JPS62166334A - Silver halide color photosensitive material - Google Patents

Abstract

PURPOSE:To obtain a silver halide color photosensitive material having superior processing stability by restricting the total thickness of all of hydrophilic colloidal layers on one side of a support having emulsion layers on the side on the dry basis and by incorporating a DIR compound into one of the emulsion layers. CONSTITUTION:The total thickness of all of hydrophilic colloidal layers on one side of a support having emulsion layers on the side is restricted to <=18mum, preferably 10-16mum on the dry basis, and a DIR compound which separates a compound capable of releasing a highly diffusible development retarder or a precursor thereof by a reaction with the oxidized product of a color developing agent is incorporated into at least one of the emulsion layers. The diffusible DIR compound is represented by formula I (where A is a coupler component, m=1 or 2, and Y is a group which bonds to the coupling position of the coupler component A and is eliminated as a highly diffusible development retarder or a compound capable of releasing the retarder by a reaction with the oxidized product of a color developing agent). A concrete example of the DIR compound is represented by formula I-1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a silver halide color light-sensitive material, and particularly to a light-sensitive material having excellent sharpness and color reproducibility, and improved processing stability. It is something.

[Prior art and its problems] Conventionally, silver halide color photosensitive materials have been required to have clear image outlines and to be able to depict minute objects without blurring, that is, to have excellent sharpness. ing.

At the same time, more vivid color reproduction is also required.

Typical conventional techniques for improving sharpness and color reproducibility include, for example, diffusible development inhibitor-releasing compounds or development inhibitor precursor-releasing compounds (hereinafter referred to as diffusible DIR).
By using compounds (collectively referred to as compounds), image sharpness is improved by the adjacent effect using the concentration gradient of the inhibitor during Kawaden processing, and it also exerts a suppressing effect (interlayer effect: IIE) on other layers. , a method of also improving color reproducibility is known. However, when this diffusive DIR compound is used, it becomes susceptible to pH variations in color development during development processing, and has the disadvantage that variations in the finished image due to development processing become large.

This is because the balance of the reaction rate between silver halide and the aromatic primary amine color developing agent changes between layers during color development, and the oxide of the color developing agent and the diffusible DI
This is thought to be due to the fact that the reaction with the R compound is also different in each room, so the timing and intensity of the effect of the released diffusible inhibitory group changes, and the influence of variations during development is amplified.

[Object of the Invention 1 The object of the present invention is to improve the above-mentioned drawbacks. That is, an object of the present invention is to provide a silver halide color photosensitive material that uses a diffusible DIR compound and has excellent processing stability.

[Structure of the Invention] The object of the present invention is to provide a red-sensitive silver halide emulsion layer containing a cyan color-forming coupler, a green-sensitive silver halide emulsion layer containing a magenta color-forming coupler, and a blue-sensitive silver halide emulsion layer containing a yellow color-forming coupler on a support. In a silver halide color light-sensitive material having a silver halide emulsion layer, the total dry film thickness of all the hydrophilic colloid layers on the side having the emulsion layer is 18 μm or less, and at least one of the emulsion layers is colored. This is achieved by a silver halide color light-sensitive material containing a DIR compound that releases a highly diffusive development inhibitor or a compound capable of releasing a development inhibitor precursor upon reaction with an oxidized form of a developing agent. Ta.

Here, the dry film thickness is measured under conditions where the temperature is 23° C. and the humidity is controlled to 55%. The lower limit of the total dry film thickness of all the hydrophilic colloid layers on the side having the emulsion layer (hereinafter referred to as "film thickness on the emulsion side") is determined by the silver halide emulsion, oil agents such as couplers, additives, etc. There is a limit depending on the volume occupied by the binder such as gelatin, and the preferred film thickness on the emulsion side is 5 μm to 18 μm, more preferably 10 μm to 18 μm.
It is 16 μm. Regarding the film thickness, the cross section of the dried sample is magnified with a scanning electron microscope and the film thickness of each layer is measured.

The diffusible DIR compound of the present invention is represented by the following general formula.

Diffusible DIR compound general formula (1) % formula %) In the formula, A represents a coupler component, m represents 1 or 2, and Y is bonded to the coupling position of the coupler component A to form an oxidized product of a color developing agent. This refers to a highly diffusible development inhibitor or a compound capable of releasing a development inhibitor.

A only needs to have the properties of a coupler, and it is not necessarily necessary to create a dye by coupling.

In the diffusible DIR compound general formula (1), Y represents the following general formulas (2A) to (5).

General formula of diffusible DIR compound (2A) General formula of diffusible DIR compound (2B) General formula of diffusible DIR compound (2C) General formula of diffusible DIR compound (2D) General formula of diffusible DIR compound (2E) (x ; o, β! CO SE) Diffusive f) IR compound general formula (3) Diffusible DI compound general formula (4) #lnD I R conversion 41 + general formula (5) Above general formula (2)
A) In PJ (2D) and (3), 几 is an alkyl group, an alkoxy group, an acylamino group, a halogen atom, an alkoxycarbonyl group, a thiazolylidenamino group, an aryloxycarnyl group, an acyloxy group, a carbamoyl group%
N-alkylcarbamoyl M*N*N-dialkylcarbamoyl group, nitro group, amino group, N-arylcarbatonyloxy group, sulfamoyl group, N-furkylcarbamoyloxy group, hydroxy group, alkoxycarbonylamino group, alkylthio group, arylthio group , aryl, -l group, heterocyclic group, cyano group, alkylsulfonyl group or aryloxycarbonylamino group. n represents 1 or 2, and Hl, where n is 2, may be the same or different.
The total carbon value is 0. , ~-General formula s) K > and R1 is a hydrogen atom or an alkyl group.

represents an aryl group or a heterocyclic group, R4 is water
Elementary atoms, alkyl groups, aryl groups, halogen atoms.

Acruamino group, alkoxycarbonylamino group, aryloxycarbonylamino group, alkane sulfonamide group, cyano group, heterocyclic group, alkyldeo group or! -Represents an amino group.

"1 &R2s" 3 or R4 represents an alkyl group, such as a nitro group, a cyano group, an aryl group, an alkoxy group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, or a sulfamoyl group.

δ is a carbamoyl group, hydroxy group, alkanesulfonyl group, arylsulfonyl group, alkylthio group, or arylthio group.

When R), R2, and R3 also represent an aryl group, the aryl group may be substituted. Examples of substituent groups include alkyl groups, alkenyl groups, alkoxy groups, alkoxycarbonyl groups, halogen atom groups, amino groups, sulfamoyl groups, hydroxy groups, carbamoyl groups, aryloxycarbonylamino groups,
``Cyano group or ureido group, etc.

R□s R2s When R3 or R4 represents a heterocyclic group, the heteroatom is a nitrogen atom or a zero atom.

A pyridyl group, a quinolyl group, a furyl group, a benzothiazolyl group, an oxacyl group, which has a 5-negative or 6-membered monocyclic ring or a rainbow gold ring containing a sulfur atom.

imidazolyl group, thiazolyl group, triazolyl group.

It is selected from a benzotri7zolyl group, an imide group, an oxazine group, etc., and these may be further substituted with the substituents listed for the aryl group.

In general formulas (2E) and (4), the number of carbon atoms contained in R2 is 1-15.

In the above general formula (5), the total number of carbon atoms contained in S and τ is 1 to 15.

In the above general formula (υ), YFi represents the following general formula (63).

Polar DIR compound general formula (6) % formula % In the formula, the TIME group is bonded to the coupling position of the coupler,
It should be a group that can be cleaved by reaction with color developing chemicals, or a group that can be released by moderately releasing the INHIBIT group after cleavage (for couplers). The INHIBIT group is ゛! It is an A-image suppressor.

E E (6) Ic :> In TeT I M B
I NHI B I T group d following general formula (7) ~
I will make @.

General formula of diffusible DI compound (7) General formula of diffusible DIR compound (8) General formula of diffusible DIR compound (9) % formula%) General formula of diffusible DI compound (10 General formula of diffusible DI compound (% formula %) ) Diffusible DIR compound general formula (2) Diffusible DIR compound general formula (OH2)kB-Co-INHIBIT general formula (7)
~(In l13, FL5Fi hydrogen atom, halogen atom, alkyl group, alkenyl group, aralkyl group, alkoxycarbonyl group, alkoxycarboni/I/ group, anilino group, acylamino group, ureido group, cyano group, nitro group, 〃
- represents a sulfamoyl group, a carbamoyl group, an aryl group, a carboxy group, a sulfo group, a hydroxy group, an alkanesulfonyl group; In, t represents 1 or 2.

In general formulas (7), (b), (2) and (2),
represents an integer from 0 to 2.

In general formulas (7), (10 and (b)), sR6 represents an alkyl group, alkenyl group, aralkyl group, or cycloalkyl group 17t, and in general formulas (6) and 03, B represents an oxygen atom. or -h+-(p, S represents -, which is the same as defined above, and IN)(IBIT The group has the general formula (2A), (2B), (
3).

(4) It has the same meaning as the general formula defined in (5) except for the number of carbon atoms.

However, in general formulas (2A), (2B), and (3), the total number of carbon atoms contained in each R, )ζ of -molecule 9 is 1
．． = 32, in the general formula (4), the number of carbon atoms contained in s R2 is 1 to 32, in the general formula (5),
The total number of carbon atoms contained in R and R4 is 0 to 32.

When R5 and R6 represent an alkyl group,
Substituents which may be either R-free, M-shaped or cyclic include the f substituents listed when sR1 to R4 are alkyl groups.

When 几 and 几 represent an aryl group, the aryl group may be substituted.Examples of the substituent include 0 and 6 substitutions when R1-几 is an ary group.

In my arms! It's delicious.

The yellow image-retaining Kag 2-residues represented by general formula (13) include pivaloylacetanilide type, benzoylacetanilide type, malondiester type,
Malondiamide type, dibenzoylmethane pear, benzothiacylyl heptamide, maron; ester monoamide type, benzothiacilyl acetate type, penzoquinazolylacetamide type, penzoquinazodylacetate type%i
Longiesters, benzimidazolyl acetamide type or benzimidazolyl acetenide type coupler residues, turnip 2-residues derived from heterocycle-substituted acetamides or heterocycle-substituted acetates as described in U.S. Pat. No. 3,841.880, or U.S. Patent 3.770,4
No. 46, British Patent 1. js9. xyi issue.

West German Patent (OLS) No. 2,503.099, Japanese Patent Application Publication No. 1973
-139738, a coupler residue derived from the 7-syl acetamide region described in Shikake Research Disclosure No. 15737, etc., or U.S. Patent No. 4,046.574
Examples include the heterocyclic coupler groups described in the above.

The magenta image-forming coupler residue represented by A includes 5-oxo-2-pyrazoline nucleus, pyrazolo-[1,5-
Coupler residues having an al benzimidazole core or cyanoacetophenone type coupler residues are preferred.

The shea/color image forming coupler residue represented by A is preferably a coupler residue having a phenol nucleus or an α-naphthol nucleus, an indacylon type coupler residue or a pyrazolotriazole type coupler residue.

Furthermore, the effect as a DIR coupler is the same even if the coupler does not substantially form a dye after coupling with the oxidized form of the developing agent and releasing the development inhibitor. Coupler residues of this type represented by A include U.S. Pat.
No. 213, No. 4,088,491, No. 3,632,3
No. 45, No. 3,958,993 or No. 3,961,9
Examples include the coupler residues described in No. 59.

Specific examples of the diffusible DIR compound of the present invention will be listed below, but the invention is not limited thereto.

[Exemplary compounds] 0 ro1
1
υro ro0
qC. H2
500C'CHCOOC□2H Ot Q mouth Q mouth D-17 t D-25 D-26 H 0)i D-35 11t, 10n Dimension: r: 啼1 ■! q mouth Ct D-43 I; L Ct H D-kishi 0 ゛shi M3 L; 1-13 D-Sho D-material D-ki] -ff/ D -s.

N02 30,H CH.

D-5 cow NO□ D-5! ; 0H 2H5 H Cl1H23 - H These compounds are described in U.S. Patent Nos. 4.234.878 and 3
．． No. 227.554, No. 3,817,291, No. 3.
ssa, ss 3, ss 4,149,888, ss 3,9
No. 33,500, Japanese Patent Publication No. 57-56837, Special Publication No. 5683
1-13239, British Patent No. 2,072,363, British Patent No. 2,070,288, Research Disclosure 1
It can be easily synthesized by the method described in No. 21228, December 981, etc.

As for the layer order of the silver halide photographic light-sensitive material of the present invention, as a typical example, a plurality of silver halides having substantially the same color sensitivity but different light sensitivities are formed on the support. Examples include silver halide photographic materials having at least one photosensitive layer consisting of an emulsion layer. The photosensitive layer has blue light,
It has color sensitivity to either green light or red light, and in multilayer silver halide color photographic light-sensitive materials,
Generally, the arrangement of the unit photosensitive layers is a red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer in this order from the support side, and the arrangement may be reversed or other arrangements may be made.

Between each of the above-mentioned photosensitive layers, non-photosensitive layers such as various intermediate layers may be provided as necessary. In addition, the plurality of silver halide emulsion layers constituting each photosensitive layer are usually such that the layer furthest from the support has the highest photosensitivity, and the photosensitivity gradually decreases toward the support. It is preferable that the silver halide emulsion layers be arranged in the following manner, and a non-photosensitive layer may be provided between each silver halide emulsion layer.

In the present invention, a non-photosensitive hydrophilic colloid layer may be provided in addition to the emulsion layer, and it is preferred that the non-photosensitive hydrophilic colloid layer contains fine grain silver halide.

The term "fine grain silver halide" as used herein refers to silver halide grains which are not exposed to light during imagewise exposure to obtain a dye image, are not substantially developed in the development process, and are not fogged in advance.

This fine grain silver halide has a silver bromide content of 0 to 10
Silver halide containing 0 mol % of silver bromide may have various compositions as long as it contains silver bromide in this proportion.

Further, silver chloride and/or silver iodide may be contained as necessary. The fine-grain silver halide used preferably has an average grain size of 0.01 .mu.m to 0.3 .mu.m, more preferably 0.02 .mu.m to 0.2 .mu.m. The average grain size of such silver halide grains means the average value of the diameter of a circle corresponding to the projected area of each individual silver halide grain, and this measurement is performed, for example, in ``Basics of Photographic Engineering - Silver Salt Photography''. (published by the Photographic Society of Japan, January 30, 1972)
It can be determined by the method described on pages 227 to 228.

This fine-grained silver halide can be obtained in the same manner as in preparing a conventional photosensitive silver halide emulsion, or in accordance with the method for preparing a conventional photosensitive silver halide emulsion. In this case, the surface of the silver halide grains does not need to be chemically sensitized, nor is there any need for spectral sensitization. However, before adding these fine silver halide grains to the coating solution, known stabilizers such as triazole compounds, azaindene compounds, benzthiazolium compounds, mercapto compounds, and zinc compounds are added in advance. It is preferable to keep it.

When the silver halide color light-sensitive material of the present invention has at least one non-photosensitive hydrophilic colloid layer of 2 m or more, it is sufficient that at least one of the layers contains fine grain silver halide. be.

m of the fine grain silver halide added to the non-photosensitive hydrophilic colloid layer of the photographic material of the present invention is determined by several factors, such as the halogen composition of the fine grain silver halide, the particle size, the bromide ion concentration in the developer, Although it varies depending on the photosensitive emulsion layer, silver R is 0.1 to 50 mfJ/di2, preferably 1 to 50 mfJ/di2.
It is 10 mg/d12.

When the fine-grain silver halide is added to two or more non-photosensitive hydrophilic colloid layers, the total amount may be added to the above-mentioned amount. In this case, it is not necessary to add the same amount of fine grain silver halide to each colloid layer. If the addition m of fine-grain silver halide is less than 0.1 mg/d 712, it will not be possible to sufficiently promote developability, and if m is less than 50 m (1/
When it exceeds d12, the sensitivity is significantly lowered and the fog density is increased, resulting in significant disadvantages in photographic performance.

This fine-grained silver halide may be contained anywhere in the non-photosensitive hydrophilic colloid layer, but is preferably contained in the non-photosensitive hydrophilic colloid layer adjacent to the halogenated IJI f'L agent layer which is farthest from the support. It is a colloid layer that is added to a non-photosensitive hydrophilic colloid layer located on the far side when viewed from the support.

The silver halide emulsions used in the present invention include conventional silver halide emulsions such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, silver chloroiodobromide, and silver chloride. Any silver bromide, silver iodobromide, and silver chloroiodobromide are particularly preferred.

The silver halide grains used in the silver halide emulsion may be obtained by any of the acid method, neutral method, and ammonia method. The particles may be grown all at once, or may be grown after seed particles are created. The method of creating and growing the seed particles may be the same or different.

In the silver halide emulsion, halide ions and silver ions may be mixed simultaneously, or one may be mixed in a liquid in which the other is present. Alternatively, the halide ions and silver ions may be generated by sequentially and simultaneously adding the halide ions and silver ions while controlling the pH (11)Ag in the mixing pot, taking into account the critical growth rate of the silver halide crystals. By this method, 1q of silver halide grains having a regular crystal shape and a nearly uniform grain size are obtained. Conversion methods may be used at any step in the formation of 80X to change the halogen composition of the particles.

Known silver halide solvents such as ammonia, thioether, thiourea, etc. can be present during the growth of silver halide grains.

During the process of grain formation and/or growth, silver halide grains are produced using cadmium salts, zinc salts, lead salts, thallium salts, iridium salts (including complex salts), rhodium salts (including complex salts), and iron salts ( (including complex salts) to add metal ions to the inside of the particles and/or
Alternatively, these metal elements can be contained on the particle surface, and reduction sensitizing nuclei can be provided inside the particle and/or on the particle surface by placing the particle in an appropriate reducing atmosphere.

Unnecessary soluble salts may be removed from the silver halide emulsion after the growth of silver halide grains is completed, or they may be left contained. When removing the salts, Research Disclosure (Research [) 1
This can be carried out based on the method described in Section 2 of No. 17643 (hereinafter abbreviated as RD).

The silver halide grains may have a uniform silver halide composition distribution within the grain, or may be core/shell grains in which the silver halide composition differs between the inside of the grain and the surface layer.

The silver halide grains may be such that the latent image is mainly formed on the surface, or may be such that the latent image is mainly formed inside the grain.

The silver halide grains may have a regular crystal shape such as a cube, octahedron, or dodecahedron, or may have an irregular crystal shape such as a spherical shape or a plate shape. In these particles, any ratio of the (1oo) plane to the (111) plane can be used. Further, the particles may have a composite form of these crystal forms, or particles of various crystal forms may be mixed.

The size of silver halide grains is 0.05 to 30μ,
Preferably, those having a diameter of 0.1 to 20μ can be used.

Silver halide emulsions having any grain size distribution may be used. An emulsion with a wide grain size distribution (referred to as a polydisperse emulsion) may be used, or an emulsion with a narrow grain size distribution (referred to as a monodisperse emulsion). A particle with a value of 0.20 or less when divided by the average grain size.The grain size is the diameter in the case of spherical silver halide, and the projection of the grain in the case of grains with a shape other than spherical. It shows the diameter when the image is converted into a circular image of the same area.) may be used alone or in combination. Further, a mixture of a polydisperse emulsion and a monodisperse emulsion may be used.

The silver halide emulsion may be a mixture of two or more separately formed silver halide emulsions.

Silver halide emulsions can be chemically sensitized by conventional methods. That is, sulfur sensitization method, selenium sensitization method, reduction sensitization method,
A noble metal sensitization method using gold or other noble metal compounds can be used alone or in combination.

Silver halide emulsions can be optically sensitized to a desired wavelength range using dyes known in the photographic industry as sensitizing dyes. The sensitizing dyes may be used alone or in combination of two or more. Along with the sensitizing dye, the emulsion contains a dye that itself does not have a spectral sensitizing effect, or a supersensitizer, which is a compound that does not substantially absorb visible light and enhances the sensitizing effect of the sensitizing dye. Yes, yes.

Sensitizing dyes include cyanine dyes, merocyanine dyes,
Complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, steryl dyes and hemioxanol dyes are used.

Particularly useful dyes include cyanine dyes, merocyanine dyes,
and a complex merocyanine pigment.

Silver halide emulsions are used during the manufacturing process of photosensitive materials, during storage,
Alternatively, for the purpose of preventing fog during photographic processing or maintaining stable photographic performance, photographic Compounds known in the art as antifoggants or stabilizers can be added.

It is advantageous to use gelatin as a binder (or protective colloid) for silver halide emulsions, but gelatin derivatives, graft polymers of gelatin and polymers, other proteins, sugar derivatives, cellulose derivatives, single Alternatively, hydrophilic colloids such as synthetic hydrophilic polymeric substances such as copolymers may also be used.

The photographic emulsion layer or other hydrophilic colloid layer of a light-sensitive material using the silver halide emulsion of the present invention contains one or more hardeners that crosslink binder (or protective colloid) molecules and increase film strength. It can be used to harden the membrane. A hardening agent can be added to the processing solution to harden the photosensitive material to the extent that it is not necessary to add a hardening agent.
It is also possible to add a hardening agent to the processing solution.

For example, aldehydes (formaldehyde, glyoxal, geltaraldehyde, etc.), N-methylol compounds (dimethylol urea, methylol dimethylhydantoin, etc.), dioxane derivatives (2,3-dihydroxydioxane, etc.), activated vinyl compounds (1,3,5 -Triacryloyl-hexahydro-S-triazine, 1,
3-vinylsulfonyl-2-propatol, etc.), active halogen compounds (2,4-dichloro-6-hydroxy-
s-triazine, etc.), mucohalogen rlis (mucochloric acid, mucophenoxychloroic acid, etc.), etc. can be used alone or in combination.

A plasticizer can be added to the silver halide emulsion layer and/or other hydrophilic colloid (1) of the light-sensitive material for the purpose of increasing flexibility. Preferred plasticizers are A of Section X of RD 17643.
It is a compound described in .

The photographic emulsion layer and other hydrophilic colloid layers of a light-sensitive material may contain a dispersion (latex) of a water-insoluble or n-soluble synthetic polymer for the purpose of improving dimensional stability.

For example, alkyl (meth)acrylate, alkoxyalkyl (meth)acrylate, glycidyl (meth)acrylate, (meth)acrylamide, vinyl ester (e.g. vinyl acetate), acrylonitrile, olefin, styrene, etc. alone or in combination, or these and acrylic acid, A polymer containing a combination of methacrylic acid, α, β-unsaturated dicarboxylic acid, hydroxyalkyl (meth)acrylate, sulfoalkyl (meth)acrylate, styrene sulfonic acid, etc. as a single component can be used.

In the emulsion layer of a light-sensitive material, a dye is formed by a coupling reaction with an oxidized form of an aromatic primary amine developing agent (for example, p-phenylenediamine derivative, aminophenol derivative, etc.) during color development processing. Dye-forming couplers are used. The dye-forming couplers are typically selected for each emulsion layer such that a dye is formed that absorbs light in the light-sensitive spectrum of the emulsion layer, with a yellow dye-forming coupler for the blue-sensitive emulsion layer and a dye for the green-sensitive emulsion layer. A magenta dye-forming coupler is used in the sensitive emulsion layer and a cyan dye-forming coupler is used in the red-sensitive emulsion layer. However, depending on the purpose, silver halide color photographic materials may be produced using different combinations from the above.

It is desirable that these dye-forming couplers have a ring called a ballast group in the molecule, which makes the coupler non-diffusive and has 8 or more carbon atoms. In addition, even though these dye-forming couplers are quaternary, in which four silver ions need to be reduced in order to form one molecule of dye, only two silver ions need to be reduced. 2nd class] Either gender is fine. Dye-forming couplers include colored couplers that have a color correction effect, and by coupling with oxidized forms of developing agents, bleach accelerators, developers, silver halide solvents, toning agents, hardeners,
Compounds that release photographically useful fragments such as fogging agents, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers are included.

Further, DIR compounds that release non-diffusible development inhibitors can be used alone or in combination depending on the purpose. A colorless coupler (also called a competitive coupler) which undergoes a coupling reaction with an oxidized aromatic primary amine developer but does not form a dye can also be used in combination with a dye-forming coupler.

As the yellow dye-forming coupler, known acylacetanilide couplers can be preferably used.

Among these, benzoylacetanilide and pivaloylacetanilide compounds are advantageous. Specific examples of yellow coloring couplers that can be used include, for example, U.S. Patent No. 2,87
No. 5,057, No. 3.265,506, No. 3.4
No. 08.194, No. 3,551,155, No. 3,
No. 582,322, No. 3.725.072j3, No. 3,891,445, West German Patent No. 1,547,868, West German Application No. 2,219,917, No. 2,2G1,
No. 361, No. 2,414.006, British Patent Nos. 1 and 4
No. 25,020, Japanese Patent Publication No. 51-10783, Japanese Patent Publication No. 4
No. 7-26133, No. 48-73147, No. 50-6
No. 341, No. 50-87650, No. 50-1233
No. 42, No. 50-130442, No. 51-2182
No. 7, No. 51-102636@, No. 52-82424, No. 52-115219, No. 58-95346, etc.

As the magenta dye-forming coupler, known 5-pyrazolone couplers, pyrazolobenzimidazole couplers, pyrazolotriazole couplers, open-chain acylacetonitrile couplers, indacylon couplers, and the like can be used.

Specific examples of magenta color-forming couplers that can be used include, for example, U.S. Pat.
No. 3,062,653, No. 3.127.26
No. 9, No. 3,311,476, No. 3,419,3
No. 91, No. 3,519,429, No. 3,558,
No. 319, No. 3.582.322, No. 3,615
, No. 506 1. Same No. 3,834,908, Same No. 3.8
No. 911445, West German Patent No. 1,810,464, West German Patent Application (OLS) No. 2,408,665, No. 2,417,945, No. 2,418,959,
JP 2,424,467, JP 40-6031, JP 49-74027, JP 49-74028, JP 4
9-129538, No. 50-60233, No. 50
-159336, 51-20826, 51-2
No. 6541, No. 51-26541, No. 52-4212
No. 1, No. 52-58922, No. 53-55122,
Examples include those described in Japanese Patent Application No. 55-110943Q.

Phenol or naphthol couplers are commonly used as cyan dye-forming couplers. Specific examples of cyan color-forming couplers that can be used include, for example, U.S. Patent No. 2.42.
3.730, 2,474,293, 2,8
No. 01,171, No. 2,895,826, No. 3,
No. 476.563, No. 3.737.326, No. 3
, 758,308, specification No. 3.893.044, JP-A-47-37425, JP-A-50-10135,
No. 50-25228, No. 50-112038, No. 5
Couplers described in Japanese Patent Application Publication No. 0-117422, Japanese Patent Application Publication No. 50-130441, etc., and couplers described in Japanese Patent Application Laid-open No. 58-98731 are preferred.

Among dye-forming couplers, colored couplers, DIR couplers, diffusible DIR compounds, DIR compounds, image stabilizers, one-color antifoggants, ultraviolet absorbers, optical brighteners, etc. that do not need to be adsorbed on the surface of silver halide crystals, Various methods can be used for the hydrophobic compound, such as a solid dispersion method, a latex dispersion method, and an oil-in-water emulsion dispersion method, and these methods can be selected as appropriate depending on the chemical structure of the hydrophobic compound such as the coupler. can. For the oil-in-water emulsion dispersion method, conventionally known methods for dispersing hydrophobic additives such as couplers can be applied.
Usually, it is dissolved in a high-boiling primary solvent with a boiling point of about 150°C or higher, if necessary, in combination with a low-boiling point and/or water-soluble primary solvent, and a surfactant is used in a hydrophilic binder such as an aqueous gelatin solution. Stirrer, homogenizer 1. It may be emulsified and dispersed using a dispersing means such as a colloid mill, a flow jet mixer, or an ultrasonic device, and then added to the desired hydrophilic colloid layer. A step of removing the low boiling point organic solvent may be included simultaneously with the dispersion or dispersion.

Examples of high-boiling point solvents include organic compounds with a boiling point of 150°C or higher, such as phenol derivatives, phthalate alkyl esters, phosphate esters, citric acid esters, benzoic acid esters, alkylamides, fatty acid esters, and trimesic acid esters, which do not react with the oxidized form of the developing agent. A solvent is used.

Low boiling or water-soluble solvents can be used in conjunction with or in place of high boiling solvents. Examples of organic solvents having a low boiling point and substantially insoluble in water include ethyl acetate, propyl acetate, butyl acetate, butanol, chloroform, carbon tetrachloride, nitromethane, nitroethane, and benzene.

When dye-forming couplers, DIR couplers, colored couplers, DIR compounds, image stabilizers, color antifoggants, ultraviolet absorbers, optical brighteners, etc. have acid groups such as carboxylic acid or sulfonic acid, they can be used as an alkaline aqueous solution. They can also be incorporated into hydrophilic colloids.

Anionic surfactants, nonionic surfactants, Cationic surfactants and amphoteric surfactants can be used.

The oxidized form of the developing agent or the electron transfer agent may migrate between the emulsion layers of the light-sensitive material (between the same color-sensitive layers and/or between different color-sensitive layers), causing color turbidity or deterioration of sharpness. A color antifoggant can be used to prevent graininess from becoming noticeable.

The antifoggant may be contained in the emulsion layer itself, or
An interlayer may be provided between adjacent emulsion layers and contained in the interlayer.

An image stabilizer can be used in the photosensitive material to prevent deterioration of the dye image. Compounds that can be preferably used are those described in RD No. 17643, Section 2 J.

Hydrophilic colloid layers such as protective layers and intermediate layers of photosensitive materials may contain ultraviolet absorbers to prevent fogging due to discharge caused by charging of the photosensitive material due to friction, etc., and to prevent image deterioration due to ultraviolet rays. good.

In order to prevent deterioration of magenta dye-forming couplers and the like due to formalin during storage of the light-sensitive material, a formalin scavenger can be used in the light-sensitive material.

When containing dyes, ultraviolet absorbers, etc. in the hydrophilic colloid layer of a photosensitive material, they may be mordanted with a mordant such as a cationic polymer.

Compounds that change the developability, such as development accelerators and development retarders, and bleaching accelerators can be added to the silver halide emulsion layer and/or other hydrophilic colloid layers of the light-sensitive material. A compound that can be preferably used as a development accelerator is RD 17
The compound is a compound described in Item XXI ¥48-0 of No. 643, and the development retardant is a compound described in Item E of XXI of No. 17643. A black and white developer and/or its precursor may be used to accelerate development or for other purposes.

The emulsion layer of a photographic light-sensitive material is made of polyalkylene oxide or its derivatives such as ethers, esters, and amines, thioether compounds, thiomorpholines, quaternary ammonium compounds, urethane derivatives, etc. for the purpose of increasing sensitivity, increasing contrast, or promoting development. It may also contain urea derivatives and imodazole derivatives.

A fluorescent whitening agent can be used in the photosensitive material for the purpose of emphasizing the whiteness of the white background and making the coloration of the white background less noticeable. Compounds which can preferably be used as optical brighteners are described in section V of RD 17643.

The photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, and an antiirradiation layer. These layers and/or the emulsion layer may contain dyes that are leached from the light-sensitive material or bleached during the development process. Examples of such dyes include oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, cyanine dyes, and azo dyes.

In the silver halide emulsion layer and/or other hydrophilic colloid layer of the light-sensitive material, reduction of gloss of the light-sensitive material, improvement of writeability,
A matting agent can be added for the purpose of preventing photosensitive materials from sticking to each other. Any matting agent can be used, but examples include silicon dioxide, titanium dioxide, magnesium dioxide, aluminum dioxide, barium sulfate, calcium carbonate, polymers of acrylic acid and methacrylic acid and their esters, polyvinyl resin, polycarbonate, and styrene. and copolymers thereof. The particle size of the matting agent is preferably O,OSμ to 10μ. Addition range is 1 to 300111<1/f
is preferred.

A lubricant can be added to the photosensitive material to reduce sliding friction.

An antistatic agent can be added to the photosensitive material for the purpose of preventing static electricity. The antistatic agent may be used in the antistatic layer on the side of the support on which the emulsion is not laminated, and the protective colloid layer other than the emulsion layer on the side on which the emulsion layer is laminated with respect to the emulsion layer and/or the support. May be used for. Preferably used antistatic agents are the compounds described in RD 17643 X■.

The photographic emulsion layer and/or other hydrophilic colloid layer of the light-sensitive material may be coated with coating properties, antistatic properties, slipperiness properties, emulsification dispersion,
Various surfactants can be used for the purpose of preventing adhesion and improving photographic properties (development acceleration, film hardening, sensitization, etc.).

The support used in the photosensitive material of the present invention includes α-olefin polymers (e.g. polyethylene, polypropylene,
Burnable reflective supports such as paper laminated with ethylene/butene copolymer), synthetic paper, etc., semi-synthetic or synthetic polymers such as cellulose acetate, cellulose nitrate, borisdylene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, polyamide, etc. These include films made of 2000, flammable supports made of these films with reflective layers, glass, full-reflection materials, ceramics, etc.

After subjecting the surface of the support to corona discharge, ultraviolet irradiation, flame treatment, etc. as necessary, the photosensitive material can be used directly or to improve the adhesion, antistatic properties, dimensional stability, abrasion resistance, hardness, etc. of the support surface.
It may be applied through lti or lower to 11ffi to improve antihalation properties, friction properties, and/or other properties.

When coating the photosensitive material, a thickener may be used to improve coating properties. Also, for things like hardeners, which have quick reactivity and will cause gelation if added to the coating solution before coating, it is best to mix them using a static mixer or the like just before coating. preferable.

As coating methods, extrusion coating and curtain coating, which allow two or more types of layers to be applied simultaneously, are particularly useful, but packet coating may also be used depending on the purpose. Further, the coating speed can be arbitrarily selected.

Examples of surfactants include, but are not limited to, natural surfactants such as saponin, nonionic surfactants such as alkylene oxide, glycerin, and glycidol, higher alkylamines, quaternary ammonium salts, pyridine, and others. Cationic surfactants such as heterocycles, phosphoniums or sulfoniums, carboxylic acids, sulfonic acids,
Anionic surfactants containing acidic groups such as phosphoric acid, sulfuric acid esters, and phosphoric acid esters; amphoteric surfactants such as amino acids, aminosulfonic acids, and sulfuric acid or phosphoric acid esters of amino alcohols may be added.

Furthermore, it is possible to use a fluorine-containing surfactant for the same purpose.

To obtain a dye image using the photosensitive material of the present invention, after exposure,
Perform color photo processing. Color processing includes a color development process, a bleaching process, a fixing process, a water washing process, and, if necessary, a stabilizing process. In addition, a bleach-fixing process can be carried out using a one-bath bleach-fixing solution, or a monobath processing process using a one-bath developing, bleach-fixing solution that allows color development, bleaching, and fixing to be carried out in one bath. You can also do this.

Below, in combination with these processing steps, a front hardening treatment step, its neutralization step, a stop fixing treatment step, a rear hardening treatment step, etc. may be performed. In these treatments, instead of the color development process, an activator process may be performed in which a color developer or its precursor is contained in the material and the development process is performed using an activator. Processing can be applied. Among these processes, typical processes are shown below. (These treatments are carried out as the final step, which is either a water washing process, a water washing process, or a stabilization process.) Color development process - Bleach process Constant fixation process - Color development process - Bleach-fixing process Process/PrevJ! Membrane processing process - Color development process - Stop fixing process - Washing process - Bleaching process Constant fixation process - Washing process -
Post-hardening process/Color development process - Water washing process - Supplementary color development process - Stop process - Bleach process Constant fixation process/Activator process - Bleach-fix process/Activator process - Bleaching process Process Fixed treatment process / Monobath treatment process The treatment temperature is usually selected in the range of 10°C to 65°C,
The temperature may exceed 65°C. Preferably from 25°C
Processed at 45°C.

A color developing solution generally consists of an alkaline aqueous solution containing a color developing agent. The color developing agent is an aromatic primary amine color developing agent, and includes amine phenol derivatives and p-phenyrezine amine derivatives. These color developing agents can be used as salts of Ig1 acids and inorganic acids,
For example, salt-like acids, sulfates, p-toluenesulfonates, northern sulfates, oxalates, benzenesulfonates, etc. can be used.

These compounds are generally about 0.0% in color developer 12.
Concentration of 1 to 309, more preferably 1 t of color developing solution
It is used at a concentration of about 1 to 15 (+). If the amount added is less than 0.1 g, sufficient coloring moisture cannot be obtained.

Examples of the above amine phenol developer include O-aminophenol, p-aminophenol, 5-amino-
Included are 2-oxy-toluene, 2-amino-3-oxy-toluene, 2-oxy-3-amino-1,4-dimethyl-benzene, and the like.

A particularly useful primary aromatic amine color developer is N-N
-Dialkyl-p-phenylenediamine type compound, and the alkyl group and phenyl group may be substituted or unsubstituted. Among them, particularly useful examples include N-N-dimethyl-p-phenylenediamine hydrochloride, N-methyl-〇-phenylenediamine hydrochloride, N,N-dimethyl-p-phenylenediamine hydrochloride, and 2-amino- 5-(N-ethyl-N-dodecylamino)-toluene, N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate, N-ethyl-N-β-hydroxyethylamino Aniline, 4-amino-3-methyl-N, N'-diethylaniline, 4-amino-N-(2-methoxyethyl)-N-ethyl-3-methylaniline-p-toluenesulfonate, etc. be able to.

Further, the above color developing agents may be used alone or in combination of two or more. Furthermore, the above color developing agents may be incorporated into color photographic materials.

In this case, it is also possible to treat the silver halide color photographic light-sensitive material with an alkaline solution (activator solution) instead of a color developing solution, and the bleach-fixing process is carried out immediately after the alkaline solution treatment.

The color developing solution used in the present invention may contain alkaline agents commonly used in developing solutions, such as sodium hydroxide, potassium hydroxide, ammonium hydroxide, sodium carbonate, potassium carbonate, sodium chloride, sodium metaborate, or borax. and various additives such as benzyl alcohol, alkali metal halides such as potassium bromide or potassium chloride, or B4 regulators such as citrazic acid, and preservatives such as hydroxylamine or sulfites. etc. may be included. Furthermore, various antifoaming agents and surfactants, as well as organic solvents such as methanol, dimethylformamide or dimethyl sulfoxide, etc. can be appropriately contained.

I)H of the color developing solution used in the present invention is usually 7 or more, preferably about 9-13.

In addition, the color developing solution used in the present invention may contain antioxidants such as diethylhydroxyamine, tetronic acid, tetronimide, 2-anilinoethanol, dihydroxyacetone, aromatic secondary alcohol, hydroxamic acid, pentose, or hexose, pyrogallol-1,
3-dimethyl ether etc. may be contained.

Various chelating agents can be used in combination as metal ion sequestering agents in the color developing solution used in the present invention. For example, as the chelating agent, amine polycarboxylic acids such as ethylenediaminetetraacetic acid, diethylenetriaminopentaacetic acid, 1-
Hydroxyethylidene-1,1'-diphosphonic acid, aminopolyphosphonic acid such as aminotri(methylenephosphonic acid) or ethylenediaminetetraphosphoric acid, oxycarboxylic acid such as citric acid or gluconic acid, 2-phosphonobutane 1,2,4-tricarboxylic acid, etc. Examples include phosphonocarboxylic acids, polyphosphoric acids such as tripolyphosphoric acid and hexametaphosphoric acid, and polyhydroxy compounds.

The bleaching process may be performed simultaneously with the fixing process as described above, or may be performed separately.

As bleaching agents, metal complex salts of m-acids are used, such as polycarboxylic acids, aminopolycarboxylic acids, or organic acids such as oxalic acid and citric acid, coordinated with metal ions such as iron, cobalt, and copper. It will be done. Among the above organic acids, the most preferred organic acids include polycarboxylic acids and aminopolycarboxylic acids. Specific examples of these include ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid.

Ethylenediamine-N-(β-oxyethyl)-N,N
-, N-monotriacetic acid, propylene diamine tetraacetic acid,
Nitrilotriacetic acid, cyclohexanediaminetetraacetic acid, iminodiacetic acid, dihydroxyethylglycincitric acid (
or tartaric acid), ethyl ether diamine tetraacetic acid, glycol ether diamine tetraacetic acid, ethylenediaminetetrapropionic acid, phenylenediaminetetraacetic acid, and the like.

These polycarboxylic acids may be alkali metal salts, ammonium salts or water-soluble amine salts.

These bleaches are used at 5 to 450 g/ffi, more preferably 20 to 250 (J/1).

In addition to the above-mentioned bleaching agent, the bleaching solution may contain a sulfite salt as a preservative, if necessary. Alternatively, it may be a bleaching solution containing an ethylenediaminetetraacetate iron (I[[) complex salt bleaching agent and containing a large amount of a halide such as ammonium bromide. As the halides, in addition to ammonium bromide, hydrochloric acid, hydrobromic acid, lithium bromide, sodium bromide, potassium bromide, sodium iodide, potassium iodide, ammonium iodide, etc. can also be used. can.

The bleaching solution used in the present invention includes JP-A No. 46-280, JP-B No. 45-8506, JP-B No. 46-556, Belky Patent No. 770,910, JP-A No. 45-8836,
Various bleach accelerators described in JP-A-53-9854, JP-A-54-71634 and JP-A-49-42349 can be added.

The pH of the bleaching solution used is 2.0 or higher, but generally it is 4.
．． It is used between 0 and 9.5, preferably between 4.5 and 8.0, and most preferably between 5.0 and 7.0.

A fixer having a commonly used composition can be used. As fixing agents, compounds that react with silver halide to form water-soluble complex salts, such as potassium thiosulfate, sodium thiosulfate, ammonium thiosuccinate, and thiocyanates, which are used in ordinary fixing processes, are used. Typical examples include thiocyanates such as potassium acid, sodium thiocyanate, and ammonium thiocyanate, thiourea, and thioether. These fixatives are 5
It is used at a rate of 70 to 25 h/ffi. Incidentally, a part of the fixing agent can be contained in the bleaching tank, or conversely, a part of the bleaching agent can also be contained in the fixing tank.

The bleaching solution and/or fixing solution may contain various pH buffers such as boric acid, borax, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate, and ammonium hydroxide. These agents may be contained alone or in combination of two or more. Furthermore, various optical brighteners, antifoaming agents, or surfactants can be contained. In addition, preservatives such as hydroxylamine, hydrazine, bisulfite adducts of aldehyde compounds, organic chelating agents such as aminopolycarboxylic acids, stabilizers such as nitroalcohols and nitrates, hardening agents such as water-soluble aluminum salts, methanol,
Paid solvents such as dimedyl sulfamide and dimedyl sulfoxide can be contained as appropriate.

The pH of the fixer is used at 3.0 or higher, but generally it is 4.
．． 5 to 10, preferably 5 to 9.5, most preferably 6 to 9.

Examples of the bleaching agent used in the bleach-fixing solution include the metal complex salts of organic acids described in the above bleaching process, and preferred compounds and concentrations in the processing solution are also the same as in the above bleaching process.

The bleach-fixing solution contains a silver halide fixing agent in addition to the above bleaching agent, and if necessary, a sulfite salt as a preservative. In addition, a bleach-fix solution consisting of an ethylenediaminetetraacetic acid iron (III) complex salt bleach and a halide such as ammonium bromide other than the above-mentioned silver halide fixer, or conversely, a halogen such as ammonium bromide may be used. A bleach-fix solution with a composition containing a large amount of a compound, and a special bleach-fix solution with a composition consisting of a combination of a complex salt bleaching agent (iron ethylenediaminetetraacetate <III) and a large amount of a halide such as ammonium bromide, etc. can also be used. In addition to ammonium bromide, the halides include hydrochloric acid, hydrobromic acid,
Lithium bromide, sodium bromide, potassium bromide, sodium iodide, potassium iodide, ammonium iodide, and the like can also be used.

Examples of the silver halide fixing agent that can be included in the bleach-fixing solution include the fixing agents described in the above fixing process. The concentration of the fixing agent and the pH buffering agent and other additives that can be contained in the bleach-fixing solution are the same as in the fixing process described above.

The pH of the bleach-fix solution used is 4.0 or higher, generally 5.0 to 9.5, preferably 6.0 to 8.0.
5, most preferably 6.5 to 8.5.

[Examples] Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited thereto.

In all the examples below, the amount added in the silver halide photographic light-sensitive material is per 112 unless otherwise specified. In addition, silver halide and colloidal silver are shown in terms of silver.

Multilayer color photographic element sample 1 was prepared by sequentially forming each layer having the composition shown below on a triacetyl cellulose film support from the support side.

Sample 1st layer: antihalation layer (1-10-1) Gelatin layer containing black colloidal silver.

2nd Layer: Intermediate Layer (1,L,) Gelatin layer containing an emulsified dispersion of 2.5-di-t-octylhydroquinone.

3rd layer: low sensitivity red-sensitive silver halide emulsion layer (RL-1) average grain size (r) 0.30 μm, A (116
Monodispersed emulsion (emulsion engineering) consisting of Ar+Brl containing mol%...Silver coating m 1.8o/1
2 Sensitizing dye ■...6X10-5 mol per mole of silver Sensitizing dye ■...1. OX 10-5
Morcian coupler (C-1)...0- per mole of silver
053 mol Colored cyan coupler (CG-1)...0.003 mol per mol of silver DIR compound (D-I)...0.0 per mol of silver
015 mol DIR compound (D-π)...0.0 per mol of silver
020 mole 4th floor! I: High sensitivity red-sensitive silver halide emulsion layer (RH-
1) Monodisperse emulsion (emulsion ■) consisting of AQ 3r I with an average grain size (F) of 0.5 μl and Ap of 17.0 mol %...silver coating fl 1.3 (J
/VN sensitizing dye ■...3X10-5 mol per mole of silver Sensitizing dye ■...1. OX10
"5 molesian coupler (C-1)...0.
02 mol Colored Cyan Cobra (CC-1)... 0.0015 mol per mol of silver DIR compound (D-'N)... 0.0015 mol per mol of silver
001 mole No. 51: Intermediate layer (1, L,') Same as the second layer, gelatin layer.

No. 68: Low-sensitivity green-sensitive silver halide emulsion layer (GL-1> Emulsion process...coated silver 11.5!It/12 sensitizing dye ■...2.5X 10' per mole of silver Molar sensitizing dye■...1.2X 10' per mole of silver
Mol magenta coupler (M-11...0.
044 mol Colored magenta coupler (CM-1): 0.004 mol per mol of silver DIR compound (D-IV): 0.04 mol per mol of silver
0010 mol DIR compound (D-V)...0.0 per mol of silver
030 moles 7th M: Highly sensitive green-sensitive silver halide emulsion layer (GH-1> Emulsion -■-...Coating silver m 1.4!J/f Sensitizing dye■
...1.5X ''l Q-5 mole per mole of silver, sensitizing dye IV...1.OX 1Q- per mole of silver
5 mol magenta coupler (M'-1)...0.012 mol per mol of silver Colored magenta coupler (CM-1)...0.002 mol DIR compound (D-VI )...o per mole of silver,
ooosmol No. 81Ii: Yellow Filter Single Layer (YC-1) Gelatin layer comprising yellow colloidal silver and an emulsified dispersion of 2,5-di-t-octylhydroquinone.

No. 911: Low sensitivity blue-sensitive silver halide emulsion layer (BL-1
) Average particle size 0.48μI! I, Au containing 16 mol% of Ag
Monodispersed emulsion (emulsion ■) consisting of Br1...silver coating amount 0.9i) /f
Coral dye V...1,3X 10-5 per mole of silver
Mol yellow coupler (Y-1) - 0 per mole of silver
, 14 mol 10th layer: Highly sensitive blue-sensitive emulsion layer (B)-1-1 > average grain size 0.8 μ + 11, Act 115 mol % A containing
! Monodispersed emulsion (emulsion ■) consisting of 1I8r I... Silver coating amount: 0.5 g /f Sensitizing dye V... 1.5 g/f per mole of silver. OX 1Q-5 mole yellow coupler (Y-1)...0 per mole of silver
．． 08 mol DIR compound (D-■)...0.0 per mol of silver
015 mole 11ffi! : First protective layer (Pro-1) silver iodobromide (
Ag11 mol% average particle size 0.01 μm) silver coating ff10
．． 5g/12 Gelatin layer containing UV absorbers LIV-1 and UV-2.

12th layer: Second protective layer (Pro-2> Gelatin layer containing polymethyl methacrylate particles (1.5 μm in diameter) and formalin scavenger (HS-1”) In addition to the above composition, each layer also contains gelatin. Hardening agent (H-1
) and surfactants were added.

The compounds contained in each layer of Sample 1-I are as follows.

Sensitizing dye: Anhydro 5,5'-dichloro-9-ethyl-3,3'-di(3-sulfopropyl)thiacarbocyanine hydroxide Sensitizing dye ■: Anhydro 9-ethyl-3,3-di (
3-sulfopropyl)-4,5,4”.

5'-Dibenzothiacarbocyanine hydroxide sensitizing dye ■: Anhydro 5.5--diphenyl-9-ethyl-
3,3-di(3-sulfopropyl)oxacarbocyanine hydroxide sensitizing dye ■: anhydro9-ethyl-3,3-di(3-sulfopropyl)-5,6,5
”.

6'-dibenzooxalupocyanine hydroxide sensitizing dye V: anhydro 3,3'-di(3-sulfopropyl)-4,5-benzo-5-methoxythiacyanine, margins C, H below.

M-1 (J' C! V-1 V-2 S-1 The film thickness of the emulsion surface of the sample prepared in this manner was set to m from 13 to 20 μm depending on the amount of gelatin contained. Table 1 shows the thickness of each layer.

The remaining 1 East-2- below indicates D-a (comparative DIP coupler) which indicates that it does not contain a DIR compound.After applying wedge exposure to each sample obtained in this way, it was developed in the following processing steps. I did it. Blue, Green, Red7 for each sample a) Lt
Measure the γ value using a blue, green
, Δγ values were determined when measuring with each Red filter.

The obtained results are the same (shown in Table 2).The Δγ value, which is an index of processing variability, is calculated by calculating the fluctuation value of γ when the pH of the color developer is adjusted to 10.2 in the following processing step using the following formula. It represents.

The processing steps described above are as follows.

This corresponds to high temperature rapid processing.

Treatment process (38℃) Coloring ring @ 3 minutes 15 seconds Bleach 6 minutes 30 seconds Water washing 3 minutes, 15 seconds constant
Arrive: Wash for 6 minutes and 30 seconds
Stable sea for 3 minutes and 15 seconds
The composition of the treatment liquid used in each treatment step was as follows.

[Color developer composition] 4-Amino-3-methyl-N-ethyl-N-(β-hydroxyethyl)-aniline, sulfate 4.750 Anhydrous sodium sulfite 4.25g Hydroxylamine, 1/2 sulfate 2. 0g Anhydrous potassium carbonate 37.517 Sodium bromide
1.3g Nitrilotriacetic acid trisodium salt (monohydrate) 2.5 Q Potassium hydroxide 0.5g Add water to make 12, and adjust to pH 10.0 using potassium hydroxide.

[Bleach solution composition] Ethylenediaminetetraacetic acid iron ammonium salt 100 (J ethylenediaminetetraacetic acid 2 ammonium salt 10.0 ()) Ammonium bromide 150.0 g Glacial acetic acid 10.0tj2 Add water to bring the pH to 12, and adjust the pH using ammonia water. =6.0.

[Fixer composition] Ammonium thiosulfate 162.0! I
+ (50% aqueous solution) Anhydrous sodium sulfite 12.4 G Add water to make 11 and adjust to pH=6.5 using acetic acid.

[Stabilized liquid composition] Formalin (37% aqueous solution) 5.0d Konidax (Konishiroku Photo Industry Co., Ltd. TFJ) 7.5. +
2 Add water to make 111.

Development processing was performed under the above conditions.

As is clear from the results in Table 2, the samples according to the present invention had smaller fluctuations in γ due to pH changes in the color developer than the comparative samples, and the effects of the present invention were fully exhibited. You can see that

[Effects of the Invention] As described above, the silver halide color light-sensitive material of the present invention is stable against changes in I)H of the color developing solution.

Patent applicant Konishiroku Photo Industry Co., Ltd. Procedural amendment March 31, 1986

Claims (1)

[Claims] A silver halide having a red-sensitive silver halide emulsion layer containing a cyan color-forming coupler, a green-sensitive silver halide emulsion layer containing a magenta color-forming coupler, and a blue-sensitive silver halide emulsion layer containing a yellow color-forming coupler on a support. In the color light-sensitive material, the total dry film thickness of all hydrophilic colloid layers on the side having the emulsion layer is 18 μm or less, and at least one of the emulsion layers has a diffusion layer formed by reaction with an oxidized product of a color developing agent. 1. A silver halide color light-sensitive material comprising a DIR compound that releases a compound capable of releasing a highly reactive development inhibitor or a precursor of a development inhibitor.