JP2866905B2 - Silver halide photographic material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention has good spectral absorption characteristics, excellent color reproducibility,
Further, the present invention relates to a silver halide photographic material which forms a dye image having excellent storage stability.

BACKGROUND OF THE INVENTION In a silver halide photographic light-sensitive material used for direct viewing, particularly in a color photographic paper, a combination of a yellow coupler, a magenta coupler and a cyan coupler is usually used as a coupler for forming a coloring dye. I have.

And, with the progress of silver halide photographic materials,
Although the demands on coupler performance are becoming increasingly strict, as a specific measure for improving color reproducibility, the color tone of the dye itself has been developed by developing a coupler with a sharp visible absorption spectrum waveform for the formed dye. Can be cleared.

Among the phenolic cyan couplers used in color photographic paper and the like for direct viewing, 2,5-diacylamino cyan couplers are well known as cyan couplers having excellent dark fading properties. The dye formed from the coupler has a maximum absorption wavelength on the short wavelength side as compared with a dye formed from a phenolic cyan coupler having no sialamino group at the 5-position, which has been generally used in the past, and the secondary absorption around 550 nm. There is a disadvantage that vivid green reproduction cannot be sufficiently performed due to large absorption.

As a result of much research and development on phenolic cyan couplers, improvement in color reproducibility was also observed with phenolic cyan couplers having an alkyl group having 2 or more carbon atoms at the 5-position.

On the other hand, although the research and development of yellow couplers has been continued, there has not yet been obtained a color coupler that satisfies both color reproducibility and light stability such as light fastness from the viewpoint of the sharpness of the visible absorption spectrum waveform. However, even when the cyan coupler is used, there is a problem that sufficient color reproducibility cannot be obtained for hues such as red, green and yellow.

As described above, a silver halide photographic material excellent in overall color reproducibility for all hues has not been found yet.

[Object of the Invention] An object of the present invention is to provide a silver halide photographic light-sensitive material which forms a dye image having good spectral absorption characteristics, excellent color reproducibility, and excellent storage stability.

[Constitution of the Invention] The object of the present invention is to provide a halogen having a photographic component layer including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support. In a silver halide photographic light-sensitive material, the red-sensitive silver halide emulsion layer contains a cyan coupler represented by the following general formula [C-I], and the blue-sensitive silver halide emulsion layer contains This is achieved by a silver halide photographic material containing a yellow coupler represented by the general formula [Y-I].

[In the formula, R ₁ represents an alkyl group having 2 to 6 carbon atoms. R ₂ represents a ballast group. R ₃ represents a hydrogen atom, a halogen atom or an alkyl group. X ₁ represents a hydrogen atom or a group capable of leaving by reaction with an oxidized form of a color developing agent. ] Wherein R _A and R _B are an alkyl group, a cycloalkyl group,
Or an aryl group. X _A represents an acylamino group or a sulfonylamino group. Z _A represents a group capable of leaving by reaction with an oxidized form of the color developing agent represented by the general formulas [Y-II] and [Y-III].

[Wherein, R _C and R _D represent a hydrogen atom or a substituent;
Is (Wherein, _RG represents a hydrogen atom or a substituent, and p represents an integer from 0 to 2). ] Wherein R _E and R _F represent a hydrogen atom or a substituent;
Represents -O- or -S (O) _r- . r represents an integer from 0 to 2. ] [Specific Configuration of the Invention] In the cyan coupler represented by the general formula [C-I] according to the present invention, the ballast group represented by R ₂ is used to substantially convert the coupler from the layer to which the coupler is applied. Organic groups having a size and shape sufficient to provide the coupler molecules with sufficient bulk to prevent diffusion into other layers. Representative ballast groups include alkyl or aryl groups having from 8 to 32 total carbon atoms. These alkyl groups and aryl groups may have a substituent,
Examples of the substituent of the aryl group include an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a carboxy group, an acyl group, an ester group, a hydroxy group, a cyano group,
Nitro group, carbamoyl group, carbonamido group, alkylthio group, arylthio group, sulfonyl group, sulfonamido group, sulfamoyl group, halogen atom and the like, and as a substituent of the alkyl group, the above-mentioned aryl group except the alkyl group The substituents mentioned above are exemplified.

Preferred as the ballast group are those represented by the following general formula.

R 'represents an alkyl group having 1 to 12 carbon atoms, Ar represents an aryl group such as a phenyl group, and the aryl group may have a substituent. Examples of the substituent include an alkyl group, a hydroxy group, and an alkylsulfonamide group, and the most preferred is a branched alkyl group such as a t-butyl group.

In the general formula [CI], a chlorine atom is preferable as the halogen atom represented by R ₃ .

The alkyl group represented by R _3, for example, methyl, ethyl, i- propyl group.

Also in the general formula [CI], the alkyl group having 2 to 6 carbon atoms represented by R ₁ is, for example, an ethyl group, a propyl group, or a butyl group, and these groups may be linear or branched.

In the general formula [C-I], the group capable of leaving by reaction with an oxidized form of the color developing agent represented by X ₁ includes a chlorine atom, a halogen atom represented by a fluorine atom, an aryloxy group, a substituted or Unsubstituted alkoxy group, acyloxy group, sulfonamide group, arylthio group, heteroylthio group, heteroyloxy group, sulfonyloxy group,
And a carbamoyloxy group.

Next, specific examples of the cyan coupler represented by the general formula [CI] will be shown.

The cyan coupler represented by the general formula [C-I]
For example, JP-A-47-37425, JP-A-50-10135, and JP-A-502522
No. 8, No. 50-112038, No. 5-117422, No. 50-130441
No. 2,369,929, U.S. Pat.No. 2,423,730, U.S. Pat.
No. 434,272, No. 2,474,293, No. 2,698,794, No.
No. 2,895,826, JP-A-50-112038, JP-A-53-109630,
No. 55-163537, U.S. Patent No. 3,772,002, No. 4,443,5
No. 36, the number of carbon atoms in the 5-position described in each publication is 2
It contains a phenolic cyan coupler having an alkyl group of 6, and can be easily synthesized by the methods described in these publications.

The cyan coupler of the present invention can be used in combination of two or more kinds, and can be used in combination with another kind of cyan coupler.

The cyan coupler of the present invention is used in a red-sensitive silver halide emulsion layer, and the addition amount thereof is 2 × 10 ^-3 to 8 × 10 ^-1 mol, preferably 1 × 10 ^-2 mol, per mol of silver halide. ~ 5
× 10 ^-1 mol.

Next, the yellow coupler represented by the general formula [Y-1] will be described.

In the general formula [Y-I], examples of the alkyl group represented by R _A and R _B include a linear or branched alkyl group such as a methyl group, an ethyl group, an isopropyl group, a t-butyl group, and n-dodecyl. Group, and a 1-hexylnonyl group. Examples of the cycloalkyl group represented by R _A and R _B include a cyclopropyl group, a cyclohexyl group, and a adamantyl group. The alkyl group and cycloalkyl group represented by R _A and R _B can further have a substituent, for example, a halogen atom (eg, a chlorine atom, a bromine atom, etc.), an aryl group (eg, phenyl Group, pt-octylphenyl group, etc.), alkoxy group (eg, methoxy group, etc.), aryloxy group (eg, 2,4-di-t-amylphenoxy group, etc.), sulfonyl group (eg, methanesulfonyl group, etc.), Examples include an acylamino group (eg, acetyl group, benzoyl group, etc.), a sulfonylamino group (eg, n-dodecanesulfonylamino group, etc.), a hydroxy group, and the like.

In the general formula [Y-I], examples of the aryl group represented by R _A and R _B include a phenyl group and a naphthyl group. The aryl group represented by R _A and R _B can further have a substituent, and as the substituent,
For example, a halogen atom (eg, a chlorine atom, a bromine atom, etc.), a cyano group, a nitro group, an alkyl group (eg, a methyl group, a trifluoromethyl group, an isopropyl group, a t-butyl group, an n-dodecyl group, etc.), an aryl group (Eg, phenyl group, pt-octylphenyl group, etc.), alkoxy group (eg, methoxy group, etc.), aryloxy group (eg, 2,4-di-t-amylphenoxy group, etc.), sulfonyl group (eg, methanesulfonyl group) , An alkylsulfonyl group such as a trifluoromethanesulfonyl group, and an arylsulfonyl group such as a p-toluenesulfonyl group), an acylamino group (eg, an acetylamino group, an alkylcarbonylamino group such as a myristoylamino group, and an arylcarbonylamino group such as a benzoylamino group) Group, sulfonylamino group (for example, methanes Honiruamino group, heptafluoropropanesulfonyl amino group, n- hexadecyl sulfonyl alkylsulfonylamino group such as an amino group, p
A toluenesulfonyl group, an annealed sulfonylamino group of a pentafluorobenzenesulfonylamino group), and a hydroxy group.

_RA is preferably an alkyl group, particularly preferably a branched alkyl group, and particularly preferably a t-butyl group.

R _B is preferably an alkyl group, a methyl group is particularly preferred.

The X _A in the general formula [Y-I] an acylamino group or sulfonylamino group, more preferably the general formula [A] include a group represented by the ~ [F].

Formula in [A] ~ [F], R K represents an alkyl group, a cycloalkyl group or an aryl group, R _L and R _N are each independently a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group Represents R _M represents an unsubstituted alkyl group or cycloalkyl group.

Examples of the alkyl group and cycloalkyl group represented by R _K , R _L , R _M , and R _N include, for example, groups having the same meaning as the alkyl group and cycloalkyl group represented by R _A and R _B. it can. Of these, the alkyl group and cycloalkyl group represented by R _K , R _L , and R _N can further have a substituent, and examples of the substituent include the above-described R _A
And substituents as defined for the substituents of the alkyl group and the cycloalkyl group represented by R _B.

R _K, The aryl group represented by R _L, and R _N, can be, for example, the R _A and aryl groups as defined for groups represented by R _B. These R _K, R _L, and an aryl group represented by R _N may also have a substituent, and examples of the substituent include, mentioned as substituents for the aryl group represented by the above R _A and R _B And substituents equivalent to those described above.

_RM is preferably an alkyl group, and more preferably a branched alkyl group.

In the general formulas [C] and [D], L represents a divalent linking group selected from an alkylene group and an arylene group. The alkylene group represented by L includes a cycloalkylene group, and includes, for example, a linear alkylene group such as a methylene group, a 1,2-ethylene group, a 1,3-propylene group, or a 1,4-butylene group; A branched alkylene group such as a 1,1-propylene group (ethylmethylene group), a 2,3-propylene group (1-methyl-1,2-ethylene group), or a 2,2-propylene group (dimethylmethylene group); A 1,2-cyclohexylene group is exemplified. Further, these alkylene groups may further have a substituent, and examples of the substituent include those mentioned as substituents of the alkyl group and the cycloalkyl group represented by R _A and R _B above. Substituents as defined above can be mentioned.

The arylene group represented by L has 6 to 14 carbon atoms.
And examples thereof include a 1,2-phenylene group, a 1,4-phenylene group, and a 1,4-naphthylene group. These anylene groups may further have a substituent, for example, the above-mentioned _RA and
Substituents as defined for the substituent of the aryl group represented by R _B can be mentioned.

L is preferably an alkylene group, and a linear or branched alkylene group having 1 to 4 carbon atoms in a linking portion (for example, 1,3-propylene group, 1,1-propylene group, or
1,1-pentylene and the like) are more preferred.

In the general formula [C], B represents a group that can be substituted on a benzene ring, and examples thereof include an alkyl group, a cycloalkyl group, and an aryl group, which are the same as the groups represented by R _A and R _B. Further, a halogen atom (for example, a chlorine atom,
A bromine atom, a cyano group, a nitro group, a hydroxy group, an alkoxy group (eg, a methoxy group), an aryloxy group (eg, a 2,4-di-t-amylphenoxy group), an acyloxy group (eg, a methylcarbonyloxy group) , A benzoyloxy group, etc.), an alkylsulfonyl group (eg, a methanesulfonyl group), an arylsulfonyl group (eg, a benzenesulfonyl group, a p-toluenesulfonyl group, etc.),
Sulfamoyl group (eg, N-propylsulfamoyl group, N-phenylsulfamoyl group, etc.), acylamino group (eg, acetyl group, benzoyl group, 3- (2,4-di-t-aminophenoxy) butyroyl group, etc.) An alkylsulfonylamino group (eg, methanesulfonylamino group, dodecanesulfonylamino group, etc.), an arylsulfonylamino group (eg, benzenesulfonylamino group, etc.), a carbamoyl group (eg, N-methylcarbamoyl group, N-phenylcarbamoyl group, etc.), An alkoxycarbonyl group (eg, methoxycarbonyl group, dodecyloxycarbonyl group, etc.), an aryloxycarbonyl group (eg, phenoxycarbonyl group, etc.), and an imide group (eg, succinimide group) are also included. n is 0-3
Represents an integer.

As the group that can be substituted on the benzene ring represented by B, an alkyl group and a hydroxy group are preferable, and as the alkyl group, a branched alkyl group such as a t-amyl group or a t-octyl group is more preferable.

In the general formula [Y-II], examples of the substituent represented by R _C and R _D include groups having the same meanings as the alkyl group, cycloalkyl group, and aryl group represented by R _A and R _B described above. Can be mentioned. The alkyl group, cycloalkyl group, and aryl group represented by R _C and R _D can have a substituent, and examples of the substituent include the alkyl group represented by R _A and R _B , Examples of the substituent include the same substituents as those described as the substituent for the alkyl group and the aryl group. Further, examples of the substituent represented by R _C and R _D in the general formula [Y-II] include, for example, an alkoxy group, an aryloxy group, an alkylamino group, an anilino group, an alkylsulfonyl group, and an arylsulfonyl group. And a substituent linked by a hetero atom. The substituents linked by these hetero atoms may further have a substituent, and examples of the substituent include the alkyl, cycloalkyl, and aryl groups represented by R _A and R _B described above. And the same substituents as those described above.

R _C is preferably a substituted or unsubstituted alkyl group.

R _D is preferably an alkyl group, more preferably an alkyl group having 1 to 6 carbon atoms.

In the above general formula [Y-II], Y is -O- and -S (O) _p- , preferably -O
-. p represents an integer from 0 to 2.

In the above general formula [Y-II], examples of the substituent represented by _RG include the same substituents as those of R _C and R _D above. _RG may further have a substituent.Examples of the substituent include, for example, the groups mentioned as the substituents of the alkyl group, cycloalkyl group, and aryl group represented by R _A and R _B above. Substituents having the same meaning can be mentioned.

R _G is preferably a hydrogen atom or an alkyl group, and R _G
If is an alkyl group, bonded to each other with R _D, it may form a ring structure.

Examples of the substituent represented by R _E and R _F in the general formula [Y-III] include the same substituents as R _C and R _D in the general formula [Y-II]. Further, R _E and R _F may further have a substituent, and examples of the substituent include alkyl, cycloalkyl, and aryl groups represented by R _A and R _B described above. Substituents which have the same meanings as those described above. R _E and R _F may be the same or different from each other, and may be further bonded to each other to form a ring structure.

As _RE and _RF , an aryl group and an alkyl group are preferable, and an alkyl group is particularly preferable.

In the above general formula [Y-III], W represents -O- and -S (O) _r- , and is preferably -O-. r represents an integer from 0 to 2.

The 2-equivalent yellow coupler represented by the general formula [Y-I] may be bonded at any substituent to form a bis-isomer.

The yellow coupler represented by the general formula [Y-I] according to the present invention can be synthesized by a conventionally known method.

The yellow coupler represented by the general formula [Y-I] according to the present invention can be used alone or in combination of two or more, and can be used in combination with another type of yellow coupler.

Further, yellow couplers according to the present invention is from about 1 × 10 ^-3 mol to about 1 mol Usually, per mol of silver halide, preferably be used in a range of 1 × 1 ^-2 mol to 8 × 10 ^-1 mol it can.

Next, typical specific examples of the 2-equivalent yellow coupler represented by the general formula [YI] used in the present invention will be shown, but the present invention is not limited thereto.

The yellow coupler of the invention represented by the general formula [Y-I] can be easily synthesized by a conventionally known method. Hereinafter, typical synthesis examples of the present invention will be described.

(1) Synthesis of 4-equivalent coupler (A) 13.2 g of α-pivaloyl-2-methoxy-5-aminoacetanilide was dissolved in 50 ml of ethyl acetate, and 50 ml of water and 2.65 g of sodium carbonate were added, followed by vigorous stirring. Here 2
-(2,4-di-t-amylphenoxy) butyric acid chloride 17.
A solution of 8 g in 25 ml of ethyl acetate was added dropwise. After completion of the dropwise addition, the mixture was stirred at room temperature for 1 hour, and the organic layer was washed with a 5% aqueous potassium carbonate solution and dilute hydrochloric acid. After dehydration with magnesium sulfate, the solvent was removed under reduced pressure, and the residue was recrystallized from 100 ml of methanol to obtain the desired 4-equivalent coupler (A). Yield: 24.1 g (yield: 85%) (2) Synthesis of Exemplary Coupler (1) 24.1 g of the 4-equivalent coupler (A) obtained above was dissolved in 100 ml of chloroform, and 6.3 g of sulfuryl chloride under ice cooling.
Was added dropwise. After the dropwise addition, the mixture was stirred for 1 hour, and the reaction solution was washed with water, dehydrated with magnesium sulfate, and then the solvent was removed under reduced pressure.

The obtained residue was dissolved in 150 ml of acetone, and 3
-Benzyl-4-ethoxyhydantoin (13.0 g) and potassium carbonate (7.6 g) were added, and the mixture was heated under reflux for 3 hours. After filtering off insolubles, the mixture was washed with a 5% aqueous potassium carbonate solution and dilute hydrochloric acid. After dehydration with magnesium sulfate, the solvent was removed under reduced pressure,
The residue was recrystallized from 100 ml of methanol to obtain the desired exemplified coupler (1). Yield 19.1 g (56% yield).

The structure of the exemplified coupler (1) was confirmed by NMR, IR, and mass spectrum.

Illustrative couplers other than Illustrative coupler (1) were also synthesized according to the above synthesis examples, starting from the corresponding raw materials.

The cyan coupler and yellow coupler of the present invention can be added to a silver halide photographic material using various methods such as a solid dispersion method, a latex dispersion method, and an oil-in-water emulsion dispersion method.

For example, the water-in-water type emulsification dispersion method, a hydrophobic additive such as a cyan coupler, a yellow coupler, usually tricresyl phosphate, a high boiling organic solvent having a boiling point of about 150 ° C. or more such as dibutyl phthalate, ethyl acetate, if necessary, After dissolving in combination with a low-boiling point and / or water-soluble organic solvent such as butyl propionate, and emulsifying and dispersing with a surfactant in a hydrophilic binder such as an aqueous gelatin solution, the resultant is dispersed in a desired hydrophilic colloid layer. What is necessary is just to add.

The silver halide photographic light-sensitive material of the present invention can be applied to, for example, color negative and positive films, color photographic paper, etc., and particularly when applied to color photographic paper for direct viewing. The effect is effectively exhibited.

The silver halide photographic light-sensitive material of the present invention including the color photographic paper contains the cyan coupler, the yellow coupler and the known magenta coupler of the present invention as photographic couplers in order to perform color-reduced color reproduction. It has a structure in which a red-sensitive, blue-sensitive and green-sensitive silver halide emulsion layer and a non-light-sensitive layer are laminated on a support in an appropriate number and order of layers. It may be appropriately changed depending on the performance and the purpose of use.

Examples of the yellow coupler that can be used in combination with the yellow coupler of the general formula [Y-I] include benzoylacetanilide-based and pivaloylacetoanilide-based compounds. The cyan coupler that can be used in combination with the cyan coupler of the present invention is phenol. And naphthol compounds.

Examples of the magenta coupler that can be used in the photographic light-sensitive material of the present invention include pyrazolopyrazoles, pyrazoloimidazoles, pyrazoloazole-based compounds such as pyrazolotriazoles and pyrazolotetrazole compounds, and pyrazolones. Compounds, pyrazolobenzimidazole compounds and closed acylacetonitrile compounds.

The silver halide emulsion used in the silver halide photographic light-sensitive material of the present invention (hereinafter, referred to as the silver halide emulsion of the present invention) includes silver bromide, silver iodobromide, silver iodochloride, and silver halide. Any of those used in ordinary silver halide emulsions such as silver bromide and silver chloride can be used.

The silver halide emulsion of the present invention can be chemically sensitized by a sulfur sensitization method, a selenium sensitization method, a reduction sensitization method, a noble metal sensitization method, or the like.

The silver halide emulsion of the present invention is optically sensitized to a desired wavelength region using a dye known in the photographic industry as a sensitizing dye.

The silver halide photographic light-sensitive material of the present invention includes a color fogging inhibitor, a hardener, a plasticizer, a polymer latex, an ultraviolet absorber, a formalin scavenger, a mordant, a development accelerator, a development retarder, a fluorescent brightener, and a mat. Agents, lubricants, antistatic agents, surfactants and the like can be optionally used.

In the present invention, any processing used in the art can be performed, and for example, processing such as color development processing, bleaching, fixing or bleach-fixing, stabilization, washing with water, and stopping can be performed.

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

Example 1 (Adjustment of silver halide emulsion) Three kinds of silver halide emulsions shown in Table 1 were prepared by a neutral method and a simultaneous mixing method.

After completion of chemical sensitization, each of the silver halide emulsions was added with 5 × 10 ⁻³ mol of STB-1 shown below as an emulsion stabilizer per mol of silver halide.

(Preparation of silver halide color photographic light-sensitive material samples) Next, the following layers 1 to 7 were sequentially coated (simultaneously coated) on a paper support having both surfaces coated with polyethylene, and the silver halide color photographic light-sensitive materials 1 to 31 Was prepared. (In the following examples, the amount of addition is shown in terms of the amount per 1 m ² of the light-sensitive material.) Layer 1: Blue light-sensitive silver halide emulsion of gelatin (1.2 g) and 0.28 g (silver conversion, same hereafter) (Em-1) and 1.0 mmol of the yellow coupler shown in Table 2 and 0.015 g of 2,5
-0.3 g in which dioctyl hydroquinone (HQ-1) is dissolved
A layer containing dinonyl phthalate (DNP).

Layer 2: Layer containing gelatin (0.9 g) and 0.2 g of dioctyl phthalate (DOP) in which 0.04 g of HQ-1 is dissolved.

Layer 3: Gelatin (1.4 g), 0.2 g of green light-sensitive silver halide emulsion (Em-2), 0.9 mmol of magenta coupler (M-1), 0.25 g of light stabilizer (ST-2) and 0.01 g HQ
-1 containing 0.3 g of DOP and 6 mg of the following filter dye (AI-1).

Layer 4: Gelatin (1.2 g) and 0.6 g of ultraviolet absorber (UV
-1) and a layer containing 0.3 g of DNP in which 0.05 g of HQ-1 was dissolved.

Layer 5: gelatin (1.4 g), 0.20 g of red-sensitive silver halide emulsion (Em-3), 1.0 mmol of the cyan coupler shown in Table 2, 0.01 g of HQ-1 and 0.3 g of ST-1 Containing 0.3 g of DOP dissolved therein.

Layer 6: Layer containing gelatin (1.1 g), 0.2 g of DOP in which 0.2 g of UV-1 is dissolved, and 5 mg of the following filter dye (AI-2).

Layer 7: Layer containing gelatin (1.0 g) and 0.05 g of sodium 2,4-dichloro-6-hydroxytriazine.

The obtained sample was used as a sensitometer KS-7 (manufactured by Konica Corporation).
And wedge exposure using monochromatic light of blue, green, and red, respectively, and processing according to the following color developing process. Then, using a densitometer (PDA-65 type manufactured by Konica Corporation), a red-sensitive emulsion And the reflection density of the blue-sensitive emulsion layer were measured.

The samples were subjected to a fade test for 14 days with a fade meter, and the light resistance was evaluated by determining the residual ratio (%) of the dye image at an initial density of 1.0 for the blue-sensitive emulsion layer and the red-sensitive emulsion layer. did.

In addition, a negative film obtained by photographing and developing a color checker (manufactured by Macbeth) with Konica Color GX-100 (manufactured by Konica Corporation) was adjusted to the tone of the gray part, and then printed on the sample obtained above. The color reproducibility in each hue was evaluated.

Thereafter, these samples were subjected to a fading test for 14 days in the same manner as described above, and the color reproducibility in each hue was also evaluated.

 Table 2 shows the results.

[Processing process] Temperature Time Color development 34.7 ± 0.3 ° C 45 seconds Bleaching and fixing 34.7 ± 0.5 ° C 45 seconds Stabilization 30-34 ° C 90 seconds Drying 60-80 ° C 60 seconds [Color developing solution] Pure water 800ml Triethanolamine 8g N, N-diethylhydroxyamine 5g Potassium chloride 2g N-ethyl-N-β-methanesulfonamidoethyl-
3-methyl-4-aminoaniline sulfate 5 g Sodium tetrapolyphosphate 2 g Potassium carbonate 30 g Potassium sulfite 0.2 g Fluorescent whitening agent (4,4'-diaminostilbenzyl sulfonic acid derivative) 1 g Add pure water to make the total amount 1 Adjust to pH 10.05.

[Bleaching and fixing solution] Ethylenediaminetetraacetic acid ferric ammonium dihydrate 60 g Ethylenediaminetetraacetic acid 3 g Ammonium thiosulfate (70% solution) 100 ml Ammonium sulfite (40% solution) 27.5 ml Adjusted to pH 5.7 with potassium carbonate or glacial acetic acid, Add water to bring the total volume to 1.

[Stabilizing solution] 5-chloro-2-methyl-4-isothiazoline-3-
ON 1 g 1-hydroxyethylidene-1,1-diphosphonic acid 2 g Add water to make 1 and adjust to pH with sulfuric acid or potassium hydroxide
Adjust to 7.0.

As is clear from the results in Table 2, the samples outside the present invention were not used.
Nos. 1 to 3 cannot satisfy all the hues of blue, green, red, yellow, magenta, and cyan, and cannot be said to be photographic photosensitive materials excellent in overall color reproducibility.

On the other hand, Sample Nos. 4 to 31 using both the cyan coupler and the yellow coupler of the present invention have excellent color reproducibility for all hues, and the effects of the present invention are excellent. You can see that.

Further, as is clear from Table 2, when the cyan coupler of the present invention and the yellow coupler of the present invention were used in combination, even after forced deterioration, the color balance was not significantly impaired visually. In the cases of .1 to 3, the color reproducibility was deteriorated due to the forced deterioration, and as a result, an image with an unbalanced color was obtained.

Furthermore, from Table-2, it can be seen that Samples Nos. 4 to 31 of the present invention also have better light resistance than Samples Nos. 1 to 3 outside the present invention.

[Effects of the Invention] The silver halide photographic light-sensitive material of the present invention contains the cyan coupler of the present invention and the yellow coupler of the present invention, and thus, a cyan dye formed while maintaining practically sufficient image storability. In addition, the spectral absorption characteristics of the yellow dye are improved, and as a result, the color reproducibility for all hues can be significantly improved, and good color reproducibility can be maintained even after aging.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoko Nagaoka 1 Sakura-cho, Hino-shi, Tokyo Inside Konica Corporation (56) References JP-A-63-306445 (JP, A) JP-A-1-131559 ( JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) G03C 7/36

Claims (1)

(57) [Claims] 1. A blue-sensitive silver halide emulsion layer on a support,
In a silver halide photographic material having a photographic constituent layer including a green light-sensitive silver halide emulsion layer and a red light-sensitive silver halide emulsion layer, the red light-sensitive silver halide emulsion layer has the following general formula [CI] Wherein the blue-sensitive silver halide emulsion layer contains a yellow coupler represented by the following general formula [Y-I]. Silver photographic photosensitive material. [In the formula, R ₁ represents an alkyl group having 2 to 6 carbon atoms. R ₂ represents a ballast group. R ₃ represents a hydrogen atom, a halogen atom or an alkyl group. X ₁ represents a hydrogen atom or a group capable of leaving by reaction with an oxidized form of a color developing agent. ] Wherein R _A and R _B are an alkyl group, a cycloalkyl group,
Or an aryl group. X _A represents an acylamino group or a sulfonylamino group. Z _A represents a group capable of leaving by reaction with an oxidized form of the color developing agent represented by the general formulas [Y-II] and [Y-III]. [Wherein, R _C and R _D represent a hydrogen atom or a substituent;
Is (Wherein, _RG represents a hydrogen atom or a substituent, and p represents an integer from 0 to 2). ] Wherein R _E and R _F represent a hydrogen atom or a substituent;
Represents -O- or -S (O) _r- . r represents an integer from 0 to 2. ]]