JPH0627617A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To provide the silver halide photographic sensitive material superior in storage stability and color development performance and color reproduction performance and small in change photographic performance in successive processing. CONSTITUTION:The silver halide photographic sensitive material is characterized by having on a support at least one silver halide emulsion layer containing a dye-forming coupler and at least one kind of compound having an ester group and an oxidation potential of <=1800mV.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide photographic light-sensitive material, and more specifically, a halogen having good image storability, excellent color developability and color reproducibility, and a small change in photographic performance during continuous processing. The present invention relates to a silver halide photographic material.

[0002]

BACKGROUND OF THE INVENTION In a silver halide photographic light-sensitive material for direct viewing, for example, color photographic paper, a combination of a yellow coupler, a magenta coupler and a cyan coupler is usually used as a color forming agent for forming a dye image. . These couplers are required to have basic performance such as color reproducibility, color developability and image storability in a dye image to be obtained. In recent years, in particular, demand for storability of dye image, original color of object. There is a growing demand from users to improve color reproducibility in order to faithfully reproduce.

As a method of improving the storability of an image, it is possible to use a phenol derivative or a piperidine derivative having a specific structure in Japanese Patent Publication Nos. 51-1420 and 5-5.
2-6623, JP-A-59-87456, JP-A-3.
-96944 and the like. However, these methods often lead to a decrease in color density.

With respect to color reproducibility, since the absorption characteristics of the dye image obtained are very important, studies of couplers having good absorption characteristics have been extensively conducted recently, for example, JP-A-63 / 63. -123047, Japanese Patent Application No. 2-2
The pivaloylacetanilide type yellow couplers having an alkoxy group in the anilide moiety described in JP-A-45949 and JP-A-2-96774 have sharp absorption of color forming dyes and are particularly useful as couplers for color photographic paper. However, as a result of various studies on the above-mentioned yellow coupler, it became clear that there is a drawback that the stability of the formed dye image to light, that is, the light resistance is insufficient.

Further, in recent years, in the light-sensitive materials for color photography and printing, the printing process and the developing process have been shortened and accelerated, and the sensitivity is high.
There is an increasing demand for stability in processing. In particular, the change in photographic performance associated with the change in the concentration of processing liquid components during continuous processing has become an increasingly serious problem under rapid processing.

[0006]

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a silver halide photographic light-sensitive material having excellent storage stability against heat and light. A second object of the present invention is to provide a silver halide photographic light-sensitive material excellent in color developability. A third object of the present invention is to provide a silver halide photographic light-sensitive material having a small change in photographic performance during continuous processing. A fourth object of the present invention is to provide a silver halide photographic light-sensitive material excellent in color reproducibility.

[0007]

The above object of the present invention is achieved by the following configurations. (1) A silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing a dye-forming coupler on a support, wherein the silver halide emulsion layer has an ester group and an oxidation potential of 1800 mV. A silver halide photographic light-sensitive material containing at least one of the following compounds. (2) Having an ester group and an oxidation potential of 1800 m
The silver halide photographic light-sensitive material as described in (1) above, wherein the compound of V or less is a compound represented by the following general formula [I]. General formula [I]

[0008]

[Chemical 4] [Wherein R ¹¹ and R ¹² each represent an alkyl group, and R ¹³
Represents a divalent linking group, and R ¹⁴ represents a hydrogen atom or a substituent. ] (3) Having ester group and oxidation potential of 1800 m
The silver halide photographic light-sensitive material as described in (1) above, wherein the compound of V or less is a compound represented by the following general formula [II]. General formula [II]

[0009]

[Chemical 5] [In the formula, R ²¹ and R ²² are each a hydrogen atom or a carbon number 1
To 5 are alkyl groups, J is an alkylene group or a mere bond, and R ²³ is a heterocyclic residue. (4) The silver halide photographic light-sensitive material as described in (1) to (3) above, wherein the dye-forming coupler is a yellow coupler. (5) The silver halide photographic light-sensitive material as described in (1) to (4) above, wherein the dye-forming coupler is a yellow coupler represented by the following general formula [Y-I]. General formula [Y-I]

[0010]

[Chemical 6] [In the formula, R ¹ represents an alkyl group or cycloalkyl, and R ²
Represents an alkyl group, a cycloalkyl group, an aryl group or an acyl group, and R ³ represents a group capable of substituting on the benzene ring. n represents 0 or 1. X ¹ represents a group capable of splitting off upon coupling with an oxidized product of a developing agent, and Y ¹ represents an organic group. (6) The silver halide photographic light-sensitive material as described in (1) to (5) above, wherein the dye-forming coupler is a cyan coupler. (7) A silver halide photographic light-sensitive material having a photographic constituent layer including a blue light-sensitive silver halide emulsion layer, a green light-sensitive silver halide emulsion layer and a red light-sensitive silver halide emulsion layer on a support, wherein the blue At least one of the yellow couplers represented by the general formula [YI] described in (5) above and at least one of the general formula [II] described in (3) above is provided in at least one of the photosensitive silver halide emulsion layers. A silver halide photographic light-sensitive material containing one of the compounds described above.

[0011]

DETAILED DESCRIPTION OF THE INVENTION First, a compound having an ester group according to the present invention and having an oxidation potential of 1800 mV or less (hereinafter referred to as a compound of the present invention) will be described.

In the present invention, the oxidation potential is obtained by the cyclic voltammetry method. The oxidation potential was 20 ° C. in acetonitrile solvent, using platinum as a working electrode and a control electrode, a saturated calomel electrode as a reference electrode, tetra-n-butyl-ammonium perchlorate as a supporting electrolyte, and a sweep rate of 50 mV.
It can be determined by measuring the cyclic voltammogram at 1 / second.

The compound of the present invention is preferably a compound represented by the following general formula [I] or general formula [II]. General formula [I]

[0014]

[Chemical 7] [Wherein R ¹¹ and R ¹² each represent an alkyl group, and R ¹³
Represents a divalent linking group, and R ¹⁴ represents a hydrogen atom or a substituent. ] General formula [II]

[0015]

[Chemical 8] [In the formula, R ²¹ and R ²² are each a hydrogen atom or a carbon number 1
To 5 are alkyl groups, J is an alkylene group or a mere bond, and R ²³ is a heterocyclic residue. Next, the compounds represented by the general formula [I] and the general formula [II] will be described.

In the general formula [I], R ¹¹ and R ¹² each represent an alkyl group. The alkyl group represented by R ¹¹ and R ¹² is a linear or branched alkyl group having 1 to 24 carbon atoms, for example, methyl, ethyl, i-propyl, t-butyl, octyl, 2-ethylhexyl, dodecyl, tetradecyl. , Eicosyl, benzyl and the like are preferable.
Of these, branched alkyl groups are particularly preferable as R ¹¹ and R ¹² .

R¹³ Represents a divalent linking group. R¹³ As
Include an alkylene group, a phenylene group, and the like.
May have a substituent. R¹³ As a straight-chain al
A xylene group is particularly preferred. Also R¹³ The number of carbons contained in
The range of 1 to 10 is preferable, and the range of 2 to 6 is preferable.
It is particularly preferable that it is surrounded.

R¹⁴ Represents a hydrogen atom or a substituent. R
¹⁴ Preferred as the substituent represented by is an alkyl group,
Cycloalkyl group, alkenyl group, aryl group, alk
Luamino group, alkylthio group, arylthio group, alcohol
Xycarbonyl group, aryloxycarbonyl group, etc.
It Also R¹⁴ Has at least one branch point in the structural formula
What has been done is preferable.

In the general formula [II], examples of the alkyl group represented by R ²¹ and R ²² include a methyl group, an ethyl group, a propyl group, a butyl group and an amyl group, and these alkyl groups are branched. May have. The alkylene group represented by J is, for example, a methylene group, an ethylene group, a propylene group or a butylene group having 1 to 20 carbon atoms.
And the alkylene groups may have a branch. The heterocyclic residue represented by R ²³ is a 5-membered or 6-membered ring residue containing a hetero atom such as oxygen, sulfur or nitrogen, for example, a thienyl group, a furyl group, a pyrrolyl group, a pyrrolidinyl group, a piperidyl group, Examples thereof include a piperazinyl group, a morpholinyl group, a thiacyclohexyl group, a dithiacyclohexyl group, an oxacyclohexyl group, and a dioxacyclohexyl group, and these heterocyclic residues are condensed with another heterocyclic ring or a hydrocarbon ring. May also form a spiro compound.

The oxidation potential of the compound of the present invention is 8
It is preferably in the range of 00 to 1800 mV, and 12
Particularly preferably, it is in the range of 00 to 1500 mV.

Specific examples of the compound of the present invention are shown below, but the present invention is not limited thereto.

[0022]

[Chemical 9]

[0023]

[Chemical 10]

[0024]

[Chemical 11]

[0025]

[Chemical 12]

[0026]

[Chemical 13]

[0027]

[Chemical 14]

[0028]

[Chemical 15]

[0029]

[Chemical 16]

[0030]

[Chemical 17] These compounds can be easily synthesized by the method described in EP-310,552.

These compounds may be used alone or in combination. The addition amount is 5 to 300 with respect to the coupler.
Mol% is preferable, and more preferably 10-200 mol%
Is.

Next, the yellow coupler used in the present invention will be described. In the present invention, any yellow coupler may be used without limitation.
A yellow coupler represented by the general formula [Y-I] is preferable. General formula [Y-I]

[0033]

[Chemical 18][In the formula, R¹Represents an alkyl group or a cycloalkyl group,
R²Is an alkyl group, cycloalkyl group, aryl group or
Represents an acyl group, R³Is a substitutable group on the benzene ring
Represent n represents 0 or 1. X¹Is the oxidant of the developing agent
Represents a group capable of splitting off upon coupling with¹Is organic
Represents a group. ] In the general formula [Y-I], R¹ An alkyl group represented by
As, for example, methyl group, ethyl group, isopropyl
Group, t-butyl group, dodecyl group and the like. these
R¹ The alkyl group represented by further has a substituent
The substituents include, for example, a halogen atom,
Aryl group, alkoxy group, aryloxy group, alk
Examples include sulfonyl group, acylamino group, and hydroxy group.
To be

R¹ As a cycloalkyl group represented by
Is cyclopropyl group, cyclohexyl group, adamantchi
And the like. R¹ It is preferable that
It is an alkyl group, and a t-butyl group is particularly preferable.

In the general formula [Y-I], R² Represented by
The alkyl group and cycloalkyl group are R¹Description
Groups similar to the groups shown in² Represented by ants
Examples of the aryl group include a phenyl group. this
R² Is represented by an alkyl group, a cycloalkyl group, an ant
R for the radical¹Have the same substituents as the groups described in
It also includes things. Also, R² As an acyl group represented by
Are, for example, acetyl group, propionyl group, butyryl.
Group, hexanoyl group, benzoyl group and the like. R
² Is preferably an alkyl group or an aryl group,
Alkyl groups are more preferred, and charcoal is more preferred.
A lower alkyl group having a prime number of 5 or less.

In the general formula [Y-I], R³ Represented by
Groups that can be substituted on the benzene ring include halogen atoms
(Eg chlorine atom), alkyl group (eg ethyl group, i
-Propyl group, t-butyl group), alkoxy group (for example,
Methoxy), aryloxy (eg phenyloxy)
Si group), an acyloxy group (eg, methylcarbonyloxy)
Si group, benzoyloxy group), acylamino group (eg
Acetamide group, phenylcarbonylamino group), cal
Vamoyl group (eg, N-methylcarbamoyl group, N-phenyl group)
Phenylcarbamoyl group), alkylsulfonylamino group
(Eg ethylsulfonylamino group), arylsulfo
A nylamino group (for example, a phenylsulfonylamino group),
Sulfamoyl group (eg N-propylsulfamoyl
Group, N-phenylsulfamoyl group) and imide group (eg
Examples include succinimide group and glutarimide group)
To be n represents 0 or 1.

In the general formula [Y-I], Y¹ Is an organic group
Is represented, but is not limited to, preferably the following general formula [Y-
II]. General formula [Y-II] -J-R^Four  In the formula, J is -N (R^Five ) -CO-, -CON (R^Five )-,
-COO-, -N (R^Five ) -SO₂-Or-SO₂-N
(R^Five ) -Represents. R^Four And R^Five Is a hydrogen atom, alkyl
Represents a group, an aryl group or a heterocyclic group.

R^Four And R^Five As an alkyl group represented by
Is a methyl group, an ethyl group, an isopropyl group, t-butyl
Group, dodecyl group and the like. Also R^Four And R^Five Table
Examples of the aryl group include phenyl group and naphthyl group.
Groups and the like. These R^Four And R^Five Represented by
The alkyl group or aryl group includes those having a substituent.
Get caught The substituent is not particularly limited, but
As a representative, halogen atoms (chlorine atom, etc.),
Kill group (ethyl group, t-butyl group, etc.), aryl group (phenyl group)
Phenyl group, p-methoxyphenyl group, naphthyl group, etc.),
Alkoxy group (ethoxy group, benzyloxy group, etc.)
Reeloxy group (phenoxy group, etc.), alkylthio group
(Ethylthio group, etc.), arylthio group (phenylthio group
Etc.), alkylsulfonyl group (β-hydroxyethyls
(Rufonyl group, etc.), Arylsulfonyl group (phenylsulfinyl
And a acylamino group such as
Alkylcarbonylamino group (acetamido group, etc.),
Reel carbonylamino group (phenylcarbonylamino
Groups, etc.); carbamoyl groups such as alkyl groups, aryl
Those in which a group (preferably a phenyl group) is substituted
Specifically, N-methylcarbamoyl group, N-phen
Nylcarbamoyl group and the like; Acyl group such as acetyl group and the like
Aryl carbonyl groups such as
Rubonyl group; sulfonamide group such as alkylsulfon
Nylamino group, arylsulfonylamino group, specifically
Is methylsulfonylamino group, benzenesulfonamide
Groups, etc .; sulfamoyl groups such as alkyl groups, aryl
Those substituted with a group (preferably a phenyl group)
Specifically, N-methylsulfamoyl group, N-phenyl group
Phenylsulfamoyl group, etc .; Hydroxy group; Nitrile
Group; and the like.

-J-R^Four Is particularly preferred as the group represented by
As for -NHCOR ′^Four Is mentioned. here
R '^Four Represents an organic group, preferably having 1 to 30 carbon atoms.
Linear and branched alkyl groups such as methyl group, ethyl
Group, n-propyl, isopropyl group, t-butyl group, n
-Pentyl group, n-hexyl group, 2-ethylhexyl group
Group, n-octyl group, n-decyl group, straight chain and branched chain
Decyl group, tridecyl group, tetradecyl group, pentadecyl group
Group, hexadecyl group, heptadecyl group, octadecyl group
Group, nonadecyl group, eicosyl group, docosyl group, tetra
Examples thereof include cosyl group and hexacosyl group. These al
Among the killed groups, particularly preferred are those having 8 to 20 carbon atoms.
It is a rukyll group.

X in the general formula [Y-I]¹ Is a developing agent
Represents a group capable of leaving during the coupling reaction with the oxidant of.
Examples of these groups include the following general formula [Y-III] or
Or a group represented by the general formula [Y-IV].
The group represented by the general formula [Y-IV] is preferable. General formula [Y-III] -OR⁶  In the general formula [Y-III], R⁶ Has a substituent
Represents an aryl group or a heterocyclic group. General formula [Y-IV]

[0041]

[Chemical 19]In the general formula [Y-IV], Z¹ In collaboration with the nitrogen atom
The group of non-metal atoms required to form a 5- or 6-membered ring is shown.
You Here, the atomic groups necessary to form non-metallic atomic groups and
For example, methylene, methine, substituted methine,> C =
O,> NR⁷ (R⁷ Is the R^Five , -N =,
-O-, -S-, -SO₂-And the like.

Yellow represented by the above general formula [Y-I]
The coupler is R¹ , R³ Or Y¹ Combined at the part, the screw body
You may form.

Next, specific examples of the yellow coupler represented by the general formula [Y-I] are shown.

[0044]

[Chemical 20]

[0045]

[Chemical 21]

[0046]

[Chemical formula 22]

[0047]

[Chemical formula 23]

[0048]

[Chemical formula 24]

[0049]

[Chemical 25]

[0050]

[Chemical formula 26]

[0051]

[Chemical 27]

[0052]

[Chemical 28]

[0053]

[Chemical 29]

[0054]

[Chemical 30] These yellow couplers represented by the general formula [Y-I] of the present invention are disclosed in JP-A-63-123047 and Japanese Patent Application No. 2-2.
It can be easily synthesized by the method described in Japanese Patent Publication Nos. 45949 and 2-96774.

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

In the present invention, the yellow coupler is usually used in an amount of about 1 × 10 ^-3 mol to about 1 mol, preferably 1 × 10 ^-2 mol to 8 × 10 ^-1 mol, per mol of silver halide. be able to.

Next, the cyan coupler used in the present invention will be described. In the present invention, any cyan coupler may be used without any limitation, but as the cyan coupler used in the present invention, naphthol type, phenol type and imidazole type cyan couplers are preferable. More preferable cyan couplers include cyan couplers represented by the following general formulas [CI] and [C-II]. General formula [C-I]

[0058]

[Chemical 31] [In the formula, R _C1 represents an alkyl group having 2 to 6 carbon atoms.
R _C2 represents a ballast group. Z _C represents a hydrogen atom or an atom or group capable of splitting off upon reaction with an oxidized product of a color developing agent. ] General formula [C-II]

[0059]

[Chemical 32] [In the formula, R ^C1 represents an alkyl group or an aryl group. R ^C2
Represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group. R ^C3 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group. Further, R ^C1 and R ^C3 may together form a ring. Z ^C represents a hydrogen atom or an atom or group capable of splitting off upon reaction with an oxidized product of a color developing agent. In the general formula [C-I], the alkyl group represented by R _C1 may be linear or branched and includes those having a substituent.

The ballast group represented by R _C2 has a size and shape that provides the coupler molecule with sufficient bulk to prevent the coupler from substantially diffusing the coupler from the layer to which it is applied. It is an organic group. Preferred as the ballast group are those represented by the following general formula.

[0061]

[Chemical 33] R _C3 represents an alkyl group having 1 to 12 carbon atoms, Ar _C represents an aryl group such as a phenyl group, and the aryl group also includes those having a substituent.

Specific examples of the cyan coupler represented by the general formula [CI] are exemplified compound PC described in JP-A-1-156748, page 30, upper right column to page 31, upper left column.
-1 to PC-19, the exemplified compounds C-1 to C-28 described in JP-A-62-249151, and JP-B-4.
9-11572, JP-A 61-3142, 61-
9652, 61-9653, 61-39045
No. 61-50136, No. 61-99141, No. 61-105545 and the like, and cyan couplers described later, but not limited thereto.

In the general formula [C-II], the alkyl group represented by R ^C1 is preferably one having 1 to 32 carbon atoms, and these alkyl groups may be linear or branched and have a substituent. Also includes.

The aryl group represented by R ^C1 is preferably a phenyl group, including those having a substituent.

The alkyl group represented by R ^C2 is preferably one having 1 to 32 carbon atoms, and these alkyl groups may be linear or branched and include those having a substituent.

The cycloalkyl group represented by R ^C2 preferably has 3 to 12 carbon atoms, and these cycloalkyl groups include those having a substituent.

The aryl group represented by R ^C2 is preferably a phenyl group, including those having a substituent.

The heterocyclic group represented by R ^C2 is preferably a 5- to 7-membered heterocyclic group, which may have a substituent and may be condensed.

R ^C3 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, and the alkyl group and the alkoxy group include those having a substituent, but R ^C3 is preferably a hydrogen atom.

Further, the ring formed by R ^C1 and R ^C3 in combination is preferably a 5- or 6-membered ring.

[0071]

[Chemical 34] Etc.

In the general formula [C-II], the group capable of splitting off upon reaction with the oxidized product of the color developing agent represented by Z ^C is a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group or a sulfonyloxy group. Examples thereof include a group, an acylamino group, a sulfonylamino group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group and an imide group, but a halogen atom, an aryloxy group and an alkoxy group are preferable.

Among the cyan couplers represented by the general formula [C-II], the particularly preferable one is the following general formula [C-II-A].
It is shown by. General formula [C-II-A]

[0074]

[Chemical 35] In the formula, R _A1 represents a phenyl group substituted with at least one halogen atom, and these phenyl groups further include those having a substituent other than a halogen atom. R _A2 has the same _meaning as R ^{C1 in the} general formula [C-II]. X _A represents a halogen atom, an aryloxy group or an alkoxy group, and includes those having a substituent.

Typical examples of the cyan coupler represented by the general formula [C-II] are exemplified compounds C-1 to C-25 described in JP-A-63-96656, and JP-A-1-25. 156748, page 32, lower left column to page 34, upper left column, in addition to the exemplified compounds PC-II-1 to PC-II-31, JP-A No. 62-178962, page 7, lower right column, to page 9, lower left column, JP-A-60-225155, page 7, lower left column, page 10-lower right column, JP-A-60-222853, page 6, upper left column-page 8, lower right column, and JP-A-59-185335, page 6, lower left column, page 9 Examples include 2,5-diacylamino cyan couplers described in the upper left column and the following cyan couplers, which can be synthesized according to the methods described therein. The following general formula [CI] and general formula Of the cyan coupler represented by [C-II] It shows the body example.

[0076]

[Chemical 36]

[0077]

[Chemical 37]

[0078]

[Chemical 38]

[0079]

[Chemical Formula 39]

[0080]

[Chemical 40]

[0081]

[Chemical 41]

[0082]

[Chemical 42]

[0083]

[Chemical 43]

[0084]

[Chemical 44] Cyan couplers are usually 1 x 1 per mole of silver halide
It can be used in the range of 0 ^-3 to 1 mol, preferably 1 × 10 ^-2 to 8 × 10 ^-1 mol.

Further, these cyan couplers can be used together with other types of cyan couplers.

In the present invention, as the magenta coupler, a 5-pyrazolone type coupler, a pyrazolobenzimidazole type coupler, a pyrazolotriazole type coupler,
Known couplers such as open-chain acylacetonitrile couplers can be used.

The compound of the present invention and the coupler are preferably used in the same layer, but may be used in a layer adjacent to the layer in which the coupler is present.

The compounds of the present invention and hydrophobic compounds such as couplers can be added to the light-sensitive material by various methods such as solid dispersion method, latex dispersion method and oil-in-water type emulsion dispersion method. For example, the compound or coupler of the present invention is used in combination with a high boiling point organic solvent having a boiling point of about 150 ° C. or higher or a water-insoluble organic solvent-soluble polymer compound, if necessary, in combination with a low boiling point and / or water-soluble organic solvent. Dissolve and use surfactant in hydrophilic binder such as gelatin aqueous solution, stirrer,
After emulsifying and dispersing using a dispersing means such as a homogenizer, a colloid mill, a flow jet mixer, an ultrasonic device,
It may be added to the desired hydrophilic colloid layer. A step of removing the low boiling point organic solvent may be added after or at the same time as the dispersion.

In the present invention, as the high boiling point organic solvent, those having a dielectric constant of less than 6.0 are preferably used. Although the lower limit of the dielectric constant is not particularly limited, it is preferably 1.9 or more. Examples of these high boiling point organic solvents include esters having a dielectric constant of less than 6.0 such as phthalic acid ester and phosphoric acid ester, organic acid amides, ketones, and hydrocarbon compounds. Further, in the present invention, a high boiling point organic solvent having a vapor pressure at 100 ° C. of 0.5 mmHg or less is preferable.

The high boiling point organic solvent may be a mixture of two or more kinds, and in this case, the dielectric constant of the mixture may be less than 6.0. The dielectric constant here indicates the dielectric constant at 30 ° C.

Preferred as the high boiling point organic solvent are phthalic acid esters or phosphoric acid esters.

As the phthalic acid ester advantageously used in the present invention, those represented by the following general formula [HA] can be mentioned. General formula [HA]

[0093]

[Chemical formula 45] In the formula, R _H1 and R _H2 each represent an alkyl group, an alkenyl group or an aryl group. However, the total number of carbon atoms of the groups represented by R _H1 and R _H2 is 9 to 32. Further, more preferably, the total number of carbon atoms is 16 to 24.

The alkyl group represented by R _H1 and R _H2 in the above general formula [HA] may be linear or branched. _Examples of the aryl group represented by R _H1 and R _H2 include a phenyl group and a naphthyl group, and examples of the alkenyl group include a hexenyl group, a heptenyl group and an octadecenyl group. These alkyl group, alkenyl group and aryl group may have a substituent.

Examples of the phosphoric acid ester advantageously used in the present invention include those represented by the following general formula [HB]. General formula [HB]

[0096]

[Chemical formula 46] In the formula, R _H3 , R _H4 and R _H5 each represent an alkyl group, an alkenyl group or an aryl group. However, the total carbon number of the groups represented by R _H3 , R _H4 and R _H5 is 24 to 54. The alkyl group, alkenyl group and aryl group may have a single or multiple substituents.

Preferred R _H3 , R _H4 and R _H5 are alkyl groups, specifically, nonyl group, n-decyl group, sec
-Decyl group, sec-dodecyl group, t-octyl group and the like.

Specific examples of the high boiling point organic solvent include:
Exemplified organic solvents 1 to 22 described on page 41 of JP-A-62-166331 can be mentioned.

Water-insoluble and organic solvent-soluble polymers used for dispersing couplers and the like include (1) vinyl polymers and copolymers (2) polycondensed polymers of polyhydric alcohols and polybasic acids (3) opening Polyester obtained by the ring polymerization method (4) In addition, polycarbonate resin, polyurethane resin, polyamide resin and the like can be mentioned.

The number average molecular weight of these polymers is not particularly limited, but is preferably 200,000 or less, more preferably 5,000 to 100,000. The ratio (weight ratio) of the polymer to the hydrophobic compound is preferably 1:20 to 20: 1, more preferably 1:10 to 10: 1.

Specific examples of polymers preferably used are shown below. In the copolymer, the ratio of monomers is shown by weight ratio. [PO-1] poly (Nt-butylacrylamide) [PO-2] Nt-butylacrylamide-methylmethacrylate copolymer (60:40) [PO-3] polybutylmethacrylate [PO-4] methyl Methacrylate-styrene copolymer (90:10) [PO-5] Nt-butylacrylamide-2-methoxyethyl acrylate copolymer (55:45) [PO-6] ω-methoxy polyethylene glycol acrylate (additional mole Number n = 9) -Nt-butylacrylamide copolymer (25:75) [PO-7] 1,4-butanediol-adipic acid polyester [PO-8] polypropiolactam The photosensitive material of the present invention is It can be applied to, for example, color negative and positive films, and color photographic paper, etc. The effect of the present invention is effectively exhibited when applied to a color photographic paper for contact viewing.

Examples of the silver halide used in the present invention include any silver halide such as silver chloride, silver bromide, silver iodide, silver chlorobromide, silver iodobromide and silver chloroiodide. The silver halide grains preferably used in the present invention have a silver chloride content of 90 mol% or more, a silver bromide content of 10 mol% or less, and a silver iodide content of 0.5 mol% or less. belongs to. More preferably, the silver bromide content is 0.1 to 2 mol%.
Of silver chlorobromide. The silver halide grains may be used alone or in combination with other silver halide grains having different compositions. Further, it may be used as a mixture with silver halide grains having a silver chloride content of 90% or less. Further, in a silver halide emulsion agent layer containing silver halide grains having a silver chloride content of 90 mol% or more, the silver chloride content in all silver halide grains contained in the emulsion layer is 9%.
The proportion of silver halide grains of 0 mol% or more is 60% by weight or more, preferably 80% by weight or more. The composition of the silver halide grains may be uniform from the inside to the outside of the grain, or the composition inside and outside the grain may be different. When the composition inside and outside the particle is different, the composition may be changed continuously or may be discontinuous.

The grain size of the silver halide grain is not particularly limited, but in view of other characteristics such as rapid processing property and sensitivity, it is preferably 0.2 to 1.6 μm, more preferably 0.25 to 1.6 μm. It is in the range of 1.2 μm. The particle size can be measured by various methods generally used in the art. A typical method is
Lapland's "Particle Size Analysis" (ASTM Symposium on Light Microscopy, 1955
94-122) or "Theory of Photographic Process"
(Co-written by Mies and James, 3rd edition, published by Macmillan, Inc. (1966), Chapter 2). This particle size can be measured using the projected area of the particle or an approximate diameter.

When the particles are substantially uniform in shape,
The particle distribution can be represented fairly accurately using diameter or projected area. The particle size distribution of silver halide grains may be polydisperse or monodisperse. Preferred silver halide grains have a coefficient of variation of 0.22 or less in the grain distribution of the silver halide grains, more preferably 0.
It is a monodisperse silver halide grain of 15 or less. Here, the coefficient of variation is a coefficient indicating the breadth of the particle size distribution and is defined by the following mathematical expression 1.

[0105]

[Equation 1] Here, ri represents the particle size of each particle, and ni represents the number thereof. In the case of spherical silver halide grains, the grain size is the diameter,
Further, in the case of a particle having a shape other than a cube or a sphere, it represents the diameter when the projected image is converted into a circular image having the same area.

The silver halide grains used in the present invention may be those obtained by any of the acidic method, the neutral method and the ammonia method. The particles may be grown at one time, or may be grown after forming seed particles. The method for making seed particles and the method for growing seed particles may be the same or different.
The method of reacting the soluble silver salt and the soluble halogenated salt may be any of a forward mixing method, a back mixing method, a simultaneous mixing method and a combination thereof, but a method obtained by the simultaneous mixing method is preferable. Further, as one type of simultaneous mixing method, Japanese Patent Laid-Open No.
The pAg controlled double jet method described in 4-48521 or the like can also be used.

Further, if necessary, a silver halide solvent such as thioether may be used. Further, a compound such as a mercapto group-containing compound, a nitrogen-containing heterocyclic compound or a sensitizing dye may be added during the formation of silver halide grains or after the completion of grain formation.

The silver halide grains used in the present invention may have any shape. One preferable example is a cube having a {100} plane as a crystal surface. Also, US Pat. Nos. 4,183,756 and 4,22
5,666, JP-A-55-26589, JP-B-55
-42737, etc., The Journal of Photographic Science (J. Photgr. Sci.), 21 ,
39 (1973) and the like.
It is also possible to prepare particles having a shape of a tetrahedron, a tetrahedron, a dodecahedron, etc. Further, grains having twin planes may be used. The silver halide grain used in the present invention may be a grain having a single shape or a mixture of grains having various shapes.

The silver halide grains used in the present invention are
In the process of forming and / or growing silver halide grains, a metal ion is used by using a cadmium salt, a zinc salt, a lead salt, a thallium salt, an iridium salt or a complex salt thereof, a rhodium salt or a complex salt thereof, an iron salt or a complex salt thereof. Can be added to the inside of the grain and / or included in the surface of the grain, and reduction sensitized nuclei can be imparted to the inside of the grain and / or the surface of the grain by placing in a suitable reducing atmosphere.

In the emulsion containing silver halide grains, unnecessary soluble salts may be removed after the growth of silver halide grains is completed, or may be contained. The removal of the salts can be carried out according to the method described in Research Disclosure 17643.

In the present invention, the silver halide grain used in the emulsion may be a grain in which a latent image is mainly formed on the surface, or may be a grain mainly formed inside the grain. Grains in which the latent image is mainly formed on the surface are preferable.

In the present invention, the emulsion is chemically sensitized by a conventional method. That is, a sulfur-containing compound capable of reacting with silver ions, a sulfur sensitization method using active 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. Sensing methods and the like can be used alone or in combination.

The emulsion can be optically sensitized to a desired wavelength region by using a sensitizing dye. As the sensitizing dye, a cyanine dye, a merocyanine dye, a complex cyanine dye, a complex merocyanine dye, a holopolar cyanine dye, a hemicyanine dye, a styryl dye, and a hemioxanol dye can be used.

The dye-forming coupler used in the silver halide photographic light-sensitive material of the present invention is usually selected so that a dye which absorbs the light in the light-sensitive spectrum of the emulsion layer is formed for each emulsion layer. A yellow coupler is used for the blue-sensitive emulsion layer, a magenta coupler is used for the green-sensitive emulsion layer, and a cyan coupler is used for the red-sensitive emulsion layer. However, the silver halide color photographic light-sensitive material may be prepared by a method different from the above combination depending on the purpose.

As the binder (or protective colloid) used in the silver halide photographic light-sensitive material of the present invention, it is advantageous to use gelatin, but other than that, gelatin derivatives, graft polymers of gelatin and other polymers, Hydrophilic colloids such as proteins, sugar derivatives, cellulose derivatives and synthetic hydrophilic polymer substances such as homopolymers or copolymers can also be used.

The silver halide photographic light-sensitive material of the present invention comprises
Further, additives such as a hardener, an anti-turbidity agent, an image stabilizer, an ultraviolet absorber, a plasticizer, a latex, a surfactant, a matting agent, a lubricant and an antistatic agent can be optionally used.

The total amount of gelatin coated on the support of the silver halide photographic light-sensitive material of the present invention is preferably less than 7 g / m ² . There is no particular lower limit,
Generally, it is preferably 3 g / m ² or more from the viewpoint of physical properties or photographic performance. The amount of gelatin can be obtained by converting the weight of gelatin containing 11.0% of water by the method for measuring water described in the Paggy method.

The gelatin contained in the silver halide photographic light-sensitive material of the present invention is hardened with a hardener. The hardener that can be used is not particularly limited, and a hardener known in the photographic industry, for example, an aldehyde hardener, an active vinyl hardener, an active halogen hardener, an epoxy hardener, Examples thereof include ethyleneimine type hardeners, methanesulfonic acid ester type hardeners, carbodiimide type hardeners, isoxazole type hardeners and polymer hardeners.

The effect of the present invention is particularly effectively exerted when the silver halide light-sensitive material of the present invention is a light-sensitive material for direct viewing such as color photographic paper or color copying light-sensitive material which has a strict requirement for image storability. To be done.

The light-sensitive material of the present invention can be subjected to color development processing known in the art to form an image.

As the color developing agent used in the color developing solution, primary amine type color developing agents widely used in various color photographic processes, for example, aminophenol type and p-phenylenediamine type derivatives are used. To be

To the color developing solution applied to the processing of the light-sensitive material of the present invention, a known developing solution component compound can be added in addition to the above-mentioned primary amine color developing agent.
The pH value of the color developer is usually 9 or more, preferably about 10
It is 13. The color developing temperature is usually 15 ° C or higher, and generally 20 ° C to 50 ° C. For rapid processing, it is preferable to carry out at 30 ° C or higher.

The developing processing time is generally 10 seconds to
4 minutes, but 10 seconds to 3 for rapid processing
It is preferable to be performed in the range of 0 second. When further speeding up is required, it is preferably performed in the range of 10 seconds to 30 seconds.

Further, the light-sensitive material of the present invention is applied with a color developing replenisher.
When running while continuously replenishing, color development
The replenishment amount of the image liquid is 1 m of the light-sensitive material.² 20 to 150 ml per
It is preferable to add 20 to 120 ml, more preferably
It is preferably 20 to 100 ml. Such low replenishment
The effect of the present invention is better when running processing is performed.
Will be demonstrated effectively.

The light-sensitive material of the present invention is subjected to bleach-fixing solution treatment after color development.

After the treatment with the bleach-fixing solution, a washing treatment or a stabilizing treatment, or a combined treatment of both treatments is usually carried out.

[0127]

EXAMPLES Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited to these. Example 1 (Preparation 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.

[0128]

[Table 1] To each silver halide emulsion, after chemical sensitization, STB-1 shown below as an emulsion stabilizer was added in an amount of 5 × 10 ⁻⁴ mol per mol of silver halide. (Preparation of silver halide color photographic light-sensitive material) Each of the layers shown below was coated on a support having polyethylene laminated on one side of a paper support and polyethylene containing titanium oxide on the other side of the first layer. Multi-layer photographic light-sensitive material 101
Was produced. The coating liquid was prepared as follows. First layer coating liquid 26.7 g of yellow coupler (Y-51), 0.67 g of stain inhibitor (HQ-1) and high boiling organic solvent (DN
P) To 6.7 g of ethyl acetate was added 60 ml to dissolve, and this solution was emulsified and dispersed in 200 ml of 10% gelatin aqueous solution containing 10 ml of 10% sodium triisopropylnaphthalenesulfonate (SU-1) using a homogenizer to obtain a yellow coupler. A dispersion was prepared.

This dispersion was applied to a blue-sensitive silver chlorobromide emulsion (Em
-1 was converted to silver (8.71 g) and the gelatin solution for coating was mixed to prepare a coating solution for the first layer.

The coating solutions for the second to seventh layers were prepared in the same manner as the coating solution for the first layer. The second layer and the fourth layer are used as the film-hardening material.
(H-1) was added to the layer and (H-2) was added to the seventh layer. As the coating aid, surfactants (SU-2), (SU-
3) was added to adjust the surface tension.

[0131]

[Table 2]

[0132]

[Table 3]Then, the first layer yellow coupler (Y-51) is displayed.
4, replace as shown in Table 5, to the first layer in Table 4 and Table 5
0.1 mmol / m of color image stabilizer shown² Add sample
102-132 were produced.

The obtained sample was wedge-exposed with blue light using a sensitometer KS-7 (manufactured by Konica Corporation),
It processed according to the following process steps. Color developer Pure water 800 ml Triethanolamine 10 g N, N-diethylhydroxylamine 5 g Potassium bromide 0.02 g Potassium chloride 2 g Potassium sulfite 0.3 g 1-Hydroxyethylidene-1,1-diphosphonic acid 1.0 g Ethylenediaminetetratetraacetic acid 1.0 g Catechol-3,5-diphosphonic acid disodium salt 1.0 g N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate 4.5 g Optical brightener (4 4'-Diaminostilbenedisulfonic acid derivative) 1.0 g Potassium carbonate 27 g Water is added to bring the total volume to 1 liter, and the pH is adjusted to 10.10. Bleach-fix solution Ethylenediaminetetraacetic acid ammonium ferric dihydrate 60g Ethylenediaminetetraacetic acid 3g Ammonium thiosulfate (70% aqueous solution) 100ml Ammonium sulfite (40% aqueous solution) 27.5ml Add water to make 1 liter, and add potassium carbonate or ice. Adjust the pH to 5.7 with acetic acid. Stabilizing solution 5-chloro-2-methyl-4-isothiazolin-3-one 1.0 g ethylene glycol 1.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.0 g ethylenediaminetetraacetic acid 1.0 g ammonium hydroxide ( 20% aqueous solution) 3.0 g Ammonium sulfite 3.0 g Optical brightener (4,4'-diaminostilbenedisulphonic acid derivative) 1.5 g Water is added to bring the total volume to 1 liter, and the pH is adjusted to 7 with sulfuric acid or potassium hydroxide. Adjust to 0.

The sensitivity of the sample treated above was measured using a densitometer (PDA-65 type, manufactured by Konica Corporation). The sensitivity was obtained from the reciprocal value of the exposure amount corresponding to a density of 0.5. The sensitivity is shown as a relative sensitivity with the sensitivity of Sample 101 as 100. In addition, the above-mentioned processed samples are exposed to sunlight (exposure table)
The sample was stored for 10 weeks at 10 ° C., and the light resistance was evaluated by measuring the residual ratio of the density of the dye image at the initial density of 1.0. The color reproducibility was judged by visually observing the print sample. The results are shown in Tables 4 and 5.

[0135]

[Table 4]

[0136]

[Table 5] From Tables 4 and 5, samples (Samples 102, 112, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121) each having a compound having an ester group in the structure but having an oxidation potential of 2060 mV, were used as a color image stabilizer.
125, 129) shows that the light resistance is improved, but the sensitivity is lowered. Also, the oxidation potential is 1400
Samples 103 and 113 in which the comparative compound YST-2, which has an mV and is within the scope of the present invention but does not have an ester group in the structure, was used as a color image stabilizer, did not show decreased sensitivity, but had sufficient light resistance. Not really. On the other hand, when the compound according to the present invention was used, it was found that the compound had sufficiently high sensitivity and excellent light resistance.

[0137]

[Chemical 47]

[0138]

[Chemical 48]

[0139]

[Chemical 49]

[0140]

[Chemical 50] Example 2 Each of Samples 101 to 132 produced in Example 1 is exposed through an optical wedge, and then the amount of replenishment is twice the amount of a tank for color development in the following processing steps using a paper processor. Was continuously processed. The samples obtained at the final stage of continuous processing are designated as samples 201 to 232. Treatment process Treatment temperature Time Replenishment amount Tank capacity Color development 34.7 ± 0.3 ° C. 45 seconds 160 ml / m ² 16 liters Bleach fixing 34.7 ± 0.5 ° C. 45 seconds 215 ml / m ² 16 liters Stabilization 30-34 ℃ 30 seconds 10 liters 30-34 ℃ 30 seconds 10 liters 30-34 ℃ 30 seconds 245 ml / m ² 10 liters Dry 60-80 ℃ 60 seconds Stabilization was replenished with a replenisher in a countercurrent manner. The composition of each treatment liquid is as follows. Color developing solution Tank solution Replenishing solution Pure water 800 ml 800 ml Triethanolamine 8g 10g N, N-diethylhydroxylamine 5g 7g Potassium chloride 2g 1.1g N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4- Aminoaniline sulfate 5g 7.4g Sodium tetrapolyphosphate 2g 2.8g Potassium carbonate 30g 30g Potassium sulfite 0.2g 0.3g Optical brightener (4,4'-diaminostilbenedisulfonic acid derivative) 1g 1.2g Pure Add water to bring the total volume to 1 liter and adjust the pH to 10.2. Bleach-fixing solution (tank solution and replenisher) Pure water 800 ml Ethylenediaminetetraacetic acid ammonium ferric dihydrate 60 g Ethylenediaminetetraacetic acid 3 g Ammonium thiosulfate (70% solution) 100 ml Ammonium sulfite (40% solution) 27.5 ml Add water Adjust the total volume to 1 liter and adjust the pH to 5.7 with potassium carbonate or glacial acetic acid. Stabilizer (tank solution and replenisher) Pure water 800 ml 5-Chloro-2-methyl-4-isothiazolin-3-one 1 g 1-Hydroxyethylidene-1,1-diphosphonic acid 2 g Water was added to bring the total volume to 1 liter. Adjust the pH to 7.0 with sulfuric acid or potassium hydroxide.

The light resistance and sensitivity were evaluated in the same manner as in Example 1. The sensitivity is shown as a relative sensitivity with the sensitivity of each sample at the start of continuous processing being 100. The results are shown in Tables 6 and 7.

[0142]

[Table 6]

[0143]

[Table 7] As is clear from Tables 6 and 7, the silver halide photographic light-sensitive material of the present invention has a small change in sensitivity between the start and end of continuous processing and is excellent in light resistance. Example 3 The fifth layer (red-sensitive layer) of the sample 102 of Example 1 is shown in Table 8 below.
Sample 301 was prepared by substituting the one described in 1. Fifth layer coating solution 10.7 g of cyan coupler (exemplary coupler C-1), 0.33 g of stain inhibitor (HQ-1), 6.7 g of high boiling organic solvent (DOP) and 6.7 g of HBS-1 and ethyl acetate. 60 ml was added and dissolved, and this solution was emulsified and dispersed in 215 ml of 10% gelatin aqueous solution containing 10 ml of 10% sodium alkylnaphthalene sulfonate (SU-1) using a homogenizer to prepare a cyan coupler dispersion.

This dispersion was added to a red-sensitive silver chlorobromide emulsion (Em
-3 was converted to silver (7.0 g) and mixed with a gelatin solution for coating to prepare a coating solution for the fifth layer.

[0145]

[Table 8] Then, the cyan coupler (C-1) of the fifth layer was replaced as shown in Tables 9 and 10, and the fifth layer was replaced with Tables 9 and 10.
Samples 302 to 315 were prepared by adding 0.1 mmol / m ^{2 of the} color image stabilizer shown in (3). The obtained sample was exposed to a wedge with red light using a sensitometer KS-7 (manufactured by Konica Corporation), processed according to the processing steps shown in Example 2, and then evaluated in the same manner as in Example 1. I went. still,
The sensitivity was shown as a relative sensitivity with the sensitivity of Sample 301 as 100. The results are shown in Tables 9 and 10.

[0146]

[Table 9]

[0147]

[Table 10] As is clear from Tables 9 and 10, no matter which cyan coupler was used, the comparative compound YST-1 having an ester group in the structure as a color image stabilizer but having an oxidation potential of 2060 mV was obtained. When used (Samples 302, 31
2, 322, 328), a decrease in sensitivity was observed. Further, when YST-2 having an oxidation potential of 1400 mV which is the range of the present invention but having no ester group in the structure is used as a color image stabilizer (Samples 303, 313, 3).
23, 329), the sensitivity did not decrease, but the light resistance was insufficient. On the other hand, when the compound according to the present invention was used, the result was that the compound had sufficiently high sensitivity and excellent light resistance. Example 4 A silver halide color photographic light-sensitive material sample 401 was formed by sequentially coating the following layers on a polyethylene-laminated paper support (titanium oxide content of 2.7 g / m ² ) from the support side.
Was produced. Layer 1 ... 1.2 g / m ² gelatin, 0.32 g / m ² (converted to silver, the same applies hereinafter) blue-sensitive silver chlorobromide emulsion (silver chloride content 99.3 mol%), 0 0.80 g dissolved in 0.3 g / m ² of dioctyl phthalate (hereinafter referred to as DOP)
/ M ² containing a yellow coupler (Y-51). Layer 2 An intermediate layer comprising 0.7 g / m ² of gelatin, 30 mg / m ² of anti-irradiation dye (AI-1) and 20 mg / m ² of anti-irradiation dye (AI-2). Layer 3: 1.25 g / m ² gelatin, 0.20 g / m ² green-sensitive silver chlorobromide emulsion (silver chloride content 99.5 mol%),
Layer containing 0.26 g / m ² magenta coupler (M-2) dissolved in 0.30 g / m ² DOP. Layer 4: an intermediate layer made of 1.2 g / m ² of gelatin. Layer 5: 1.4 g / m ² gelatin, 0.20 g / m ² red-sensitive silver chlorobromide emulsion (silver chloride content 99.7 mol%),
A layer containing 0.40 g / m ² of a cyan coupler (C-4) dissolved in 0.20 g / m ² of dibutyl phthalate (hereinafter referred to as DBP). Layer 6: 1.0 g / m ² gelatin and 0.2 g / m ² D
0.3g / m ² UV absorber dissolved in OP (UV-
A layer containing 1). Layer 7: Layer containing 0.5 g / m ² of gelatin.

As a hardening agent, 2,4-dichloro-
Layers 6 of sodium 6-hydroxy-s-triazine
0.017 g per 1 g of gelatin was added to each of Nos. 7 and 7.

[0149]

[Chemical 51] Further, among the above layer constitutions, the yellow coupler Y of the layer 1
Samples 402 to 422 were prepared in the same manner as Sample 401, except that -51 was changed to the yellow coupler shown in Table 11 and 0.6 g / m ² of the compound of the present invention shown in Table 11 was added.

The yellow coupler of each sample is sample 401.
Yellow coupler (Y-51).

Samples 401 to 42 prepared in this way
After No. 2 was subjected to wedge exposure with blue light, development processing was performed in the next step. The composition of the processing liquid used in each processing step is as follows. <Color developer> Pure water 800 ml Triethanolamine 8 g N, N-diethylhydroxylamine 5 g Potassium chloride 2 g N-Ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate 5 g Tetrapolyphosphoric acid Sodium 2g Potassium carbonate 30g Potassium sulfite 0.2g Pure water is added to bring the total volume to 1 liter, and the pH is adjusted to 10.05. <Bleach-fixing solution> 1 liter of bleach-fixing solution contains 60 g of ethylenediaminetetraacetic acid iron (III) ammonium dihydrate, 3 g of ethylenediaminetetraacetic acid, 3 g of ammonium thiosulfate (70% solution), 27.5 ml of ammonium sulfite (40% solution). Adjust to pH 5.7 with potassium carbonate or glacial acetic acid. <Stabilizing solution> 1 liter of the stabilizing solution contains 1 g of 5-chloro-2-methyl-4-isothiazolin-3-one and 2 g of 1-hydroxyethylidene-1,1-diphosphonic acid. Adjust to pH 7.0 with sulfuric acid or potassium hydroxide.

The maximum density (Dmax) of the blue-sensitive emulsion layer was measured for each of the processed samples. In addition, the obtained sample is subjected to a fading test for 10 days with a fade meter,
The light resistance was evaluated by determining the residual ratio (%) of the dye image at the initial density of 1.0. Further, a negative film obtained by photographing and developing a color checker (manufactured by Macbeth Co., Ltd.) with Konica Color GX-100 (manufactured by Konica Co., Ltd.) was adjusted in tone of the gray portion, and then the samples 401 to 4 described above.
No. 22 was printed, and development processing was performed in the same process as described above to evaluate color reproducibility in each hue. The results are also shown in Table 11.

[0153]

[Table 11] As is clear from Table 11, Samples 401 and 402 using a yellow coupler which is not the yellow coupler represented by the general formula [Y-I] have a high maximum density, but have poor color reproducibility. .

On the other hand, although the sample 403 using the yellow coupler represented by the general formula [Y-I] is found to have improved color reproducibility, it cannot be said that the maximum density and light resistance are sufficient.
On the other hand, all of the samples 404 to 422 of the present invention have a high maximum density and very good light resistance, and a sufficiently high level of color reproducibility is achieved.

[0155]

The silver halide photographic light-sensitive material of the present invention comprises
It has excellent storability of dye images, and even in continuous processing,
The change in photographic performance between the beginning and end of continuous processing is small, the color reproducibility is excellent, and sufficient color development is achieved.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeto Hirabayashi 1 Sakura-cho, Hino-shi, Tokyo Konica Stock Company

Claims (7)

[Claims] 1. A silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing a dye-forming coupler on a support, wherein the silver halide emulsion layer comprises:
A silver halide photographic light-sensitive material comprising an ester group and containing at least one compound having an oxidation potential of 1800 mV or less. 2. An ester group having an oxidation potential of 1
The silver halide photographic light-sensitive material according to claim 1, wherein the compound of 800 mV or less is a compound represented by the following general formula [I]. General formula [I] [Wherein R ¹¹ and R ¹² each represent an alkyl group, and R ¹³
Represents a divalent linking group, and R ¹⁴ represents a hydrogen atom or a substituent. ] 3. An ester group and having an oxidation potential of 1.
The silver halide photographic light-sensitive material according to claim 1, wherein the compound of 800 mV or less is a compound represented by the following general formula [II]. General formula [II] [In the formula, R ²¹ and R ²² are each a hydrogen atom or a carbon number 1
To 5 are alkyl groups, J is an alkylene group or a mere bond, and R ²³ is a heterocyclic residue. ] 4. The silver halide photographic light-sensitive material according to claim 1, wherein the dye-forming coupler is a yellow coupler. 5. A dye-forming coupler represented by the following general formula [Y-
The silver halide photographic light-sensitive material according to claim 1, which is a yellow coupler represented by the formula [I]. General formula [Y-I] [In the formula, R ¹ represents an alkyl group or a cycloalkyl group,
R ² represents an alkyl group, a cycloalkyl group, an aryl group or an acyl group, and R ³ represents a group capable of substituting on the benzene ring. n represents 0 or 1. X ¹ represents a group capable of splitting off upon coupling with an oxidized product of a developing agent, and Y ¹ represents an organic group. ] 6. The silver halide photographic light-sensitive material according to claim 1, wherein the dye-forming coupler is a cyan coupler. 7. A silver halide photographic light-sensitive material having a photographic constituent layer comprising 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. The compound represented by the general formula [Y-] in at least one of the blue-sensitive silver halide emulsion layers.
A silver halide photographic light-sensitive material comprising at least one yellow coupler represented by the formula [I] and one compound represented by the general formula [II] described in claim 3.