JPH07140604A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To enhance sensitivity and an interimage effect and to improve storage stability of a raw stock and a latent image by incorporating a specified coupler in a blue-sensitive layer. CONSTITUTION:At least one of the blue-sensitive layers contains at least one kind of coupler represented by the formula: A-(TIME)n-INHIBIT (in which A is a coupler residue, TIME is a timing group for successively cleaving after the coupling group of A reacts with the oxidation product of a color developing agent, and finally releasing INHIBIT in a moderately controlled timing, and (n) is 0 or 1), and it contains at least one kind of compound represented by the formula I or II in which each of Z1 and Z2 is O, S, or the like; each of V21-V25 and V31-V34 is H or aryl or the like; each of R21-R25 and R31-R35 is H, halogen, or the like; each of R26 and R36 is alkyl or aryl; and X is a charge balancing counter ion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide color photographic light-sensitive material, and more particularly to a silver halide color having high sensitivity, a large interimage effect, and improved raw and latent image storability. It relates to a photographic light-sensitive material.

[0002]

2. Description of the Related Art In recent years, development of a silver halide color photographic light-sensitive material excellent in color reproducibility and sharpness has been strongly desired.

As a means for improving sharpness, a DIR compound is known which reacts with an oxidized product of a color developing agent to release a development inhibitor. For example, U.S. Pat.
No. 3,701,783, No. 3,632,345, etc.
The DIR compound having a mercapto-based development-inhibiting group described in JP-A-49-77635 has a strong development-inhibiting effect in the layer, and fine particles of an image, improvement of sharpness and gradation control are possible, but adjacent layers The effect of suppressing development on the so-called so-called inter-image effect was small and the color reproducibility was unsatisfactory.

[0004] Further, the development-inhibiting group described in US Pat. No. 3,148,062 and JP-A-49-122355 and JP-A-52-82424 has an azole type, for example, a benztriazole type DIR.
The compound and the DIR compound in which the hydrophilic group is substituted for the mercapto-type development inhibiting group described in JP-A-55-135835 has a large diffusibility of the inhibiting group in gelatin or silver halide, Compared to the above-mentioned mercapto compounds, the edge effect and the interimage effect can be made larger, but the development inhibiting property of the inhibiting group is small,
In order to obtain a sufficient edge effect and inter-image effect, it is necessary to add a large amount, and the DIR compound added to the emulsion decomposes during storage over time to release a development-inhibiting group and desensitize. It had drawbacks.

Further, D obtained by substituting a branched alkyl group for the mercapto type development inhibiting group described in European Patent No. 354,532.
The IR compound can produce the edge effect and the inter-image effect to some extent without deteriorating the development inhibiting property, but it is sufficiently satisfied with the recent demand for the sharpness and color reproducibility of photographic images. It wasn't possible.

On the other hand, in general, most of silver halide photographic light-sensitive materials have a defect that the latent image formed by exposure is regressed with time, that is, so-called latent image regression, and high sensitivity is achieved. However, it is a major obstacle.

Therefore, many techniques for preventing latent image regression have been known in the past, for example, Japanese Patent Laid-Open No. 47-37922.
No. 49-17720, No. 57-22234, No. 57-158840, No. 5
No. 8-90634, 58-152235 and the like sulfur, oxygen or a method of using a compound containing a nitrogen atom in a silver halide emulsion,
Alternatively, in JP-A-57-104927 and JP-A-62-21145, a method of adding a sulfinic acid derivative and a method of using various organic compounds are Research Disclosure (RD) 17643.
No.

However, in any of these methods, there are many cases in which an unfavorable adverse effect such as generation of fog and large deterioration of sensitivity is brought about.

Fog caused by these latent image stabilizers is, for example, 5-methylbenzotriazole, 1-phenyl-5-mercaptotetrazole, benzimidazole or 2,5-dimercapto-1,3,4-thiadiazole. Although it is known that addition is prevented, it has a drawback that sensitivity is reduced because the amount required for preventing fog is large.

Therefore, there has been a strong demand for the development of a new technique having a high sensitivity, a large inter-image effect, a good raw storability and an improved latent image storability.

[0011]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a silver halide color photographic light-sensitive material having high sensitivity, a large inter-image effect, and excellent raw storability and latent image storability. is there.

[0012]

The above objects of the present invention are as follows.
In a silver halide color photographic light-sensitive material having a silver halide emulsion layer comprising a blue-sensitive layer, a green-sensitive layer and a red-sensitive layer on a support, at least one of the blue-sensitive layers is represented by the following general formula [I]. It is achieved by a silver halide color photographic light-sensitive material characterized by containing at least one coupler represented and at least one compound represented by the following general formula [II] or [III].

General formula [I] A- (TIME) n-INHIBIT [In the formula, A represents a coupler residue. TIME represents a timing group, which is bonded to the coupling group A of the general formula [I], cleaved from the coupler by the reaction with the oxidant of the color developing agent, and then sequentially cleaved to finally give an appropriate INHIBIT. Controlled release. n is 0 or 1. INHIBIT is a group which becomes a development inhibitor by the above release and is a triazole ring group represented by the general formula [Ia] or the general formula [Ib].

[0014]

[Chemical 4]

[In the formulas [Ia] and [Ib], R ₁₁ is an alkylthio group, and R ₁₂ is H, an alkyl group, an alkylthio group, an aryl group or a heterocyclic group. At least one of the substituents R ₁₁ and R ₁₂ is a group capable of being hydrolyzed in an aqueous alkali at a distance of 2 to 4 atoms from a triazole ring —CO—OR ₁₃ , —O—CO—OR ₁₃ , or —CO—CO.
Containing -R _13. R ₁₃ is an alkyl group, a cycloalkyl group, or an aryl group. ]

[0016]

[Chemical 5]

[In the formula, Z ₁ represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom or a> N—R ₂₆ group. V ₂₁ , V
₂₂ , V ₂₃ and V ₂₄ represent a hydrogen atom, a halogen atom, an aryl group, an alkyl group, a substituted alkyl group, an alkoxy group, an alkoxycarbonyl group, a carboxy group, a hydroxy group and a cyano group. However, V ₂₁ and V ₂₂ , V ₂₂ and V ₂₃ , V ₂₃ and V
Each of ₂₄ may be condensed to form a benzene ring. R ₂₁ ,
R ₂₂ , R ₂₃ , R ₂₄ , and R ₂₅ are hydrogen atom, halogen atom, hydroxy group, alkyl group, alkoxy group, aryl group,
It represents an amino group or a group capable of condensing adjacent substituents to form a 5- or 6-membered ring. R ₂₆ represents a substituted or unsubstituted alkyl group or aryl group. ]

[0018]

[Chemical 6]

[In the formula, Z ₂ has the same meaning as Z ₁ , and V ₃₁ , V
₃₂ , V ₃₃ and V ₃₄ are synonymous with V ₂₁ , V ₂₂ , V ₂₃ and V ₂₄ , respectively. R ₃₁ , R ₃₂ , R ₃₃ , R ₃₄ , and R ₃₅ are respectively R ₂₁ ,
It is synonymous with R ₂₂ , R ₂₃ , R ₂₄ , and R ₂₅ . R ₃₆ represents a substituted or unsubstituted alkyl group or aryl group. X represents a charge-balancing counterion, and k represents a value that neutralizes 0 or more charges. The present invention will be described in detail below.

First, the compound represented by the above general formula [I] according to the present invention will be described. In the general formula [I], INHIBIT is a group serving as a development inhibitor, and
a] and a monocyclic triazole ring group represented by [Ib]. In the general formulas [Ia] and [Ib], R ₁₁ or R
_The alkylthio group represented by ₁₂ preferably has 1 carbon atom.
~ 7 and may be substituted by one of the above hydrolysable groups.

The alkyl group represented by R ₁₂ or R ₁₃ is
It preferably has 1 to 7 carbon atoms and may be substituted with a halogen atom, a cyano group or the like.

The heterocyclic group represented by R ₁₂ is, for example, a furyl group or the like.

The aryl group represented by R ₁₃ is, for example, a phenyl group or the like, which may be substituted with an alkyl group, a halogen atom or the like.

2-4 which define the spacing between the groups --CO--OR ₁₃ , --O--CO--OR ₁₃ or --CO--CO--R ₁₃ which can be hydrolyzed in aqueous alkali and the triazole ring group. The atoms of can be carbon atoms and heteroatoms.

Typical examples of the triazole ring group represented by INHIBIT are shown below.

[0026]

[Chemical 7]

[0027]

[Chemical 8]

[0028]

[Chemical 9]

[0029]

[Chemical 10]

Next, in the general formula [I], TIME represents a timing group, and typical examples thereof include groups represented by the following general formulas [D-1] to [D-9].

[0031]

[Chemical 11]

In the general formulas [D-1] to [D-5] and [D-8], Rd ₁ is hydrogen atom, halogen atom or alkyl, cycloalkyl, alkenyl, aralkyl, alkoxy, alkoxycarbonyl. , Anilino, acylamino, ureido, cyano, nitro, sulfonamide, sulfamoyl, carbamoyl, aryl,
Represents a carboxy, sulfo, hydroxy or alkanesulfonyl group. Further, Rd ₁ is represented by the general formula [D-
1] to general formula [D-3], general formula [D-5] and general formula [D-8], when l is 2 or more, Rd _{1 s} are bonded to each other to form a condensed ring. Good.

In the general formula [D-1], the general formula [D-4], the general formula [D-5] and the general formula [D-9], Rd ₂
Represents an alkyl, alkenyl, aralkyl, cycloalkyl, heterocycle or aryl group.

In the general formulas [D-6] and [D-7], Rd ₃ is a hydrogen atom or alkyl, alkenyl,
Represents an aralkyl, cycloalkyl, heterocycle or aryl group.

In the general formula [D-9], Rd ₄ and Rd
d ₅ represents a hydrogen atom or an alkyl group (preferably an alkyl group having 1 to 4 carbon atoms), and n ₂ represents an integer of ₂ to 4. A plurality of Rd ₄ and Rd ₅ may be the same or different.

In the general formulas [D-1] and [D-5] to [D-8], k represents an integer of 0, 1 or 2.

In the general formulas [D-1] to [D-3], the general formula [D-5] and the general formula [D-8], l is 1
Represents an integer of 4;

In the general formula [D-6], m ₂ represents an integer of 1 or 2.

When l and m ₂ are 2 or more, each Rd ₁ and Rd ₃
May be the same or different.

In the general formulas [D-6] to [D-8], B is an oxygen atom or -N (Rd ₂ )-(Rd ₂ is a general formula [D-1] or a general formula [D- 4], general formula [D-5], and general formula [D-9] have the same meanings as Rd ₂ .

In the general formula [D-6]

[0042]

[Chemical 12]

Represents a single bond or a double bond. When m ₂ is 2, it is a single bond and when m ₂ is 1, it is a double bond.

Among general formulas [D-1] to [D-9] represented by TIME, general formulas [D-2] to [D].
-4] is preferred.

In the general formula [I], the coupler component represented by A includes a yellow image-forming dye coupler residue, a magenta image-forming dye coupler residue, a cyan image-forming dye coupler residue and a non-color-forming coupler residue. Can be mentioned. Of these, preferred are yellow image forming dye coupler residues.

Next, specific examples of the compound represented by the general formula [I] according to the present invention will be shown, but the present invention is not limited thereto.

[0047]

[Chemical 13]

[0048]

[Chemical 14]

[0049]

[Chemical 15]

[0050]

[Chemical 16]

[0051]

[Chemical 17]

[0052]

[Chemical 18]

D represented by the general formula [I] according to the present invention
The IR compound is preferably used in an amount of 0.0001 to 0.1 mol, and particularly preferably 0.001 to 0.05 mol, per mol of silver halide.

The method for incorporating the DIR compound according to the present invention into a color photographic light-sensitive material is not particularly limited, but all the methods known in ordinary silver halide photographic light-sensitive materials can be used. That is, as shown in U.S. Pat.No. 2,322,027, a method of dissolving in a high boiling point solvent to disperse as fine oil droplets, as shown in U.S. Pat.No. 2,186,849, a dissolution-resistant group and a water-soluble group are added and dissolved. Dispersion method, as shown in US Pat. No. 2,397,864, incorporation method as a component of a polymer compound, JP-A-51-59942 and 51-59943.
As shown in No. 6, there is a method of filling a latex polymer, or a method of mechanically pulverizing and dispersing with a colloid mill or the like.

Next, the compound represented by the general formula [II] or the general formula [III] will be described.

The substituent represented by V ₂₁ , V ₂₂ , V ₂₃ and V ₂₄ is preferably a halogen atom, an aryl group or an alkyl group (preferably having 1 to 7 carbon atoms, particularly preferably the number of carbon atoms). 1 to 4), an alkoxy group (preferably having 1 to 6 carbon atoms, particularly preferably 1 to 1 carbon atoms
2), an alkoxycarbonyl group. It is also preferable that two adjacent substituents are condensed to form a benzene ring.

When Z ₁ is> N—R ₂₆ , a cyano group is also preferably used.

The substituent represented by R ₂₁ , R ₂₂ , R ₂₃ , R ₂₄ and R ₂₅ is preferably a halogen atom hydroxy group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group or an amino group. It is also preferable that two adjacent substituents are condensed to form a ring.

The alkyl group represented by R ₂₆ is preferably an alkyl group having 1 to 6 carbon atoms, and the alkyl group may have a substituent.

Examples of the substituent include an alkoxy group, an alkylthio group, an aryloxy group, an aryl group, a hydroxy group, a cyano group, a vinyl group, a halogen atom, a carbamoyl group, a sulfamoyl group, a sulfonyl group, an alkoxycarbonyl group and a carboxy group. Is mentioned.

[0061] V ₃₁ In the compound represented by the general formula _{[III], V 32, V} 33, V 34 has the same meaning as _{V 21, V 2 2, V} 23, V 24 R 31, R 32, R 33 , R ₃₄ , R ₃₅ are R ₂₁ , R ₂₂ ,
It is synonymous with R ₂₃ , R ₂₄ , and R ₂₅ .

R ₃₆ has the same meaning as R ₂₆ , X represents a charge-balancing counterion, and k represents a value for neutralizing a charge of 0 or more.

Specific examples of the compound represented by the general formula [II] or the general formula [III] used in the present invention are shown below.
The present invention is not limited to these.

[0064]

[Chemical 19]

[0065]

[Chemical 20]

[0066]

[Chemical 21]

[0067]

[Chemical formula 22]

[0068]

[Chemical formula 23]

[0069]

[Chemical formula 24]

[0070]

[Chemical 25]

[0071]

[Chemical formula 26]

[0072]

[Chemical 27]

[0073]

[Chemical 28]

[0074]

[Chemical 29]

[0075]

[Chemical 30]

The compound represented by the general formula [II] or the general formula [III] used in the present invention is preferably used in an amount capable of improving the latent image preservation, and particularly silver halide in the emulsion 1
It is preferably used in a ratio of 1 × 10 ⁻⁴ mol to 1 × 10 ⁻² mol per mol.

The compound represented by the general formula [II] or the general formula [III] used in the present invention can be dispersed in a substituted emulsion, or can be dispersed in a suitable solvent (eg, methyl alcohol, ethyl alcohol, methyl cellosolve). , Water, etc.) or a mixed solvent thereof and added to the emulsion. The sensitizing dye can be added to the emulsion in the form of a solution or a dispersion in a colloid according to the method of adding the sensitizing dye.

As the silver halide emulsion used in the light-sensitive material of the present invention, any ordinary silver halide emulsion can be used. The emulsion can be chemically sensitized by a conventional method, and can be optically sensitized to a desired wavelength region by using a sensitizing dye.

Antifoggants, stabilizers and the like can be added to the silver halide emulsion. It is advantageous to use gelatin as the binder of the emulsion.

The emulsion layer and other hydrophilic colloid layers may be hardened and may contain a plasticizer and a dispersion (latex) of a water-insoluble or sparingly soluble synthetic polymer. A coupler is used in the emulsion layer of the color photographic light-sensitive material.

Further, by coupling with colored couplers, competing couplers and oxidized products of developing agents, which have the effect of color correction, development accelerators, bleaching accelerators, developers, silver halide solvents, toning agents, hardeners and hardeners Compounds that release photographically useful fragments such as film agents, antifoggants, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers can be used.

The light-sensitive material may be provided with auxiliary layers such as a filter layer, an antihalation layer and an irradiation prevention layer. In these layers and / or emulsion layers,
Dyes may be included which are bleached or bleached from the light-sensitive material during the development process. For the light-sensitive material, formalin scavenger, fluorescent whitening agent, matting agent, lubricant, image stabilizer, surfactant, color antifoggant, development accelerator,
Development retarders and bleaching accelerators can be added.

As the support, paper laminated with polyethylene or the like, polyethylene terephthalate film, baryta paper, cellulose triacetate or the like can be used.

In order to obtain a dye image using the light-sensitive material of the present invention, a color photographic process which is generally known can be carried out after exposure.

[0085]

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

In all of the following examples, the addition amount in the silver halide photographic light-sensitive material is the number of grams per 1 m ² unless otherwise specified. Also, silver halide and colloidal silver are shown in terms of silver, and sensitizing dyes are shown in the number of moles per mole of silver.

Example 1 A multilayer color photographic light-sensitive material (Sample 1) was prepared by sequentially forming each layer having the following composition on the triacetyl cellulose film support from the support side.

First layer: antihalation layer (HC-1) Black colloidal silver 0.20 UV absorber (UV-1) 0.20 Colored coupler (CC-1) 0.05 Colored coupler (CM-1) 0.05 High boiling point solvent (Oil-) 1) 0.20 gelatin 1.5 second layer; intermediate layer (IL-1) UV absorber (UV-1) 0.01 high boiling solvent (Oil-1) 0.01 gelatin 1.5 third layer; low sensitivity red-sensitive emulsion layer (RL) iodine Silver bromide emulsion (Em-1) 0.8 Silver iodobromide emulsion (Em-2) 0.8 Sensitizing dye (SD-1) 2.5 × 10 ^-4 Sensitizing dye (SD-2) 2.5 × 10 ^-4 Sensitizing dye (SD-3) 0.5 × 10 ^-4 Cyan coupler (C-1) 1.0 Colored cyan coupler (CC-1) 0.05 DIR compound (DA) 0.002 High boiling point solvent (Oil-1) 0.5 Gelatin 1.5 Fourth layer; High-sensitivity red-sensitive emulsion layer (RH).

Silver iodobromide emulsion (Em-3) 2.0 Sensitizing dye (SD-1) 2.0 × 10 ⁻⁴ Sensitizing dye (SD-2) 2.0 × 10 ⁻⁴ Sensitizing dye (SD-3) 0.1 × 10 ^-4 Cyan coupler (C-1) 0.25 Cyan coupler (C-2) 0.05 Colored cyan coupler (CC-1) 0.015 DIR compound (DA) 0.05 High boiling point solvent (Oil-1) 0.2 Gelatin 1.5 Fifth layer Intermediate layer (IL-2) gelatin 0.5 sixth layer; low-sensitivity green sensitive emulsion layer (GL) silver iodobromide emulsion (Em-1) 1.3 sensitizing dye (SD-4) 5 × 10 ^-4 sensitizing dye (SD-5) 1 × 10 ^-4 Magenta coupler (M-1) 0.50 Colored magenta coupler (CM-1) 0.01 DIR compound (DB) 0.04 High boiling point solvent (Oil-2) 0.3 Gelatin 1.0 7th layer; High sensitivity green sensitive emulsion layer (GH).

Silver iodobromide emulsion (Em-3) 1.3 Sensitizing dye (SD-6) 1.5 × 10 ⁻⁴ Sensitizing dye (SD-7) 2.5 × 10 ⁻⁴ Sensitizing dye (SD-8) 0.5 × 10 ^-4 Magenta coupler (M-1) 0.15 Colored magenta coupler (CM-2) 0.05 DIR compound (DB) 0.01 High boiling point solvent (Oil-2) 0.2 Gelatin 1.0 Eighth layer; Yellow filter layer (YC) Yellow Colloidal silver 0.1 Color stain inhibitor (SC-1) 0.1 High boiling point solvent (Oil-3) 0.1 Gelatin 0.8 9th layer; Low sensitivity blue-sensitive emulsion layer (BL) Silver iodobromide emulsion (Em-1) 0.25 Odor Silver halide emulsion (Em-2) 0.25 Sensitizing dye (SD-10) 7 × 10 ^-4 Yellow coupler (Y-1) 0.5 Yellow coupler (Y-2) 0.1 DIR compound (DC) 0.01 High boiling solvent ( Oil-2) 0.3 Gelatin 1.0 10th layer; High-sensitivity blue-sensitive emulsion layer (BH) Silver iodobromide emulsion ( m-4) 0.4 iodobromide emulsion (Em-1) 0.4 Sensitizing dye (SD-9) 1 × 10 -4 Sensitizing dye (SD-10) 3 × 10 -4 Yellow coupler (Y-1) 0.30 Yellow coupler (Y-2) 0.05 High boiling point solvent (Oil-2) 0.15 Gelatin 1.1 11th layer; 1st protective layer (PRO-1).

Fine grain silver iodobromide emulsion (average grain size 0.08 μm, AgI content 2 mol%) 0.4 UV absorber (UV-1) 0.10 UV absorber (UV-2) 0.05 High boiling point solvent (Oil-1) 0.1 High boiling point solvent (Oil-3) 0.1 Formalin scavenger (HS-1) 0.5 Formalin scavenger (HS-2) 0.2 Gelatin 1.0 12th layer; 2nd protective layer (PRO-2) Surfactant (Su-1) 0.005 Alkali-soluble matting agent (average particle size 2 μm) 0.05 Polymethylmethacrylate (average particle size 3 μm) 0.05 Sliding agent (WAX-1) 0.04 Gelatin 0.6 In addition to the above composition, each layer contains a coating aid Su-2 and a dispersion. Auxiliary agent Su-3, hardening agents H-1 and H-2, stabilizer ST-
1, antifoggants AF-1 and AF-2 were added.

Em-1 Average grain size 0.46 μm Average silver iodide content 7.0 mol%, monodisperse (width of distribution 14%) surface low silver iodide (2 mol%) core / shell type emulsion Em -Average grain size 0.30 µm Average silver iodide content 2.0 mol%, monodisperse (14% distribution) surface silver bromide-containing core / shell type emulsion Em-3 Average grain size 0.81 µm Average iodide Surface low silver iodide with a silver content of 7.0 mol% and monodispersity (width of distribution 14%) (1.
0 mol%)-containing core / shell type emulsion Em-4 average grain size 0.95 μm average silver iodide content 8.0 mol%, monodisperse (width of distribution 14%) low surface silver iodide (0.
5 mol%)-containing core / shell type emulsion Incidentally, the breadth of the distribution is the breadth of the distribution = standard deviation value / average grain size × 100.

[0093]

[Chemical 31]

[0094]

[Chemical 32]

[0095]

[Chemical 33]

[0096]

[Chemical 34]

[0097]

[Chemical 35]

[0098]

[Chemical 36]

[0099]

[Chemical 37]

[0100]

[Chemical 38]

Next, in Sample 1 above, the DIR coupler added to the silver halide emulsion layer of the ninth layer was replaced with an equimolar amount of DIR coupler shown in Table 1, and 1 mol of silver halide was added to the ninth layer. 1 × 10 ⁻³ mol per unit of general formula [II]
Alternatively, [III] was added to prepare samples 2 to 12.

Each sample No. 1 to 12 created in this way
Was exposed to a wedge for 1/100 second using white light, and then the following development processing was performed.

Development process (38 ° C) Color development 3 minutes 15 seconds Bleach 6 minutes 30 seconds Water washing 3 minutes 15 seconds Settling 6 minutes 30 seconds Water washing 3 minutes 15 seconds Stabilization 1 minute 30 seconds Drying Each treatment The composition of the treatment liquid used in the process is as follows.

<Color developer> 4-amino-3-methyl-N-ethyl-N- (β-hydroxyethyl) aniline / sulfate 4.75 g anhydrous sodium sulfite 4.25 g hydroxylamine / 1/2 sulfate 2.0 g anhydrous Potassium carbonate 37.5 g Sodium bromide 1.3 g Nitrilotriacetic acid trisodium salt (monohydrate) 2.5 g Potassium hydroxide 1.0 g Water is added to make 1 liter, and the pH is adjusted to 10.05.

<Bleach> Ethylenediaminetetraacetic acid iron (III) ammonium salt 100 g Ethylenediaminetetraacetic acid diammonium salt 10.0 g Ammonium bromide 150.0 g Glacial acetic acid 10 ml Water is added to make 1 liter, and the pH is adjusted to 6.0.

<Fixer> Ammonium thiosulfate (50% aqueous solution) 175.0 g anhydrous sodium sulfite 8.5 g sodium metasulfite 2.3 g Water is added to make 1 liter, and pH is adjusted to 6.0 with acetic acid.

<Stabilizing Solution> Formalin (37% aqueous solution) 1.5 ml Conidax (manufactured by Konica Corporation) 7.5 ml Water is added to make 1 liter.

Sensitometric measurement was performed on the obtained treated sample to determine the blue sensitivity. The sensitivity was shown as a relative value with the exposure amount required to give a density of the minimum density +0.1 determined as 100 for Sample 1.

Further, the raw storability of samples 1 to 12 was measured.
The raw storability is that each sample is stored for 14 days at a temperature of 50 ° C. and a relative humidity of 70%, and then exposed with blue light through a step wedge for sensitometry together with each sample before storage, followed by the above-mentioned. Development processing was performed, and blue sensitivity S'was measured. The rate of change of the sample before storage with respect to the blue sensitivity S was calculated by the following formula. The sensitivity was calculated from the reciprocal of the exposure amount required to give a density of minimum density + 0.1.

Rate of change = (| S−S ′ |) / S × 100 The IIE effect was determined by the following method. One sample was subjected to wedge exposure with white light, and the other sample was subjected to wedge exposure with green light. For each sample, the gamma value was obtained from the characteristic curve of the magenta dye obtained by color development, and the value obtained by dividing the gamma (γG) by green light by the gamma (γw) by white exposure was defined as IIE (inter-image effect).

Next, two sets of samples 1 to 12 were prepared, and 1/100
After performing wedge exposure in seconds, one set is 55 ℃, 55% RH
Was stored for 3 days under warm and humid conditions, and another set was stored in a freezer, used as a control, and developed in the same manner as above, and the latent image storability was evaluated.

The latent image storability was shown by the relative value of the sensitivity with respect to the control sensitivity of each sample being 100.

[0113]

[Table 1]

From the results of Table 1, in comparison with Comparative Samples 1 to 3, Samples 4 to 12 of the present invention have large IIE, no deterioration in sensitivity, improved latent image storability, and storage stability. It turns out to be excellent.

[0115]

According to the present invention, it is possible to provide a silver halide color photographic light-sensitive material having high sensitivity, a large inter-image effect, and improved latent image storability and raw storability.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location G03C 7/392 A

Claims (1)

[Claims] 1. A silver halide color photographic light-sensitive material having a silver halide emulsion layer consisting of a blue-sensitive layer, a green-sensitive layer and a red-sensitive layer on a support, wherein at least one of the blue-sensitive layers has the following general composition. A silver halide color photographic light-sensitive material comprising at least one coupler represented by formula [I] and at least one compound represented by the following general formula [II] or [III]. General formula [I] A- (TIME) n-INHIBIT [In formula, A represents a coupler residue. TIME represents a timing group, which is bonded to the coupling group A of the general formula [I], cleaved from the coupler by the reaction with the oxidant of the color developing agent, and then sequentially cleaved to finally give a proper INHIBIT. Controlled release. n is 0 or 1. INHIBIT is a group which becomes a development inhibitor by the above release and is a triazole ring group represented by the general formula [Ia] or the general formula [Ib]. [Chemical 1] [In the general formulas [Ia] and [Ib], R ₁₁ is an alkylthio group, and R ₁₂ is H, an alkyl group, an alkylthio group, an aryl group or a heterocyclic group. Substituent R
_At least one of ₁₁ and R ₁₂ is 2 to 3 from a triazole ring.
Group-CO that can be hydrolyzed in aqueous alkali at intervals of 4 atoms
It contains -OR ₁₃ , -O-CO-OR ₁₃ , or -CO-CO-R ₁₃ . R ₁₃ is an alkyl group, a cycloalkyl group, or an aryl group. ] [Chemical 2] [In the formula, Z ₁ represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom or a> N—R ₂₆ group. V ₂₁ , V ₂₂ , V ₂₃ , V
₂₄ represents a hydrogen atom, a halogen atom, an aryl group, an alkyl group, a substituted alkyl group, an alkoxy group, an alkoxycarbonyl group, a carboxy group, a hydroxy group or a cyano group. However, V ₂₁ and V ₂₂ , V ₂₂ and V ₂₃ , and V ₂₃ and V ₂₄ may be condensed with each other to form a benzene ring. R ₂₁ , R ₂₂ ,
R ₂₃ , R ₂₄ , and R ₂₅ are each a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group, an alkoxy group, an aryl group, an amino group, or a group capable of condensing an adjacent substituent to form a 5- or 6-membered ring. Represent R ₂₆ represents a substituted or unsubstituted alkyl group or aryl group. ] [Chemical 3] [In the formula, Z ₂ has the same meaning as Z ₁ , and V ₃₁ , V ₃₂ , V ₃₃ , V
₃₄ is synonymous with V ₂₁ , V ₂₂ , V ₂₃ , and V ₂₄ , respectively. R ₃₁ ,
R ₃₂ , R ₃₃ , R ₃₄ and R ₃₅ are respectively R ₂₁ , R ₂₂ , R ₂₃ and
Synonymous with R ₂₄ and R ₂₅ . R ₃₆ represents a substituted or unsubstituted alkyl group or aryl group. X represents a charge-balancing counterion, and k represents a value that neutralizes 0 or more charges. ]