EP1014183A2 - Colour photographic recording material - Google Patents

Abstract

In color photographic material with a base, red-, green- and blue-sensitive silver halide emulsion layer(s) containing cyan, magenta and yellow coupler(s) respectively and a yellow filter layer over the green-sensitive emulsion layer, at least one layer between the base and the nearest light-sensitive emulsion contains a compound (I), with a methylene group between 2 electronegative groups. In color photographic material with a base, red-, green- and blue-sensitive silver halide emulsion layer(s) containing cyan, magenta and yellow coupler(s) respectively and a yellow filter layer over the green-sensitive emulsion layer, at least one layer between the base and the nearest light-sensitive emulsion contains a compound (I), with a methylene group between 2 electronegative groups, of the formula. X, Y = electronegative groups and together can form a group completing a 5- or 6-membered ring.

Description

in der

X und Y

jeweils unabhängig von einander für eine elektronenziehende Gruppe stehen, und X und Y zusammen eine zur Vervollständigung eines 5- oder 6-Ringes notwendige Gruppe bilden können,

enthält.The invention relates to a color photographic recording material which contains a compound of the formula (I) in at least one layer between the base and the light-sensitive emulsion layer closest to the base.

in the

X and Y

each independently represent an electron-withdrawing group, and X and Y together can form a group necessary to complete a 5 or 6 ring,

contains.

If the spectral composition of the on a photosensitive photographic Silver halide emulsion layer of striking light can be controlled in the light-sensitive photographic material For this purpose, a colored layer is installed, which is then called the filter layer becomes. For example, in color photographic materials mostly a yellow one Filter layer between the blue sensitive layer and the one below green sensitive and red sensitive layers arranged to the blue light to keep away from the green or red sensitive layers.

There are high demands on the dyes used in photographic materials to deliver. You don't just need a suitable one for the intended use have spectral absorption, but should still be photochemically inert.

In particular, the dyes must not have any adverse effects on the quality of the exercise photographic silver halide emulsion; they can therefore e.g. not the Press sensitivity or cause fog. In addition, the Dyes in the material may be resistant to diffusion, but must be used during processing of the material completely and irreversibly discolored or washed out of the layer be so that no unwanted staining on the exposed and developed photographic material remains. Furthermore, the dyes be stable in storage and not change in the photographic material lead during storage.

These requirements are not satisfactory by the known dyes Dimensions met. The colloidal silver commonly used in yellow filter layers easily leads to fog in the neighboring emulsion layers. Water soluble organic dyes diffusion resistant by introducing long alkyl chains be made as e.g. in DE 22 59 746 are mentioned in normal photographic processing baths not or only incompletely discolored. In the Definition of dyes with a stain, e.g. GB 1 034 044, US 3 740 228 or DE-A-29 41 819, the pickling effect is generally not sufficient to remove the dye to the extent necessary in the pickling layer.

DE 196 46 402 includes condensation products of 3-alkylisoxazolones p-N, N-bis-carbalkoxymethylaminobenzaldehydes or N-carbalkoxyethylcarbazole-3-aldehydes (Arylidene dyes) are known to have suitable absorption as yellow filter dyes exhibit and are completely decolorized in the layer during development.

However, it has been shown that even with the filter yellow dyes according to DE 196 46 402, which have good decolorization, the storage stability in particular on polyester underlays with normal storage is unsatisfactory. Under normal storage List a storage under exclusion of light and atmospheric conditions at a Room temperature (i.e. in the range of 15 to 30 ° C). During storage there was a significant decrease in green sensitivity.

Inadequate latent image stability often occurs. This manifests itself through Change in the sensitometric properties of the material during storage after exposure compared to a material that develops immediately after exposure becomes. For example, changes in sensitivity, contrast, occur in the color matching and in the color rendering. As for photographic Film footage usually takes several days to weeks between the exposure of the material and its development is good latent image stability important with these materials.

The object of the present invention is a color photographic recording material, containing a decolourable yellow filter layer, with improved To provide storage stability. Especially polyester-based materials should be improved in terms of storage stability. At the same time, it should be a good one Color separation from blue-green can be achieved.

Surprisingly, it has been found that improved storage stability is also possible the yellow filter dyes known in the art, in particular those from the DE 196 46 402 known dyes can be achieved by at least one Layer between the base and the photosensitive closest to the base Layer a compound of formula (I) is added. This allowed a stable green sensitivity can be achieved with normal storage. At the same time it was also possible to improve the latent image stability.

in der

X und Y

jeweils unabhängig von einander für eine elektronenziehende Gruppe stehen, und X und Y zusammen eine zur Vervollständigung eines 5- oder 6-Ringes notwendige Gruppe bilden können,

enthält.The present application relates to a color photographic recording material which contains 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 at least one yellow-colored, non-photosensitive layer below a blue layer Silver halide emulsion layer and arranged above a green-sensitive silver halide emulsion layer (yellow filter layer), characterized in that the material contains a compound of the formula (I) in at least one layer between the base and the light-sensitive emulsion layer closest to the base.

in the

X and Y

each independently represent an electron-withdrawing group, and X and Y together can form a group necessary to complete a 5 or 6 ring,

contains.

in der

Y

für eine elektronenziehende Gruppe und

R

für Alkyl, Aryl, Alkoxy, Aryloxy, Alkylamino, Arylamino oder zusammen mit Y eine Gruppe zur Vervollständigung eines 5- oder 6-Ring(hetero)cyclus,

stehen.These are preferably open-chain or (hetero) cyclic ketomethylene compounds of the general formula (Ia) or the corresponding tautomeric formula (Ib).

in the

Y

for an electron-withdrawing group and

R

for alkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino or together with Y a group to complete a 5- or 6-ring (hetero) cycle,

stand.

The compound of formula (I) is used in an amount of 0.01 to 10 mmol / m ² , preferably 0.1 to 2 mmol / m ² . For the purposes of the present application, only one compound and also a mixture of different compounds of the formula (I) can be used.

The compounds to be used according to the invention and their synthesis are from known in literature.

Electron- withdrawing groups within the meaning of the present invention are, for example, R'CO-, R'R''NCO-, NC-, R'SO ₂ - R'OCO-, R'R''NSO ₂ in a preferred embodiment according to formula (Ia ) (in the following, the formula (Ia) should also be understood to mean the tautomeric form according to formula (Ib)) X is -RCO and Y is an electron-withdrawing group R 'and R''can independently of one another be the radicals mentioned above Represent R. Further groups preferred in the sense of the present application are described in March, Advanced Organic Chemistry, 3rd Ed., P.17 and p. 238.

In a further preferred embodiment, R and Y form according to formula Ia or Ib together a group to complete a 5 or 6 ring.

This can be either a heterocycle or a cycle without Act heteroatoms. Ring systems preferably formed are, for example Pyrazolones, isoxazolones and pyrazolidinediones.

Alkyl in the sense of the present application means linear or branched, cyclic or straight-chain, substituted or unsubstituted hydrocarbons. In particular, these are alkyl groups with 1 to 12 carbon atoms, such as, for example, methyl, ethyl, propyl, isopropyl, butyl, t-butyl, neopentyl and 2-ethylhexyl groups. However, these can be further substituted, particularly preferably with a carboxycarbonyl group.

Aryl in the sense of the present application is to be understood as meaning aromatic hydrocarbon groups, which are preferably 5- to 6-membered ring systems, which may be monocyclic but also as condensed ring systems. It can be both substituted and unsubstituted ring systems. For the purposes of the present application, aryl should also be understood to mean hetaryls. These are aromatic systems which contain at least one heteroatom. These are also preferably 5- and 6-membered ring systems, which can be monocyclic but also as condensed ring systems. It can be both substituted and unsubstituted ring systems. N, S and O are particularly suitable as heteroatoms. A ring system can preferably have between 1 and 3 heteroatoms, which can be the same or different heteroatoms. In the case of the condensed ring systems, several identical or different heterocyclic systems can be condensed, as can hetaryls with aryls.

Aryloxy in the sense of the present application is to be understood as the groups which are already defined under aryl and are bonded to the rest via an oxygen atom.

Alkoxy in the sense of the present application is understood to mean the groups already defined under alkyl which are bonded to the rest via an oxygen atom.

For the purposes of the present application, alkylamino is to be understood as the groups which are already defined under alkyl and are bonded to the remainder via an amino group.

Arylamino in the sense of the present application are to be understood as the groups already defined under aryl by an amino group attached to the rest.

Typical compounds of the formula (I) which can preferably be used according to the invention are the compounds A listed below:

In the preceding formulas A1 to A33, the radicals R ¹ , R ² , R ³ and R ⁴ each independently represent an alkyl group, an aryl group, a hetrocyclic group or an alkenyl group. The radicals R ⁵ , R ⁶ and R ⁷ also each independently represent a hydrogen atom or a substituent. Preferred substituents in the sense of the application are alkyl groups with 1 to 40 carbon atoms, such as, for example, methyl, ethyl, propyl, isopropyl, butyl, tertiary butyl, hexyl, octyl, 2-hydroxyethyl groups, furthermore alkoxy groups with 1 to 40 C atoms such as methoxy, ethoxy or butoxy, and a halogen atom, for example only chlorine, bromine or fluorine, furthermore a mono- or dialkylamine group with a total of 1 to 20 carbon atoms in the alkyl groups, where the alkyl groups can be substituted, such as dimethylamino, diethylamino , Cyanoethylamino, an ester group with 2 to 20 carbon atoms such as methoxycarbonyl, ethoxycarbonyl, phenoxycarbonyl, an amido group such as acetylamino, benzamino, a carbamyl group with 1 to 20 carbon atoms such as methylcarbamoyl, ethylcarbamoyl, a sulfamoyl group with 0 to 20 carbon atoms such as methylsulfamoyl Butylsulfamoyl, an aryl group m with 6 to 10 carbon atoms such as phenyl, naphthyl, 4-methoxyphenyl, 3-methylphenyl, an acyl group with 2 to 20 carbon atoms such as acetyl, benzoyl or propanoyl, a sulfonyl group with 1-20 carbon atoms such as methanesulfonyl or benzenesulfonyl, an ureido group with 1 to 10 carbon atoms such as ureido or methylureido, a urethane group with 2 to 10 carbon atoms such as methoxycarbonylamino or ethoxycarbonylamino, a sulfonate group such as methoxysulfonyl or phenoxysulfonyl, a cyano group, a hydroxyl group, a nitro group and a heterocyclic group such as benzoxazole, pyridine, Furan. The alkyl group represented by R ¹ , R ² , R ³ and R ⁴ can be an alkyl group having 1 to 20 carbon atoms, such as methyl, ethyl, benzyl, phenethyl, propyl, butyl, isobutyl, pentyl, hexyl, octyl or nonyl, which can optionally carry substituents, these can be the substituents already mentioned. As the aryl group, the radicals R ¹ , R ² , R ³ and R ^{4 can} preferably represent an aryl group having 6 to 10 carbon atoms, such as phenyl or naphthyl, which can also be substituted by the substituents already mentioned. A heterocyclic group represented by R ¹ , R ² , R ³ or R ⁴ can preferably be a 5- or 6-membered ring, for example an oxazole ring, benzoxazole ring, thiazole ring, imidazole ring, pyridine ring, furan ring, thiophene ring, sulforane ring, Pyrazole ring, pyrrole ring, chroman ring or coumarin ring can act, which can also be substituted with the previously mentioned substituents. As alkenyl groups, R ¹ , R ² , R ³ or R ^{4 can} preferably represent an alkenyl group having 2 to 10 carbon atoms, such as vinyl, allyl, 1-propenyl, 2-pentenyl, or 1,3-butadienyl. As already mentioned, 2 of the substituents R ¹ to R ^{7 can be} bonded to one another and thereby form a ring system. It is preferably a 5- or 6-membered ring system, such as a pyrrolidine ring, a piperidine ring, a morpholine ring or a benzene ring.

For the purposes of the present invention, particular preference is given to A-8, A-11, A-12, A-13, A-15 and A-31.

Particularly preferred compounds are:

According to the invention, the compounds of formula (I) can preferably at least in any light-insensitive layer between the base and the Contain the support closest to the photosensitive emulsion layer his. The compounds of the formula (I) can be used to form an existing one Layer can be added as well as in a separate layer in the material be introduced. When it is introduced in the form of a separate layer usually around a layer consisting of a hydrophilic colloid, preferably Gelatin. The introduction can, for example, in high-boiling organic solvents take place as a finely divided solid dispersion or as a loaded latex processes known from the prior art. The compounds are according to the invention of the formula (I) contained in at least one layer. It is located preferably directly on the surface. At least one layer means in the sense of present application that the compounds of formula (I) also in several Layers, maximum all layers between the base and the base on next located light-sensitive layer, as well as possibly in additional existing layers can be included. In another preferred In one embodiment, the compounds are added to two or three layers. The Connections are a layer that is preferably directly on the base is located below the layer structure and / or a layer that is further from the base is added as any light-sensitive layer and / or a layer added is on the back of the pad.

The photographic recording materials consist of a support on which at least one photosensitive silver halide emulsion layer is applied. Thin films and foils are particularly suitable as supports. An overview of Backing materials and auxiliary layers applied to their front and back is presented in Research Disclosure 37254, Part 1 (1995), p. 285. Various Polyester bases are in EP 0 601 501 A1 and US 5,719,015 described. Cellulose triacetate is preferred in the context of the present invention and in particular polyester used. Polyester in the sense of the present Invention are, for example, in EP 0 601 501.A1 and US 5,719,015 described, particularly preferred are polyethylene glycol 2,6-naphthalate (PEN) and Polyethylene glycol terephthalate (PET).

Examples of color photographic recording materials are color negative films and Color positive films. An overview of typical color photographic recording materials as well as preferred embodiments and processing processes can be found in Research Disclosure 37038 (February 1995).

The color photographic recording materials usually contain at least one red sensitive, one green sensitive and one blue sensitive silver halide emulsion layer and optionally intermediate layers and protective layers.

Depending on the type of photographic material, these layers can be arranged differently his. This is shown for the most important products:

Color photographic films such as color negative films indicate in the below Order on the carrier 2 or 3 red-sensitive, cyan-green domes Silver halide emulsion layers, 2 or 3 green sensitive, magenta 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, the less sensitive sub-layers are usually arranged closer to the carrier than that higher sensitive sub-layers.

The possibilities of the different layer arrangements and their effects photographic properties are described in J. Inf Rec. Mats., 1994, Vol. 22, Pages 183-193.

Deviations in the number and arrangement of the photosensitive layers can occur to achieve certain results. For example, you can all highly sensitive layers in one layer package and all low-sensitive layers Layers combined into another layer package in a photographic film be to increase the sensitivity (DE 25 30 645).

Essential components of the photographic emulsion layers are binders, Silver halide grains and color couplers.

Information on suitable binders can be found in Research Disclosure 37254, Part 2 (1995), p. 286.

Information about suitable silver halide emulsions, their preparation, maturation, stabilization and spectral sensitization including suitable spectral sensitizers can be found in Research Disclosure 36544 (Sept. 1994) and Research Disclosure 37254, Part 3 (1995), p. 286 and in Research Disclosure 37038, Part XV (1995), p. 89.

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% of AgBr or silver chloride bromide emulsions over 95 mol% AgCl.

For the purposes of the present invention, the emulsions used are in a preferred embodiment, around tab grain emulsions. Underneath are to be understood as emulsions with silver halide crystals, which have a tabular Have habit with an aspect ratio> 2, the aspect ratio being Ratio of the diameter of the circle of the same area of the projection area to the Thickness of the crystal is.

The photographic emulsions can be made using methine dyes or other dyes are spectrally sensitized. Particularly suitable dyes are cyanine dyes, merocyanine dyes, and complex merocyanine dyes. Such compounds, especially merocyanines, can also be used as Stabilizers are used.

An overview of the polymethine waste materials suitable as spectral sensitizers, about their suitable combinations and especially about supersensitizing effective combinations are contained in Research Disclosure 17643 (1978), Chapter IV, and Research Disclosure 18716 (1979), p. 648 (right column) to p. 649 (right column).

Pentamethine cyanines with naphthothiazole, naphthoxazole or benzothiazole as basic end groups can also be used as red sensitizers, which can be substituted by halogen, methyl or methoxy groups and bridged by 9,11-alkylene, in particular 9,11-neopentylene, as in GB 604 217 and BE 660 948. The N, N'-substituents can also be C ₄ -C ₈ alkyl groups as described in EP 0 532 042. The methine chain can additionally carry substituents as mentioned in EP 0 532 042. Pentamethines with only one methyl group on the cyclohexene ring can also be used, as described in EP 0 532 042. As described in BE 660 948, the red sensitizer can be supersensitized and stabilized by adding heterocyclic mercapto compounds.

The red-sensitive layer can additionally between 390 and 590 nm, preferably at 500 nm be spectrally sensitized in order to improve the differentiation of the To cause red tones according to EP 0 304 297, US 806 460 and US 5 084 374.

Such compounds, in particular merocyanines, can also be used as stabilizers be used.

The spectral sensitizers can be in dissolved form or as a disperse of the photographic Emulsion can be added. Both solution and dispersate can be additives such as wetting agents, dispersants or buffers.

The spectral sensitizer or a combination of spectral sensitizers can before, during or after the emulsion preparation.

Information on the usual 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 that from the couplers and the color developer oxidation product Dyes formed are preferably in the following areas: Yellow coupler 430 to 460 nm, purple coupler 540 to 560 nm, cyan coupler 630 up to 700 nm.

Color photographic films are used to improve sensitivity, graininess, Sharpness and color separation are often used in the compounds in the reaction with the developer oxidation product release compounds that are photographically effective are, e.g. DIR couplers that release a development inhibitor.

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.

The color photographic recording material according to the invention can also be compounds contain, for example, a development inhibitor, a development accelerator, a bleach accelerator, a developer, a silver halide solvent, set an antifoggant or antifoggant free can, for example so-called DIR hydroquinones or other compounds, as for example in US-A 4,636,546, US-A 4,345,024, US-A 4,684,604 and in DE-A 24 47 079, DE-A 25 15 213 and DE-A 31 45 640 or in EP-A 198 438 are described. These connections perform the same function as DIR, DAR or FAR couplers, except that they do not form coupling products.

High molecular weight color couplers are described, for example, in DE-C 1 297 417, DE-A 24 07 569, DE-A 31 48 125, DE-A 32 17 200, DE-A 33 20 079, DE-A 33 24 932, DE-A 33 31 743, DE-A 33 40 376, EP-A 27 284 and US-A 4 080 211. The high molecular color couplers are usually polymerized by produced ethylenically unsaturated color coupler monomers. But you can too can be obtained by polyaddition or polycondensation.

The incorporation of the color couplers in silver halide emulsion layers can be done in the Way that first of the compound in question a solution or Dispersion prepared and then added to the casting solution for the layer in question becomes. The choice of the appropriate solvent or dispersant depends on the Solubility of the compound.

Methods for introducing compounds which are essentially insoluble in water by grinding processes are, for example, in DE-A 26 09 741 and DE-A 26 09 742 described.

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) emulsified and lie after Drying the layers as fine droplets (0.05 to 0.8 µm diameter) in the Layers before.

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 compounds can also be in the form of so-called loaded latices Pouring solution are introduced. Reference is made, for example, to DE-A 25 41 230, DE-A25 41 274, DE-A 28 35 856, EP-A 0 014 921, EP-A 0 069 671, EP-A 0 130 115, US-A 4,291,113. The diffusion-resistant storage of anionic water-soluble Connections (e.g. from couplers or dyes) can also be made using cationic polymers, so-called polymeric mordants.

Suitable oil formers are e.g. Alkyl phthalates, phosphoric esters, phosphonic esters, Citric acid esters, lactic acid esters, benzoic acid esters, fatty acid esters, Amides, alcohols, phenols, sulfonamides, aniline derivatives and hydrocarbons.

Yellow filter dyes are usually between the green sensitive and blue sensitive Layers applied, they prevent blue light from reaching into the one below to reach lying layers.

According to the invention, all yellow filter dyes known from the prior art can be used. However, they are preferably compounds as disclosed in DE 196 46 402.

The usually arranged between layers of different spectral sensitivity non-photosensitive intermediate layers can contain agents which an undesirable diffusion of developer oxidation products from a photosensitive in another light-sensitive layer with different spectral Prevent awareness.

Suitable connections (white coupler, scavenger or EOP catcher) can be found in Research Disclosure 37254, Part 7 (1995), p. 292 and in Research Disclosure 37038, Part III (1995), p. 84.

The photographic recording material can also contain UV light-absorbing compounds, whiteners, spacers, other 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). , Biocide and others included.

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), p. 86.

After photographic exposure, color photographic materials become their character processed according to different processes. Details of the Procedures and chemicals required for this are in Research Disclosure 37254, part 10 (1995), p. 294 and in Research Disclosure 37038, parts XVI to XXIII (1995), p. 95 ff. Published together with exemplary materials.

Examples example 1

A color photographic recording material for color negative color development was produced (layer structure 1) 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; the silver halides were stabilized with 0.5 g of 4-hydroxy-6-methyl-1,3,3a, 7-tetraazaindene per mole of AgNO ₃ .

1st layer (antihalo layer)

0.3 g

black colloidal silver

1.2 g

gelatin

0.3 g

UV absorber UV-1

0.2 g

EOP (developer oxidation product) - catcher SC-1

0.02 g

Tricresyl phosphate (CPM)

2nd layer (low red sensitive layer)

0.7 g

AgNO _{3 of} a spectrally red-sensitized AgBrI emulsion, 4 mol% iodide, average grain diameter 0.42 µm

1 g

gelatin

0.35 g

colorless coupler C-1

0.05 g

colored coupler RC-1

0.03 g

colored coupler YC-1

0.36 g

CPM

3rd layer (medium red sensitive layer)

0.8 g

AgNO _{3 of} a spectrally red-sensitized AgBrI emulsion, 5 mol% iodide, average grain diameter 0.53 µm

0.6 g

gelatin

0.15 g

colorless coupler C-2

0.03 g

colored coupler RC-1

0.02 g

DIR coupler D-1

0.18 g

CPM

4th layer (highly red-sensitive layer)

1 g

AgNO _{3 of} a spectrally red-sensitized AgBrI emulsion, 6 mol% iodide, average grain diameter 0.85 µm

1 g

gelatin

0.1 g

colorless coupler C-2

0.005 g

DIR coupler D-2

0.11 g

CPM

5th layer (intermediate layer )

0.8 g

gelatin

0.07 g

EOP catcher SC-2

0.06 g

Aluminum salt of aurintricarboxylic acid

6th layer (low green sensitive layer)

0.7 g

AgNO _{3 of} a spectrally green-sensitized AgBrI emulsion, 4 mol% iodide, average grain diameter 0.35 µm

0.8 g

gelatin

0.22 g

colorless coupler M-1

0.065 g

colored coupler YM-1

0.02 g

DIR coupler D-3

0.2 g

CPM

7th layer (medium green sensitive layer)

0.9 g

AgNO _{3 of} a spectrally green sensitized AgBrI emulsion, 4 mol% iodide, average grain diameter 0.50 µm

1 g

gelatin

0.16 g

colorless coupler M-1

0.04 g

colored coupler YM-1

0.015 g

DIR coupler D-4

0.14 g

CPM

8th layer (highly green-sensitive layer)

0.6 g

AgNO _{3 of} a spectrally green sensitized AgBrI emulsion, 6 mol% iodide, average grain diameter 0.70 µm

1.1 g

gelatin

0.05 g

colorless coupler M-2

0.01 g

colored coupler YM-2

0.02 g

DIR coupler D-5

0.08 g

CPM

9th layer (yellow filter layer )

0.09 g

Yellow dye GF-1

1 g

gelatin

0.08 g

EOP catcher SC-2

0.26 g

CPM

10th layer (low blue-sensitive layer)

0.3 g

AgNO _{3 of} a spectrally blue-sensitized AgBrI emulsion, 6 mol% iodide, average grain diameter 0.44 µm

0.5 g

AgNO _{3 of} a spectrally blue-sensitized AgBrI emulsion, 6 mol% iodide, average grain diameter 0.50 µm

1.9 g

gelatin

1.1 g

colorless coupler Y-1

0.037 g

DIR coupler D-6

0.6 g

CPM

11th layer (highly blue-sensitive layer)

0.6 g

AgNO _{3 of} a spectrally blue-sensitized AgBrI emulsion, 7 mol% iodide, average grain diameter 0.95 µm

1.2 g

gelatin

0.1 g

colorless coupler Y-1

0.006 g

DIR coupler D-7

0.11 g

CPM

12th layer (Mikrat layer)

0.1 g

AgNO _{3 of} a Mikrat-AgBrI emulsion, 0.5 mol% iodide, average grain diameter 0.06 µm

1 g

gelatin

0.4 mg

K ₂ [PdCl ₄ ]

0.4 g

UV absorber UV-2

0.3 g

CPM

13th layer (protective and hardening layer )

0.25 g

gelatin

0.75 g

Hardener H-1

The total layer structure had a swelling factor ≤ 3.5 after curing.

Substances used in example 1:

The British Journal of Photography", 1974, Seiten 597 und 598 durchgeführt.After exposing a gray wedge, the development started

The British Journal of Photography ", 1974, pages 597 and 598.

The structures 2 to 13 differ from structure 1 as indicated in the table. The additional layer 1 a is located between the base and layer 1.

As can be seen from the table, the materials according to the invention show good ones Normal storage stability, good latent image stability, good decolorization of the Filter yellow dye (small Dmin gb) with good color separation blue-green.

Claims (9)

Color photographic recording material which contains 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 at least one yellow-colored non-light-sensitive layer below a blue-sensitive silver halide layer and a green-sensitive silver halide layer and a green-sensitive silver halide layer is arranged (yellow filter layer), characterized in that the material in at least one layer between the base and the light-sensitive emulsion layer closest to the base is a compound of the formula (I)

in the

X and Y

each independently represent an electron-withdrawing group, and X and Y together can form a group necessary to complete a 5 or 6 ring,

contains. Color photographic recording material according to claim 1, characterized in that it is a compound of formula Ia or Ib

in the

Y

for an electron-withdrawing group and

R

for alkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino or together with Y a group to complete a 5- or 6-ring (hetero) cycle,

acts. Color photographic recording material according to one of claims 1 or 2, characterized in that the compound of formula (I) are selected from the group formed by

Color photographic recording material according to one of claims 1 to 3, characterized in that it contains the compounds of formula (I) in at least contains a layer directly adjacent to the base. Color photographic recording material according to one of claims 1 to 4, characterized in that it contains compounds of formula (I) in one layer contains, which is further away from the base that any light-sensitive Layer and / or a layer that is on the back of the pad located. Color photographic recording material according to one of claims 1 to 5, characterized in that it contains the compounds of formula (I) in a additional layer on that facing away from the photosensitive layer Side of the document contains. Color photographic recording material according to one of claims 1 to 6, characterized in that the compound of formula (I) is used in an amount of 0.1 to 2 mmol / m ² . Color photographic recording material according to one of claims 1 to 7, characterized in that a polyester base is used as the base becomes. Color photographic recording material according to one of claims 1 to 8, characterized in that it is a polyethylene glycol 2,6-naphthalate or a polyethylene glycol terephthalate pad.