EP0866364B1 - 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

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Publication number
EP0866364B1
EP0866364B1 EP98103848A EP98103848A EP0866364B1 EP 0866364 B1 EP0866364 B1 EP 0866364B1 EP 98103848 A EP98103848 A EP 98103848A EP 98103848 A EP98103848 A EP 98103848A EP 0866364 B1 EP0866364 B1 EP 0866364B1
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EP
European Patent Office
Prior art keywords
sensitivity
blue
silver halide
sensitive
halide emulsion
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.)
Expired - Lifetime
Application number
EP98103848A
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German (de)
English (en)
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EP0866364A1 (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
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Agfa Gevaert NV
Agfa Gevaert AG
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Publication of EP0866364A1 publication Critical patent/EP0866364A1/fr
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Anticipated expiration legal-status Critical
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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
    • 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 Has spectral range.
  • the color-sensitive film is usually used in color negative films (CN film) Layer package so sensitized that the maximum sensitization is about 470 nm and the flank of the sensitization band towards the neighboring green Spectral range drops steeply.
  • the sensitivity curve of a typical CN film is in Fig. 1 reproduced. In this way, good color separation and high Brilliance of the CN film achieved.
  • EP-A-0 409 019 e.g. a color photographic Recording material described with improved color rendering
  • the result is achieved that, for example, both the green sensitive and the red sensitive silver halide emulsion layers by using one or an additional one of several so-called gap-sensitizing dyes Sensitization to light from the gap between two neighboring ones Main spectral ranges, in the present case between green and red (580 - 620 nm) receive.
  • the neighboring spectral sensitivity curves in the Range of the subspectral sensitivity increased so that when exposed in This area requires a maximum of 0.6 logarithmic exposure units are the same color density as in the area of the neighboring Generate main spectral sensitivity.
  • 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 other than spectral sensitization can also depend on the way in which the incident light with respect its spectral distribution modified by absorption processes within the layers e.g. by filter dyes absorbing in the spectral sensitivity range, it is conceptually more correct, instead of a sensitization band and a sensitization maximum the terms "sensitivity curve" and "sensitivity maximum" use.
  • sensitivity curve and "sensitivity maximum” use.
  • care will be taken to ensure that the sensitivity curve does not become arbitrarily wide in order to avoid excessive overlap with the adjacent sensitization band of the green-sensitive silver halide emulsion layer unit. It is therefore beneficial for the color rendering quality if the width of the sensitivity curve does not exceed the following values: b 80 : 70 nm b 50 : 145 nm b 20 : 155 nm.
  • the setting of the sensitivity curve characterized according to the invention is achieved, for example, by starting with a mixture of sensitizing dyes for the sensitization of the layers in question, 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") can be admixed with a sensitizing dye with a long-shift shifted sensitization maximum (“long blue”) and 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.
  • blue blue
  • long blue long-shift shifted sensitization maximum
  • the same measure is expediently used for all sub-layers of the blue-sensitive silver halide emulsion layer unit, even if the dyes used in the different sub-layers and / 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 used as a mixture simultaneously or individually in succession Silver halide emulsion can be added. The addition of one or more sensitizing dyes already during the com growth phase and / or during the chemical ripening is possible.
  • the following parameters apply to the partial layers of the red-sensitive silver halide emulsion layer unit: b 80 ⁇ 49 nm, and preferably b 80 ⁇ 65 nm b 50 ⁇ 71 nm, and preferably b 80 ⁇ 89 nm b 20 ⁇ 111 nm, and preferably b 80 ⁇ 130 nm and / or for the sub-layers of the green-sensitive silver halide emulsion layer unit: b 80 ⁇ 41 nm, and preferably b 80 ⁇ 58 nm b 50 ⁇ 68 nm, and preferably b 80 ⁇ 85 nm b 20 ⁇ 98 nm, and preferably b 80 ⁇ 124 nm.
  • 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 substrates 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 sequence 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 Partial 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.
  • Color coupler is in one such spatial relationship to the silver halide layer in question that an interaction between them is possible that 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 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 and 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 colomegative 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 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 the increase in sensitivity achieved) for the layer structures 2-6 described in the examples below.
  • CIELAB measurements are usually used for the colorimetric description of CN films used. The method is detailed, e.g. in R.W.G. Hunt “The Reproduction of Color ", Fountain Press (1988). The color reproduction is described with Characterized by the luminance L and the chromaticity constants a and b. With With the help of these quantities, color distances ⁇ E can be determined, the statements about a Allow change in color saturation or hue shift. According to experience 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 absorbers dyes used mixing ratio kind Amount [g] 9 - - XBS-1, XBS-2 0.8: 0.2 10 - - 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 absorbers dyes used mixing ratio kind Amount [g] 9 - - XBS-1, XBS-2 0.5: 0.5 10 - - 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 absorbers dyes used mixing ratio kind Amount [g] 9 - - XBS-1, XBS-2 0.55: 0.45 10 - - 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 according to the invention differs from the layer structure 1 as follows: layer UV absorbers dyes used mixing ratio kind Amount [g] 9 - - XBS-1, XBS-2 0.2: 0.8 10 - - 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 3 XRS-4, XRS-5, XRS-3 1: 2: 0.3 4 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 10 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 3 XGS-3, XRS-5, ES-3 1: 2: 0.35 4 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 10 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.

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  • 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)

Claims (5)

  1. Matériau d'enregistrement à haute sensibilité pour la photographie en couleurs possédant au moins une unité de couches d'émulsion aux halogénures d'argent sensible au rouge à laquelle est associé un copulant formateur de bleu-vert, au moins une unité de couches d'émulsion aux halogénures d'argent sensible au vert à laquelle est associé un copulant formateur de magenta, au moins une unité de couches d'émulsion aux halogénures d'argent sensible au bleu à laquelle est associé un copulant formateur de jaune, et, le cas échéant, des couches additionnelles non sensibles à la lumière, caractérisé en ce que ladite unité de couches d'émulsion aux halogénures d'argent sensible au bleu comporte au moins deux couches partielles sensibles au bleu qui ont été sensibilisées au moyen de colorants sensibilisateurs de façon à obtenir une courbe de sensibilité caractérisée par les paramètres suivants: 460 nm ≤ λ(Smax) ≤ 480 nm b80 ≥ 24 nm b50 ≥ 91 nm b20 ≥ 106 nm, où
    λ(Smax)
    représente la longueur d'ondes du maximum de la courbe de sensibilité (intensité de 100 %);
    b80
    représente la largeur de la courbe de sensibilité à 80 % de l'intensité maximale;
    b50
    représente la largeur de la courbe de sensibilité à 50 % de l'intensité maximale;
    b20
    représente la largeur de la courbe de sensibilité à 20 % de l'intensité maximale.
  2. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que lesdites couches partielles de l'unité de couches d'émulsion aux halogénures d'argent sensible au bleu ont été sensibilisées au moyen de colorants sensibilisateurs de façon à obtenir une courbe de sensibilité caractérisée par les paramètres suivants: b80 ≥ 40 nm b50 ≥ 107 nm b20 ≥ 124 nm.
  3. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que lesdites couches partielles de l'unité de couches d'émulsion aux halogénures d'argent sensible au bleu ont été sensibilisées au moyen de colorants sensibilisateurs de façon à obtenir une courbe de sensibilité caractérisée par les paramètres suivants: b80 ≥ 57 nm b50 ≥ 124 nm b20 ≥ 137 nm.
  4. Matériau d'enregistrement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la teneur totale en composés absorbants UV possédant un maximum d'absorption compris entre 360 et 390 nm dans les couches disposées au-dessus de ladite unité de couches d'émulsion aux halogénures d'argent sensible au bleu ne dépasse pas les 100 mg/m2.
  5. Matériau d'enregistrement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que ladite unité de couches d'émulsion aux halogénures d'argent sensible au rouge également comporte deux couches partielles sensibles au rouge qui ont été sensibilisées au moyen de colorants sensibilisateurs de façon à obtenir une bande de sensibilisation caractérisée par les paramètres suivants: 635 nm ≤ λ(Smax) ≤ 660 nm b80 ≥ 35 nm b50 ≥ 56 nm b20 ≥ 96 nm, et/ou ladite unité de couches d'émulsion aux halogénures d'argent sensible au vert également comporte deux couches partielles sensibles au vert qui ont été sensibilisées au moyen de colorants sensibilisateurs de façon à obtenir une bande de sensibilisation caractérisée par les paramètres suivants: 540 nm ≤ λ(Smax) ≤ 555 nm b80 ≥ 36 nm b50 ≥ 56 nm b20 ≥ 89 nm.
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
DE19711142 1997-03-18
DE19711142A DE19711142A1 (de) 1997-03-18 1997-03-18 Hochempfindliches farbfotografisches Aufzeichnungsmaterial mit erhöhter Empfindlichkeit im blauen Spektralbereich

Publications (2)

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

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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)

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

Families Citing this family (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
US6582894B1 (en) 1999-03-12 2003-06-24 Fuji Photo Film Co., Ltd. Silver haide photographic emulsion and photographic light-sensitive material using same
EP1061411B1 (fr) * 1999-06-17 2006-10-11 Fuji Photo Film Co., Ltd. Emulsion photographique à l'halogénure d'argent et matériau photographique sensible à la lumière l'utilisant
JP2001075223A (ja) * 1999-07-08 2001-03-23 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤および感光材料
US8617801B2 (en) 2009-06-03 2013-12-31 Carestream Health, Inc. Film with blue dye
EP2259136A1 (fr) * 2009-06-03 2010-12-08 Carestream Health, Inc. Pellicule avec colorant bleu

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL61612C (fr) * 1941-05-22
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
DE69532015T2 (de) * 1994-04-15 2004-06-24 Eastman Kodak Co. Photographisches Element, das eine Emulsion mit einer besonderen Blau-Empfindlichkeit enthält und Verfahren zur Entwicklung eines solchen Elementes

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Publication number Publication date
EP0866364A1 (fr) 1998-09-23
DE59808940D1 (de) 2003-08-14
US6040125A (en) 2000-03-21
DE19711142A1 (de) 1998-09-24
JPH10268488A (ja) 1998-10-09

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