EP 0232770 A2 19870819 - Method of the formation of color images.
Title (en)
Method of the formation of color images.
Title (de)
Verfahren zur Herstellung von Farbbildern.
Title (fr)
Méthode pour former des images couleur.
Publication
Application
Priority
JP 1454686 A 19860124
Abstract (en)
The present invention provides a method for the formation of color images by processing in a short period of time color photographic materials containing at least one oil-soluble coupler with a color developer which does not substantially contain benzyl alcohol, wherein a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support, the emulsion layer containing a dispersion of oleophilic fine grains having a means grain size of 0.25 mu m or less, which contain a coupler capable of forming a dye after having been coupled with an oxidation product of an aromatic primary amine developing agent, and at least one high boiling organic solvent having a dielectric constant of 4.00 or more (25 DEG C, 10 KHz), as selected from the group consisting of the following formulae (I), (II), (III), (IV) and (V): <CHEM> W1-COOW2 (II) <CHEM> <CHEM> W1-O-W2 (V) wherein W1, W2 and W3 each represents a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, aryl, or heterocyclic group; W4 represents W1, O-W1, or S-W1; n represents an integer from 1 to 5, and when n is 2 or more, each W4 may be
Colour images are prepd. from an exposed Ag halide photographic material contg., in the emulsion layer, a dispersion of oleophilic fine grains with mean grain size of 0.25 micrometers at most and contg. a colour coupler and a high b.pt. organic solvent of formulae (I) - (V) with dielectric constant of at least 4.0/25 deg.C, 10 KHz), by developing for 2 min. 30 sec. at most in a soln. contg. an aromatic primary amine developing agent and substantially no benzyl alcohol. W1-3 = opt. substd. (cyclo)alkyl, alkenyl, aryl or heterocyclyl; W4 = W1, OW, or SW,; n = 1-5; and in formula (V), W1 and W2 may be linked to form a condensed ring.
IPC 1-7
IPC 8 full level
G03C 7/26 (2006.01); G03C 7/30 (2006.01); G03C 7/388 (2006.01); G03C 7/407 (2006.01)
CPC (source: EP)
G03C 7/3885 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0232770 A2 19870819; EP 0232770 A3 19890503; EP 0232770 B1 19930407; EP 0232770 B2 19970618; DE 3785231 D1 19930513; DE 3785231 T2 19930722; DE 3785231 T3 19970911; JP H0650382 B2 19940629; JP S62172349 A 19870729
DOCDB simple family (application)
EP 87100941 A 19870123; DE 3785231 T 19870123; JP 1454686 A 19860124