EP0543921A1 - Materiau photographique. - Google Patents

Materiau photographique.

Info

Publication number
EP0543921A1
EP0543921A1 EP91915799A EP91915799A EP0543921A1 EP 0543921 A1 EP0543921 A1 EP 0543921A1 EP 91915799 A EP91915799 A EP 91915799A EP 91915799 A EP91915799 A EP 91915799A EP 0543921 A1 EP0543921 A1 EP 0543921A1
Authority
EP
European Patent Office
Prior art keywords
layer
group
coupler
photographic material
material according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91915799A
Other languages
German (de)
English (en)
Other versions
EP0543921B1 (fr
Inventor
John Victor Nelson
Arlyce Tolman Bowne
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0543921A1 publication Critical patent/EP0543921A1/fr
Application granted granted Critical
Publication of EP0543921B1 publication Critical patent/EP0543921B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • 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
    • G03C7/3003—Materials characterised by the use of combinations of photographic compounds known as such, or by a particular location in the photographic element

Definitions

  • This invention relates to photography and to radiation-sensitive silver halide photographic materials.
  • Color silver halide photographic materials rely on coupler compounds to form dyes that make up the image recorded in such materials.
  • a yellow dye-forming coupler will be associated with a blue-sensitive silver halide emulsion layer
  • a magenta dye-forming coupler will be associated with a green-sensitive silver halide emulsion layer
  • a cyan dye-forming coupler will be associated with a red-sensitive silver halide emulsion layer.
  • These couplers will be referred to below simply as yellow couplers, magenta couplers, and cyan couplers .
  • With color negative materials the material is exposed to light and processed with a color developer that imagewise forms a silver image and a dye image. The silver image is formed by the color developer
  • the dye image is formed by the reaction of oxidized color developer with
  • the silver image is bleached and solubilized for removal, leaving only a negative color dye image. This image is then used to expose another color negative material to form a positive color dye image.
  • the material With reversal materials, the material is generally exposed and processed with a black-andwhite developer to form a negative silver image in each layer. The remaining undeveloped silver halide thus forms a positive imagewise pattern.
  • silver halide is then fogged and processed in a color developer to form a dye image along with the silver. All the silver is then bleached and solubilized for removal, leaving only the positive color dye .image.
  • 5-Pyrazolone compounds and pyrazoloazole (e.g., pyrazolotriazole) compounds are well-known as magenta couplers. Such couplers are described in, for example, James, The Theory of the Photographic Process. MacMillan, 1977.
  • Couplers may be of the 2-equivalent or the 4-equivalent type.
  • 4-equivalent couplers a hydrogen atom is cleaved from the coupler compound at the coupling position when the compound couples with the oxidized color developer.
  • This type of coupler requires the reduction of four moles of silver halide to silver in order to form one mole of dye.
  • 2-equivalent couplers a coupling-off group, such as halogen, is cleaved from the coupler compound at the coupling position during coupling with oxidized color developer. This type of coupler requires the
  • magenta couplers can wander out of the layer in which they are coated. It has now been discovered that when such magenta couplers are used in a photographic material containing a yellow coupler having a low enough relative reactivity with oxidized developer compared to the reactivity of the magenta coupler with oxidized developer, unwanted dye can be formed as a result of reaction between magenta coupler that has wandered out of its layer and developer that has been oxidized by reaction with silver halide from the yellow coupler layer. This results in undesirable magenta contamination of the yellow record of the photographic material. Summary of the Invention
  • a photographic material comprising a support having thereon:
  • a first silver halide emulsion layer that includes a magenta coupler compound
  • a second silver halide emulsion layer that includes a yellow coupler
  • the yellow coupler layer or a layer between the first silver halide emulsion layer and the second silver halide emulsion layer comprises an oxidized developer competitor compound having a relative reaction rate, as defined herein, of at at least 1.6, the yellow coupler having a relative reactivity with oxidized color developer such that, in the absence of the oxidized developer competitor, dye is formed outside the first silver halide emulsion layer as a result of reaction between the magenta coupler and developer that has been oxidized by reaction with silver halide from the second silver halide emulsion layer.
  • the material of the invention provides photographic images while the problem of magenta dye contamination of the yellow record is substantially alleviated.
  • magenta couplers useful in the practice of the invention can be a member of any of the known classes of couplers that are well-known in the art, as described for example in the above-referenced James. These include both 5-pyrazolone couplers and pyrazoloazole couplers such as pyrazolotriazole couplers.
  • the magenta coupler should be one that is susceptible to wandering out of the layer in which it is coated. The degree of susceptibility to wandering that it should have, however, will vary with factors such as the reactivity of the magenta coupler with oxidized developer, the choice of yellow coupler and its reactivity with oxidized developer, the
  • concentration of the magenta coupler and the concentration of the yellow coupler.
  • High concentrations of the magenta coupler, low concentrations of the yellow coupler, high reactivity and/or extinction of the magenta coupler, low reactivity and/or extinction of the yellow coupler, and combinations thereof are all factors that would allow the invention to be practiced with a magenta coupler having a relatively low
  • magenta coupler used in the practice of the invention can be from any class.
  • One such class of couplers is the
  • 5-pyrazolone class which can be represented by the formula:
  • R 1 represents a carbonamido group, an arylamino (preferably anilino) group, a ureido group, a
  • R 2 represent a substituted or unsubstituted aryl group
  • X represents hydrogen, or a group capable of being released by a coupling reaction with an oxidized aromatic primary amine developing agent.
  • This group is hereinafter referred to as a coupling-off group.
  • Coupling-off groups are known in the art and may include a group containing an aliphatic group, an aromatic group, a heterocyclic group, an aliphatic, aromatic, or heterocyclic sulfonyl group, or an aliphatic, aromatic, or heterocyclic carbonyl group that is bonded to the coupling active carbon via an oxygen atom, a nitrogen atom, a sulfur atom, or a carbon atom, a halogen atom, an aromatic azo group, and the like.
  • heterocyclic group contained in such coupling-off groups may have one or more substituents, as
  • Examples of coupling-off groups include a halogen atom (e.g., fluorine, chlorine, bromine), an alkoxy group (e.g., ethoxy, dodecyloxy,
  • 4-chlorophenoxy group a 4-methoxyphenoxy group
  • an acyloxy group e.g., an acetoxy group, a
  • tetradecanoyloxy group an aliphatic or aromatic sulfonyloxy group (e.g., a methanesulfonyloxy group, a toluenesulfonyloxy group), an acylamino group
  • an aliphatic or aromatic sulfonamido group e.g., a methanesulfonamido group, a p-toluenesulfonamide group
  • an alkoxycarbonyloxy group e.g., an ethoxycarbonyloxy group, a
  • benzyloxycarbonyloxy group an aryloxycarbonyloxy group (e.g., a phenoxycarbonyloxy group), an
  • aliphatic, aromatic or heterocyclic thio group e.g., an ethylthio group, a phenylthio group
  • a aliphatic, aromatic or heterocyclic thio group e.g., an ethylthio group, a phenylthio group
  • carbamoylamino group e.g., an N-methylcarbamoylamino group, an N-phenylcarbamoylamino group
  • a 5-membered or 6-membered nitrogen-containing heterocyclic group e.g., an imidazolyl group, a pyrazolyl group
  • an imido group e.g., a succinimido group, a hydantoinyl group
  • aromatic azo group e.g., a phenylazo group
  • the aliphatic, aromatic, or heterocyclic groups included in X and the groups shown by R-, and R 2 may be substituted by a substituent such as, for example, a halogen atom (e.g., a fluorine atom, a chlorine atom, a bromine atom, etc.), an alkyl group (e.g., a methyl group, a t-octyl group, a dodecyl group, a trifluoromethyl group, etc.), an alkenyl group (e.g., an allyl group, an octadecenyl group, etc.), an aryl group (e.g., a phenyl group, a p-tolyl group, a naphthyl group, etc.), an alkoxy group
  • a halogen atom e.g., a fluorine atom, a chlorine atom, a bromine atom, etc.
  • an aryloxy group e.g., a phenoxy group, a 2,4-di-tert-amylphenoxy group, a 3-tert-butyl-4-hydroxyphenoxy group, etc.
  • an acyl group e.g., an acetyl group, a benzoyl group, etc.
  • a sulfonyl group e.g., a methanesulfonyl group, a toluenesulfonyl group, etc.
  • hexadecanesulfonamido group a p-toluenesulfonamido group, etc.
  • an acyloxy group e.g., an acetoxy group, etc.
  • a sulfonyloxy group e.g., a
  • methanesulfonyloxy group, etc. an alkoxycarbonyl group (e.g., a dodecyloxycarbonyl group, etc.), an aryloxycarbonyl group (e.g., phenoxycarbonyl group, etc.), a carbamoyl group (e.g., a dimethylcarbamcyl group, a tetradecylcarbamoyl group, etc.), a
  • sulfamoyl group e.g., a methylsulfamoyl group, a hexadecylsulfamoyl group, etc.
  • imido group e.g., a methylsulfamoyl group, a hexadecylsulfamoyl group, etc.
  • a succinimido group e.g., a succinimido group, a phthalimido group, an octadecenylsuccinimido group, etc.
  • a heterocyclic group e.g., a 2-pyridyl group, a 2-furyl group, a 2-thienyl group, etc.
  • an alkylthio group e.g., a methylthio group, etc.
  • an arylthio group e.g., a phenylthio group, etc.
  • Pyrazoloazole couplers useful in the practice of the invention include those according to the formula:
  • R 3 represents hydrogen or a substituent
  • X is as defined above for formula (I), and
  • Z represents the non-metallic atoms necessary to complete a heterocyclic ring.
  • R 1 represents hydrogen or a substituent
  • Z a , Z b , and Z c each represents a
  • substituted or unsubstituted methine group N-, or -NH-,
  • R 1 , X, and a substituted methine group represented by Z a , Z b , or Z c when any one of R 1 , X, and a substituted methine group represented by Z a , Z b , or Z c is a divalent or polyvalent group, it may form a dimer or a polymer.
  • magenta coupler used in the practice of the invention is preferably susceptible to
  • any of R 1 , R 2 , or X may also be a divalent or a more
  • magenta coupler is a polymeric coupler, low molecular weight polymer chains or polymer compositions
  • a typical amount of polymeric coupler that would be used in a photographic material will generally represent a number of polymer molecule chains having a distribution of varying molecular weights.
  • the molecular weight of the polymer is usually described as having a single molecular weight, which is
  • magenta couplers useful in the practice of the invention are presented below.
  • the yellow coupler useful in the practice of the invention can be essentially any type of yellow coupler, as is well-known in the art.
  • the reactivity of the yellow coupler with oxidized color developer must be low enough so that, in the absence of the oxidized developer
  • magenta dye would be formed as a result of reaction between magenta coupler that has wandered out of its layer and developer that has been oxidized by reaction with silver halide from the yellow coupler layer.
  • the selection of a yellow coupler that will benefit from practice of the present invention depends on a number of factors, including the specific magenta coupler involved and its reactivity with oxidized color developer, the choice of oxidized color developer, the concentrations of the yellow and magenta couplers, and other factors
  • the present invention is particularly applicable to color reversal systems, which, unlike color negative systems, do not offer the option of compensating for unwanted magenta dye stain during the printing process.
  • the present invention is particularly applicable to color reversal systems, which, unlike color negative systems, do not offer the option of compensating for unwanted magenta dye stain during the printing process.
  • photographic material is a reversal material, such as Kodak Ektachrome ® or Fuji Fujichrome ® .
  • the yellow coupler preferably has a relative reactivity, as defined below, of not greater than 0.9.
  • the relative reactivity of the yellow coupler is determined as follows.
  • photographic element is prepared by coating a cellulose acetate-butyrate film support with a photosensitive layer containing 3.77 gm/m 2 gelatin, 0.76 gm/m 2 silver
  • the photosensitive layer is overcoated with a layer containing gelatin at at 1.08 gm/m 2 and bis-vinyl sulfonyl methyl ether at 1.75 weight percent based upon total gelatin.
  • the sample is imagewise exposed and processed using Kodak E-6 ® processing (E-6 ® processing is described in British Journal of Photography Annual. 1977, pp. 194-197).
  • E-6 ® processing is described in British Journal of Photography Annual. 1977, pp. 194-197.
  • the relative reactivities represent the status A blue D-max obtained for the sample compared to that obtained for an identical coating, but containing a coupler having the structure:
  • the oxidized developer competitor compound useful in the practice of the invention has a
  • DM' represents the density of the color image of the coupler N when a competitor compound is added in a quantity of 1/10 mol against coupler N.
  • reaction rate of a competitor with the oxidation product of a color developing agent can be determined as a relative value by finding R for the competitor against coupler N in the above formula.
  • the oxidized developer competitor compound may be incorporated in any layer between the magenta coupler layer and the yellow coupler layer, or within the yellow coupler layer.
  • This layer can be a yellow filter layer, such as a Carey Lea silver layer or a yellow filter dye-containing layer, or it can be a separate interlayer.
  • competitor is preferably incorporated in the material at levels of from about 0.03 g/m 2 to about 0.22 g/m 2 , although other levels may be useful.
  • R 1 represents an electron donating group
  • R 2 represents hydrogen, alkyl, alkoxy, aryl, aryloxy, aralkyl or amino of the formula
  • R 3 is phenyl or benzyl
  • n 0, 1 or 2.
  • substituents which are electron donating groups, include alkyl, which can be substituted or
  • unsubstituted, straight or branched chain having from 1 to about 20 carbon atoms, preferably from about 8 to about 16 carbon atoms; alkoxy, which can be substituted or an unsubstituted, straight or branched chain, having from 1 to about 20 carbon atoms, preferably from about 8 to about 16 carbon atoms; carboxy; carbonamido having the formula
  • R 4 is hydrogen or alkyl having from 1 to about 8 carbon atoms and R 5 is as defined for R 4 or is a benzyl or a phenyl group which may be substituted.
  • R 2 substituents that are alkyl or alkoxy can be as defined for these same substituents in R 1 , or R 2 can be substituted or unsubstituted
  • aryl or substituted or unsubstituted aryloxy having from 6 to about 30 carbon atoms, such as phenyl, phenoxy, naphthyl or naphthoxy.
  • R 2 represents phenyl or phenoxy it is preferred that the aryl ring have a hydrogen bonding substituent in a position ortho to the point of attachment of the carbonyl group to a hydrazide nitrogen atom.
  • Preferred hydrogen bonding groups include hydroxy, primary or secondary amino groups of the formula -NR 4 R 5 , sulfonamido of the formula
  • R 5 is as defined for
  • R 4 or a benzyl or phenyl group.
  • a polar group which can represent R 1 or R 2 can be a single group or a combination of groups which have a tr constant which is more negative than -1.0.
  • the ⁇ constant is defined by C. Hansch, A. Leo, S. Unger, K. Hwan Kim, D. Nikaitani and E. T.
  • R 1 or R 2 polar group or groups include, but are not limited to, y
  • alkyl, alkoxy, aryl, aryloxy, aralkyl and benzyl groups which are represented by one or more of R 1 , R 2 , R 3 , R 4 and R 5 can be
  • halogen atoms for example chlorine
  • haloalkyl groups for example
  • oxidized developer competitor compounds useful in the practice of the invention are disclosed in the above-referenced EP 326,406 and U.S. 4,923,787, and include:
  • the support of the element of the invention can be any, of a number of well-known supports for photographic elements. These include polymeric films such as cellulose esters (e.g., cellulose triacetate and diacetate) and polyesters of dibasic aromatic carboxylic acids with divalent alcohols (e.g., poly(ethylene terephthalate)), paper, and polymercoated paper. Such supports are described in further detail in Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119 [hereinafter referred to as Research Disclosure. December, 1989, Item 308119
  • the silver halide emulsion used in the practice of the invention can contain, for example, silver bromide, silver chloride, silver iodide, silver chlorobromide, silver chloroiodide, silver bromoiodide, or mixtures thereof.
  • the emulsions can include coarse, medium, or fine silver halide grains bounded by 100, 111, or 110 crystal planes.
  • Silver halide emulsions and their preparation are further described in Research Disclosure I, Section I. Also useful are tabular grain silver halide emulsions, as described in Research Disclosure, January, 1983, Item 22534 and U.S. Patent 4,425,426.
  • couplers and competitor compound described above used in the practice of the invention can be incorporated in hydrophilic layers of photographic materials by techniques well-known in the art.
  • One common technique involves the use of high-boiling
  • surfactants useful organic solvents include tricresyl phosphates, di-n-butyl phthalate, and others described in Research Disclosure I. Section XIV. Surfactants are well-known to one skilled in the art, and are described in Research Disclosure I. Section XI. Mixtures of solvents and surfactants may also be used.
  • the silver halide described above can be sensitized to a particular wavelength range of radiation, such as the red, blue, or green portions of the visible spectrum, or to other wavelength ranges, such as ultraviolet, infrared, and the like.
  • the silver halide emulsion associated with the magenta coupler is spectrally sensitized to green light so as to complement the magenta color of the dye formed by the coupler during processing.
  • the silver halide emulsion associated with the yellow coupler is preferably spectrally sensitized to blue light so as to complement the yellow color of the dye formed by the coupler .
  • Chemical sensitization of silver halide can be accomplished with chemical sensitizers such as gold compounds, iridium compounds, or other group VIII metal compounds. Spectral sensitization is
  • spectral sensitizing dyes such as cyanine dyes, merocyanine dyes, styryls, or other known spectral sensitizers. Additional information on sensitization of silver halide is described in
  • multicolor photographic elements generally comprise a blue-sensitive silver halide layer having a yellow color-forming coupler
  • the oxidized developer competitor compound can be any organic compound having a magenta color-forming coupler associated therewith, and a red-sensitive silver halide layer having a cyan color-forming coupler associated therewith.
  • the oxidized developer competitor compound can be any organic compound having a magenta color-forming coupler associated therewith, and a red-sensitive silver halide layer having a cyan color-forming coupler associated therewith.
  • the oxidized developer competitor compound can be
  • This interlayer can be the yellow filter layer typically used in color photographic materials between the yellow and magenta layers, or it can be a separate layer.
  • Color photographic elements and color-forming couplers are well-known in the art and are further described in Research Disclosure I. Section VII.
  • the element of the invention can also include any of a number of other well-known additives and layers, as described in Research Disclosure I. These include, for example, optical brighteners, antifoggants, oxidized developer scavengers (which can be the same as or different than the competitor according to formula (I)), development accelerators, image stabilizers, light-absorbing materials such as filter layers or intergrain absorbers,
  • light-scattering materials gelatin hardeners, coating aids and various surfactants, overcoat layers, interlayers and barrier layers, antistatic layers, plasticizers and lubricants, matting agents, development inhibitor-releasing couplers, bleach accelerator-releasing couplers, and other additives and layers known in the art.
  • the photographic elements of the invention when exposed, are processed to yield an image.
  • Processing can be by any type of known photographic processing, as described in Research Disclosure I. Sections XIX-XXIV.
  • a negative image can be developed by color development with a chromogenic developing agent followed by bleaching and fixing.
  • a positive image can be developed by first developing with a non-chromogenic developer, then uniformly fogging the element, and then developing with a chromogenic developer.
  • Bleaching and fixing can be performed with any of the materials known to be used for that
  • Bleach baths generally comprise an aqueous solution of an oxidizing agent such as water soluble salts and complexes of iron (III) (e.g., potassium ferricyanide, ferric chloride, ammonium or potassium salts of ferric ethylenediaminetetraacetic acid), water-soluble persulfates (e.g., potassium, sodium, or ammonium persulfate), water-soluble dichromates
  • an oxidizing agent such as water soluble salts and complexes of iron (III) (e.g., potassium ferricyanide, ferric chloride, ammonium or potassium salts of ferric ethylenediaminetetraacetic acid), water-soluble persulfates (e.g., potassium, sodium, or ammonium persulfate), water-soluble dichromates
  • Fixing baths generally comprise an
  • aqueous solution of compounds that form soluble salts with silver ions such as sodium thiosulfate,
  • ammonium thiosulfate potassium thiocyanate, sodium thiocyanate, thiourea, and the like.
  • the invention is further illustrated by the following Example.
  • sample 101 which was designated sample 101.
  • sensitizing dyes which are shown as the molar amount per mole of silver halide present in the same layer.
  • Fine Grain Silver Bromide 0.05 (as silver) (0.07 ⁇ equivalent spherical diameter)
  • Coupler M-7 0.49
  • Coupler Y-1 1.82
  • Samples 102 to 106 were prepared in the same manner as described above for Sample 101 except for the addition of the competitors listed in Table I to the Eighth Layer. The added competitors were coated at the levels (in g/m 2 ) shown in Table I.
  • Each of the samples thus prepared was cut into a 35mm width strip.
  • the samples were exposed to a step exposure using green and red light followed by a series of blue flash exposures and processed using standard Kodak E-6 ® processing solutions and
  • the Status A green density was measured (or interpolated) for an area in the reversal D-min region of the step exposure of each sample with a

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

On décrit un matériau photographique composé de: une couche d'émulsion d'halogénure d'argent qui comprend un composé copulant chromogène magenta qui s'échappe, et une couche d'émulsion d'halogènure d'argent qui comprend un copulant chromogène jaune de faible réactivité, où soit la couche de copulant jaune soit une couche se trouvant entre la couche de copulant magenta et la couche de copulant jaune comprend un composé concurrent révélateur oxydé possédant une réactivité élevée.
EP91915799A 1990-08-16 1991-08-09 Materiau photographique Expired - Lifetime EP0543921B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US56839890A 1990-08-16 1990-08-16
US568398 1990-08-16
PCT/US1991/005673 WO1992003762A1 (fr) 1990-08-16 1991-08-09 Materiau photographique

Publications (2)

Publication Number Publication Date
EP0543921A1 true EP0543921A1 (fr) 1993-06-02
EP0543921B1 EP0543921B1 (fr) 1995-03-08

Family

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Application Number Title Priority Date Filing Date
EP91915799A Expired - Lifetime EP0543921B1 (fr) 1990-08-16 1991-08-09 Materiau photographique

Country Status (4)

Country Link
EP (1) EP0543921B1 (fr)
JP (1) JPH05509420A (fr)
DE (1) DE69108037T2 (fr)
WO (1) WO1992003762A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695917A (en) * 1995-11-22 1997-12-09 Eastman Kodak Company Combination of yellow filter dye and 4-equivalent pyrazolone magenta coupler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01193737A (ja) * 1988-01-28 1989-08-03 Konica Corp ハロゲン化銀写真感光材料
JP2767422B2 (ja) * 1988-01-30 1998-06-18 コニカ株式会社 ハロゲン化銀写真感光材料
EP0338785B1 (fr) * 1988-04-21 1999-07-07 EASTMAN KODAK COMPANY (a New Jersey corporation) Elément photographique contenant un composé capable de bloquer un agent développateur oxydé
JPH02131233A (ja) * 1988-11-11 1990-05-21 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9203762A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695917A (en) * 1995-11-22 1997-12-09 Eastman Kodak Company Combination of yellow filter dye and 4-equivalent pyrazolone magenta coupler

Also Published As

Publication number Publication date
JPH05509420A (ja) 1993-12-22
EP0543921B1 (fr) 1995-03-08
DE69108037T2 (de) 1995-10-19
DE69108037D1 (en) 1995-04-13
WO1992003762A1 (fr) 1992-03-05

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