EP0809140A1 - Colour photographic recording material having increased sensitivity and improved colour reproduction - Google Patents

Colour photographic recording material having increased sensitivity and improved colour reproduction Download PDF

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Publication number
EP0809140A1
EP0809140A1 EP97106699A EP97106699A EP0809140A1 EP 0809140 A1 EP0809140 A1 EP 0809140A1 EP 97106699 A EP97106699 A EP 97106699A EP 97106699 A EP97106699 A EP 97106699A EP 0809140 A1 EP0809140 A1 EP 0809140A1
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EP
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Prior art keywords
silver halide
layer
sensitive
halide emulsion
red
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EP97106699A
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German (de)
French (fr)
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EP0809140B1 (en
Inventor
Joerg Dr. Siegel
Hans-Ulrich Dr. Borst
Peter Dr. Bell
Ralf Dr. Büscher
Johannes Dr. Willsau
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Agfa Gevaert NV
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Agfa Gevaert AG
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Priority claimed from DE19704372A external-priority patent/DE19704372A1/en
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    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3041—Materials with specific sensitometric characteristics, e.g. gamma, density

Definitions

  • Structurally different dyes are usually used for the spectral sensitization of the blue, green and red spectral range (see, for example, DE-A-42 31 770, DE-A-44 23 129, DE-A-44 04 003, DE-A-44 33 637, DE-A-44 34 971.
  • EP-A-0 409 019 describes and claims a color photographic recording material with improved color rendering, which is achieved in that both the green-sensitive and the red-sensitive silver halide emulsion layers by using one or more so-called gap sensitizing dyes provide additional sensitization to light from the gap between the neighboring main spectral ranges green and red.
  • the invention relates to a color photographic recording material with a layer support and at least one red-sensitive one arranged thereon Silver halide emulsion layer with a cyan coupler, at least one green-sensitive silver halide emulsion layer with a magenta coupler, at least one blue-sensitive silver halide emulsion layer with a yellow coupler and, if appropriate, further non-light-sensitive layers, characterized in that at least one of its red-sensitive silver halide emulsion layers and at least one of its green-sensitive silver halide dye-sensitizing emulsion layers and a cyanogen colorant emulsion sensitizing layer contain, which has an absorption maximum in the range of 515 - 550 nm, preferably in the range of 517 - 540 nm in methanolic solution, the absorption maximum of the additional cyanine dye in the red-sensitive silver halide emulsion layer and the absorption maximum of the additional cyanine dye in the green-sensitive layer,
  • the additional cyanine dyes mentioned are preferably carbocyanines which carry an alkyl radical substituted by an acid group on at least one of the (two) ring nitrogen atoms.
  • Particularly suitable examples of these cyanine dyes belong to the class of benzimidazole carbocyanines or the class of oxathiacarbocyanines.
  • the additional cyanine dye in the red-sensitive silver halide emulsion layer is identical to the additional cyanine dye in the green-sensitive silver halide emulsion layer.
  • Cyanine dyes which match the structure of the dye chromophore are regarded as "identical", even if the counterions which may be present to balance the charge do not match.
  • color photographic materials are color negative films, color reversal films, color positive films, color photographic paper, color reversal photographic paper, color sensitive materials for the color diffusion transfer process or the silver color bleaching process.
  • the photographic materials consist of a support on which at least one light-sensitive silver halide emulsion layer is applied. Thin films and foils are particularly suitable as supports. An overview of carrier materials and auxiliary layers applied to their front and back is shown 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 appropriate, intermediate layers and protective layers.
  • these layers can be arranged differently. This is shown for the most important products:
  • Color photographic films such as color negative films and color reversal films have 2 or 3 red-sensitive, cyan-coupling 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 carrier in the order given below.
  • the layers of the same spectral sensitivity differ in their photographic sensitivity, the less sensitive sub-layers generally being arranged closer to the support than the more sensitive sub-layers.
  • a yellow filter layer is usually applied between the green-sensitive and blue-sensitive layers, which prevents blue light from reaching the layers below.
  • Color photographic paper which is generally much less sensitive to light than a color photographic film, usually has a blue-sensitive, yellow-coupling silver halide emulsion layer, a green-sensitive, purple-coupling silver halide emulsion layer and a red-sensitive, cyan-coupling silver halide emulsion layer on the support in the order given below; the yellow filter layer can be omitted.
  • Deviations in the number and arrangement of the photosensitive layers can be carried out in order to achieve certain results. For example, all highly sensitive layers can be combined in one layer package and all low-sensitivity layers can be combined in another layer package in a photographic film in order to increase the sensitivity (DE 25 30 645).
  • Binding agents, silver halide grains and color couplers are essential components of the photographic emulsion layers.
  • Photographic materials with camera sensitivity usually contain silver bromoiodide emulsions, which may also contain small amounts of silver chloride.
  • 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 of the dyes formed from the couplers and the color developer oxidation product is preferably in the following ranges: yellow couplers 430 to 460 nm, purple couplers 540 to 560 nm, cyan couplers 630 to 700 nm.
  • hydrophobic color couplers but also other hydrophobic components of the layers, are usually dissolved or dispersed in high-boiling organic solvents. These solutions or dispersions are then emulsified in an aqueous binder solution (usually gelatin solution) and lie after drying the layers as fine droplets (0.05 to 0.8 ⁇ m diameter) in the layers before.
  • aqueous binder solution usually gelatin solution
  • the non-light-sensitive intermediate layers which are generally arranged between layers of different spectral sensitivity, can contain agents which prevent undesired diffusion of developer oxidation products from one light-sensitive layer into another light-sensitive layer with different spectral sensitization.
  • Suitable compounds 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. the binder used, preferably gelatin, is crosslinked by suitable chemical processes.
  • 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 1A - 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 per 100 g of AgNO 3 were stabilized with 0.1 g of 4-hydroxy-6-methyl-1,3,3a, 7-tetraazaindene.
  • the spectral sensitization was changed in the manner listed below:
  • the layer structures 1A to 1F were processed using a color negative process, which is described in "The British Journal of Photography” 1984, pages 597 and 598.
  • the sensitivities E purple and E blue-green of the layer structures 1B to 1F according to the invention are compared in Table 1 to those of the comparison layer structure 1A.
  • Table 2 summarizes the results of the Cielab measurements, which were used to characterize the color shift. Only the colors that are changed particularly strongly are mentioned.
  • Cielab measurements have long been used for the colorimetric description of CN films. The method is described in detail, for example, in RWG, Hunt “The Reproduction of Color “, Fountain Press (1988). In addition to the color saturation, the color shift is an important feature in the characterization of CN films compared to the respective standard color tables. A low number in Table 2 means that the deviation from the original is small is and the film can be assessed particularly cheap.
  • Table 1 Layer structure E purple E teal 1A 100 100 1B 105 130 1C 105 135 1D 110 125 1E 105 135 1F 115 140 Hue shifts [rel.
  • Cielab units Layer structure Blue flower purple modern red purple yellow-green 1A 12th 14 9 12th 9 1B 2nd 3rd 6 6 4th 1C 3rd 5 5 4th 5 1D 3rd 2nd 3rd 4th 5 1E 0 1 2nd 3rd 4th 1F 2nd 3rd 4th 5 4th

Abstract

In a colour photographic material, which has a base and red-, green- and blue-sensitive silver halide (AgX) emulsion layers containing cyan, magenta and yellow couplers respectively and optionally light-insensitive layers, the novelty is that NOTLESS 1 red-sensitive emulsion layer and NOTLESS 1 green-sensitive AgX emulsion layer contains a cyanine dye with an absorption maximum, in methanol solution, in the 515-550 nm range, in addition to the usual sensitising dyes. The difference between the absorption maximum values for the cyanine dyes used in these layers is NOTGREATER 10 nm.

Description

Üblicherweise werden für die spektrale Sensibilisierung des blauen, grünen und roten Spektralbereiches jeweils strukturell unterschiedliche Farbstoffe eingesetzt (siehe z.B. DE-A-42 31 770, DE-A-44 23 129, DE-A-44 04 003, DE-A-44 33 637, DE-A-44 34 971.Structurally different dyes are usually used for the spectral sensitization of the blue, green and red spectral range (see, for example, DE-A-42 31 770, DE-A-44 23 129, DE-A-44 04 003, DE-A-44 33 637, DE-A-44 34 971.

Es hat nicht an Bemühungen gefehlt, die bekannten farbfotografischen Aufzeichnungsmaterialien hinsichtlich ihrer Spektralempfindlichkeit und ihrer Farbwiedergabe zu verbessern. In EP-A-0 409 019 wird ein farbfotografisches Aufzeichnungsmaterial mit verbesserter Farbwiedergabe beschrieben und beansprucht, die dadurch erreicht wird, daß sowohl die grünempfindlichen als auch die rotempfindlichen Silberhalogenidemulsionsschichten durch Verwendung von einem oder mehreren sogenannten Lückensensibilisierungsfarbstoffen eine zusätzliche Sensibilisierung für Licht aus der Lücke zwischen den benachbarten Hauptspektralbereichen Grün und Rot erhalten. Hierdurch werden die benachbarten spektralen Empfindlichkeitskurven im Bereich der Nebenspektralempfindlichkeit (Lücke) angehoben, so daß höchstens 0,6 logarithmische Belichtungseinheiten im Bereich der Nebenspektralempfindlichkeit mehr erforderlich sind, um die gleiche Farbdichte wie im Bereich der benachbarten Hauptspektralempfindlichkeiten zu erzeugen.There has been no lack of efforts to improve the known color photographic recording materials with regard to their spectral sensitivity and their color rendering. EP-A-0 409 019 describes and claims a color photographic recording material with improved color rendering, which is achieved in that both the green-sensitive and the red-sensitive silver halide emulsion layers by using one or more so-called gap sensitizing dyes provide additional sensitization to light from the gap between the neighboring main spectral ranges green and red. This increases the adjacent spectral sensitivity curves in the area of the secondary spectral sensitivity (gap), so that a maximum of 0.6 logarithmic exposure units in the area of the secondary spectral sensitivity are required more in order to produce the same color density as in the area of the adjacent main spectral sensitivities.

Es wurde nun gefunden, daß nicht nur die Farbwiedergabe, sondern auch die Empfindlichkeit verbessert werden kann, wenn ein oder mehrere Cyaninfarbstoffe mit bestimmten spektralen Absorptionseigenschaften sowohl für die Sensibilisierung im grünen Spektralbereich als auch für die Sensibilisierung im roten Spektralbereich verwendet wird/werden.It has now been found that not only color rendering but also sensitivity can be improved if one or more cyanine dyes with certain spectral absorption properties are used both for sensitization in the green spectral range and for sensitization in the red spectral range.

Gegenstand der Erfindung ist ein farbfotografisches Aufzeichnungsmaterial mit einem Schichtträger und darauf angeordnet mindestens einer rotempfindlichen Silberhalogenidemulsionsschicht mit einem Cyankuppler, mindestens einer grünempfindlichen Silberhalogenidemulsionsschicht mit einem Magentakuppler, mindestens einer blauempfindlichen Silberhalogenidemulsionsschicht mit einem Gelbkuppler und gegebenenfalls weiteren nicht lichtempfindlichen Schichten, dadurch gekennzeichnet, daß mindestens eine seiner rotempfindlichen Silberhalogenidemulsionsschichten und mindestens eine seiner grünempfindlichen Silberhalogenidemulsionsschichten neben den üblichen Sensibilisierungsfarbstoffen mindestens je einen Cyaninfarbstoff enthalten, der in methanolischer Lösung ein Absorptionsmaximum im Bereich von 515 - 550 nm, vorzugsweise im Bereich von 517 - 540 nm hat, wobei das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der rotempfindlichen Silberhalogenidemulsionsschicht und das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der grünempfindlichen Schicht, jeweils gemessen in methanolischer Lösung, um nicht mehr als 10 nm und besonders bevorzugt um nicht mehr als 5 nm auseinander liegen.The invention relates to a color photographic recording material with a layer support and at least one red-sensitive one arranged thereon Silver halide emulsion layer with a cyan coupler, at least one green-sensitive silver halide emulsion layer with a magenta coupler, at least one blue-sensitive silver halide emulsion layer with a yellow coupler and, if appropriate, further non-light-sensitive layers, characterized in that at least one of its red-sensitive silver halide emulsion layers and at least one of its green-sensitive silver halide dye-sensitizing emulsion layers and a cyanogen colorant emulsion sensitizing layer contain, which has an absorption maximum in the range of 515 - 550 nm, preferably in the range of 517 - 540 nm in methanolic solution, the absorption maximum of the additional cyanine dye in the red-sensitive silver halide emulsion layer and the absorption maximum of the additional cyanine dye in the green-sensitive layer, each measured in methanolic solution to not more than 10 nm and are particularly preferably not more than 5 nm apart.

Bevorzugt handelt es sich bei den erwähnten zusätzlichen Cyaninfarbstoffen um Carbocyanine, die an mindestens einem der (beiden) Ringstickstoffatome einen mit einer Säuregruppe substituierten Alkylrest tragen. Besonders geeignete Beispiele dieser Cyaninfarbstoffe gehören der Stoffklasse der Benzimidazolcarbocyanine oder der Stoffklasse der Oxathiacarbocyanine an.The additional cyanine dyes mentioned are preferably carbocyanines which carry an alkyl radical substituted by an acid group on at least one of the (two) ring nitrogen atoms. Particularly suitable examples of these cyanine dyes belong to the class of benzimidazole carbocyanines or the class of oxathiacarbocyanines.

In einer bevorzugten Ausführungsform der Erfindung ist der zusätzliche Cyaninfarbstoff in der rotempfindlichen Silberhalogenidemulsionsschicht identisch mit dem zusätzlichen Cyaninfarbstoff in der grünempfindlichen Silberhalogenidemulsionsschicht. Als "identisch" werden hierbei Cyaninfarbstoffe angesehen, die hinsichtlich der Struktur des Farbstoffchromophors übereinstimmen, auch wenn die gegebenenfalls zum Ladungsausgleich vorhandenen Gegenionen nicht übereinstimmen.In a preferred embodiment of the invention, the additional cyanine dye in the red-sensitive silver halide emulsion layer is identical to the additional cyanine dye in the green-sensitive silver halide emulsion layer. Cyanine dyes which match the structure of the dye chromophore are regarded as "identical", even if the counterions which may be present to balance the charge do not match.

Beispielhaft sind nachfolgend einige erfindungsgemäß geeignete "zusätzliche" Cyaninfarbstoffe mit den entsprechenden in methanolischen Lösungen gemessenen Absorptionsmaxima λmax angegeben.

Figure imgb0001
Figure imgb0002
 Some "additional" cyanine dyes suitable according to the invention are given below by way of example with the corresponding absorption maxima λ max measured in methanolic solutions.
Figure imgb0001
Figure imgb0002

Beispiele für farbfotografische Materialien sind Farbnegativfilme, Farbumkehrfilme, Farbpositivfilme, farbfotografisches Papier, farbumkehrfotografisches Papier, farbempfindliche Materialien für das Farbdiffusionstransfer-Verfahren oder das Silberfarbbleich-Verfahren.Examples of color photographic materials are color negative films, color reversal films, color positive films, color photographic paper, color reversal photographic paper, color sensitive materials for the color diffusion transfer process or the silver color bleaching process.

Die fotografischen Materialien bestehen aus einem Träger, auf den wenigstens eine lichtempfindliche Silberhalogenidemulsionsschicht aufgebracht ist. Als Träger eignen sich insbesondere dünne Filme und Folien. Eine Übersicht über Trägermaterialien und auf deren Vorder- und Rückseite aufgetragene Hilfsschichten ist in Research Disclosure 37254, Teil 1 (1995), S. 285 dargestellt.The photographic materials consist of a support on which at least one light-sensitive silver halide emulsion layer is applied. Thin films and foils are particularly suitable as supports. An overview of carrier materials and auxiliary layers applied to their front and back is shown in Research Disclosure 37254, Part 1 (1995), p. 285.

Die farbfotografischen Materialien enthalten üblicherweise mindestens je eine rotempfindliche, grünempfindliche und blauempfindliche Silberhalogenidemulsionsschicht sowie gegebenenfalls Zwischenschichten und Schutzschichten.The color photographic materials usually contain at least one red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layer and, if appropriate, intermediate layers and protective layers.

Je nach Art des fotografischen Materials können diese Schichten unterschiedlich angeordnet sein. Dies sei für die wichtigsten Produkte dargestellt:Depending on the type of photographic material, these layers can be arranged differently. This is shown for the most important products:

Farbfotografische Filme wie Colornegativfilme und Colorumkehrfilme weisen in der nachfolgend angegebenen Reihenfolge auf dem Täger 2 oder 3 rotempfindliche, blaugrünkuppelnde Silberhalogenidemulsionsschichten, 2 oder 3 grünempfindliche, purpurkuppelnde Silberhalogenidemulsionsschichten und 2 oder 3 blauempfindliche, gelbkuppelnde Silberhalogenidemulsionsschichten auf. Die Schichten gleicher spektraler Empfindlichkeit unterscheiden sich in ihrer fotografischen Empfindlichkeit, wobei die weniger empfindlichen Teilschichten in der Regel näher zum Träger angeordnet sind als die höher empfindlichen Teilschichten.Color photographic films such as color negative films and color reversal films have 2 or 3 red-sensitive, cyan-coupling 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 carrier in the order given below. The layers of the same spectral sensitivity differ in their photographic sensitivity, the less sensitive sub-layers generally being arranged closer to the support than the more sensitive sub-layers.

Zwischen den grünempfindlichen und blauempfindlichen Schichten ist üblicherweise eine Gelbfilterschicht angebracht, die blaues Licht daran hindert, in die darunter liegenden Schichten zu gelangen.A yellow filter layer is usually applied between the green-sensitive and blue-sensitive layers, which prevents blue light from reaching the layers below.

Farbfotografisches Papier, das in der Regel wesentlich weniger lichtempfindlich ist als ein farbfotografischer Film, weist in der nachfolgend angegebenen Reihenfolge auf dem Träger üblicherweise je eine blauempfindliche, gelbkuppelnde Silberhalogenidemulsionsschicht, eine grünempfindliche, purpurkuppelnde Silberhalogenidemulsionsschicht und eine rotempfindliche, blaugrünkuppelnde Silberhalogenidemulsionsschicht auf; die Gelbfilterschicht kann entfallen.Color photographic paper, which is generally much less sensitive to light than a color photographic film, usually has a blue-sensitive, yellow-coupling silver halide emulsion layer, a green-sensitive, purple-coupling silver halide emulsion layer and a red-sensitive, cyan-coupling silver halide emulsion layer on the support in the order given below; the yellow filter layer can be omitted.

Abweichungen von Zahl und Anordnung der lichtempfindlichen Schichten können zur Erzielung bestimmter Ergebnisse vorgenommen werden. Zum Beispiel können alle hochempfindlichen Schichten zu einem Schichtpaket und alle niedrigempfindlichen Schichten zu einem anderen Schichtpaket in einem fotografischen Film zusammengefaßt sein, um die Empfindlichkeit zu steigern (DE 25 30 645).Deviations in the number and arrangement of the photosensitive layers can be carried out in order to achieve certain results. For example, all highly sensitive layers can be combined in one layer package and all low-sensitivity layers can be combined in another layer package in a photographic film in order to increase the sensitivity (DE 25 30 645).

Die Möglichkeiten der unterschiedlichen Schichtanordnungen und ihre Auswirkungen auf die fotografischen Eigenschaften werden in J. Int. Rec. Mats., 1994, Vol. 22, Seiten 183 - 193 beschrieben.The possibilities of the different layer arrangements and their effects on the photographic properties are described in J. Int. Rec. Mats., 1994, Vol. 22, pages 183-193.

Wesentliche Bestandteile der fotografischen Emulsionsschichten sind Bindemittel, Silberhalogenidkörnchen und Farbkuppler.Binding agents, silver halide grains and color couplers are essential components of the photographic emulsion layers.

Angaben über geeignete Bindemittel Finden sich in Research Disclosure 37254, Teil 2 (1995), S. 286.Information on suitable binders can be found in Research Disclosure 37254, Part 2 (1995), p. 286.

Angaben über geeignete Silberhalogenidemulsionen, ihre Herstellung, Reifung, Stabilisierung und spektrale Sensibilisierung einschließlich geeigneter Spektralsensibilisatoren finden sich in Research Disclosure 37254, Teil 3 (1995), S. 286 und in Research Disclosure 37038, Teil XV (1995), S. 89.Information on suitable silver halide emulsions, their preparation, ripening, stabilization and spectral sensitization, including suitable spectral sensitizers can be found in Research Disclosure 37254, Part 3 (1995), p. 286 and in Research Disclosure 37038, Part XV (1995), p. 89.

Fotografische Materialien mit Kameraempfindlichkeit enthalten üblicherweise Silberbromidiodidemulsionen, die gegebenenfalls auch geringe Anteile Silberchlorid enthalten können. Fotografische Kopiermaterialien enthalten entweder Silberchloridbromidemulsionen mit bis 80 mol-% AgBr oder Silberchloridbromidemulsionen mit über 95 mol-% AgCl.Photographic materials with camera sensitivity usually contain silver bromoiodide emulsions, which may also contain small amounts of silver chloride. 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.

Angaben zu den Farbkupplern finden sich in Research Disclosure 37254, Teil 4 (1995), S. 288 und in Research Disclosure 37038, Teil II (1995), S. 80. Die maximale Absorption der aus den Kupplern und dem Farbentwickleroxidationsprodukt gebildeten Farbstoffe liegt vorzugsweise in den folgenden Bereichen: Gelbkuppler 430 bis 460 nm, Purpurkuppler 540 bis 560 nm, Blaugrünkuppler 630 bis 700 nm.Information on the color couplers can be found in Research Disclosure 37254, Part 4 (1995), p. 288 and in Research Disclosure 37038, Part II (1995), p. 80. The maximum absorption of the dyes formed from the couplers and the color developer oxidation product is preferably in the following ranges: yellow couplers 430 to 460 nm, purple couplers 540 to 560 nm, cyan couplers 630 to 700 nm.

In Farbfotografischen Filmen werden zur Verbesserung von Empfindlichkeit, Körnigkeit, Schärfe und Farbtrennung häufig Verbindungen eingesetzt, die bei der Reaktion mit dem Entwickleroxidationsprodukt Verbindungen freisetzen, die fotografisch wirksam sind, z.B. DIR-Kuppler, die einen Entwicklungsinhibitor abspalten.In color photographic films to improve sensitivity, graininess, sharpness and color separation, compounds are frequently used which, when reacted with the developer oxidation product, release compounds which are photographically active, e.g. DIR couplers that release a development inhibitor.

Angaben zu solchen Verbindungen, insbesondere Kupplern, finden sich in Research Disclosure 37254, Teil 5 (1995), S. 290 und in Research Disclosure 37038, Teil XIV (1995), S. 86.Information on such compounds, in particular couplers, can be found in Research Disclosure 37254, Part 5 (1995), p. 290 and in Research Disclosure 37038, Part XIV (1995), p. 86.

Die meist hydrophoben Farbkuppler, aber auch andere hydrophobe Bestandteile der Schichten, werden üblicherweise in hochsiedenden organischen Lösungsmitteln gelöst oder dispergiert. Diese Lösungen oder Dispersionen werden dann in einer wäßrigen Bindemittellösung (üblicherweise Gelatinelösung) emulgiert und liegen nach dem Trocknen der Schichten als feine Tröpfchen (0,05 bis 0,8 µm Durchmesser) in den Schichten vor.The mostly hydrophobic color couplers, but also other hydrophobic components of the layers, are usually dissolved or dispersed in high-boiling organic solvents. These solutions or dispersions are then emulsified in an aqueous binder solution (usually gelatin solution) and lie after drying the layers as fine droplets (0.05 to 0.8 µm diameter) in the layers before.

Geeignete hochsiedende organische Lösungsmittel, Methoden zur Einbringung in die Schichten eines fotografischen Materials und weitere Methoden, chemische Verbindungen in fotografische Schichten einzubringen, finden sich in Research Disclosure 37254, Teil 6 (1995), S. 292.Suitable high-boiling organic solvents, methods for incorporation into the layers of a photographic material and other methods for introducing chemical compounds into photographic layers can be found in Research Disclosure 37254, Part 6 (1995), p. 292.

Die in der Regel zwischen Schichten unterschiedlicher Spektralempfindlichkeit angeordneten nicht lichtempfindlichen Zwischenschichten können Mittel enthalten, die eine unerwünschte Diffusion von Entwickleroxidationsprodukten aus einer lichtempfindlichen in eine andere lichtempfindliche Schicht mit unterschiedlicher spektraler Sensibilisierung verhindern.The non-light-sensitive intermediate layers, which are generally arranged between layers of different spectral sensitivity, can contain agents which prevent undesired diffusion of developer oxidation products from one light-sensitive layer into another light-sensitive layer with different spectral sensitization.

Geeignete Verbindungen (Weißkuppler, Scavenger oder EOP-Fänger) finden sich in Research Disclosure 37254, Teil 7 (1995), S. 292 und in Research Disclosure 37038, Teil III (1995), S. 84.Suitable compounds (white couplers, scavengers or EOP scavengers) can be found in Research Disclosure 37254, Part 7 (1995), p. 292 and in Research Disclosure 37038, Part III (1995), p. 84.

Das fotografische Material kann weiterhin UV-Licht absorbierende Verbindungen, Weißtöner, Abstandshalter, Filterfarbstoffe, Formalinfänger, Lichtschutzmittel, Antioxidantien, DMin-Farbstoffe, Zusätze zur Verbesserung der Farbstoff-, Kuppler- und Weißenstabilität sowie zur Verringerung des Farbschleiers, Weichmacher (Latices), Biocide und anderes enthalten.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.

Geeignete Verbindungen Finden sich in Research Disclosure 37254, Teil 8 (1995), S. 292 und in Research Disclosure 37038, Teile IV, V, VI, VII, X, XI und XIII (1995), S. 84 ff.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.

Die Schichten farbfotografischer Materialien werden üblicherweise gehärtet, d.h., das verwendete Bindemittel, vorzugsweise Gelatine, wird durch geeignete chemische Verfahren vernetzt.The layers of color photographic materials are usually hardened, i.e. the binder used, preferably gelatin, is crosslinked by suitable chemical processes.

Geeignete Härtersubstanzen finden sich in Research Disclosure 37254, Teil 9 (1995), S. 294 und in Research Disclosure 37038, Teil XII (1995), Seite 86.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.

Nach bildmäßiger Belichtung werden farbfotografische Materialien ihrem Charakter entsprechend nach unterschiedlichen Verfahren verarbeitet. Einzelheiten zu den Verfahrensweisen und dafür benötigte Chemikalien sind in Research Disclosure 37254, Teil 10 (1995), S. 294 sowie in Research Disclosure 37038, Teile XVI bis XXIII (1995), S. 95 ff. zusammen mit exemplarischen Materialien veröffentlicht.After image-wise exposure, color photographic materials are processed according to their character according to different processes. Details of the procedures and the chemicals required for them are published in Research Disclosure 37254, Part 10 (1995), p. 294 and in Research Disclosure 37038, Parts XVI to XXIII (1995), p. 95 ff. Together with exemplary materials.

Beispiel 1example 1

Ein farbfotografisches Aufzeichnungsmaterial für die Colornegativfarbentwicklung wurde hergestellt (Schichtaufbau 1A - Vergleich), indem auf einen transparenten Schichtträger aus Cellulosetriacetat die folgenden Schichten in der angegebenen Reihenfolge aufgetragen wurden. Die Mengenangaben beziehen sich jeweils auf 1 m2. Für den Silberhalogenidauftrag werden die entsprechenden Mengen AgNO3 angegeben. Alle Silberhalogenidemulsionen waren pro 100 g AgNO3 mit 0,1 g 4-Hydroxy-6-methyl-1,3,3a,7-tetraazainden stabilisiert.A color photographic recording material for color negative color development was produced (layer structure 1A - 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 per 100 g of AgNO 3 were stabilized with 0.1 g of 4-hydroxy-6-methyl-1,3,3a, 7-tetraazaindene.

Schichtaufbau 1ALayer structure 1A

Schicht 1:Layer 1:
(Antihaloschicht)
schwarzes kolloidales Silbersol mit
  • 0,3 g Ag
  • 1,2 g Gelatine
  • 0,4 g UV-Absorber XUV-1
  • 0,02 g Trikresylphosphat (TKP)
(Antihalation layer)
black colloidal silver sol with
  • 0.3 g Ag
  • 1.2 g gelatin
  • 0.4 g UV absorber XUV-1
  • 0.02 g tricresyl phosphate (CPM)
Schicht 2:Layer 2:
(Zwischenschicht)
  • 1,0 g Gelatine
(Intermediate layer)
  • 1.0 g gelatin
Schicht 3:Layer 3:
(1. rotsensibilisierte Schicht, gering empfindlich)
rotsensibilisierte Silberbromidiodidemulsion (4 mol-% Iodid; mittlerer Korndurchmesser 0,5 µm; spektral sensibilisiert mit den Sensibilisierungsfarbstoffen XRS-1, XRS-2 und XRS-3 im Verhältnis 1: 3: 0,5) aus 2,7 g AgNO3, mit
  • 2,0 g Gelatine
  • 0,88 g Cyankuppler XC-1
  • 0,05 g farbiger Kuppler XCR-1
  • 0,07 g farbiger Kuppler XCY-1
  • 0,02 g DIR-Kuppler XDIR-1
  • 0,75 g TKP
(1st red-sensitized layer, slightly sensitive)
red-sensitized silver bromide iodide emulsion (4 mol% iodide; average grain diameter 0.5 µm; spectrally sensitized with the sensitizing dyes XRS-1, XRS-2 and XRS-3 in a ratio of 1: 3: 0.5) from 2.7 g AgNO 3 , With
  • 2.0 g gelatin
  • 0.88 g cyan coupler XC-1
  • 0.05 g colored coupler XCR-1
  • 0.07 g colored coupler XCY-1
  • 0.02 g DIR coupler XDIR-1
  • 0.75 g CPM
Schicht 4:Layer 4:
(2. rotsensibilisierte Schicht, hochempfindlich)
rotsensibilisierte Silberbromidiodidemulsion (12 mol-% Iodid; mittlerer Korndurchmesser 1,0 µm; spektral sensibilisiert mit den Sensibilisierungsfarbstoffen XRS-1, XRS-2 und XRS-3 im Verhältnis 1: 3,1: 0,3) aus 2,2 g AgNO3 , mit
  • 1,8 g Gelatine
  • 0,19 g Cyankuppler XC-2
  • 0,17 g TKP
(2nd red-sensitized layer, highly sensitive)
Red-sensitized silver bromide iodide emulsion (12 mol% iodide; average grain diameter 1.0 µm; spectrally sensitized with the sensitizing dyes XRS-1, XRS-2 and XRS-3 in a ratio of 1: 3.1: 0.3) from 2.2 g AgNO 3 , with
  • 1.8 g gelatin
  • 0.19 g cyan coupler XC-2
  • 0.17 g CPM
Schicht 5:Layer 5:
(Zwischenschicht)
  • 0,4 g Gelatine
  • 0,15 g Weißkuppler XW-1
  • 0,06 g Aluminiumsalz der Aurintricarbonsäure
(Intermediate layer)
  • 0.4 g gelatin
  • 0.15 g white coupler XW-1
  • 0.06 g of aluminum salt of aurintricarboxylic acid
Schicht 6:Layer 6:
(1. grünsensibilisierte Schicht, gering empfindlich)
grünsensibilisierte Silberbromidiodidemulsion (4 mol-% Iodid; mittlerer Korndurchmesser 0,35 µm; spektral sensibilisiert mit den Sensibilisierungsfarbstoffen XGS-1, XGS-2 und XGS-3 im Verhältnis 2,8: 1: 0,2) aus 1,9 g AgNO3 , mit
  • 1,8 g Gelatine
  • 0,54 g Magentakuppler XM-1
  • 0,065 g farbiger Kuppler XMY-1
  • 0,24 g DIR-Kuppler XDIR-1
  • 0,6 g TKP
(1st green-sensitized layer, slightly sensitive)
Green-sensitized silver bromide iodide emulsion (4 mol% iodide; average grain diameter 0.35 µm; spectrally sensitized with the sensitizing dyes XGS-1, XGS-2 and XGS-3 in a ratio of 2.8: 1: 0.2) from 1.9 g AgNO 3 , with
  • 1.8 g gelatin
  • 0.54 g XM-1 magenta coupler
  • 0.065 g colored coupler XMY-1
  • 0.24 g DIR coupler XDIR-1
  • 0.6 g CPM
Schicht 7:Layer 7:
(2. grünempfindliche Schicht, hochempfindlich)
grünsensibilisierte Silberbromidiodidemulsion (9 mol-% Iodid; mittlerer Korndurchmesser 0,8 µm; spektral sensibilisiert mit den Sensibilisierungsfarbstoffen XGS-1, XGS-2 und XGS-3 im Verhältnis 2,8: 0,9: 0,25) aus 1,25 g AgNO3 , mit
  • 1,1 g Gelatine
  • 0,195 g Magentakuppler XM-2
  • 0,05 g farbiger Kuppler XMY-2
  • 0,245 g TKP
(2nd green sensitive layer, highly sensitive)
Green-sensitized silver bromide iodide emulsion (9 mol% iodide; average grain diameter 0.8 µm; spectrally sensitized with the sensitizing dyes XGS-1, XGS-2 and XGS-3 in the ratio 2.8: 0.9: 0.25) from 1.25 g AgNO 3 , with
  • 1.1 g gelatin
  • 0.195 g magenta coupler XM-2
  • 0.05 g colored coupler XMY-2
  • 0.245 g CPM
Schicht 8:Layer 8:
(Gelbfilterschicht)
gelbes kolloidales Silbersol mit
  • 0,09 g Ag
  • 0,25 g Gelatine
  • 0,08 g Scavenger XSC-1
  • 0,40 g Formaldehydfänger XFF-1
  • 0,08 g TKP
(Yellow filter layer)
yellow colloidal silver sol with
  • 0.09 g Ag
  • 0.25 g gelatin
  • 0.08 g Scavenger XSC-1
  • 0.40 g formaldehyde scavenger XFF-1
  • 0.08 g CPM
Schicht 9:Layer 9:
(1. blauempfindliche Schicht, gering empfindlich)
blausensibilisierte Silberbromidiodidemulsion (6 mol-% Iodid; mittlerer Korndurchmesser 0,6 µm; spektral sensibilisiert mit dem Sensibilisierungsfarbstoff XBS-1) aus 0,6 g AgNO3 , mit
  • 2,2 g Gelatine
  • 1,1 g Gelbkuppler XY-1
  • 0,037 g DIR-Kuppler XDIR-1
  • 1,14 g TKP
(1st blue-sensitive layer, slightly sensitive)
Blue-sensitized silver bromide iodide emulsion (6 mol% iodide; average grain diameter 0.6 µm; spectrally sensitized with the sensitizing dye XBS-1) from 0.6 g AgNO 3 , with
  • 2.2 g gelatin
  • 1.1 g yellow coupler XY-1
  • 0.037 g DIR coupler XDIR-1
  • 1.14 g CPM
Schicht 10:Layer 10:
(2. blauempfindliche Schicht, hochempfindlich)
blausensibilisierte Silberbromidiodidemulsion (10 mol-% Iodid; mittlerer Korndurchmesser 1,2 µm; spektral sensibilisiert mit dem Sensibilisierungsfarbstoff XBS-1) aus 0,6 g AgNO3 , mit
  • 0,6 g Gelatine
  • 0,2 g Gelbkuppler XY-1
  • 0,003 g DIR-Kuppler XDIR-1
  • 0,22 g TKP
(2nd blue sensitive layer, highly sensitive)
Blue-sensitized silver bromide iodide emulsion (10 mol% iodide; average grain diameter 1.2 µm; spectrally sensitized with the sensitizing dye XBS-1) from 0.6 g AgNO 3 , with
  • 0.6 g gelatin
  • 0.2 g yellow coupler XY-1
  • 0.003 g DIR coupler XDIR-1
  • 0.22 g CPM
Schicht 11:Layer 11:
(Mikratschicht)
Mikrat-Silberbromidiodidemulsion (0,5 mol-% Iodid; mittlerer Korndurchmesser 0,06 µm) aus 0,06 g AgNO3 , mit
  • 1,0 g Gelatine
  • 0,3 g UV-Absorber XUV-2
  • 0,3 g TKP
(Micrate layer)
Mikrat-silver bromide iodide emulsion (0.5 mol% iodide; average grain diameter 0.06 µm) from 0.06 g AgNO 3 , with
  • 1.0 g gelatin
  • 0.3 g XUV-2 UV absorber
  • 0.3 g CPM
Schicht 12:Layer 12:
(Schutz- und Härtungsschicht)
  • 0,25 g Gelatine
  • 0,75 g Härtungsmittel XH-1,
   so daß der Gesamtschichtaufbau nach der Härtung einen Quellfaktor 3,5 hatte.(Protective and hardening layer)
  • 0.25 g gelatin
  • 0.75 g hardener XH-1,
so that the total layer structure had a swelling factor of 3.5 after curing.

In Schichtaufbau 1A verwendete Verbindungen:

Figure imgb0003
Figure imgb0004
Figure imgb0005
Figure imgb0006
Figure imgb0007
 Compounds used in layer structure 1A:
Figure imgb0003
Figure imgb0004
Figure imgb0005
Figure imgb0006
Figure imgb0007

In Beispiel 1 verwendete Sensibilisierungsfarbstoffe:

Figure imgb0008
Figure imgb0009
Figure imgb0010
 Sensitizing dyes used in Example 1:
Figure imgb0008
Figure imgb0009
Figure imgb0010

In den erfindungsgemäßen Schichtaufbauten 1B, 1C, 1D, 1E und 1F wurde die spektrale Sensibilisierung in der nachstehend aufgeführten Weise verändert:In the layer structures 1B, 1C, 1D, 1E and 1F according to the invention, the spectral sensitization was changed in the manner listed below:

Schichtaufbau 1BLayer structure 1B

Schichtlayer Verwendete FarbstoffeDyes used MischungsverhältnisMixing ratio 33rd F-1, XRS-2, XRS-3F-1, XRS-2, XRS-3 1:2:0,31: 2: 0.3 44th F-1, XRS-2, XRS-3F-1, XRS-2, XRS-3 1:1,9:0,41: 1.9: 0.4 66 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:1:0,22.8: 1: 0.2 77 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:0,9:0,252.8: 0.9: 0.25

Schichtaufbau 1CLayer structure 1C

Schichtlayer Verwendete FarbstoffeDyes used MischungsverhältnisMixing ratio 33rd F-1, XRS-4, XRS-5F-1, XRS-4, XRS-5 1:2:0,351: 2: 0.35 44th F-1, XRS-4, XRS-5F-1, XRS-4, XRS-5 1:2,1:0,31: 2.1: 0.3 66 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:1:0,22.8: 1: 0.2 77 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:0,9:0,252.8: 0.9: 0.25

Schichtaufbau 1DLayer structure 1D

Schichtlayer Verwendete FarbstoffeDyes used MischungsverhältnisMixing ratio 33rd F-2, XRS-4, XRS-5F-2, XRS-4, XRS-5 1:2,1:0,251: 2.1: 0.25 44th F-2, XRS-4, XRS-5F-2, XRS-4, XRS-5 1:2:0,31: 2: 0.3 66 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:1:0,252.8: 1: 0.25 77 XGS-1, XGS-2, XGS-3 (= F-1)XGS-1, XGS-2, XGS-3 (= F-1) 2,8:1,1:0,22.8: 1.1: 0.2

Schichtaufbau 1ELayer structure 1E

Schichtlayer Verwendete FarbstoffeDyes used MischungsverhältnisMixing ratio 33rd F-3, XRS-4, XRS-5F-3, XRS-4, XRS-5 1:2:0,351: 2: 0.35 44th F-3, XRS-4, XRS-5F-3, XRS-4, XRS-5 1:2,2:0,251: 2.2: 0.25 66 XGS-1, XGS-2, F-2XGS-1, XGS-2, F-2 2,8:1,1:0,32.8: 1.1: 0.3 77 XGS-1, XGS-2, F-2XGS-1, XGS-2, F-2 2,7:1:0,32.7: 1: 0.3

Schichtaufbau 1FLayer structure 1F

Schichtlayer Verwendete FarbstoffeDyes used MischungsverhältnisMixing ratio 33rd F-2, XRS-2, XRS-3F-2, XRS-2, XRS-3 1:2:0,31: 2: 0.3 44th F-2, XRS-2, XRS-3F-2, XRS-2, XRS-3 1:1,9:0,41: 1.9: 0.4 66 XGS-1, XGS-2, F-3XGS-1, XGS-2, F-3 2,8:1:0,32.8: 1: 0.3 77 XGS-1, XGS-2, F-3XGS-1, XGS-2, F-3 2,7:1,1:0,252.7: 1.1: 0.25

Nach dem Aufbelichten eines Graukeils wurden die Schichtaufbauten 1A bis 1F nach einem Color-Negativ-Verfahren verarbeitet, das im "The British Journal of Photography" 1984, Seiten 597 und 598 beschrieben ist.After exposing a gray wedge, the layer structures 1A to 1F were processed using a color negative process, which is described in "The British Journal of Photography" 1984, pages 597 and 598.

Die Empfindlichkeiten Epurpur und Eblaugrün der erfindungsgemäßen Schichtaufbauten 1B bis 1F sind in Tabelle 1 denen des Vergleichsschichtaufbaus 1A gegenübergestellt. In Tabelle 2 sind die Resultate der Cielab-Messungen, die zur Charakterisierung der Farbtonverschiebung genutzt wurden, zusammengefaßt. Es werden nur die Farben erwähnt, die besonders stark verändert werden.The sensitivities E purple and E blue-green of the layer structures 1B to 1F according to the invention are compared in Table 1 to those of the comparison layer structure 1A. Table 2 summarizes the results of the Cielab measurements, which were used to characterize the color shift. Only the colors that are changed particularly strongly are mentioned.

Cielab-Messungen werden seit längerer Zeit zur farbmetrischen Beschreibung von CN-Filmen benutzt. Die Methode ist ausführlich z.B. in R.W.G, Hunt "The Reproduction of Color", Fountain Press (1988) beschrieben. Neben der Farbsättigung ist besonders die Farbtonverschiebung, verglichen mit jeweiligen Standardfarbtafeln, ein wichtiges Merkmal bei der Charakterisierung von CN-Filmen. Eine niedrige Zahl in Tabelle 2 bedeutet, daß die Abweichung vom Original gering ist und der Film also besonders günstig beurteilt werden kann. Tabelle 1 Schichtaufbau Epurpur Eblaugrün 1A 100 100 1B 105 130 1C 105 135 1D 110 125 1E 105 135 1F 115 140 Tabelle 2 Farbtonverschiebungen [rel. Cielab-Einheiten] Schichtaufbau Blue Flower purple modern red Purpur gelbgrün 1A 12 14 9 12 9 1B 2 3 6 6 4 1C 3 5 5 4 5 1D 3 2 3 4 5 1E 0 1 2 3 4 1F 2 3 4 5 4 Cielab measurements have long been used for the colorimetric description of CN films. The method is described in detail, for example, in RWG, Hunt "The Reproduction of Color ", Fountain Press (1988). In addition to the color saturation, the color shift is an important feature in the characterization of CN films compared to the respective standard color tables. A low number in Table 2 means that the deviation from the original is small is and the film can be assessed particularly cheap. Table 1 Layer structure E purple E teal 1A 100 100 1B 105 130 1C 105 135 1D 110 125 1E 105 135 1F 115 140 Hue shifts [rel. Cielab units] Layer structure Blue flower purple modern red purple yellow-green 1A 12th 14 9 12th 9 1B 2nd 3rd 6 6 4th 1C 3rd 5 5 4th 5 1D 3rd 2nd 3rd 4th 5 1E 0 1 2nd 3rd 4th 1F 2nd 3rd 4th 5 4th

Claims (3)

Farbfotografisches Aufzeichnungsmaterial mit einem Schichtträger und darauf angeordnet mindestens einer rotempfindlichen Silberhalogenidemulsionsschicht mit einem Cyankuppler, mindestens einer grünempfindlichen Silberhalogenidemulsionsschicht mit einem Magentakuppler, mindestens einer blauempfindlichen Silberhalogenidemulsionsschicht mit einem Gelbkuppler und gegebenenfalls weiteren nicht lichtempfindlichen Schichten, dadurch gekennzeichnet, daß mindestens eine seiner rotempfindlichen Silberhalogenidemulsionsschichten und mindestens eine seiner grünempfindlichen Silberhalogenidemulsionsschichten neben den üblichen Sensibilisierungsfarbstoffen mindestens je einen Cyaninfarbstoff enthalten, der in methanolischer Lösung ein Absorptionsmaximum im Bereich von 515 - 550 nm hat, wobei das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der rotempfindlichen Silberhalogenidemulsionsschicht und das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der grünempfindlichen Silberhalogenidemulsionsschicht, jeweils gemessen in methanolischer Lösung, um nicht mehr als 10 nm auseinander liegen.Color photographic recording material with a layer support and arranged thereon at least one red-sensitive silver halide emulsion layer with a cyan coupler, at least one green-sensitive silver halide emulsion layer with a magenta coupler, at least one blue-sensitive silver halide emulsion layer with a yellow coupler and optionally further non-light-sensitive layers, characterized in that at least one of its at least one red-sensitive silver halide and one halide emulsion its green-sensitive silver halide emulsion layers contain, in addition to the usual sensitizing dyes, at least one cyanine dye each, which in methanolic solution has an absorption maximum in the range from 515 - 550 nm, the absorption maximum of the additional cyanine dye in the red-sensitive silver halide emulsion layer and the absorption maximum of the additional cyanine dye Silver halide emulsion layer, measured in methanolic solution, no more than 10 nm apart. Aufzeichnungsmaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der rotempfindlichen Silberhalogenidemulsionsschicht und das Absorptionsmaximum des zusätzlichen Cyaninfarbstoffes in der grünempfindlichen Silberhalogenidemulsionsschicht, jeweils gemessen in methanolischer Lösung, um nicht mehr als 5 nm auseinander liegen.Recording material according to claim 1, characterized in that the absorption maximum of the additional cyanine dye in the red-sensitive silver halide emulsion layer and the absorption maximum of the additional cyanine dye in the green-sensitive silver halide emulsion layer, each measured in methanolic solution, are not more than 5 nm apart. Aufzeichnungsmaterial nach Anspruch 1, dadurch gekennzeichnet, daß der zusätzliche Cyaninfarbstoff in der rotempfindlichen Silberhalogenidemulsionsschicht identisch ist mit dem zusätzlichen Cyaninfarbstoff in der grünempfindlichen Silberhalogenidemulsionsschicht.Recording material according to claim 1, characterized in that the additional cyanine dye in the red-sensitive silver halide emulsion layer is identical to the additional cyanine dye in the green-sensitive silver halide emulsion layer.
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EP0409019A2 (en) * 1989-07-20 1991-01-23 Agfa-Gevaert AG Colour photographic recording material with improved hue reproduction
EP0474193A1 (en) * 1990-09-04 1992-03-11 Konica Corporation A silver halide color photographic light-sensitive material
EP0574927A1 (en) * 1992-06-18 1993-12-22 Fuji Photo Film Co., Ltd. Silver halide color photographic light sensitive material

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Publication number Priority date Publication date Assignee Title
EP0409019A2 (en) * 1989-07-20 1991-01-23 Agfa-Gevaert AG Colour photographic recording material with improved hue reproduction
EP0474193A1 (en) * 1990-09-04 1992-03-11 Konica Corporation A silver halide color photographic light-sensitive material
EP0574927A1 (en) * 1992-06-18 1993-12-22 Fuji Photo Film Co., Ltd. Silver halide color photographic light sensitive material

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