| (19) |
 |
|
(11) |
EP 0 772 081 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
20.08.1997 Bulletin 1997/34 |
| (43) |
Date of publication A2: |
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07.05.1997 Bulletin 1997/19 |
| (22) |
Date of filing: 28.10.1996 |
|
| (51) |
International Patent Classification (IPC)6: G03C 1/83 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
31.10.1995 US 8292
11.01.1996 US 584762
31.10.1995 US 8157
19.12.1995 US 574510
31.10.1995 US 6980
05.01.1996 US 583394
|
| (71) |
Applicant: EASTMAN KODAK COMPANY |
|
Rochester,
New York 14650-2201 (US) |
|
| (72) |
Inventors: |
|
- Merkel, Paul Barrett
343 State Str.,
Rochester,N.Y.14650-2201 (US)
- Kestner, Melvin Michael
343 State Str.,
Rochester,N.Y.14650-2201 (US)
- Hoke, David
343 State Str.,
Rochester,N.Y.14650-2201 (US)
- Schmoeger, Jeffrey Walter
343 State Str.,
Rochester,N.Y.14650-2201 (US)
- Zengerle, Paul Leo
343 State Str.,
Rochester,N.Y.14650-2201 (US)
|
| (74) |
Representative: Parent, Yves et al |
|
Kodak-Pathé
Département Brevets et Licences
Centre de Recherches et de Technologie
Zone Industrielle
71102 Chalon-sur-Saône Cédex
71102 Chalon-sur-Saône Cédex (FR) |
|
| |
|
| (54) |
Density correction dyes for color negative films with magnetic recording layers |
(57) The invention provides a multilayer color negative photographic element comprising
a support, at least one light-sensitive silver halide emulsion layer sensitive to
each of the blue, green and red regions of the visible spectrum, a magnetic recording
layer, and a permanent density correction dye, wherein:
the spectral absorbance maximum of the density correction dye is in the range of 450-485
nm;
the ratio of the absorbance of the density correction dye at 480 nm relative to 420
nm is between 1.2 and 3.5;
the ratio of the absorbance of the density correction dye at 440 nm relative to 420
nm is between 1.25 and 2.5;
the ratio of the absorbance of the density correction dye at 510 nm relative to 480
nm is less than 0.6; and
the density correction dye is uncharged and is free of carboxyl and sulfonate groups.
The element exhibits improved color balance permitting it to be satisfactorily processed
together with conventional photographic elements to produce viewable color images.