JPH0437741A - Silver halide photographic sensitive material containing novel dye - Google Patents

Abstract

PURPOSE:To provide the silver halide photographic sensitive material by dyeing the hydrophilic colloidal layers by the novel dyes which do not exert harmful influence on the photographic characteristics of silver halide emulsion layers. CONSTITUTION:At least one kind of the dyes expressed by general formula [I] are incorporated into the silver halide photographic sensitive material. The dyes expressed by the general formula [I] are more easily decolored or dissolved away in the photographic processing stage and do not leave the harmful colora tion in the photographic sensitive material after the processing if the dyes have an acid group (sulfonic acid group, carboxyl group, phosphoic acid group, phosphinic acid group, phosphate group, phosphoric amide group, etc.) in the molecule. These dyes are preferably used to attain the optical density in a 0.05 to 3.0 range at the time of use of the dyes as a filter dye, irradiation preven tive dye or antihalation dye.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a silver halide photographic light-sensitive material containing a novel dye, and more specifically, a silver halide photographic light-sensitive material containing a novel dye, which is photochemically inert and easily processed in a photoprocessing process. The present invention relates to a silver halide photographic light-sensitive material having a hydrophilic colloid layer colored by a dye that is decolored and/or eluted.

(Prior Art) In silver halide photographic materials, photographic emulsion layers or other layers are often colored for the purpose of absorbing light in a specific wavelength range.

When it is necessary to control the spectral components of light incident on the photographic WL agent layer, a colored layer is provided on the photographic brightness material on the side farther from the support than the photographic emulsion layer.

Such a colored layer is called a filter layer. When there are multiple photographic emulsion layers, such as in a multilayer color light-sensitive material, a filter layer may be located between them.

Furthermore, light scattered during or after passing through the photographic emulsion layer is reflected at the interface between the emulsion layer and the support, or at the surface of the light-sensitive material on the opposite side of the emulsion layer, and enters the photographic emulsion layer again. In order to prevent image blurring, that is, halation, a colored layer is provided between the photographic emulsion layer and the support, or on the opposite side of the support from the photographic emulsion layer. Such a colored layer is called an antihalation layer. In the case of multilayer color photosensitive materials, an antihalation layer may be placed between each layer.

Image sharpness decreases due to light scattering in the photographic emulsion layer (this phenomenon is generally called irradiation)
In order to prevent this, the photographic emulsion layer is also colored.

These layers to be colored are often composed of hydrophilic colloids, and therefore, for coloring them, a water-soluble dye is usually incorporated into the layer. This dye must satisfy the following conditions.

(1) Must have appropriate spectral absorption according to the purpose of use.

(2) Photochemically inert. In other words, it should not adversely affect the performance of the silver halide photographic emulsion layer in a chemical sense, such as a decrease in sensitivity, latent image regression, or fog.

(3) No harmful coloration remains on the photographic material after processing by being bleached or dissolved away during the photographic processing process.

Many efforts have been made by those skilled in the art to find dyes that meet these conditions, and the dyes listed below are known. For example, British Patent No. 506°385, No. 1,
No. 177.429, No. 1,311,884, No. 1゜3
No. 38.799, No. 1,385,371, No. 1,46
7.214, 1,433,102, 1,553
, No. 516, JP-A-48-85130, JP-A No. 49-11
No. 4420, No. 55-161233, No. 591116
No. 40, U.S. Pat. No. 3,247.127, U.S. Patent No. 3.46
oxonol dyes having a pyrazolone nucleus or barbyl nucleation described in 9□985, 4,078,933, etc., British Patent Nos. 1,278,621, 1,512
, No. 863, No. 1,521,083, No. 1,579,
Examples include oxonol dyes having a human Oxypyridone nucleus described in No. 899 and the like.

(Problems to be Solved by the Invention) The above-mentioned dyes known so far have adverse effects during photographic milking (for example, spectral aggravation or a decrease in sensitivity that is thought to be caused by the desorption of aggravating dyes). 6 Furthermore, due to the rapid development process that has been carried out in recent years, some photographic images exhibit harmful coloring after processing. To solve this problem, it has been proposed to use dyes that are highly reactive with sulfite ions or hydroxide ions, but in this case, the stability in the photographic film is insufficient and the concentration decreases over time. This has the disadvantage that the desired photographic effect cannot be obtained. Furthermore, the layers to be colored are often composed of hydrophilic colloids, and therefore, in order to color them, the dye must be water-soluble.

The silver halide photographic material proposed by the present invention contains a novel dye in the photographic emulsion layer or other layers.

The first object of the present invention is to provide a silver halide photographic material in which a hydrophilic colloid layer is dyed with a novel dye that does not adversely affect the photographic properties of the silver halide emulsion layer.

A second object of the present invention is to provide a silver halide photographic material in which a hydrophilic colloid layer is dyed with a novel dye that exhibits excellent decolorization properties through processing.

A third object of the present invention is to provide a silver halide photographic material containing a novel dye in which the dyed hydrophilic colloid layer is stable over time.

(Means for Solving the Problems) These objects of the present invention can be achieved by incorporating at least one kind of dye represented by the following general formula [I] into a silver halide photographic light-sensitive material.

The following is a blank general formula [■] where R+, R2, R1 and R4 represent a hydrogen atom or a substituent, and Ll, R2 and R3 represent an optionally substituted methine group.

ml and m2 represent integers from 0 to 4.

When ml and m2 represent integers of 2 to 4, multiple R
3 and R4 may be the same or different.

n represents an integer of 0.1.2. ] (Specific structure of the invention) Next, general formula [I] will be explained in detail.

In general formula [I], R+, R2, R3 and R4
There are no particular restrictions on the substituents represented by, and typically,
Alkyl, aryl, anilino, acylamino, sulfonamide, alkylthio, arylthio, alkenyl,
Examples include polygroups such as cycloalkyl, but also halogen atoms, cycloalkenyl, alkynyl, heterocycles,
Sulfonyl, sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, sulfonyloxy, aryloxy, heterocyclicoxy, siloxy, acyloxy, carbamoyloxy, amino, alkylamino, imide, ureido, sulfamoylamino, alkoxycarbonylamino , aryloxycarbonylamino, alkoxycarbonyl, aryloxycarbonyl, heterocyclic thio, thioureido, carboxyl,
Also included are polygroups such as hydroxy, mercapto, nitro, and sulfonic acid, as well as spiro compound residues, bridged hydrocarbon compound residues, and the like.

The above alkyl group preferably has 1 to 32 carbon atoms, and may be linear or branched.

As the aryl group, a phenyl group is preferred.

Examples of the acylamino group include an alkylcarbonylamino group and an arylcarbonylamino group.

Examples of the sulfonamide group include an alkylsulfonylamino group and an arylsulfonylamino group.

Examples of the alkyl component and aryl component in the alkylthio group and arylthio group include the above-mentioned alkyl groups and aryl groups.

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

The cycloalkyl group has 3 to 12 carbon atoms, especially 5 to 12 carbon atoms.
7 is preferred.

Sulfonyl groups include alkylsulfonyl groups, arylsulfonyl groups, etc.; sulfinyl groups include alkylsulfinyl groups, arylsulfinyl groups, etc.; phosphonyl groups include alkylphosphonyl groups, alkoxyphosphonyl groups, aryloxyphosphonyl groups, and arylphosphonyl groups. Acyl groups include alkylcarbonyl groups, arylcarbonyl groups, etc.; carbamoyl groups include alkylcarbamoyl groups, arylcarbamoyl groups, etc.; sulfamoyl groups include alkylsulfamoyl groups,
Examples of near-acyloxy groups such as arylsulfamoyl groups include alkylcarbonyloxy groups and arylcarbonyloxy groups.

Carbamoyloxy groups include alkylcarbamoyloxy groups, arylcarbamoyloxy groups, etc.; ureido groups include alkylureido groups, arylureido groups, etc.; sulfamoylamino groups include alkylsulfamoylamino groups, arylsulfamoylamino groups, etc. The heterocyclic group is preferably a 5- to 7-membered one, and specific examples include a 2-furyl group, a 2-thienyl group, a 2-pyrimidinyl group, a 2-benzothiazolyl group, a 1-pyrrolyl group, and a 1-tetrazolyl group; The heterocyclic oxy group preferably has a 5- to 7-membered heterocycle, such as a 3,4,5.6-titrahydropyranyl-2-oxy group, a 1-phenyltetrazol-5-oxy group; The heterocyclic thio group is preferably a 5- to 7-membered heterocyclic thio group, such as 2-pyridylthio group, 2-benzothiazolylthio group, 2,4-diphenoxy-1,3,5-1 riazole-6 monothio group, etc. Groups, etc.: Siloxy groups include trimethylsiloxy, triethylsiloxy, dimethylbutylsiloxy, etc.; imide groups include succinimide, 3-heptadecylsuccinimide, phthalimide, glutarimide, etc.; spiro compound residues; The group is spiro[3,3]hebutane-
1-yl, etc.; As a bridged hydrocarbon compound residue, bicyclo[2°2.1
cohebutan-1-yl, tricyclo[33,1,137
Codecan-1-yl, 7,7-dimethyl-bicyclo[2
, 2,1 cohebutan-1-yl and the like.

The above group may further have a substituent such as a long-chain hydrocarbon group or a diffusion-resistant group such as a polymer residue. groups, carboxyl groups, phosphonic acid groups, phosphinic acid groups, phosphoric acid ester groups, phosphoric acid amide groups, etc.) are decolorized or dissolved and removed during the photographic processing process and are added to the photographic material after processing. Each of these acid groups, which are preferred in that they do not leave harmful coloration, includes its salts. As salt,
Examples include alkali metal salts such as sodium and potassium salts, and organic ammonium salts such as ammonium, triethyl, amine, and pyridine.

The methine group represented by L and ~L3 includes an alkyl group having 1 to 3 carbon atoms (for example, methyl, ethyl, etc.), a phenyl group,
It may be substituted with a benzyl group, phenethyl group, hydroxyl group, acyloxy group, halogen atom, etc. or,
The substituents of methine may form a ring (for example, 5,5-dimethyl-1-cyclohexen-1-yl-3-ylidene).

Next, typical examples of compounds of the present invention are shown below, but the invention is not limited thereto.

Margins below: 10° 11° 12° 03Na O3K 03Na OiK CH3CH3 17°5Osh 22° General formula [II] General formula [In-a] The compound represented by the general formula [I] can be synthesized by various methods. For example, a compound represented by the general formula [n] and a compound represented by the general formula [I[[-a], the general formula [I[[-b3] or the general formula [I[[-cl] are acidified in a suitable solvent. Alternatively, it can be synthesized by reaction under basic conditions. Suitable solvents include methanol, ethanol, isopropyl alcohol, acetic acid, N,N-dimethylformamide, pyridine, and the like.

General formula [■ General formula [II[-cl Below margin 03Na In the formula, R1, R3, L+, L2, L3, n and ml are R + , R3, L + in general formula [I],
Synonymous with L2, L3, n and ml.

E represents a hydrogen atom, a nitro group, a halogen atom (e.g. chlorine atom, bromine atom, etc.), and HaJ- represents an anion (e.g. CfJ-2Br-1I-, methylsulfonate,
R represents an alkyl group having 1 or 2 carbon atoms (eg, methyl, ethyl, etc.), and R' represents an alkyl group (eg, methyl, ethyl, etc.) or a phenyl group.

Further, the compound represented by the general formula [II] used for synthesizing the compound represented by the general formula [I] in the present invention can be synthesized by the method described in Japanese Patent Application No. 321488/1988.

The method for synthesizing the dye according to the present invention will be specifically described below.

Synthesis of dye 2 2-carboxymethyl-pyrazolo[1,5-a]quinazolin-5(4H)-one 4.9. , potassium acetate2.
8g, 1,3.3-trimethoxypropene'1.3g,
A mixture of 40 ml of ethanol is heated under reflux for 3 hours and then cooled to room temperature. The generated precipitate was collected by filtration, washed with methanol, and dried to obtain 2.1 g of Dye 2. Melting point 300
℃ or more.

Synthesis of dye 4 2-sulfomethyl-pyrazolo[1,5-a'l quinazolin-5(4H)-one sodium salt 6.1 g, sodium acetate i, e,, pentadiencyanyl hydrochloride 2.9 g
, 6 ml of acetic anhydride was added to a mixture of 30 ml of methanol and stirred at room temperature for 5 hours. Add to this 40ml of ethyl acid
was added, and the precipitate was collected by filtration, washed with isopropyl alcohol, and dried to obtain 2.3 g of Dye 8.

Melting point 300'C or higher.

Other dyes according to the present invention can also be synthesized by a method similar to the above synthesis method.

When using the dye represented by general formula [I] as a filter dye, anti-irradiation dye or antihalation dye, any effective amount can be used;
It is preferable to use it so that the optical density is in the range of 0.05 to 3.0.

The addition time may be any step before coating.

The dyes according to the invention can be dispersed in emulsion layers and other hydrophilic colloid layers (interlayers, protective layers, antihalation layers, filter layers, etc.) by various known methods.

(2) A method in which the dye of the present invention is directly dissolved or dispersed in an emulsion layer or a hydrophilic colloid layer, or a method in which the dye is dissolved or dispersed in an aqueous solution or solvent and then added to a dashing agent layer or a hydrophilic colloid layer.

For example, the dye is mixed with a suitable solvent such as methyl alcohol, ethyl alcohol, propyl alcohol, methylcellosolve, JP-A-48-9715, U.S. Pat.
, halogenated alcohol, acetone, as described in No. 830,
A method in which the compound is dissolved in water, pyridine, or a mixed solvent thereof, and added to the emulsion in the form of a solution.

■A method in which a hydrophilic polymer with a charge opposite to that of the dye ion is made to coexist in the layer as a mordant, and the dye is localized in a specific layer through the interaction between the mordant and the dye molecules.

The polymer mordant is a polymer having a nitrogen-containing heterocyclic moiety containing a secondary and tertiary amino group, or a polymer containing a quaternary cation group thereof, and preferably has a molecular weight of 5,000 or more, and preferably has a molecular weight of 10,000 or more. The above are particularly preferred.

Examples of the mordant include vinylpyridine polymers and vinylpyridinium cationic polymers disclosed in U.S. Pat. No. 2,548,564, 5Ill, etc.; Imidazolium thione polymer: US Patent 3625
．． Polymer mordants capable of crosslinking with Seratin etc. as disclosed in US Pat. Water-insoluble mordant disclosed in US Pat. No. 898.088; US Pat. No. 4.1689
Reactive mordants capable of forming a covalent bond with the dyes disclosed in U.S. Pat. products obtained by the reaction of polyvinyl alkyl ketones with aminoguanidine as described in British Patent No. 850,281; 2-methyl-1-vinyl as described in U.S. Pat. No. 3,445,231; Examples include polymers derived from imidazole.

■Method of dissolving compounds using surfactants.

Useful surfactants may be oligomers or polymers.

For details of this polymer, please refer to JP-A-Sho-1sa43.
It is described in Publication No. 7, pages 6 to 8.

Further, in the hydrophilic colloid dispersion obtained above, for example, hydrosyl, a lipophilic polymer described in Japanese Patent Publication No. 51-39835, may be added.

Gelatin is a typical hydrophilic colloid, but any other conventionally known hydrophilic colloids that can be used for photography can be used.

The dyes according to the present invention may be used in combination of two or more kinds, or in combination with known dyes.

The silver halide emulsion of the present invention includes any silver halide used in conventional silver halide emulsions, such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, and silver chloride. can be used.

The silver halide grains used in the silver halide emulsion may have a uniform silver halide composition distribution within the grain, or may have a different silver halide composition between the inside of the grain and the surface layer.

Further, the silver halide grains may be grains in which a latent image is mainly formed on the surface, or grains in which a latent image is mainly formed inside the grain.

Silver halide emulsions having any grain size distribution may be used. An emulsion with a wide grain size distribution (referred to as a polydisperse emulsion) may be used, or an emulsion with a narrow grain size distribution (referred to as a monodisperse emulsion) may be used alone or in combination. Further, a mixture of a polydisperse emulsion and a monodisperse emulsion may be used.

The silver halide emulsion may be a mixture of two or more separately formed silver halide emulsions.

Known photographic additives can be used in the silver halide photographic emulsion of the present invention.

Examples of known photographic additives include Research Disclosure's RD-17643 and RD- shown in the table below.
Examples include compounds described in 18716.

The following margin additives Chemical sensitizers Sensitizing dye development accelerators Antifoggants Stabilizers Color stain inhibitors Image stabilizers Reagent Static inhibitor Matt agent Binder RD -17643 Page Classification 23 I[ 23IV 29 XXI 24 Vl 24 VI 25 ■ 25 ■ 25-26 ■ 25-26 ■ 4 V 6 X 26-27 XI 26-27 XI 27 XlI 27 Right 650 Right 650 Right 650 Right 650 Right 650 Right 651 Right When the present invention is applied to a color photosensitive material, a coupler is used. Furthermore, by coupling with a competing coupler having a color correction effect and an oxidized form of a developing agent, a development accelerator, a bleach accelerator, a developer, a silver halide solvent,
Compounds that release photographically useful fragments such as toning agents, hardeners, fogging agents, antifoggants, chemical sensitizers, spectral sensitizers and desensitizers can be used.

As the yellow dye-forming coupler, known acylacetanilide couplers can be preferably used.

Among these, benzoylacetanilide and pivaloylacetanilide compounds are advantageous.

As the magenta dye-forming coupler, 5-pyrazolone couplers, pyrazoloazole couplers, pyrazolopenzimidazole couplers, open chain acylacetonitrile couplers, indacylon couplers, etc. can be used.

Phenol or naphthol couplers are generally used as cyan dye-forming dullers.

The photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, and an antiirradiation layer. These layers and/or the emulsion layers contain dyes according to the invention which are washed out of the light-sensitive material or bleached during the development process.

Supports that can be used in the photosensitive material of the present invention include, for example, the above-mentioned RD-17643, page 28, and R
Examples include those described in the left column of page 647 of D-18716. Suitable supports include polymer films;
Paper or the like may be treated to improve adhesiveness, antistatic properties, etc.

The light-sensitive material according to the present invention can be developed by the conventional method described on pages 28 to 29 of RD-17643 and pages 651 of RD-18716, left column to right column.

This photographic processing method may be black and white photographic processing to obtain a recorded image, or color photographic processing to obtain a color image. The processing temperature applied for photographic processing is usually 18℃
~50°C, but the treatment is possible even at temperatures lower than 18°C and temperatures of 50°C or higher.

Photographic materials to which the photographic emulsion of the present invention can be applied include:
Mention may be made of various color and black and white photosensitive materials.

For example, color negative film for photography (general use, movie use, etc.)
, color reversal films (for slides, movies, etc., which may or may not contain couplers)
, color photographic paper, color positive film (for movies, etc.), color reversal photographic paper, color photosensitive material for heat development, color photosensitive material using the silver dye bleaching method, photosensitive material for plate making (lith film, scanner film, etc.), X-ray photographic materials (direct/indirect medical use, industrial use, etc.), black and white negative film for photography, black and white photographic paper, microphotosensitive materials (for C0M,
microfilm, etc.), color diffusion transfer photosensitive materials (DT
R), silver salt diffusion transfer photosensitive materials, printout photosensitive materials, and the like.

[Example] The present invention will be further explained in detail with reference to Examples below.

Example 1 A paper support laminated with polyethylene (fi (containing titanium content 2.7 g/rrF)) was coated with the upper and lower layers sequentially from the support side, and a 10-year-old silver color photographic light material sample was prepared. No, t~NO2O was created.

l111, -・1.2g/rr? gelatin, 0
．． 32 g/rd (silver equivalent, the same applies hereafter) of blue color and salty odor (Silver chloride content: 993 moles) 6), 0.50g
0.80 g/r dissolved in /d of dioctyl phthalate
A layer containing a yellow coupler (YC) of rl'.

Layer 2...Q, 7g/rrf gelatin, Table-I
An intermediate layer consisting of an anti-irradiation dye (as shown in Figure 1).

Layer 3: Gelatin of 1.25 g/rr, 0.
22 g/- green chloride bromide mammography (silver chloride content 99.
5 mol %), 0.62 g/rrl' of MC" dissolved in 0.30 g/rrt of dioctyl phthalate.

Layer 4...1.2g/rr? middle layer consisting of gelatin.

Layer 5--1, 40g/rrFl of gelatin, 0.2
A layer containing 0 g/rrf of a red-sensitive silver chlorobromide emulsion (silver chloride content 99.7 mol%), 0.45 g/rrr of cyan coupler (CC) dissolved in 0.20 g/rrf of dioctyl phthalate.

Layer 6: Intermediate layer containing 1.0 g/d of gelatin Layer 7: Layer containing 0.50 g/rrt' of gelatin.

As a hardening agent, sodium 2,4-dichloro-6-hydroxy-5-)-lyazine was added to layers 2.4 and 7 in an amount of 0.017 g per 1 g of gelatin, respectively.

Margin below (YC) J NaChSCH2NH00H Each of the above photosensitive material samples k1 to 20 was exposed through an optical wedge and then rapidly processed in the following step.

Processing step (35'C) Color development 45 seconds bleach-fixing 45 seconds stabilization 1 minute 30 seconds drying Refining 0-80°C 2 minutes The composition of each processing solution is as follows.

Coloring ring @liquid (per 11) Pure water
800ml ethylene glycol
10 mIN, N-diethyl droxylamine
2ml potassium chloride 2g
Potassium sulfite 0.2gN-
Ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate
5g sodium tetrapolyphosphate
2g potassium carbonate
Add 30g of pure water to adjust pH to 10.08.

Bleach-fix pure water
8 (30 engineering I ethylenediaminetetraacetic acid iron (lI[
) Ammonium 65g Ethylenediaminetetraacetic acid - Sodium 58 Ammonium thiosulfate 85g Sodium bisulfite 10g Sodium metabisulfite 2g Sodium chloride
10g hydroxylamine sulfate
Add 2g of pure water to make 1J, and dilute with dilute sulfuric acid.
Adjust to H=5.7.

Stabilizing liquid 5-chloro-2-methyl-4-isothiazolin-3-one 1g 1-hydroxyethylidene-1,1-diphosphonic acid 2g Water was added to make the solution 11, and the pH was adjusted to 7 with sulfuric acid or potassium hydroxide.
Adjust to 0.

Sensitometry was used to determine the sensitivity of the red-sensitive emulsion layer for each sample after the above treatment.

In addition, for each of the above-mentioned processed samples, the unexposed area (white area)
By measuring the optical reflection density at 650 nn+, the degree of dye staining due to the residual irradiation-preventing dye was determined.

In addition, each sample was exposed to light through a wedge for MTF measurement, and processed in the same steps as above.

The MTF (Modulation Transfer) of the red-sensitive silver halide emulsion layer for each sample after the above treatment was determined.
rFunction) was determined using a microdensitometer, and the MTF values at a spatial frequency of 5 lines/ff1l+ were compared.

Note that the determination of image sharpness by MTF is well known among those skilled in the art, but the theory of
the photographic process
4th edition p612-p614. There is a description in .

The above results are shown in Table-1.

*1 Anti-irradiation dye added to layer 2 *2
The sensitivity of the red-sensitive emulsion layer is expressed as a relative value, with the sensitivity of sample ~01 being 100.

*3 Reflection density of white background at λ-650n+n *4
As is clear from the MTF value table-1 at the spatial frequency of 5 lines/B of the red-sensitive emulsion layer, samples Nos. 3 to 2o containing the dye according to the present invention maintain high sensitivity and high sharpness. It can be seen that color contamination is also at a sufficient level for practical use.

Example 2 Examine the stability of dye in the film and fog for samples No. 1 to 2o. Stability was evaluated by the residual rate of dye after leaving a raw sample at 50" C5 for 2 days at a relative humidity of 70%. Fog was evaluated by leaving the raw sample at 50" C5 and a relative humidity of 70%.
After being left for 3 days under 0% conditions, the same treatment as in Example 1 was performed and evaluated.

The evaluation results are shown in Table-2.

Table 1 Table 2 As is clear from Table 2, the dye according to the present invention has excellent stability in the film and has little fog.

[Effects of the Invention] Even when rapid photographic processing is performed, the dye according to the present invention rapidly decolorizes or dissolves, and does not adversely affect the photographic properties of the photographic emulsion.

Applicant Konica Co., Ltd. Company Agent Iwa
Yoshio Hama

Claims (1)

[Claims] A silver halide photographic light-sensitive material containing a dye represented by the following general formula [I] General formula [I] ▲There are numerical formulas, chemical formulas, tables, etc.▼ [In the formula, R_1, R_2, R_3 and R_4 represents a hydrogen atom or a substituent, L_1, L_2 and L_
3 represents an optionally substituted methine group. m_1 and m_2 represent integers from 0 to 4. When m_1 and m_2 represent integers from 2 to 4, the plurality of R_3 and R_4 may be the same or different. n represents an integer of 0, 1, or 2. ]