JPS61205937A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain high maximum density by incorporating a coupler having a specified ballast group so as to increase the solubility in a high b.p. org. solvent as an auxiliary color former. CONSTITUTION:A coupler having a ballast group represented by the formula (where A is a coupler residue, X is H or a group bonding to the coupler skeleton and eliminable by coupling with the oxidized product of a color developing agent, R1 is alkyl, chcloalkyl, aryl or the like, J is -CO- or -SO2-, and Y is -NHCO-, -NHSO2-or the like) is incorporated. Such a ballast group is applicable to a photographic processing agent which releases a development retarder or the like by a coupling reaction as well as to cyan, magenta and yellow image forming dyes. The coupler has high solubility in a high b.p. solvent, gives high maximum density, and is used in a color negative or positive film, color photographic printing paper or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a silver halide color photographic light-sensitive material containing a coupler having a ballast group. [Prior Art] In the field of photographic technology, images are generally formed by a coupling reaction between the development product of a silver halide developing agent (i.e., an oxidized primary aromatic amino developing agent) and a color-forming compound, commonly referred to as a coupler. Ru. The dye formed by the coupling is an indoaniline, azomethine, indamine or indophenol dye, depending on the chemical composition of the coupler and developing agent. In color photographic materials, subtractive color development is commonly used, and the resulting image-forming dyes are usually cyan, magenta and yellow dyes. These are the radiations absorbed by the image-forming dyes.
cation) is formed in or adjacent to a radiation-sensitive silver halide layer (ie, a silver halide emulsion sensitive to red, green, and blue radiation). Since this is a well-developed technology, a large body of patent and technical literature is known regarding compounds that can be used as couplers to form photographic images. Preferred couplers that react with oxidized color developing agents to form cyan dyes are phenols and naphthols. As a representative coloring agent, US Patent Nos. 2 and 7
No. 72,162, No. 2,895,826, No. 3,00
No. 2,836, No. 3,034,892, No. 2,474
, No. 293, No. 2,423,730, No. 2,367.
No. 531, No. 3,041,236, and “
Color forming agent - List of literature'' [Abufu Report, Volume ■, 156-1
75 (published in 1961)] etc. Preferred couplers that react with oxidized color developing agents to form magenta dyes are pyrazolones, pyrazolotriazoles, pyrazolobenzimidazoles and indasilones. This representative coupler is described in U.S. Pat.
No. 0,788, No. 2,369,489, No. 2,343
, No. 703, No. 2,311,082, No. 2,673.
No. 801, No. 3,152,896, No. 3,519,4
No. 29, No. 3.061,432, No. 3,062,6
No. 53, No. 3,725,067, No. 2,908,5
No. 73 specifications and ``Color forming agents - List of literature'' [published in Abfu report, Vol. 1, pp. 126-156 (1961)]. Couplers that form yellow dyes upon reaction with oxidized color developing agent are acylacetanilides, such as benzoylacetanilide and bivallylacetanilide. This representative coupler is described in U.S. Patent No. 2,875,0
No. 57, No. 2,407,210, No. 3.265,50
No. 6, No. 2,298,443, No. 3,048.1
No. 94, No. 3,447,928 specifications and “Color forming agent - List of literature” [Abufu Report, Volume 2, 112-426
(1961), as described in the presentation. Couplers that form black or achromatic dyes (neutra+ dye) upon reaction with oxidized color developing agents are also known. Typical couplers include resorcinol and ole-7minophenol, which are disclosed in, for example, U.S. Pat. No. 1,939,231;
No. 81,944, No. 2,333,106, No. 4,12
6.461 specifications and German Patent No. 2,64
4,194 and No. 2,650.764 and the like. Compounds are also known that react with oxidized color developing agents in the same manner as couplers, but do not form dyes. Compounds of this type modify photographic images by antagonizing dye-forming couplers for reaction with oxidized color developing agents or by releasing photographic processing agents such as development inhibitors as a result of the coupling reaction. used for Although many of these compounds are not commonly referred to as couplers, it is convenient to consider them as couplers in view of the similar manner in which they react during photographic processing. These compounds are considered couplers in the present invention. Typical couplers of this type are No. 3,632,345;
No. 3.928,041, No. 3,938,996, No. 3,958,993, No. 3,961,959, No. 4
, No. 010,035, No. 4,029,503, No. 4,
No. 046,574, No. 4,049,455, No. 4.0
No. 52.213, No. 4,063,950, No. 4,
No. 075,021, No. 4.121,934, No. 4,
No. 157,916, No. 4.171,223, No. 4,
186,012 and 4,187,110, British Patent Nos. 1,445,797, 1,504,094, 1,536,341 and 2,032,914
A specifications, German Patent Nos. 2,448,063, 2,552,505, 2', 610,546 and 2,617,310, and Belgian Patent No. 839, It is described in the specification of No. 083, etc. When couplers are incorporated into photographic elements, they are generally dispersed into the element with the aid of high boiling organic solvents called coloration aids. Couplers are made non-diffusive within photographic elements by containing groups in their molecules called ballast groups;
It also becomes compatible with the color development aid. This ballast group is present on the coupler at a position other than the coupling position and provides the coupler with sufficient bulk to make it non-diffusive to the photographic element upon which it is coated and during processing. It will be appreciated that the size and nature of the ballast group will depend on such things as the bulk of the coupler without the ballast group and whether other substituents are present on the coupler. Although a large number of couplers are known in the art, it is a constant challenge to improve or optimize the many properties of couplers and resulting dyes for particular applications. [Object of the Invention] An object of the present invention is to provide a silver halide color photographic light-sensitive material containing a coupler having a ballast group, which has significantly improved solubility in a high-boiling organic solvent as a color development aid. [Structure of the Invention] The above object of the present invention is achieved by providing a silver halide color photographic light-sensitive material containing a coupler having a ballast group represented by the following general formula [1]. General formula [I] In the formula, A represents a coupler residue; R9 represents an alkyl group, a cycloalkyl group, a bridged hydrocarbon compound residue, or an aryl group, J represents -C〇- or -8o2-, and Y represents -NHCO-1-CONH-
Or represents -NH8O. [Specific Structure of the Invention] The coupler residue represented by A in the general formula [I] is preferably a residue of a magenta coupler. What is represented by X-A- in the general formula [I] is more preferably represented by the following general formula [I[], [I[1] or [rV]
It is expressed as Below is the general formula for the margin [JT]! General formula [■] General formula [Katatsu general formula [V] In the formula, R2 is a halogen atom, an alkyl group, an alkel group,
Alkynyl group, cycloalkyl group, cycloalkenyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, phosphonyl group, carbamoyl group, sulfamoyl group, spiro compound residue, bridged hydrocarbon compound residue, alkoxy group, aryloxy group, heterocyclic oxy group, siloxy group, acyloxy group, carbamoyloxy group, amino group, acylamino group, sulfonamide group, imide group, ureido group, sulfamoylamino L alkoxycarbonylamino group, aryloxycarbonylamino group, It represents an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, etc., and R3 represents an alkylene group, an alkenylene group, an alkynylene group, a cycloalkylene group, a cycloalkenylene group, etc. In the general formulas [1r] to [1X], the halogen atom represented by Rλ includes, for example, a chlorine atom and a bromine atom, with a chlorine atom being particularly preferred. The alkyl group represented by R has 1 to 32 carbon atoms.
, alkenyl group, alkynyl group has 2 carbon atoms
-32, cycloalkyl groups, and cycloalkenyl groups preferably have carbon atoms of 13 to 12, particularly 5 to 7, and the alkyl, alkenyl, or alkynyl groups may be linear or branched. In addition, these alkyl groups, alkenyl groups, alkynyl groups, cycloalkyl groups, and cycloalkenyl groups are substituents [e.g., aryl, cyano, halogen atoms, heterocycles, cycloalkyl, cycloalkenyl, spiro compound residues, bridged hydrocarbon compounds] In addition to residues, those substituted through a carbonyl group such as acyl, carboxy, carbamoyllkoxycarbonyl, and aryloxycarbonyl, and those substituted through a heteroatom (specifically, hydroxy, alkoxy, and aryloxy , heterocyclic oxy, siloxy, acyloxy, carbamoyloxy, etc. substituted via an oxygen atom, nitro, amino (including dialkylamino, etc.), sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylaminoamino, sulfonamide , imide, ureido etc. substituted via nitrogen atom, alkylthio, arylthio, l
\terocycle substituted via a sulfur atom such as thio, sulfonyl, sulfinyl, and sulfamoyl, and substituted via a phosphorus atom such as phosphonyl)]. Specifically, for example, a methyl group, an ethyl group, an isopropyl group, a t-butyl group, a pentadecyl group, a heptadecyl group,
1-hexylnonyl group, 1.1'-dipentylnonyl group, 2-chloro-t-butyl group, trifluoromethyl group,
1-ethoxytridecyl group, 1-methoxyisopropyl group, methanesulfonylethyl group, 2.4-di-t-amylphenoxymethyl group, anilino group, 1-phenylisopropyl group, 3-m-butanesulfonaminophenoxyprobyl group , 3-4'-(α-[4''(1)-and drooxybenzenesulfonyl)phenoxy]dodecanoylamino)phenylpropyl group, 3-(4' (
α-2", 4"-di-t-amylphenoxy)butanamido]phenyl)-propyl group, 4-[α-(O-
Examples include chlorophenoxy)tetradecanamidephenoxypropyl group, allyl group, cyclopentyl group, and cyclohexyl group. The aryl group represented by R2 is preferably a phenyl group, and a substituent (for example, an alkyl group, an alkoxy group,
acylamino group, etc.). Specifically, phenyl group, 4-t-butylphenyl group, 2.4-di-t-amylphenyl group, 4-tetradecanamidophenyl group, hexadecyloxyphenyl group,
Examples include 4' [α-(4″-t-butylphenoxy)tetradecanamidophenyl group. The heterocyclic group represented by R2 is preferably a 5- to 7-membered one, and may be substituted. May be condensed.Specifically, 2-furyl group, 2-chenyl group, 2-
Examples include pyrimidinyl group and 2-benzothiazolyl group. Examples of the acyl group represented by R2 include acetyl group, phenylacetyl group, dodecanoyl group, α-2,4-
Examples thereof include alkylcarbonyl groups such as di-t-amylphenoxybutanoyl group, arylcarbonyl groups such as benzoyl group, 3-pentadecyloxybenzoyl group, and p-chlorobenzoyl group. Examples of the sulfonyl group represented by R2 include alkylsulfonyl groups such as methylsulfonyl group and dodecylsulfonyl group, and arylsulfonyl groups such as benzenesulfonyl group and p-toluenesulfonyl group. The sulfinyl group represented by R2 includes alkylsulfinyl groups such as ethylsulfinyl group, octylsulfinyl group, and 3-phenoxybutylsulfinyl group,
Examples include alkylsulfinyl groups such as octylsulfinyl group and 3-phenoxybutylsulfinyl group, and arylsulfinyl groups such as phenylsulfinyl group and m-bentatedylphenylsulfinyl group. The phosphonyl group represented by R2 includes an alkylphosphonyl group such as a butyloctylphosphonyl group, an alkoxyphosphonyl group such as an octyl A-oxyphosphonyl group, an aryloxyphosphonyl group such as a phenoxyphosphonyl group, and a phenylphosphonyl group. Examples include arylphosphonyl group. The carbamoyl group represented by R2 may be substituted with an alkyl group, an aryl group (preferably a phenyl group), etc. (for example, N-methylcarbamoyl, N,N-dibutylcarbamoyl, N-( Examples include 2-pentadecyloctylethyl)carbamoyl group, N-ethyl-N-dodecylcarbamoyl group, N-(3-(2,4-di[-amylphenoxy)propyl)carbamoyl group, etc. Sulfamoyl represented by R2 The group may be substituted with an alkyl group, an aryl group (preferably a phenyl group), etc., such as an N-propylsulfamoyl group, N, N
-diethylsulfamoyl group, N-(2-pentadecyloxyethyl)sulfamoyl group, N-ethyl-N-dodecylsulfamoyl group, N-phenylsulfamoyl group, and the like. Examples of the spiro compound residue represented by R2 include spiro[3,3]hebutan-1-yl and the like. Examples of the bridged hydrocarbon compound residue represented by R2 include bicyclo[2,2,1]hebutan-3,/7,-1-yl, tricyclo[3,3,1,IJacacyl-yl , 7,7-dimethyl-bicyclo[2,2,1
] Hebutan-1-yl and the like. The alkoxy group represented by R may be further substituted with the substituents listed above for the alkyl group, such as methoxy group, propoxy group, 2-ethoxyethoxy group, pentadecyloxy group, 2-dodecyl group. Examples include oxyethoxy group and phenethyloxyethoxy group. The aryloxy group represented by R2 is preferably a phenyloxy group, and the aryl nucleus may be further substituted with any of the substituents or atoms listed above for the aryl group, such as phenoxy group, pt-butyl, etc. Examples include phenoxy group and m-pentadecylphenoxy group. The heterocyclic oxy group represented by R is preferably one having a 5- to 7-membered heterocycle, and the heterocycle may further have a substituent, for example, 3.4, 5.6 -tetrahydrobilanyl-2-oxy group, 1-phenyltetrazole-5-oxy group, and the like. The siloxy group represented by R2 may be further substituted with an alkyl group, such as a trimethylsiloxy group, a triethylsiloxy group, a dimethylbutylsiloxy group, and the like. The acyloxy group represented by R2 includes, for example, an alkylcarbonyloxy group, an arylcarbonyloxy group, etc., and may further have a substituent, specifically an acetyloxy group, an α-chloroacetyloxy group,
Examples include benzoyloxy group. In the carbamoyloxy group represented by R2, an alkyl group, an aryl group, etc. may be replaced with lit, for example, N-
Examples include ethylcarbamoyloxy group, N,N-diethylcarbamo, yloxy group, and N-phenylcarbamoyloxy group. The 7-mino group represented by R2 is an alkyl group, an aryl group (
Preferably, it may be substituted with a phenyl group), etc., such as ethylamino group, anirim Ll-lyroloanilino group, 3-pentadecyloxylponylanirim L2-chloro-5-l\xadecanamide anilino group, etc. It will be done. The acylamino group represented by R2 includes an alkylcarbonylamino group, an arylcarbonylamino M (preferably a phenylcarbonylamino group), and may further have a substituent, specifically an acetamido group, an α
-ethylpropanamide group, N-phenylacetamide group, dodecanamide group, 2,4-di-t-amylphenoxyacetamide group, α-3-t-butyl-4-hydroxyphenoxybutanamide group, and the like. Examples of the sulfonamide group represented by R2 include an alkylsulfonylamino group and an arylsulfonylamino group, and may further have a substituent. Specific examples thereof include a methylsulfonylamino group, a bentadecylsulfonylamino group, an o-toluenesulfonamide group, and a 2-methoxy-5-t-amylbenzenesulfonamide group. The imide group represented by R2 may be open-chain or cyclic, and may have a substituent, such as a succinimide group, a 3-heptadecylsuccinimide group,
Examples include phthalimide group and glutarimide group. The ureido group represented by R2 may be substituted with an alkyl group, an aryl group (preferably a phenyl group), etc., such as an N-ethylureido group, an N-methyl-N-
Examples include decylureido LN-phenylureido group and Np-tolylureido group. The sulf7moylamino group represented by R2 may be substituted with an alkyl group, an aryl group (preferably a phenyl group), etc., such as an N,N-dibutylsulfamoylamino group, an N-methylsulfamoylamino group. , N-phenylsulfamoylamino group, and the like. The alkoxycarbonylamino group represented by R2 may further have a substituent, such as a methoxycarbonylamino group, a methoxyethoxycarbonylamino group, an octadecyloxycarbonylamino group, and the like. The aryloxycarbonylamino group represented by R2 may have a substituent, and examples thereof include a phenoxycarbonylamino group and a 4-methylphenoxycarbonylamino group. The alkoxycarbonyl group represented by R2 is further lt
It may have an f substituent, such as a methoxycarbonyl group, a butyloxycarbonyl group, a dodecyloxycarbonyl group, a rubonyl group, an octadecyloxycarbonyl group, an ethoxymethoxycarbonyloxy group, a benzyloxycarbonyl group, and the like. The aryloxycarbonyl group represented by R2 may further have a substituent, such as a phenoxycarbonylbonyl group and a haze-pentadecyloxyphenoxycarbonyl group. The alkylthio group represented by R2 may further have a substituent, for example, ethylthio group, dodecylthio group, octadecylthio group, phenethylthio group, 3-phene,
Examples include tsukidipropylthio group. The arylthio group represented by R is preferably a phenylthio group and may further have a substituent, such as a phenylthio group, p-methoxyphenylthio group, 2-t~octylphenylthio group, 3-octadecylphenylthio group, 2
-carpoxyphenyldio group, p-acetaminophenylthio group, etc. The heterocyclic thio group represented by R is preferably a 5- to 7-membered heterocyclic thio group, which may further have a condensed ring or a substituent. Examples include 2-pyridylthio group, 2-benzothiazolylthio group, and 2,4-diphenoxy-1,3,5-triazole-6-thio group. The alkylene group represented by R3 has 1 to 3 carbon atoms.
2, alkenylene groups and alkynylene groups preferably have 2 to 32 carbon atoms; cycloalkylene groups and cycloalkenylene groups preferably have 3 to 12 carbon atoms, particularly 5 to 7 carbon atoms; Alternatively, the alkynylene group may be linear or branched. In addition, these alkylene groups, alkenylene groups, alkynylene groups, cycloalkylene groups, and cycloalkenylene groups are substituents [e.g., aryl, cyano, halogen atom, petero ring, cycloalkyl, cycloalkenyl, spiro compound residue, bridged hydrocarbon compound In addition to residues, those substituted via a carbonyl group such as acyl, carboxy, carbamoyl 77 recoxycarbonylrbonyl, and those substituted via a heteroatom [specifically, anddroxy, alkoxy, aryloxy, Substituents via an oxygen atom such as heterocyclic oxy, siloxy, acyloxy, carbamoyloxy, nitrogen atom such as nitro, amine (including dialkylamino, etc.), sulfamoylaminonylaminoacylamino, sulfonamide, imide, ureido, etc. , those substituted via a sulfur atom such as alkylthio, arylthio, heterocyclic thio, sulfonyl, sulfinyl, sulf-1 moyl, etc., and those substituted via a phosphorus atom such as phosphonyl)]. You can leave it there. Specifically, methylene group, ethylene group, propylene group,
Examples include isopropylene group, pentadecylene group, and cyclohexylene group. The arylene group represented by R3 is preferably a phenylene group, which may have a substituent (eg, an alkyl group, an alkoxy group, an acylamino group, etc.). Specifically, phenylene group, benzylylene group, etc. can be mentioned. In the general formula [1], examples of the group that can be separated by the coupling reaction with the oxidized product of the color developing agent represented by For example, methoxy group, benzyloxy group, etc.), aryloxy group (for example, phenoxy group, 2-carboxy-4-nitrophenoxy group, p-nitrophenoxy group, etc.), acyloxy group (
For example, oxy group), alkylamino! s (for example,
Probilamim L diethylamino group, etc.), arylamino group (e.g. anilim Lp-hydro-mainly dianilino group, etc.), sulfonamide! ! (e.g., methylsulfonamide group, phenylsulfonamide group, etc.), sulfinamide group (e.g., phenylsulfinamide group, etc.), acylamino group (e.g., acetylamino benzoylamino group, etc.), alkylthio group (e.g., tetradecanethio group, benzylthio group, etc.), arylthio group (e.g., phenylthio group, 2-butoxy-5-octylphenylthio group, ρ nitrophenylthio group, etc.), alkylsulfinyl group (e.g., dodecylsulfinyl group, etc.), arylsulfinyl group (e.g. , phenylsulfinyl group, p-nitrosulfinyl group, etc.), heterocyclic group (e.g.
pyraziyl group, succinimide group, pyrrolinyl group, morphonylyl group, piperalidyl group, imidazolyl group, piperidinyl group, hydan-1-yl group, etc.), thiocyano group, and sulfo group W. X represented by the general formulas [Ti], [■] and [rV] has the same meaning as X represented by the above-mentioned general formula [General formula]. The alkyl group represented by R1 in the general formula LIE is preferably one having a carbon number of 1 to 20 and forming a linear, branched or ring, such as methyl group, j-propyl group, [-butyl group] groups, dodecyl groups, etc.
Examples of the cycloalkyl group include a cyclopendel group,
A bridged hydrocarbon compound residue such as a cyclohexyl group can include an adamantyl group. The aryl group represented by R1 preferably has 6 to 10 carbon atoms, and includes, for example, a phenyl group and a naphthyl group. Each of these alkyl groups and aryl groups may have a substituent, and examples of the substituent include a halogen atom (for example, a fluorine atom, a chlorine atom, a bromine atom, etc.), a cyano group, a hydroxyl group, an alkoxy group ( For example, methoxy group, ethoxy group, i-butoxy group, dodecyloxy group, etc.), aryloxy group (for example,
Phenoxy group, 2.4-di [-pentylphenoxy group, etc.), nitro group, amide L sulfo group, carboxy group,
Acylamino group (e.g., acetylamino group, benzoylamino group, etc.), sulfonamide group (e.g., methylsulfonamide group, octylsulfonamide group, benzenesulfonamide group, etc.), sulfamoyl group (e.g., methylsulfamoyl group, propyl sulfamoyl group, phenylsulfamoyl group, etc.), hydroxycarbonyl group, carbamoyl group, alkyloxycarbonyl group (e.g., ethoxycarbonyl group, etc.), aryloxycarbonyl group (e.g., phenoxycarbonyl group, etc.), alkylthio group, arylthio group, Examples include an alkylsulfonyl group, an arylsulfonyl group, and a dialkylamino group. It may have 2111 or more of these substituents,
In that case, the substituents may be the same or different. Among those represented by the general formula [I], particularly preferred are those having the following structure. Specific examples of couplers having a ballast group represented by the above general formula II are shown below, but the present invention is not limited thereto. CL t and L (20) CL Synthesis of Exemplary Compound (5) Reaction Scheme L (II) aoi-i'' t Synthesis of (I) 55.9g (0.20 mol) of 1-(2,4, 6
-trachloro)phenyl-pyrazolo-5-one to 560
Add 111ffl of lyacetonitrile and replace 20.2Q of pyridine. 38.2 g (0.20 mol) of toluenesulfonic acid chloride was added dropwise, and the reaction solution was poured into a 2-hour bale into 5 μg of water. Filter off the solid that precipitates. °001! Recrystallize Q from ethanol to obtain the desired product. Synthesis of (I) 21.61J (0.05 mol) of (I) was synthesized by 5ooJ
of acetonitrile and add 6.3 g of 3-nitro-isophthalic acid chloride. 1 hour later, reaction wave meter 2
Pour into water. The precipitated solid is collected by filtration and recrystallized with methanol to obtain the target product ε. Synthesis of (III) 9.8 g (0.01 mol) of (II) was added to 80 On, f
1 Ω of palladium-carbon (5
%) Add a food medium and hydrogenate at normal pressure. After filtering off the catalyst, the reaction solution is concentrated to about 10og+Q, and the precipitated crystals are collected by filtration to obtain the desired product. Synthesis of (V) 3, Oa (0,003 mol) (I
Dissolve in JJ tetrahydrofuran and make 1.0 (J
(0,003 mol) of (IV) is added dropwise. 5 of the reaction solution
001! Pour into 1 ml of water and extract with ethyl acetate. After concentration, it is recrystallized from acetonitrile to obtain the desired product. Synthesis of Exemplified Compound (5) 1.3 g (0,001 mol) of (V) is added to 50 ml of ethanol, and an aqueous solution containing 1.5 Q of sodium hydroxide is further added. After 2 hours, add hydrochloric acid to the reaction solution to neutralize it, and pour it into eoomu water. The precipitated crystals are collected by filtration and recrystallized from a mixture of ethyl acetate and hexane to obtain the desired product. The target product was confirmed by nuclear magnetic resonance absorption spectrum and mass spectrum. Other exemplified compounds having a melting point of 118 to 120°C can be synthesized in the same manner. The silver halide photographic material of the present invention can be, for example, color negative and positive films, color photographic paper, and the like. The silver halide color photographic light-sensitive material of the present invention can be, for example, color negative and positive films, color photographic paper, and the like. The silver halide color photographic light-sensitive material of the present invention may be one for monochrome use or one for multicolor use. In the case of multicolor silver halide photographic light-sensitive materials, in order to perform subtractive color reproduction, a silver halide emulsion layer containing magenta, yellow, and cyan couplers as photographic couplers and a non-light-sensitive silver halide emulsion layer are usually used as photographic couplers. Although it has a structure in which layers are laminated on a support in an appropriate number and order, the number and order of layers may be changed as appropriate depending on the important performance and the purpose of use. The silver halide emulsion used in the silver halide color photographic light-sensitive material of the present invention includes conventional halides such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, and silver chloride. Any of those used in silver emulsions can be used. The silver halide grains used in the silver halide emulsion of the present invention may be obtained by any of the acidic method, neutral method, ammonium, and moniac method. The particles may be grown all at once, or may be grown after seed particles are produced. The method of creating and growing the seed particles may be the same or different. In the silver halide emulsion, halogen ions and silver ions may be mixed simultaneously, or one of them may be mixed with the other. In addition, while considering the critical growth rate of silver halide crystals, we added halide ions and silver ions to
) may be produced by sequentially and simultaneously adding f and pAa while controlling them. After growth, a conversion method may be used to change the halogen composition of the particles. When producing the silver halide emulsion of the present invention, the grain size, grain shape, grain size distribution, and grain growth rate of silver halide grains can be controlled by using a silver halide solvent as necessary. The silver halide grains used in the silver halide emulsion of the present invention are prepared in the process of forming and/or growing the grains such as cadmium salt, zinc salt, lead salt, thallium salt, iridium salt or complex salt, rhodium salt or complex salt. Metal ions can be added to the interior of the particles and/or on the surface of the particles using iron salts or complex salts, and can be reduced to the interior of the particles and/or on the surface of the particles by placing them in an appropriate reducing atmosphere. Can provide sensitizing nuclei. In the silver halide emulsion of the present invention, unnecessary soluble salts may be removed after the growth of silver halide grains is completed, or they may be left contained. In the case of removing the salts, it can be carried out based on the method described in Research Disclosure No. 17643. The silver halide grains used in the silver halide emulsion of the present invention may consist of a uniform layer inside and on the surface, or
It may consist of different layers. The silver halide grains used in the silver halide emulsion of the present invention may be grains in which a latent image is mainly formed on the surface, or grains in which a latent image is mainly formed inside the grains. The silver halide grains used in the silver halide emulsion of the present invention may have a regular crystal shape or may have an irregular crystal shape such as a spherical shape or a plate shape. In these particles, any ratio of [1,0,01 planes to [1,1,1] planes 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 silver halide emulsion of the present invention may be a mixture of two or more separately formed silver halide emulsions. The silver halide emulsion of the present invention is chemically sensitized by a conventional method. That is, compounds containing sulfur that can react with silver ions,
A sulfur sensitization method using activated gelatin, a selenium sensitization method using a selenium compound, a reduction sensitization method using a reducing substance, a noble metal sensitization method using gold or other noble metal compounds, etc. can be used alone or in combination. The silver halide emulsion of the present invention can be optically sensitized to a desired wavelength range using a dye known as a sensitizing dye in the photographic industry. 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. Also good. The silver halide emulsion of the present invention includes steps for producing light-sensitive materials,
For the purpose of preventing fog during storage or photographic processing and/or keeping photographic performance stable, silver halide emulsions are used during and/or at the end of chemical ripening, and/or after the end of chemical ripening. Compounds known in the photographic industry as antifoggants or stabilizers can be added prior to coating. Gelatin is advantageously used as a binder (or protective colloid) for the silver halide emulsion of the present invention, but
In addition, hydrophilic colloids such as gelatin derivatives, graft polymers of gelatin and other polymers, proteins, sugar derivatives, cellulose derivatives, and synthetic hydrophilic polymer substances such as single or copolymers can also be used. The photographic emulsion layer and other hydrophilic colloid layers of the silver halide color photographic light-sensitive material of the present invention can be hardened by using a hardening agent alone or in combination to crosslink binder (or protective colloid) molecules and increase film strength. be done. It is desirable to add the hardening agent in an amount that can harden the photosensitive material to the extent that it is not necessary to add the hardening agent to the processing solution, but it is also possible to add the hardening agent to the processing solution. A plasticizer can be added for the purpose of increasing the flexibility of the silver halide emulsion layer and/or other hydrophilic colloid layer of the silver halide color photographic light-sensitive material of the present invention. The photographic emulsion layer and other hydrophilic colloid layers of the silver halide color photographic light-sensitive material of the present invention may contain a dispersion (latex) of a water-insoluble or poorly soluble synthetic polymer for the purpose of improving dimensional stability. . In the emulsion layer of the silver halide color photographic light-sensitive material of the present invention, an aromatic primary amine developer (
For example, a dye-forming coupler is used that forms a dye by performing a coupling reaction with an oxidized product of p-phenylenediamine derivatives, aminephenol derivatives, etc.). The dye-forming couplers are typically selected such that for each emulsion layer a dye is formed that absorbs light in the light-sensitive spectrum of the emulsion layer, and a yellow dye-forming dye is formed for the blue light-sensitive emulsion layer. A magenta dye-forming coupler is used in the green light-sensitive emulsion layer, and a cyan dye-forming coupler is used in the red light-sensitive emulsion layer. However, depending on the purpose, silver halide color photographic materials may be produced using different combinations from the above. As the yellow dye-forming coupler, acylacetamide couplers (e.g., benzoylacetanilides, Vivarro!ruacetanilides), and as the magenta dye-forming coupler, couplers represented by the general formula [T] can be particularly preferably used, In addition to the couplers of the present invention, there are 5-pyrazolone couplers, pyrazolopenzimidazole couplers, pyrazolotriazoles, open-chain acylacetonitrile couplers, and cyan dye-forming couplers such as naphthol couplers and phenol couplers. Further, a colored coupler having a color correction effect or a development inhibitor-releasing coupler may be used in combination, if necessary. When the coupler of the present invention is added to a silver halide emulsion layer, it is usually added in an amount of o, oos to 2 mol, preferably 0.03 to 0.5 mol, per mol of silver halide. For hydrophobic compounds such as dye-forming couplers that do not need to be adsorbed onto the silver halide crystal surface, various methods such as solid dispersion, latex dispersion, and oil-in-water emulsion dispersion can be used. It can be appropriately selected depending on the chemical structure of the hydrophobic compound. The oil-in-water emulsion dispersion method can be applied using conventionally known methods for dispersing hydrophobic additives such as couplers.1 Usually, a high boiling point organic solvent with a boiling point of about 150°C or higher is mixed with a low boiling point and/or Dissolve using a water-soluble organic solvent, emulsify and disperse using a surfactant in a hydrophilic binder such as an aqueous gelatin solution using a dispersion means such as a stirrer, homogenizer, colloid mill, flow jet mixer, or ultrasonic device. After that, it may be 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 organic solvents include phenol derivatives, phthalates, phosphorus esters, citric esters, benzoic esters, alkylamides, fatty acid esters, trimesic esters, etc. that do not react with the oxidized form of the developing agent. Organic r8fJX is used. Anionic surfactants and nonionic surfactants are used as dispersion aids when hydrophobic compounds are dissolved in a low boiling point solvent alone or in combination with a high boiling point solvent and dispersed in water using mechanical or ultrasonic waves. , cationic surfactants can be used. The oxidized form of the developing agent or the electron transfer agent may migrate between the emulsion layers (between the same color-sensitive layers and/or between different color-sensitive layers) of the silver halide color photographic light-sensitive material of the present invention, causing color turbidity. A color anti-capri agent is used to prevent deterioration of sharpness and noticeable graininess. The color antifoggant may be used in the emulsion layer itself, or in an intermediate layer provided between adjacent emulsion layers. The silver halide color photographic light-sensitive material of the present invention can contain an image stabilizer that prevents deterioration of the dye image. A UV absorber is added to the hydrophilic colloid layers such as the protective layer and intermediate layer of the photosensitive material of the present invention in order to prevent capri due to discharge caused by charging of the photosensitive material due to friction, etc., and to prevent image deterioration due to UV light. It may be included. The silver halide color photographic light-sensitive material of the present invention may include auxiliary layers such as a filter layer, an antihalation layer and/or an antiirradiation layer. These layers and/or the emulsion layer may contain dyes that flow out of the color light-sensitive material or are bleached during development. A matting agent is added to the silver halide emulsion layer and/or other hydrophilic colloid layer of the silver halide color photographic light-sensitive material of the present invention to reduce the gloss of the light-sensitive material, increase the ease of writing, and prevent the light-sensitive materials from sticking together. can be added. A lubricant can be added to reduce the sliding friction of the silver halide color photographic light-sensitive material of the present invention. An antistatic agent for the purpose of preventing static electricity can be added to the silver halide color photographic light-sensitive material of the present invention. Antistatic agents are sometimes used in the antistatic layer on the side of the support on which the emulsion is not laminated, or they are used to protect the emulsion layer and/or the emulsion layer on the side of the support other than the emulsion layer on which the emulsion layer is laminated. It may also be used in a colloid layer. The photographic emulsion layer and/or other hydrophilic colloid layer of the silver halide color photographic light-sensitive material of the present invention may be used to improve coating properties, prevent static electricity, improve slipperiness, emulsification dispersion, prevent adhesion, and (promote development, increase contrast, Various surfactants are used for the purpose of improving photographic properties (such as sensitization). The silver halide color photographic light-sensitive material of the present invention has a photographic emulsion layer, and other layers include a baryta layer or a flexible reflective support such as paper laminated with an α-olephne polymer, synthetic paper, cellulose acetate, cellulose nitrate, It can be applied to films made of semi-synthetic or synthetic polymers such as polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, and polyamide, as well as rigid bodies such as glass, metal, and ceramics. The silver halide color photographic light-sensitive material of the present invention can be produced by subjecting the surface of the support to corona discharge, ultraviolet irradiation, flame treatment, etc. as necessary, and then directly or (adhesiveness, antistatic property, dimensional stability of the support surface) properties, abrasion resistance, hardness, antihalation properties, friction properties and/or other properties.
It may be applied via one or more subbing layers). When coating a photographic light-sensitive material using the silver halide emulsion of the present invention, a thickener may be used to improve coating properties. Particularly useful coating methods are ex-doulsion coating and curtain coaching, which allow two or more layers to be applied simultaneously. The light-sensitive material of the present invention can be exposed using electromagnetic waves in a spectral region to which the emulsion layer constituting the light-sensitive material of the present invention is sensitive. Light sources include natural light (sunlight), tungsten electric lamps, fluorescent lamps, xenon arc lamps, carbon arc lamps,
xenon flash lamp, cathode ray tube flying spot,
Various laser lights, light emitting diode lights, electron beams, X-rays, γ
Any known light source can be used, such as light emitted from a phosphor excited by rays, alpha rays, or the like. Exposure times include not only exposure times of 1 millisecond to 1 second commonly used in cameras, but also exposure times shorter than 1 microsecond, such as exposure times of 100 microseconds to 1 microsecond using cathode ray tubes and xenon flash lamps.
Microsecond exposures can be used, and exposures longer than 1 second are also possible. The exposure may be performed continuously or intermittently. The silver halide photographic material of the present invention can be used to form an image by color development as known in the art. The aromatic primary amine color developing agents used in the color developing solution of the present invention include known ones that are widely used in various color photographic processes. These developers include aminophenol and p-phenylenediamine derivatives. These compounds are generally used in the form of salts, such as hydrochlorides or sulfates, since they are more stable than in the free state. In addition, these compounds are generally used in color developing solution 1. ! Concentrations of about 0.1 g to about 30 g for Q, preferably color developer 1! A concentration of about 1 g to about 1.5 g of Q is used. Examples of aminophenol-based developers include 0-aminophenol, p-aminophenol, 5-amino-2-
Oxytoluene, 2-amino-3-oxytoluene, 2
-oxy-3-amino-1°4-dimethylbenzene and the like. Particularly useful primary aromatic amino color developers are N, N'
-Dialkyl-p-phenylenediamine compound, and the alkyl group and phenyl i may be substituted with any substituent. Among them, examples of particularly useful compounds include N,N'-diethyl-p-phenylenediamine hydrochloride, N-methyl-p-phenylenediamine hydrochloride, N,
N'-dimethyl-p-phenylenediamine salt [1,2
-amino-5-(N-ethyl-N-dodecylamino)-
Toluene, N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate, N-
Ethyl-N-β-hydroxyethylaminoaniline, 4
-amino-3-methyl-N. N'-diethylaniline, 4-amino-N-(2-methoxyethyl)-N-ethyl-3-methylaniline-p-
Examples include toluene sulfonate. In addition to the above-mentioned primary aromatic amine color developer, the color developer used in the process of the present invention further contains various components that are normally added to color developers, such as sodium hydroxide and sodium carbonate. , alkaline agents such as potassium carbonate, alkali metal sulfites, alkali metal bisulfite salts, alkali metal thiocyanates, alkali metal halides, benzyl alcohol, water softeners, thickeners, etc. may be optionally contained. can. The pH value of this color developer is usually 7 or higher, most commonly about 10 to
It is about 13. In the present invention, after color development processing, processing is performed with a processing solution having fixing ability (for example, a fixing solution, a bleach-fixing solution).
When the processing liquid having the fixing ability is a fixing liquid, a bleaching process is performed beforehand. As the bleaching agent used in the bleaching step, a metal complex salt containing Ra is used, and the metal complex salt has the effect of oxidizing the metallic silver produced by development and converting it into silver halide, and at the same time coloring the uncolored part of the coloring agent. Its composition is aminopolycarboxylic acid or oxalic acid,
Metal ions such as iron, cobalt, and copper are coordinated with organic acids such as citric acid. The most preferred organic acids used to form such metal complexes of organic acids include polycarboxylic acids or aminopolycarboxylic acids. These polycarboxylic acids or aminopolycarboxylic acids may be alkali metal salts, ammonium salts or water-soluble amine salts. Specific representative examples of these include the following. [1] Ethylenediaminetetraacetic acid [2] Nitrilotriacetic acid [3] Iminodiacetic acid [4] Ethylenediaminetetraacetic acid disodium salt [5J Ethylenediaminetetraacetic acid tetra(trimethylammonium) salt] [6] Ethylenediaminetetraacetic acid tetrasodium salt [7] Nitrilotriacetic acid Bleaching solutions and bleach-fixing solutions that use sodium salts contain the above-mentioned metal complex salts of organic acids as bleaching agents, and can also contain various additives. As additives, it is particularly desirable to include rehalogenating agents, metal salts, and chelating agents such as alkali halides or ammonium halides, such as potassium bromide, sodium bromide, sodium chloride, and ammonium bromide. In addition, pH l agents such as borates, oxalates, acetates, carbonates, and phosphates, alkylamines, polyethylene oxides, and other substances known to be added to ordinary bleaching solutions and bleach-fixing solutions are added as appropriate. be able to. Furthermore, the fixer and bleach-fixer contain ammonium sulfite,
Sulfites such as potassium sulfite, ammonium bisulfite, potassium bisulfite, sodium bisulfite, ammonium metabisulfite, potassium metabisulfite 2, sodium metabisulfite, boric acid, borax, sodium hydroxide, potassium hydroxide, sodium carbonate, It may contain one or more pHllIi agents consisting of various salts such as potassium carbonate, sodium bisulfite, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate, and ammonium hydroxide. When carrying out the process of the present invention while replenishing the bleach-fix solution (bath) with a bleach-fix replenisher, the bleach-fix solution (bath) may contain thiosulfate, thiocyanate, sulfite, etc. These salts may be added to the bleach-fixing replenisher to replenish the processing bath. In the present invention, in order to increase the activity of the bleach-fix solution, air or oxygen may be blown into the bleach-fix solution and the bleach-fix replenisher storage tank, or an appropriate oxidizing agent may be used. For example, hydrogen peroxide, bromate, perika salt, etc. may be added as appropriate. [Examples] Next, the present invention will be specifically explained using Examples, but the present invention is not limited thereto. [Example 1] A coupler of the present invention and a comparative coupler as shown in Table 1 were each taken in an amount of 0.1 mol per mol of silver, and an amount of 1 times the weight of the coupler or 0.6 times the weight of the coupler was taken. Tricresyl phosphate (high boiling point organic solvent) and three times the amount of ethyl acetate were added and heated to 60°C to completely dissolve. This solution was mixed with alkanol B (alkylnaphthalene sulfonate,
The mixture was mixed with 12oocQ of a 5% gelatin aqueous solution containing 12oraU of 5% aqueous solution (manufactured by DuPont) and emulsified and dispersed using ultrasonic dispersion to obtain an emulsion. Thereafter, this dispersion was mixed into a green-sensitive silver iodobromide emulsion (containing 6 mol % of silver iodide) 4k. and a 2% solution of 1,2-bis(vinylsulfonyl)ethane (water:methanol-1:1) as a hardening agent.
Samples 1-1 to 1-9 were prepared by adding 0Ill and Q, coating on a subbed transparent polyester base, and drying. (Amount of silver coated: 20 mg/100 cm2) After performing wedge exposure on the sample thus obtained according to a conventional method,
Table 1 shows the results of the following development treatments. [Development processing step 1 Color developing solution Bleaching at 38℃ for 3 minutes and 15 seconds
Liquid Wash with water for 4 minutes 20 seconds Fix for 3 minutes 15 seconds
Wash with water for 4 minutes and 20 seconds
Stable liquid for 3 minutes 15 seconds
Dry for 1 minute and 30 seconds 4
7°C±55°C 16 minutes 30 seconds The composition of the processing liquid used in each processing step is as follows. [Color developer composition: Charcoal potassium 30 g Sodium bicarbonate 2.5 g Potassium sulfite 5 g Sodium bromide
:, potassium trisiodide
2 mg hydroxylamine sulfate
2.50 Sodium chloride O,G
,J Sodium diethylenetriaminepentaacetate 2.5g4-amino-3-methyl-N-ethyl-N-(β-hydroxyethyl)aniline v1 salt 4.8 iJ
Potassium hydroxide 1.29 Add water to make 1" and adjust to pH 1 (3.06) using potassium hydroxide or 20% sulfuric acid. [Bleach solution composition] Ethylenediaminetetraacetate iron ammonium salt 100g Ethylenediaminetetra #R 10g Ammonium bromide 150 Q Glacial acetic acid 4Q IIIJ Sodium bromate 10 Q Add water and make 1
3 and using ammonia water or glacial acetic acid.
,5. [Fixer composition Ammonium cothiosulfate 180g Anhydrous sodium sulfite 12 Q Metabioxide 1a
Sodium acid 2.5g Disodium ethylenediaminetetraacetate 0.5Q Sodium carbonate 109 Add water to make C1. [Stabilizing liquid composition] Formalin (31% aqueous solution) 2-Conidax [15I manufactured by Konishiroku Photo Industry Co., Ltd. Adding primary water for 1 y
shall be. Table 1 below (1) Specific yield coupler (IJ's maximum thickness FyL is expressed as 1 (30) and other couplers maximum and maximum are expressed in relative usage (%). (2)) i: High boiling point organic Completion, C: Coupler (constant molar trid, H/C = 1.0 and H/C = 0.
Which one is better than 6? There are few Lo addition organic f&sodo. Comparative coupler (1) Ct Comparative coupler (2) (Compound disclosed in English tFf Meter No. 1,398,979) From the results in Table 1, it can be seen that the coupler of the present invention is a high-boiling organic compound that is a coloring aid. It can be seen that the solubility in solvents is good and a high maximum concentration can be obtained. [Example 21 Samples 1-1 to 1-9 in Example 1 were similarly exposed to wedge light and subjected to the following development treatment. These results are shown in Table 2. The maximum concentration ratio was measured by the same method as in Example-1. [Development process Color development 38℃ 3 minutes 30 seconds Bleach constant @
33℃ 1 minute 30 seconds stabilization treatment/or water washing treatment 25-30℃ 3 minutes drying
75-80°C for 2 minutes The composition of the treatment liquid used in each treatment step is as follows. [Color developer] Benzyl alcohol 15I! Noethylene glycol 15ray Potassium sulfite 2. Og potassium bromide
o, yg sodium chloride
0.20 potassium carbonate
30.0 g hydroxylamine sulfate
3.0g polyphosphoric acid (TPPS)
2.5g3-Methyl-4-amino,/N-edyl: ＼(β-methanesulfonamido!ethyl)-aninon＠Kaishio 5.5gl (co-conversion)] Lium 2.0g Add water The entire amount was used as one sample, and the pH was adjusted to 10.20. [Bleach-fix solution] Ferric ammonium ethylenediaminetetraacetate dihydrate 600 ethylenediaminetetraacetic acid 3g ammonium thiota (70% solution > 1od ammonium sulfite)
40% solution) 27.5 d Adjust to H7.1 with potassium carbonate or glacial acetic acid and add water to bring the total volume to 1ρ. [Stabilizing liquid 5-chloro-2-methyl-4=isothiazolin-3-one 1.0 g Ethylene glycol 10 g or less Margin Table 2 From the results in Table 2, samples 2-3 to 2 containing the coupler of the present invention
It can be seen that No. 2-9 has good solubility in high boiling point organic solvents and can obtain a higher maximum concentration than the comparative sample. [Example-3 By applying an aqueous gelatin solution containing the compounds shown in Table 3 on a cotriacetyl cellulose support,
! A multilayer silver halide photosensitive material consisting of (lowest layer) to 11th layer (top layer) was produced. In addition to the compounds shown in Table 3, a surfactant and a gelatin hardener were added to each layer. This is designated as sample (3-1). Samples (3-2) to (3-9) were prepared in the same manner as sample (3-1) except that the magenta coupler contained in the sixth layer of sample (3-1) was changed as shown in Table 4. was created. After each sample was wedge exposed in a conventional manner, the following development treatment was performed. The results are shown in Table 4. In addition,
The maximum srx ratio was measured by the same method as in Example-1. [Processing process (38°C)] Processing time 1st development 6 minutes 1st washing
2 minute inversion
2 minute color development
6 participle
6 minute bleach
Fixed for 6 minutes
4 minutes final wash, 4 minutes stable
The composition of the treatment liquid used in each 30 second treatment step is as follows. 1st development Coni 1-Relow N,N,N-trimethylenephosphonic acid pentasodium salt aqueous solution (45%) 101IIj Potassium sulfite dihydrate 35.01; 1 Sodium bromide 2.2g Sodium thiocyanate 1. OQ potassium iodide
4.5B potassium hydroxide
4.5g diethylene glycol 12
．． 0I11. &1-Phenyl-4-hydrooxymethyl-3-lazolidone 1.5g Anhydrous potassium carbonate 14.0 (Sodium bicarbonate 12.0g Potassium hydroquinone sulfonate 22.OQ Add water to make 1p, p)l
Adjusted to 9,6. [Reversal liquid] BuO pion y1 12. oJ Anhydrous stannous chloride 1.59 para-aminophenol 0.5B Sodium hydroxide
5.0g nitrilo-N,N,N-trimethylenephosphonic acid pentasodium salt aqueous solution (45%)15. Add OIl, c water and 1
β and adjusted to o H5,8. [Color developer] Nitrilo-N,N,N-trimethylenephosphonic acid pentasodium salt aqueous solution (45%>s, od phosphoric acid <85%) 7.0 Frog Sodium Bromide 007g Potassium iodide 30.01 (1 Potassium hydroxide 20.OQ citradinic acid
1.3g 4-Amino-N-ethyl-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate 11. Ogl, 8-
Add 1.0 g of hydroxy-3,6-cythiaoctane water to make 1 volume and adjust to 1) H1.7. [Adjustment solution] Potassium sulfite 15.017 Ethylenediaminetetraacetic acid 8, OQα-monothioglycerol o, sd Add water to make 1p, p
Adjust to H6.2. [Bleach solution] Potassium nitrate 25. OQ potassium bromide 80゜og ethylenediaminetetraacetate iron(II) Ammonium 110.0 (J hydrobromic acid 3o, omJ ethylenediaminetetraacetic acid M4゜Og Add water and leave overnight to adjust pH to 5.7 [Fixer ] Ammonium thiosulfate ss, og ethylenediaminetetraacetic acid disodium 0.8g Sodium metabisulfite 7.5g Sodium hydroxide
Add 1.5g of water and leave overnight to adjust pH to 6.
, adjusted to 6. [Stabilizing solution] Formalin (35%> 6.omi Conidax (manufactured by Konishi Roku Photo Industry Co., Ltd.) Add 1°sJ water to make 1". See table 3 in the margin below. Y coupler M coupler (comparison coupler 1) C coupler Table 4 From the results shown in Table 4, it can be seen that the coupler of the present invention has high solubility in high boiling point organic solvents and can obtain a higher maximum concentration than the comparative sample. [Example-4] Example-1 A sample was prepared in the same manner as in Example 1, except that the high boiling point organic solvent in was replaced with dioctyl phthalate, and exposed and developed in the same manner as in Example 1. The results are shown in Table 5. Table 5 f: From the results in Table IS5, it can be seen that the couplers of the present invention have high solubility and a high maximum concentration can be obtained even when the high boiling point organic solvent is changed.

Claims (1)

[Scope of Claims] A silver halide color photographic light-sensitive material characterized by containing a coupler having a ballast group represented by the following general formula [I]. General formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, A represents a coupler residue, X is bonded to the coupler core, and performs a coupling reaction with the oxidized form of the color developing agent. R_1 represents an alkyl group, cycloalkyl group, bridged hydrocarbon compound residue or aryl group, J represents -CO- or -SO_2-, Y represents -NHCO-, -CON
Represents H- or -NHSO_2-.