EP 0712034 A1 19960515 - Method to spectrally sensitize tabular silver halide grains
Title (en)
Method to spectrally sensitize tabular silver halide grains
Title (de)
Verfahren zur spektralen Sensibilisierung von tafelförmigen Silberhalogenidkörnern
Title (fr)
Procédé à sensibilises spectralement des grains tabulaires à l'halogénure d'argent
Publication
Application
Priority
- EP 95203024 A 19951108
- EP 94203293 A 19941111
- EP 94203322 A 19941115
Abstract (en)
A method is disclosed for manufacturing a tabular silver halide emulsion wherein the tabular silver halide grains have an aspect ratio of at least 2:1, an average crystal diameter between 0.3 mu m and 3.0 mu m and an average thickness of less than 0.50 mu m, and more preferably less than 0.3 mu m, for at least 50 % of the total projective surface area of said grains, and wherein said method comprises the steps of precipitating said grains, spectrally sensitizing and chemically ripening, characterized by adding to the emulsion before and/or during chemically ripening at least one spectrally sensitizing dye corresponding to the general formula (I) <CHEM>
IPC 1-7
IPC 8 full level
G03C 1/005 (2006.01); G03C 1/22 (2006.01); G03C 5/17 (2006.01)
CPC (source: EP)
G03C 1/0051 (2013.01); G03C 1/22 (2013.01); G03C 5/17 (2013.01)
Citation (search report)
- [X] JP H01187544 A 19890726 - FUJI PHOTO FILM CO LTD
- [X] JP H04295842 A 19921020 - KONISHIROKU PHOTO IND
- [X] JP H05224347 A 19930903 - KONISHIROKU PHOTO IND
- [DA] EP 0404142 A1 19901227 - FUJI PHOTO FILM CO LTD [JP]
- [A] EP 0622665 A1 19941102 - KONISHIROKU PHOTO IND [JP]
- [DA] EP 0300382 A1 19890125 - EASTMAN KODAK CO [US]
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 95203024 A 19951108