EP0866364A1 - Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale bleue - Google Patents

Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale bleue Download PDF

Info

Publication number
EP0866364A1
EP0866364A1 EP98103848A EP98103848A EP0866364A1 EP 0866364 A1 EP0866364 A1 EP 0866364A1 EP 98103848 A EP98103848 A EP 98103848A EP 98103848 A EP98103848 A EP 98103848A EP 0866364 A1 EP0866364 A1 EP 0866364A1
Authority
EP
European Patent Office
Prior art keywords
sensitive
silver halide
blue
halide emulsion
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98103848A
Other languages
German (de)
English (en)
Other versions
EP0866364B1 (fr
Inventor
Jörg Dr. Siegel
Hans-Ulrich Dr. Borst
Peter Dr. Bell
Ralf Dr. Büscher
Heinz Dr. Reif
Jürgen Dr. Jung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0866364A1 publication Critical patent/EP0866364A1/fr
Application granted granted Critical
Publication of EP0866364B1 publication Critical patent/EP0866364B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G03C1/14—Methine and polymethine dyes with an odd number of CH groups
    • G03C1/16—Methine and polymethine dyes with an odd number of CH groups with one CH group
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges

Definitions

  • the invention relates to a color photographic recording material by a special sensitization an increased sensitivity to light from the blue Spectra area.
  • the blue-sensitive layer package is usually used in color negative films (CN film) so sensitized that the sensitization maximum is about 470 nm and the flank of the Sensitization band drops steeply towards the neighboring green spectral range.
  • the sensitization curve of a typical CN film is shown in FIG. 1. To this In this way, good color separation and high brilliance of the CN film are achieved.
  • EP-A-0 409 019 e.g. a color photographic recording material with improved color rendering described which is achieved in that, for example both the green sensitive and red sensitive silver halide emulsion layers by using one or more so-called gap sensitizing dyes additional sensitization to light from the gap between two neighboring main spectral ranges in the present case between green and red (580 - 620 nm).
  • gap sensitizing dyes additional sensitization to light from the gap between two neighboring main spectral ranges in the present case between green and red (580 - 620 nm).
  • This will make the adjacent spectral sensitivity curves raised in the area of the subspectral sensitivity (gap), so that when exposed in this area requires a maximum of 0.6 logarithmic exposure units, by the same color density as in the area of the neighboring main spectral sensitivity to create.
  • the sensitivity of the blue-sensitive layer package can be increased without disadvantages for the color rendering in that the sensitization band in the range of the main spectral absorption blue (460 - 480 nm) in all Sub-layers of the blue-sensitive layer package symmetrical, i.e. towards both to larger as well as to smaller wavelengths.
  • the spectral sensitivity of photographic layers can depend not only on spectral sensitization but also on how the incident light is modified in terms of its spectral distribution by absorption processes within the layers, e.g. by filter dyes absorbing in the spectral sensitivity range, it is conceptually more correct, instead of sensitization band and sensitization maximum Designations Sensitivity curve "and This applies in particular to blue-sensitive layers due to the usual use of UV absorber compounds. For this reason, the latter designations are used in the description of the present invention when it concerns blue-sensitive layers, while in context the description with the description of green-sensitive or red-sensitive layers Sensitization band "and Sensitization maximum "are maintained.
  • the setting of the sensitivity curve characterized according to the invention is achieved, for example, by starting with the sensitization of the layers concerned from a mixture of sensitizing dyes, at least one of which has a sensitizing maximum in the range of the main spectral sensitivity, while one or more other sensitizing dyes of the mixture have a sensitizing maximum, which is shifted slightly towards shorter and / or longer wavelengths compared to the sensitization maximum of the first-mentioned sensitizing dye, and that the proportion of the latter sensitizing dyes in the mixture is increased accordingly.
  • a conventional blue sensitizing dye Blue
  • a sensitizing dye with a long-shifted sensitization maximum Long blue
  • the proportion of the latter dye in the mixture can be increased accordingly in order to set a sensitization curve widened according to the invention.
  • the same measure will expediently be used for all sub-layers of the blue-sensitive silver halide emulsion layer unit, even if the dyes and / used in the various sub-layers or their mixing ratios do not have to match.
  • the content of UV absorber compounds with an absorption maximum between 360 and 390 nm in layers arranged above the blue-sensitive silver halide emulsion layer unit is not more than 100 mg / m 2 in total.
  • the silver halide emulsions are sensitized in the usual way.
  • the Sensitizing dyes can be mixed simultaneously or individually in succession Silver halide emulsion can be added. The addition of one or more sensitizing dyes already during the grain growth phase and / or during the chemical ripening is possible.
  • color photographic recording materials are, in particular, color negative films, and color reversal films.
  • An overview of typical color photographic materials as well as preferred embodiments and processing processes can be found in Research Disclosure 37038 (February 1995).
  • the photographic materials consist of a support on which at least one photosensitive Silver halide emulsion layer is applied.
  • An overview of carrier materials and on the front and back of the auxiliary layers applied is in Research Disclosure 37254, Part 1 (1995), p. 285.
  • the color photographic materials usually contain at least one red-sensitive, green sensitive and blue sensitive silver halide emulsion layer and if necessary, intermediate layers and protective layers.
  • Color photographic films such as color negative films and color reversal films show in the the order given below on the carrier 2 or 3 red-sensitive, cyan-green domes Silver halide emulsion layers, 2 or 3 green sensitive, purple coupling Silver halide emulsion layers and 2 or 3 blue-sensitive, yellow-coupling silver halide emulsion layers on.
  • the layers of the same spectral sensitivity differ in their photographic sensitivity, with the less sensitive Sub-layers are usually arranged closer to the carrier than the more sensitive ones Sub-layers.
  • Deviations in the number and arrangement of the light-sensitive layers can lead to Achieve certain results.
  • all can be highly sensitive Layers to form a layer package and all low-sensitivity layers another layer package can be summarized in a photographic film in order to Increase sensitivity (DE-A-25 30 645).
  • Essential components of the photographic emulsion layers are binders, silver halide grains and color coupler.
  • Photographic materials with camera sensitivity usually contain silver bromoiodide emulsions, which may also contain small amounts of silver chloride can.
  • Photographic copying materials contain either silver chloride bromide emulsions with up to 80 mol% AgBr or silver chloride bromide emulsions with over 95 mol% AgCl.
  • the maximum absorption the dyes formed from the couplers and the color developer oxidation product is preferably in the following ranges: yellow coupler 430 to 460 nm, Magenta couplers 540 to 560 nm, cyan couplers 630 to 700 nm.
  • the color couplers are the relevant silver halide emulsion layer units or their sub-layers spatially and spectrally assigned.
  • Spatial assignment is understood to mean that the color coupler is in one such a spatial relationship to the silver halide layer in question that an interaction between them is possible, which is a pictorial match between the silver image formed during development and that from the color coupler color image generated. This is usually achieved by the color coupler in the silver halide emulsion layer itself or in an adjacent one possibly non-photosensitive binder layer.
  • Spectral assignment means that the spectral sensitivity of the relevant light sensitive silver halide emulsion and the color of the from the spatially assigned color couplers generated partial color image in a certain relationship stand with each other, the spectral sensitivity of each individual color separation (Red, green, blue) a complementary colored partial color image (cyan, magenta, yellow) assigned.
  • Color photographic films are used to improve sensitivity, graininess, Sharpness and color separation are often used when reacting with the compounds Developer oxidation product release compounds that are photographically active, e.g. DIR couplers that release a development inhibitor.
  • the mostly hydrophobic color coupler, but also other hydrophobic components of the Layers are usually dissolved in high-boiling organic solvents or dispersed. These solutions or dispersions are then in an aqueous Binder solution (usually gelatin solution) emulsifies and lie after drying of the layers as fine droplets (0.05 to 0.8 mm diameter) in the layers in front.
  • aqueous Binder solution usually gelatin solution
  • Suitable high-boiling organic solvents, methods for incorporation into the Layers of photographic material and other methods, chemical compounds to be incorporated into photographic layers can be found in Research Disclosure 37254, Part 6 (1995), p. 292.
  • the usually arranged between layers of different spectral sensitivity non-light-sensitive intermediate layers can contain agents that have a unwanted diffusion of developer oxidation products from a photosensitive in another light-sensitive layer with different spectral sensitization prevent.
  • Suitable connections can be found in Research Disclosure 37254, Part 7 (1995), p. 292 and in Research Disclosure 37038, Part III (1995), p. 84.
  • the photographic material can also contain UV light-absorbing compounds, whiteners, spacers, filter dyes, formalin scavengers, light stabilizers, antioxidants, D min dyes, additives to improve the stability of dyes, couplers and whites as well as to reduce the color fog, plasticizers (latices), Contain biocides and others.
  • Suitable compounds can be found in Research Disclosure 37254, Part 8 (1995), p. 292 and in Research Disclosure 37038, Parts IV, V, VI, VII, X, XI and XIII (1995), p. 84 ff.
  • the layers of color photographic materials are usually hardened, i.e., that Binder used, preferably gelatin, is replaced by suitable chemical Process networked.
  • Suitable hardener substances can be found in Research Disclosure 37254, Part 9 (1995), p. 294 and in Research Disclosure 37038, Part XII (1995), page 86.
  • a color photographic recording material for color negative color development was produced (layer structure 1 - comparison) by applying the following layers in the order given to a transparent cellulose triacetate support. The quantities given relate to 1 m 2 . The corresponding amounts of AgNO 3 are given for the silver halide application. All silver halide emulsions were stabilized per 1 mol AgNO 3 with 0.5 g 4-hydroxy-6-methyl-1,3,3a, 7-tetraazaindene.
  • Sensitizing dyes used in layer structure 1 are Sensitizing dyes used in layer structure 1:
  • the material After exposing a gray wedge, the material is processed using a color negative development process, which is carried out in The British Journal of Photography ", 1974, pages 597 and 198.
  • the sensitivity maximum and the width of the sensitivity distribution [blue] at 80%, 50% and 20%, based on the maximum intensity of the sensitization band, are also used (b 80 , b 50 , b 20 ).
  • Table 1 also shows the corresponding values (b 80 , b 50 , b 20 , and sensitivity increase achieved) for the layer structures 2-6 described in the examples below.
  • CIELAB measurements are usually used for the colorimetric description of CN films.
  • the method is detailed, for example in RWG Hunt The Reproduction of Color ", Fountain Press (1988).
  • the color reproduction is characterized by means of the luminance L and the chromaticity constants a and b.
  • color differences ⁇ E can be determined, the statements about a change in the color saturation or the color shift Experience has shown that a shift of 3-5 ⁇ E units is perceptible to the human eye.
  • Table 2 shows the colorimetric characterization for layer structure 1 (comparison film) and in FIG. 3 the graphical representation of the chromaticity constants a and b specified.
  • the layer structure 2 according to the invention differs from the layer structure 1 by a reduced amount of UV absorber and by the addition of the longer-wave absorbent dye XBS-2 as follows: layer UV absorber dyes used Mixing ratio Art Amount [g] 9 - - XBS-1, XBS-2 0.8: 0.2 10th - - XBS-1, XBS-2 0.8: 0.2 11 XUV-2 0.25 - -
  • the description of the sensitivity distribution (Table 1) shows the symmetrical one Broadening of the sensitization band, especially in the area of the main spectral sensitivity.
  • the layer structure 3 according to the invention differs from layer structure 1 as follows: layer UV absorber dyes used Mixing ratio Art Amount [g] 9 - - XBS-1, XBS-2 0.5: 0.5 10th - - XBS-1, XBS-2 0.55: 0.45 11 XUV-2 0.15 - -
  • the description of the sensitivity distribution (Table 1) shows the symmetrical one Broadening of the sensitization band, especially in the area of the main spectral sensitivity.
  • the layer structure 4 according to the invention differs from layer structure 1 as follows: layer UV absorber dyes used Mixing ratio Art Amount [g] 9 - - XBS-1, XBS-2 0.55: 0.45 10th - - XBS-1, XBS-2 0.6: 0.4 11 XUV-2 0.1 - -
  • the description of the sensitivity distribution (Table 1) shows the symmetrical one Broadening of the sensitization band, especially in the area of the main spectral sensitivity.
  • the layer structure 5 differs from the layer structure 1 as follows: layer UV absorber dyes used Mixing ratio Art Amount [g] 9 - - XBS-1, XBS-2 0.2: 0.8 10th - - XBS-1, XBS-2 0.15: 0.85 11 XUV-2 0.03 - -
  • the description of the sensitivity distribution (Table 1) shows the symmetrical one Broadening of the sensitization band, especially in the area of the main spectral sensitivity.
  • the spectral sensitization of the blue, green and red sensitive layer package was carried out as follows: layer dyes used Mixing ratio 3rd XRS-4, XRS-5, XRS-3 1: 2: 0.3 4th XRS-4, XRS-5, XRS-3 1: 2: 0.28 6 XGS-1, XGS-2, XGS-3 2.5: 1: 0.9 7 XGS-1, XGS-2, XGS-3 2.5: 1: 1.0 9 XBS-1, XBS-2 0.8: 0.2 10th XBS-1, XBS-2 0.8: 0.2
  • UV absorber XUV-2 in layer 11 was reduced to 0.25 g / m 2 .
  • the spectral sensitization of the blue, green and red sensitive layer package was carried out as follows: layer dyes used Mixing ratio 3rd XGS-3, XRS-5, XRS-3 1: 2: 0.35 4th XGS-3, XRS-2, XGS-3 1: 2: 0.40 6 XGS-1, XGS-2, XGS-3 2.5: 10: 0.8 7 XGS-1, XGS-2, XGS-3 26: 1.0: 0.9 9 XBS-1, XBS-2 0.75: 0.25 10th XBS-1, XBS-2 0.75: 0.25
  • UV absorber XUV-2 in layer 11 was reduced to 0.25 g / m 2 .
  • This sensitization increases the sensitivity compared to the comparison type in all sub-layers by 30%.
  • the description of the sensitivity distribution (Table 4) shows the symmetrical broadening of the sensitization band, especially in the area of the main spectral sensitivities.
  • the colorimetric description (Table 3) shows that this results in only minor and in no way image-effective changes in the color rendering.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP98103848A 1997-03-18 1998-03-05 Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale bleue Expired - Lifetime EP0866364B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19711142A DE19711142A1 (de) 1997-03-18 1997-03-18 Hochempfindliches farbfotografisches Aufzeichnungsmaterial mit erhöhter Empfindlichkeit im blauen Spektralbereich
DE19711142 1997-03-18

Publications (2)

Publication Number Publication Date
EP0866364A1 true EP0866364A1 (fr) 1998-09-23
EP0866364B1 EP0866364B1 (fr) 2003-07-09

Family

ID=7823710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103848A Expired - Lifetime EP0866364B1 (fr) 1997-03-18 1998-03-05 Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale bleue

Country Status (4)

Country Link
US (1) US6040125A (fr)
EP (1) EP0866364B1 (fr)
JP (1) JPH10268488A (fr)
DE (2) DE19711142A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902321A1 (fr) * 1997-09-15 1999-03-17 Eastman Kodak Company Elément photographique comprenant un mélange des colorants de sensibilisation
US6159678A (en) * 1997-09-15 2000-12-12 Eastman Kodak Company Photographic element comprising a mixture of sensitizing dyes
EP1061411A1 (fr) * 1999-06-17 2000-12-20 Fuji Photo Film Co., Ltd. Emulsion photographique à l'halogénure d'argent et matériau photographique sensible à la lumière l'utilisant
EP1067430A1 (fr) * 1999-07-08 2001-01-10 Fuji Photo Film Co., Ltd. Emulsion photographique à l'halogénure d'argent et matériau photographique sensible à la lumière l'utilisant
US6582894B1 (en) 1999-03-12 2003-06-24 Fuji Photo Film Co., Ltd. Silver haide photographic emulsion and photographic light-sensitive material using same
EP2259136A1 (fr) * 2009-06-03 2010-12-08 Carestream Health, Inc. Pellicule avec colorant bleu
US8617801B2 (en) 2009-06-03 2013-12-31 Carestream Health, Inc. Film with blue dye

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644754A (en) * 1941-05-22 1953-07-07 Gevaert Photo Prod Nv Supersensitized photographic silver halide emulsions
EP0677782A1 (fr) * 1994-04-15 1995-10-18 Eastman Kodak Company Elément photographique comprenant une émulsion avec sensibilité particulière au bleu et méthode de traitement de celui-ci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0690463B2 (ja) * 1986-01-08 1994-11-14 富士写真フイルム株式会社 カラ−写真感光材料
DE3924111A1 (de) * 1989-07-20 1991-01-31 Agfa Gevaert Ag Farbfotografisches aufzeichnungsmaterial mit verbesserter wiedergabe von farb-nuancen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644754A (en) * 1941-05-22 1953-07-07 Gevaert Photo Prod Nv Supersensitized photographic silver halide emulsions
EP0677782A1 (fr) * 1994-04-15 1995-10-18 Eastman Kodak Company Elément photographique comprenant une émulsion avec sensibilité particulière au bleu et méthode de traitement de celui-ci

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902321A1 (fr) * 1997-09-15 1999-03-17 Eastman Kodak Company Elément photographique comprenant un mélange des colorants de sensibilisation
US6159678A (en) * 1997-09-15 2000-12-12 Eastman Kodak Company Photographic element comprising a mixture of sensitizing dyes
US6582894B1 (en) 1999-03-12 2003-06-24 Fuji Photo Film Co., Ltd. Silver haide photographic emulsion and photographic light-sensitive material using same
EP1061411A1 (fr) * 1999-06-17 2000-12-20 Fuji Photo Film Co., Ltd. Emulsion photographique à l'halogénure d'argent et matériau photographique sensible à la lumière l'utilisant
EP1067430A1 (fr) * 1999-07-08 2001-01-10 Fuji Photo Film Co., Ltd. Emulsion photographique à l'halogénure d'argent et matériau photographique sensible à la lumière l'utilisant
US6730468B1 (en) 1999-07-08 2004-05-04 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion and photographic light-sensitive material using the same
EP2259136A1 (fr) * 2009-06-03 2010-12-08 Carestream Health, Inc. Pellicule avec colorant bleu
US8617801B2 (en) 2009-06-03 2013-12-31 Carestream Health, Inc. Film with blue dye

Also Published As

Publication number Publication date
EP0866364B1 (fr) 2003-07-09
DE19711142A1 (de) 1998-09-24
DE59808940D1 (de) 2003-08-14
JPH10268488A (ja) 1998-10-09
US6040125A (en) 2000-03-21

Similar Documents

Publication Publication Date Title
DE1286900B (de) Gruenempfindliche supersensibilisierte Silberhalogenidemulsion
DE2101071A1 (de) Lichtempfindliche, fotografische Silberhalogenidemulsion
EP0262567A2 (fr) Film photographique couleur négatif
EP0866364B1 (fr) Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale bleue
EP0251042B1 (fr) Matériau d'enregistrement photographique couleur
DE2622924A1 (de) Farbphotographisches aufzeichnungsmaterial
DE2411105C3 (de) Verfahren zur Herstellung farbphotographischer Bilder
EP0044812B1 (fr) Procédé pour la formation d'images positives masquées en couleur selon le procédé de blanchiment des couleurs à l'argent et matériau photographique pour le procédé de blanchiment des couleurs à l'argent utilisé dans ce procédé
EP0866368B1 (fr) Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale verte
DE2853362A1 (de) Farbphotographisches aufzeichnungsmaterial mit einem dir-kuppler hoher reaktivitaet
DE2421068C2 (de) Farbphotographisches mehrschichtiges Aufzeichnungsmaterial
EP0809140B1 (fr) Matériau photographique couleur d'enregistrement ayant une sensibilité plus élevée et reproduction des couleurs améliorée
EP0866363B1 (fr) Matériau d'enregistrement photographique en couleurs à haute sensibilité avec une sensibilité accrue dans la région spectrale rouge
DE19742040C2 (de) Farbfotografisches Silberhalogenidmaterial
DE19704372A1 (de) Farbfotografisches Aufzeichnungsmaterial mit erhöhter Empfindlichkeit und verbesserter Farbwiedergabe
DE19600905C2 (de) Farbfotografisches Silberhalogenidmaterial
DE10335728B3 (de) Farbfotografisches Silberhalogenidmaterial
DE19729062A1 (de) Fotografische Silberhalogenidemulsion
DE19749589A1 (de) Farbfotografisches Silberhalogenidmaterial
DE19712692A1 (de) Farbfotografisches Aufzeichnungsmaterial mit einem nicht diffundierenden 2-Äquivalentkuppler, der bei Kupplung einen auswaschbaren Farbstoff bildet
DE19642532A1 (de) Farbfotografisches Aufzeichnungsmaterial
DE19734067A1 (de) Fotografisches Aufzeichnungsmaterial
DE19717229A1 (de) Verarbeitungsverfahren zur Erzeugung farbiger Bilder unter Verwendung eines farbfotografischen Aufzeichnungsmaterials mit mindestens einer lichtempfindlichen Silberhalogenidemulsionsschicht
DE19904871A1 (de) Fotografische Silberhalogenidemulsion
DE19616497A1 (de) Farbfotografisches Silberhalogenidmaterial

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990323

AKX Designation fees paid

Free format text: DE FR GB IT

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

RBV Designated contracting states (corrected)

Designated state(s): DE GB

17Q First examination report despatched

Effective date: 20020809

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AGFA-GEVAERT

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59808940

Country of ref document: DE

Date of ref document: 20030814

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031022

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040414

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20040921

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050314

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050331

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060305

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061003