EP 0481132 B1 19960110 - A negative silver salt diffusion transfer material
Title (en)
A negative silver salt diffusion transfer material
Title (de)
Negatives Silbersalzdiffusionsübertragungsmaterial
Title (fr)
Matériau de transfert de sels d'argent par diffusion négatif
Publication
Application
Priority
EP 90202791 A 19901019
Abstract (en)
[origin: EP0481132A1] According to the present invention a method for producing a negative image is provided, comprising the following steps: image-wise exposing an imaging element comprising on a support, a light-sensitive silver halide emulsion layer comprising silver halide grains having an average volume of not more than 0.02 mu m<3> and a layer containing non-light-sensitive water insoluble silver salt, to produce a latent image in said layer of light-sensitive silver halide developing said latent image to produce physical development nuclei of silver dissolving the non-light-sensitive silver salts using a silver salt complexing agent and allowing the thus formed silver salt complexes to diffuse to the layer containing said image-wise formed physical development nuclei of silver to image-wise deposit and develop said silver salt complexes on said image-wise formed physical development nuclei of silver in the presence of (a) developing agent(s). s
IPC 1-7
IPC 8 full level
G03C 5/58 (2006.01); G03C 8/06 (2006.01); G03C 8/28 (2006.01)
CPC (source: EP)
Citation (examination)
- EP 0290077 A2 19881109 - AGFA GEVAERT NV [BE]
- GB 2081465 A 19820217 - KONISHIROKU PHOTO IND
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0481132 A1 19920422; EP 0481132 B1 19960110; DE 69024803 D1 19960222; DE 69024803 T2 19960926; JP 3030142 B2 20000410; JP H04301632 A 19921026
DOCDB simple family (application)
EP 90202791 A 19901019; DE 69024803 T 19901019; JP 29994291 A 19911018