrogen or a substituent group), =N-or -NH-. T
IPC 1-7
IPC 8 full level
G03C 1/485 (2006.01); G03C 7/32 (2006.01)
CPC (source: EP)
G03C 1/48538 (2013.01); G03C 7/3225 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 91105377 A 19910405