JPH117111A - Silver halide color photographic sensitive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain silver halide color photographic sensitive material whose fastness to the light of a dyestuff image is improved by incorporating thermotropic low molecular liquid crystal. SOLUTION: At least a kind of thermotropic low molecular liquid crystal is incorporated in this material. The liquid crystal is liquid where molecules are collectively oriented in terms of bearing though it has fluidity like ordinary liquid, and means a middle state between a solid phase and an isotropic liquid phase and substance having such a middle state. Many kinds of the liquid crystal substance are known thus far, that means, the thermotropic liquid crystal changed to the liquid crystal by temperature change and lyophilic liquid crystal changed to the liquid crystal in a specified concentration range such as soap solution, which is a representative. Furthermore, low molecular substance and high molecular substance are known as the substance showing the liquid crystallinity. The thermotropic liquid crystal substance is classified into smectic, nematic, cholesteric and discotic liquid crystal according to the difference of a liquid crystal state.

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 material, and more particularly, to a silver halide color photographic material having excellent color image fastness and color development.

[0002]

2. Description of the Related Art In the field of silver halide color photographic light-sensitive materials, it is desired that a dye image obtained from a coupler does not discolor even when exposed to light for a long time or stored under high temperature and high humidity. .

[0003] However, it is known that these dye images are not in a state where the fastness to ultraviolet light or visible light is satisfactory, and they easily discolor when exposed to these actinic rays. In order to eliminate such defects, conventionally, various couplers having little fading are selected and used, or an ultraviolet absorber is used to protect the dye image from ultraviolet rays, or light resistance is imparted to the coupler. A method of introducing a group to be used has been proposed.

However, in order to impart satisfactory light fastness to a dye image, for example, by using an ultraviolet absorber, a relatively large amount of the ultraviolet absorber is required. In this case, the dye image is colored due to the coloring of the ultraviolet absorber itself. Was sometimes significantly contaminated. Further, even if an ultraviolet absorber is used, it has no effect on preventing the discoloration of the dye image due to visible light, and there is a limit to the improvement of light resistance by the ultraviolet absorber.

Further, a method using a dye image fading inhibitor having a phenolic hydroxyl group or a group capable of hydrolyzing to form a phenolic hydroxyl group is known, for example, JP-B-48-31256, JP-B-48-31625, and JP-B-48-31625. 51-
No. 30462, JP-A-49-134326 and JP-A-49-134326.
No. 134327 to phenol and bisphenols; US Pat. No. 3,069,262 to Pyrogallol;
Gallic acid and its esters, US Patent 2,360,2
Nos. 90 and 4,015,990 disclose α-tocopherols and acyl derivatives thereof, and JP-B-52-27534.
No. JP-A-52-14751 and U.S. Pat.
No. 5,765 discloses a hydroquinone derivative, US Pat.
Nos. 432,300 and 3,574,627 disclose 6-hydroxychromans, U.S. Pat. No. 3,573,050 discloses 5-hydroxychroman derivatives and JP-B-49-20.
No. 977 proposes to use 6,6'-dihydroxy-2,2'-spirobichromans and the like. However, these compounds have some effects as anti-fading and discoloration inhibitors for dyes, but are not sufficient.

It is also known to improve the light stability of a dye image by using an azomethine quenching compound whose absorption peak is more deep-colored than that of the dye image, as disclosed in British Patent 1,451,000. However, since the azomethine quenching compound itself is colored, there is a great disadvantage in the influence on the hue of the dye image.

A method for stabilizing a dye with respect to light by a metal complex is disclosed in Japanese Patent Application Laid-Open No. 50-87649 and Research Disclosure.
osure) No. 15162 (1976), these complexes do not have a large fading-preventing effect itself and do not have high solubility in an organic solvent, so that an amount sufficient to exhibit the fading-preventing effect may be added. Can not. Further, since these complexes have high coloring in their own right, when added in a large amount, they have an adverse effect on the hue and purity of a dye image formed by color development.

[0008]

Accordingly, the first aspect of the present invention is as follows.
An object of the present invention is to provide a silver halide color photographic light-sensitive material in which the light fastness of a dye image is remarkably improved.

A second object of the present invention is to provide a silver halide color photographic light-sensitive material having excellent color developability.

[0010]

The above objects of the present invention have been attained by the following constitutions.

(1) A silver halide color photographic light-sensitive material comprising at least one type of thermotropic low-molecular liquid crystal.

(2) A silver halide color photographic light-sensitive material containing at least one selected from smectic thermotropic low-molecular liquid crystals and nematic thermotropic low-molecular liquid crystals.

(3) The following general formula (L-1) or (L-
A silver halide color photographic light-sensitive material comprising at least one thermotropic low-molecular liquid crystal represented by 2).

Formula (L-1) Y ₁ -A _1- (X ₁ ) m-A ₂ -Y ₂ Formula (L-2) Y ₁ -A _1- (X ₁ ) m-A _2- ( X ₂ ) n-A ₃ -Y _{2 wherein} A ₁ , A ₂ and A ₃ each represent an alicyclic group or an aromatic group, X ₁ and X ₂ represent a linking group, and m and n represent Represents 0 or 1, and Y ₁ and Y ₂ represent a substituent. (4) In a silver halide color photographic light-sensitive material having a photographic component 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, A halogenation method characterized in that at least one of the light-sensitive silver halide emulsion layers contains at least one thermotropic low-molecular liquid crystal and at least one magenta coupler represented by the following formula (M-1). Silver color photographic light-sensitive material.

[0015]

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[Wherein, R represents a hydrogen atom or a substituent,
Z represents a nonmetallic atom group necessary for forming a nitrogen-containing heterocyclic ring, and the ring formed by Z may have a substituent. X represents a hydrogen atom or a group capable of leaving by reaction with an oxidized form of a color developing agent. Hereinafter, the present invention will be described in detail.

A liquid crystal is a liquid in which molecules are collectively orientated like a crystal, although it has fluidity like a normal liquid, and is an intermediate state between a solid phase and an isotropic liquid phase. ,
And substances having such an intermediate state. Many types of liquid crystal substances have been known so far, and there are a thermotropic liquid crystal which changes to a liquid crystal due to a temperature change and a lyophilic liquid crystal which becomes a liquid crystal in a specific concentration range as represented by a soap solution. . Further, low-molecular substances and high-molecular substances are known as substances exhibiting liquid crystallinity. The term “small molecule” in the present invention means a molecule having a molecular weight of 2000 or less. In addition, thermotropic low-molecular liquid crystal material is
The liquid crystal can be classified into smectic, nematic, cholesteric and discotic liquid crystals depending on the state of the liquid crystal. The molecular structures of liquid crystals and their properties are described in many books, for example,
Shoichi Matsumoto, Ryo Tsunoda, "Basics and Application of Liquid Crystals", Industrial Research Society, Tokyo, 1991, Ichiro Nakata, Bunichi Hori, Akio Mukao, "Introduction to Liquid Crystals", Koshobo, Tokyo, 1992, Koji Okano, Reference can be made to Shunsuke Kobayashi, "Liquid Crystal Fundamentals", Baifukan, Tokyo, 1985. In the present invention, a remarkable effect was found when smectic and nematic liquid crystal materials were used.

The details of the mechanism of action of the liquid crystal material according to the present invention exhibiting excellent effects have not been clarified. However, these liquid crystal substances interact with the image-forming dye molecules in the silver halide color photographic light-sensitive material, accelerate the speed at which the photoexcited dye molecules return to the ground state, and prevent the decomposition of the dye molecules. Presumed.

The compound represented by the general formula (L-1) or (L-
Thermotropic low-molecular liquid crystal (hereinafter referred to as 2)
It is also referred to as a liquid crystal compound represented by formula (L-1) or (L-2) of the present invention or a liquid crystal compound of the present invention. ) Will be described.

In the general formulas (L-1) and (L-2), the alicyclic group or aromatic group represented by A ₁ , A ₂ and A ₃ includes, for example, the following structures (groups)

[0021]

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And the like. These groups may have a substituent, for example, a substituent such as an alkyl group, a halogen atom, a cyano group, an alkoxy group, an acyl group, or a nitro group on the ring.

The linking groups represented by X ₁ and X ₂ include:
For example, the following structure (group)

[0024]

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And the like. These groups described above may have a substituent.

M and n represent an integer of 0 or 1.

As the substituents represented by Y ₁ and Y ₂ ,
For example, the following group

[0028]

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(R represents a linear or branched alkyl group, alkenyl group, alkynyl group or the like having 1 to 25 carbon atoms.)
And the like.

The compound represented by the general formula (L-1) or (L-
Specific examples of the thermotropic low-molecular liquid crystal compound represented by 2) are shown below.

[0031]

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[0032]

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[0033]

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[0034]

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[0035]

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[0036]

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[0037]

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[0038]

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[0039]

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[0040]

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These liquid crystal compounds of the present invention can be synthesized in the same manner as described in Nakada, Hori and Mukoo, "Introduction to Liquid Crystals", pp. 51-79.

In the present invention, the compound represented by the general formula (L-
Preferred yellow couplers that can be used in combination with the liquid crystal compound represented by (1) or (L-2) include benzoylacetanilide-type and pivaloylacetoanilide-type couplers, and magenta couplers include 5-pyrazolone and pyrazolone. There are zolotriazole-based and indazolone-based couplers, and examples of cyan dye-forming couplers include phenol-based, naphthol-based, pyrazoloquinazolone-based, pyrazolopyrimidine-based, pyrazolotriazole-based, and imidazole-based couplers.

Typical examples of the magenta coupler used in the present invention include, for example, M-1 to M-28 described in JP-A-4-313951, pages 52 to 58.

Other magenta couplers which can be used in combination are, for example, US Pat. No. 3,684,514, British Patent 1,183,515, JP-B-40-6031,
Nos. 40-6035, 44-15754, 45-
Nos. 40757 and 46-19032 and JP-A-50-1
No. 3041, No. 53-129035, No. 51-376
No. 46, No. 55-62454, U.S. Pat.
No. 067, British Patents 1,252,418 and 1,33
4,515, JP-A-59-171956, and 59-
No. 162548, No. 60-43659, No. 60-33
No. 552, Research Disclosure No. 246
26 (1984), Japanese Patent Application No. 59-243007, 5
9-243008, 59-24309, 59
No. 243012, No. 60-70197, No. 60-7
No. 0198 and the like, and can be synthesized according to the methods described therein.

Next, the magenta coupler represented by formula (M-1) of the present invention will be described.

In the general formula (M-1), the substituent represented by R is not particularly limited, but is typically alkyl, aryl, anilino, acylamino, sulfonamide, alkylthio, arylthio, alkenyl, Examples of each group include cycloalkyl, and in addition, a halogen atom and cycloalkenyl, alkynyl, heterocycle, sulfonyl, sulfinyl, phosphonyl, acyl, sulfamoyl, cyano, alkoxy, aryloxy, heterocyclic oxy, siloxy, acyloxy, Carbamoyloxy, amino, alkylamino, imide, ureido, sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, alkoxycarbonyl,
Examples include aryloxycarbonyl, heterocyclic thio groups, spiro compound residues, bridged hydrocarbon compound residues, and the like.

The alkyl group represented by R preferably has 1 to 32 carbon atoms and may be linear or branched.

The aryl group represented by R is preferably a phenyl group.

The acylamino group represented by R includes an alkylcarbonylamino group, an arylcarbonylamino group and the like.

As the sulfonamide group represented by R,
Examples thereof include an alkylsulfonylamino group and an arylsulfonylamino group.

The alkyl component and the aryl component in the alkylthio group and the arylthio group represented by R include the alkyl group and the aryl group represented by R.

The alkenyl group represented by R has 2 to 32 carbon atoms, and the cycloalkyl group has 3 carbon atoms.
~ 12, particularly preferably 5 ~ 7, and the alkenyl group may be linear or branched.

The cycloalkenyl group represented by R preferably has 3 to 12 carbon atoms, particularly preferably 5 to 7 carbon atoms.

Examples of the sulfonyl group represented by R include an alkylsulfonyl group and an arylsulfonyl group; examples of the sulfinyl group include an alkylsulfinyl group and an arylsulfinyl group; and examples of the phosphonyl group include an alkylphosphonyl group, an alkoxyphosphonyl group and an aryloxy group. Phosphonyl group, arylphosphonyl group, etc .; acyl group as alkylcarbonyl group, arylcarbonyl group, etc .; carbamoyl group as alkylcarbamoyl group, arylcarbamoyl group, etc .; sulfamoyl group as alkylsulfamoyl group, arylsulfamoyl An acyloxy group such as an alkylcarbonyloxy group or an arylcarbonyloxy group; a ureido group such as an alkylureido group or an arylureido group; Rusuru sulfamoylamino group, an aryl sulfamoylamino group; 5-7 as the heterocyclic group
Member is preferable, and specifically, 2-furyl group, 2-thienyl group, 2-pyrimidinyl group, 2-benzothiazolyl group and the like; as the heterocyclic oxy group, those having a 5- to 7-membered heterocyclic ring are preferable. For example, 3,4,5,6-tetrahydropyranyl-2-oxy group, 1-phenyltetrazol-5-oxy group and the like; As the heterocyclic thio group, a 5- to 7-membered heterocyclic thio group is preferable. 2-pyridylthio group,
2-benzothiazolylthio group, 2,4-diphenoxy-
1,3,5-triazole-6-thio group and the like; siloxy group as trimethylsiloxy group, triethylsiloxy group, dimethylbutylsiloxy group and the like; imide group as succinimide group and 3-heptadecylsuccinimide group;
Phthalimide group, glutarimide group, etc .; spiro compound residues such as spiro [3.3] heptane-1-yl; bridged hydrocarbon compound residues, bicyclo [2.2.1]
Heptan-1-yl, tricyclo [3.3.1.
1 ^3.7] decan-1-yl, 7,7-dimethyl - bicyclo [2.2.1] heptane-1-yl, and the like.

Examples of atoms and groups which can be eliminated by the reaction with the oxidized form of the color developing agent represented by X include, for example, a halogen atom (a chlorine atom, a bromine atom, a fluorine atom, etc.) and alkoxy, aryloxy, heterocyclic oxy. Acyloxy, sulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyl, alkyloxalyloxy, alkoxyoxalyloxy, alkylthio, arylthio, heterocyclic thio, alkyloxythiocarbonylthio,
Acylamino, sulfonamide, nitrogen-containing heterocycle linked by an N atom, alkyloxycarbonylamino, aryloxycarbonylamino, carboxyl,

[0056]

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(R ′ has the same meaning as R, Z ′ has the same meaning as Z, and R ₂ ′ and R ₃ ′ represent a hydrogen atom, an aryl group, an alkyl group or a heterocyclic group.) Each group may be mentioned, but is preferably a halogen atom, especially a chlorine atom.

Examples of the nitrogen-containing heterocyclic ring formed by Z or Z 'include a pyrazole ring, an imidazole ring, a triazole ring, and a tetrazole ring. Those mentioned are mentioned.

The specific examples of the magenta coupler represented by formula (M-1) of the present invention are shown below, but the invention is not limited thereto.

[0060]

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[0061]

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[0062]

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[0063]

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[0064]

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[0065]

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[0066]

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[0067]

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[0068]

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[0069]

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[0070]

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[0071]

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[0072]

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In order to incorporate the liquid crystalline compound and the image forming coupler of the present invention in a silver halide emulsion layer, a conventionally known method, for example, a method using a known high boiling solvent such as dibutyl phthalate or tricresyl phosphate and acetic acid is used. Butyl,
An aqueous gelatin solution containing a surfactant after dissolving the image forming coupler and the liquid crystal compound of the present invention alone or in combination in a mixed solution of a low boiling solvent such as ethyl acetate or a solvent containing only a low boiling solvent, respectively. And then emulsified and dispersed using a high-speed rotary mixer, a colloid mill or an ultrasonic disperser, and then directly adding the resulting emulsion. Alternatively, the emulsified dispersion may be set, then cut into pieces, washed with water, and then added to the emulsion.

In the present invention, the liquid crystalline compound of the present invention and the coupler may be separately dispersed by the above-mentioned dispersion method and added to the silver halide emulsion, but both compounds are dissolved simultaneously and dispersed. The method of adding to the emulsion is preferred.

The addition amount of the liquid crystal compound of the present invention is preferably 0.01 g to 20 g, more preferably 0.5 g to 8.0 g, based on 1 g of the coupler. They may be used together.

As the silver halide emulsion used in the light-sensitive material of the present invention, any conventional 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.

An antifoggant, a stabilizer and the like can be added to the silver halide emulsion. It is advantageous to use gelatin as a binder for the emulsion.

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

Further, a development accelerator, a bleaching accelerator, a developer, a silver halide solvent, a toning agent, and a hardening agent are coupled with a colored coupler having a color correcting effect, a competitive coupler, and an oxidized form of a developing agent. Compounds that release photographically useful fragments such as filming agents, fogging agents, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers can be used.

Auxiliary layers such as a filter layer, an antihalation layer and an anti-irradiation layer can be provided on the light-sensitive material. In these layers and / or emulsion layers,
A dye which flows out of the light-sensitive material or is bleached during the development processing may be contained. Photosensitive materials include formalin scavengers, optical brighteners, matting agents, lubricants, image stabilizers, surfactants, color fog inhibitors, development accelerators,
A development retarder and a bleaching accelerator 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 generally known color photographic processing can be performed after exposure.

[0083]

Next, the present invention will be described based on examples, but embodiments of the present invention are not limited to these examples.

Example 1 On a support in which polyethylene was laminated on one side of a paper support and polyethylene containing titanium oxide was laminated on the other side, each layer having the structure shown in Tables 1 and 2 was coated with titanium oxide. The coating was applied on the side of the polyethylene layer to be prepared, thereby preparing a multilayer silver halide color photographic material sample 101. The coating solution was prepared as follows.

First layer coating liquid Yellow coupler (Y-1), 26.7 g, dye image stabilizer (ST-1) 190.0 g, dye image stabilizer (ST-2) 6.67 g, stain prevention Agent (HQ-1)
0.67 g and 6.67 g of high boiling point organic solvent (DNP)
60 ml of ethyl acetate was added to the solution to dissolve the solution.
Using an ultrasonic homogenizer, the mixture was emulsified and dispersed in 220 ml of a 10% aqueous gelatin solution containing 7 ml of a surfactant (SU-2) to prepare a yellow coupler dispersion.

This dispersion was mixed with the following blue-sensitive silver halide emulsion (containing 8.67 g of silver), and an anti-irradiation dye (AIY-1) was further added to prepare a first layer coating solution.

The coating solutions for the second layer to the seventh layer were prepared in the same manner as the coating solution for the first layer. Further, the second layer and the fourth layer are used as hardeners.
(HH-1) was added to the layer and (HH-2) was added to the seventh layer. Surfactants (SU-1) and (S
U-3) was added to adjust the surface tension. F-1 was added as a preservative.

[0088]

[Table 1]

[0089]

[Table 2]

The structural formulas of the compounds used in each of the above-mentioned layers are shown below.

[0091]

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[0092]

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[0093]

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[0094]

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Blue-Sensitive Silver Halide Emulsion (Em-B) Monodisperse cubic emulsion having an average particle size of 0.85 μm, a coefficient of variation of 0.07, and a silver chloride content of 99.5 mol% 0.8 mg / mol of sodium thiosulfate AgX chloroauric acid 0.5 mg / mol AgX stabilizer STAB-1 6 × 10 ^-4 mol / mol AgX sensitizing dye BS-1 4 × 10 ^-4 mol / mol AgX sensitizing dye BS-2 1 × 10 ^-4 Mol / mol AgX Green-sensitive silver halide emulsion (Em-G) Monodisperse cubic emulsion having an average particle size of 0.43 μm, a coefficient of variation of 0.08, and a silver chloride content of 99.5 mol% 1.5 mg / Molar AgX chloroauric acid 1.0 mg / mol AgX stabilizer STAB-1 6 × 10 ⁻⁴ mol / mol AgX sensitizing dye GS-1 4 × 10 ⁻⁴ mol / mol AgX red-sensitive silver halide emulsion (Em-R ) Average particle size 0 50 [mu] m, coefficient of variation = 0.08, monodispersed cubic emulsion of sodium thiosulfate silver chloride content of 99.5 mol% 1.8 mg / mol AgX chloroauric acid 2.0 mg / mol AgX Stabilizer STAB-1 6 × 10 ^{- 4} mol / mol AgX sensitizing dye RS-1 1 × 10 ⁻⁴ mol / mol AgX The structural formulas of the compounds used in each monodisperse cubic emulsion are shown below.

[0096]

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Next, samples 102 to 120 were prepared by replacing the high-boiling organic solvent DNP in the third layer of the sample 101 with a comparative HBS shown in Table 3 below and the liquid crystal compound of the present invention.

The thus-prepared sample was subjected to wedge exposure with green light according to a conventional method, and then processed according to the following processing steps.

Processing Step Temperature Time Color Development 35.0 ± 0.3 ° C. 45 seconds Bleaching and Fixing 35.0 ± 0.5 ° C. 45 seconds Stabilization 30-34 ° C. 90 seconds Drying 60-80 ° C. 60 seconds The composition of each processing solution is shown below.

The replenishment rate of each processing solution is 80 ml per m ^{2 of} silver halide color photographic light-sensitive material.

Color developer tank liquid Replenisher Pure water 800 ml 800 ml Triethanolamine 10 g 18 g N, N-diethylhydroxylamine 5 g 9 g Potassium chloride 2.4 g 1-hydroxyethylidene-1,1-diphosphonic acid 1.0 g 1.8 g N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate 5.4 g 8.2 g Optical brightener (4,4′-diaminostilbenesulfonic acid derivative) 1.0 g 8 g Potassium carbonate 27 g 27 g Water was added to make the total volume 1000 ml. The pH of the tank solution was 10.10, and the pH of the replenisher was 10.10.
Adjust to 60.

Bleaching / fixing solution (tank solution and replenisher are the same) Ethylenediaminetetraacetate ammonium ferric dihydrate 60 g Ethylenediaminetetraacetic acid 3 g Ammonium thiosulfate (70% aqueous solution) 100 ml Ammonium sulfite (40% aqueous solution) 27.5 ml In addition, the total volume is made up to 1000 ml and the pH is adjusted to 5.7 with potassium carbonate or glacial acetic acid.

Stabilizing solution (the tank solution and the replenishing solution are the same) 5-chloro-2-methyl-4-isothiazolin-3-one 1.0 g ethylene glycol 1.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2 1.0 g Ethylenediaminetetraacetic acid 1.0 g Ammonium hydroxide (20% aqueous solution) 3.0 g Fluorescent whitening agent (4,4'-diaminostilbenesulfonic acid derivative) 1.5 g Adjust the pH to 7.0 with potassium oxide.

The following evaluation was performed using the sample after the continuous treatment.

<Light resistance> The obtained sample was irradiated with a xenon fade meter for 10 days, and the residual ratio (%) of the dye image at an initial density of 1.0 was determined.

Dmax: represents the maximum color density.

Table 3 shows the results.

[0108]

[Table 3]

[0109]

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As is clear from Table 3, Sample 1 using the liquid crystalline compound of the present invention as a high boiling organic solvent (HBS) was used.
Nos. 04 to 106 have significantly improved light fastness and improved color development as compared with Comparative Sample 101. Furthermore, HB
Comparative samples 102 and 10 using S-1 and HBS-2
In No. 3, although a slight effect of improving light resistance and an effect of improving coloring were observed as compared with Comparative Sample 101, the effects were hardly sufficient.

In Comparative Samples 107 to 109, three times the amount of the high boiling point organic solvent was used, but almost no improvement in light resistance was observed. On the other hand, in Samples 110 to 120 of the present invention, when the liquid crystalline compound of the present invention is used in three times the amount, the liquid crystalline compound of the present invention acts more effectively in such a system, and the light resistance is greatly improved. all right.

Example 2 Samples 201 to 204 were prepared by changing the magenta coupler and the high boiling point organic solvent in the third layer of Sample 101 of Example 1 to the combinations shown in Table 4 below. The same evaluation as in Example 1 was performed using the obtained sample.

Table 4 shows the results.

[0114]

[Table 4]

As is clear from Table 4, in the pyrazoloazole-based magenta coupler (M-5) substituted with a tertiary alkyl group at the 3-position, the liquid crystal compound of the present invention is used as a high boiling organic solvent (HBS). As a result, the light fastness and the coloring were greatly improved, and the improvement in light fastness was particularly large. In addition, it was found that light resistance was further improved in the sample 204 in which the amount of the liquid crystal compound of the present invention was increased.

[0116]

According to the present invention, a silver halide color photographic light-sensitive material having remarkably improved light fastness of a dye image and excellent color development properties can be provided.

Claims (4)

[Claims] 1. A silver halide color photographic material comprising at least one type of thermotropic low-molecular liquid crystal. 2. A silver halide color photographic material comprising at least one selected from the group consisting of a smectic thermotropic low-molecular liquid crystal and a nematic thermotropic low-molecular liquid crystal. 3. The following general formula (L-1) or (L-2)
A silver halide color photographic light-sensitive material comprising at least one thermotropic low-molecular liquid crystal represented by the formula: Formula _{(L-1) Y 1 -A} 1 - (X 1) m-A 2 -Y 2 General formula _{(L-2) Y 1 -A} 1 - (X 1) m-A 2 - (X 2) during n-a ₃ -Y ₂ [wherein, a _1, a ₂ and a ₃ each represents an alicyclic group or an aromatic group, X ₁ and X ₂ represents a linking group, m and n are 0 or 1 And Y ₁ and Y ₂ represent a substituent. ] 4. A silver halide color photographic light-sensitive material comprising a support having thereon a photographic component layer comprising a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer. A halogen containing at least one kind of thermotropic low-molecular liquid crystal and at least one kind of a magenta coupler represented by the following formula (M-1) in at least one layer of the green-sensitive silver halide emulsion layer; Silver halide color photographic material. Embedded image [Wherein, R represents a hydrogen atom or a substituent, Z represents a group of non-metallic atoms necessary to form a nitrogen-containing heterocyclic ring, and the ring formed by Z may have a substituent. . X represents a hydrogen atom or a group capable of leaving by reaction with an oxidized form of a color developing agent. ]