JPH03289646A - Silver halide photographic sensitive material having high sharpness and improved after-color - Google Patents

Abstract

PURPOSE:To prevent the degradation in sensitivity and the generation of after- colors by incorporating specific solid fine particles into one layer of hydrophilic colloidal layers and one kind of specific compds. into one layer of silver halide emulsion layers, respectively. CONSTITUTION:The solid fine particles of the compd. expressed by formula I are incorporated into one layer of the hydrophilic colloidal layers and one kind of the compd. expressed by formula II and/or formula III are incorporated into one layer of the silver halide emulsion layers. In the formula I, R<11>, R<12> denote an alkyl group, R<13>, R<14> denote a group which can be substd.; L<1> to L<3> denote a methyne group; n denotes 0 or 2 integer; l, m denote 0 to 4 integer. In the formula II, IV, R<21>, R<22> are respectively the same or different and denote a hydrogen atom, 1 to 5C alkyl group, etc.; R<23> denotes a hydroxy group, SO3 group, etc.; R<33>, R<34> denote 1 to 5C alkyl group or substd. alkyl group; X denotes a halogen atom or p-toluene sulfonate group; n denotes 2 to 5 integer. The high sharpness is obtd. in this way and the degradation in sensitivity and the after-colors are eliminated. In addition, the deterioration in silver color tones after development is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a silver halide photographic light-sensitive material, and particularly to a silver halide photographic light-sensitive material that is highly sharp and has improved residual color.

[Background of the invention]

In the field of silver halide photographic light-sensitive materials, there is a demand for improving the sharpness of images, and one known technique for improving the sharpness of such light-sensitive materials is the addition of dyes. For example, in some fields of photosensitive materials, a so-called crossover cut layer is provided to improve sharpness, and a dye is used as a substance for cutting light. However, the use of dye-adding techniques is usually accompanied by a decrease in sensitivity. It has been considered to prevent a decrease in sensitivity by allowing the dye to exist only in layers other than the emulsion layer, but since conventional dyes generally have diffusivity, they will diffuse into the emulsion layer, making a decrease in sensitivity unavoidable. In addition, when a mordant is used, there is little decrease in sensitivity, but
There is a problem in that dye remains after the development process.

As mentioned above, the addition of dyes is used as a means to improve sharpness, but the addition of dyes. The addition causes a decrease in sensitivity and color retention, which may lead to color dispersion 6 staining, causing discomfort when viewing images, or causing medical X-rays.
In the case of linear photosensitive materials, it may lead to misdiagnosis.

On the other hand, as another means of improving sharpness, it has been proposed to use tabular silver halide grains with a high aspect ratio, but light-sensitive materials based on this technology have been applied to black-and-white light-sensitive materials for producing silver images. In this case, there is a problem that the silver tone tends to yellow after development (U.S. Pat. No. 4,434,22
No. 6, Specifications of No. 4,439,520, Japanese Unexamined Patent Publication No. 1983-
(See Publication No. 170739, etc.).

[Purpose of the invention]

An object of the present invention is to solve the above-mentioned problems and provide a silver halide photographic light-sensitive material that is highly sharp, has no problems of decreased sensitivity or residual color, and does not cause deterioration of silver tone after development. do.

[Means for solving problems]

The above object of the present invention is to provide a silver halide photographic material having a hydrophilic colloid layer including at least one photosensitive silver halide emulsion layer on a support, in which at least one of the hydrophilic colloid layers is It contains solid fine particles of a compound represented by the general formula [■] (described in detail later), and at least one of the silver halide emulsion layers has the general formula [■].
At least one compound represented by the general formula [II] and/or at least one compound represented by the general formula [II] (
- This was achieved by a silver halide photographic material containing the general formula (I[) (I[[) will be described in detail later).

The present invention will be explained in more detail below.

First, general formula (1) will be explained.

General formula [■] Shiri U11 In general 2 [1], R1 and R'' represent an alkyl group, and R
Iff and R14 represent substitutable groups.

L', L2. L3 represents a methine group, n is 0°1.2
represents an integer.

l and m represent integers of 0 to 4.

In general formula (I), R1 and R'' represent an alkyl group, and examples of this alkyl group include methyl group, ethyl group, n-propyl group, 1so-propyl group, t-butyl group, n-pentyl group. , n-hexyl group, n-octyl group, 2-ethylhexyl group, n-dodecyl group, n-pentadecyl group, eicosyl group, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, etc. Groups include those having substituents, such as halogen atoms (e.g., chlorine, bromine, iodine, fluorine, etc.), aryl groups (
For example, phenyl group, naphthyl group, etc.), heterocyclic group (for example, pyrrolidyl group, pyridyl group, etc.), sulfo group, sulfinic acid group, carboxyl group, nitro group, hydroxyl group, mercapto group, amino group (for example, amino group, diethylamino group, etc.) ), alkyloxy groups (e.g. methyloxy, ethyloxy, n-butyloxy, n-octyloxy, isopropyloxy, etc.), aryloxy groups (phenyloxy, naphthyloxy, etc.), carbamoyl groups (e.g. amino Carbamoyl group, methylcarbamoyl group, n-pentylcarbamoyl group, phenylcarbamoyl group, etc.), amide group (e.g. methylamide group, benzua straw group, n-octylamide group, etc.), sulfamoyl group (
For example, sulfamoyl group, methylsulfamoyl group, phenylsulfamoyl group, n-butylsulfamoyl group, etc.), sulfonamide group (for example, methanesulfonamide group, n-hebutanesulfonamide group, benzenesulfonamide group, etc.) , sulfinyl groups (for example, alkylsulfinyl groups such as methylsulfinyl group, ethylsulfinyl group, phenylsulfinyl group, octylsulfinyl group, arylsulfinyl groups such as phenylsulfinyl group, etc.), alkyloxycarbonyl groups (for example, methyloxycarbonyl group, ethyloxy carbonyl group, 2-hydroxyethyloxycarbonyl group, n-octyloxycarbonyl group, etc.), aryloxycarbonyl group (e.g., phenyloxocarbonyl group, naphthyloxycarbonyl group, etc.), alkylthio group (e.g., methylthio group,
ethylthio group, n-hexylthio group, etc.), arylthio group (e.g. phenylthio group, naphthylthio group, etc.), alkylcarbonyl group (e.g. acetyl group, ethylcarbonyl group, n-butylcarbonyl group, n-octylcarbonyl group, etc.), aryl Carbonyl groups (e.g. benzoyl group, p-methanesulfonamidobenzoyl group, p-carpoxyhenzoyl group, naphthoyl group, etc.), cyano group, ureido group (e.g. methylureido group, phenylureido group, etc.), thioureido group (e.g. methylthio ureido group,
phenylthioureido group, etc.).

R13 and R14 represent substitutable groups, for example RI
Various alkyl groups exemplified as the alkyl group represented by 1 or multiple groups exemplified as substituents of the alkyl group represented by RI + can be mentioned.

L', L'', and L' represent methine groups, and the methine groups may also have a substituent, and examples of the substituent include substituted or unsubstituted alkyl groups (e.g., methyl, ethyl, 3-hydroxypropyl , benzyl, etc.), halogen atoms (e.g., fluorine, chlorine, bromine, etc.), aryl groups (e.g., phenyl group), alkoxy groups (e.g., methoxy, ethoxy, etc.), etc. I can do it.

Specific compounds represented by general formula (r) are shown below. However, it goes without saying that the invention is not limited to the following examples. In addition, examples are given for compounds-1 to 38 using the general formula (
1) Ll, LZ, L:l and RI'', RI
List the formulas that specify 4, and R1RI! in each formula! This is done by specifying and n, and for compounds-39 to 41, this is done by showing the structural formula.

Specific Compound Examples Compounds represented by the general formula [III] are disclosed in, for example, JP-A No. 4
No. 8-62826, No. 49-51525, No. 51-7
No. 7327, No. 58-143342, No. 59-111
It can be easily synthesized by reacting a pyrazolone derivative with a methine chain source, similar to the synthesis method shown in No. 641 and No. 64-40827. A specific synthesis example of the compound represented by the general formula (I) will be shown below, but other dyes can also be synthesized in the same manner.

Synthesis Example 1 (Synthesis of Compound 5) (1) (2) 24.6 g of the above (1), 11.6 g of (2) and D M
After F 100- was combined to form a suspension solution, 25.3 g of triethylamine was added dropwise at room temperature. After stirring for one day at room temperature, 200 d of concentrated hydrochloric acid was added to perform acid precipitation. 25.5 g of the crude crystals obtained by filtration were dispersed in 200 d of water, 5 g of sodium hydroxide 9 H3 was added to completely dissolve, and then concentrated hydrochloric acid was added until the pH reached 2 to perform acid precipitation.

After repeating this operation three times, the obtained solid was heated and dispersed in dimethyl sulfoxide 300 II 11, and concentrated hydrochloric acid 10
The desired product was obtained by adding 0d to perform acid precipitation, filtration, and drying. The yield was 16.3 g, and the yield was 69%.

The target object is determined by NMR, IR, and MASS spectra.
I did m. Other n=o monomethine dyes of the present invention are:
It can be synthesized using diphenylformamidine instead of (2) above, and pentamethine dye with n=2 can be synthesized in the same way using pentadiencyanyl instead of (2).

The compound represented by general formula (I) may be added to a silver halide photographic light-sensitive material depending on the purpose, preferably having an optical density of 0.0.
It is used so that it is in the range of 5 to 3.0.

The compound represented by the general formula (1) is added to the photosensitive material in the form of solid fine particles. The technique for obtaining the solid fine particle dispersion is not particularly limited, and for example, a method of processing a solid pigment with a ball mill, sand mill, colloid mill, etc. can be used.

Techniques that can be used include, for example, U.S. Pat.
, No. 446 and International Patent Application Publication No. 88-4794 can be cited as specific examples.

The compound represented by the general formula (1) is contained in any photographic constituent layer, and here, the photographic constituent layer means, for example, a silver halide emulsion layer, an intermediate layer, a protective layer, a filter layer, an antihalation layer. , indicates a photosensitive layer such as an irradiation prevention layer or a non-photosensitive layer.

The compound represented by general formula (1) is preferably contained in the non-photosensitive layer.

Next, the general formula (I[] (II[]) will be explained in detail.

or a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group, or a phenyl group, which may be different from R
23 represents a hydroxy group, an SO3 group, or a substituted alkyl group), X represents a halogen atom or a pt-luenesulfonate group, and the general formula (Ill) is represented by General formula [II] General formula [II] Inside, R1, and Ro are the same R'',
R'' represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a substituted alkyl group, which may be the same or different,
R33,R" represents an alkyl group having 1 to 5 carbon atoms or a substituted alkyl group, and n represents an integer of 2 to 5.

Next, in general formulas [II] and (III), R21
The alkyl group having 1 to 5 carbon atoms represented by R", RZ', and R"-R"4 may be linear, branched, or cyclic,
Examples include methyl group, ethyl group, propyl group, i-propyl group, butyl group, t-butyl group, j-butyl group, and pentyl group.

Examples of the substituent of the substituted alkyl group having 1 to 5 carbon atoms represented by the above-mentioned polygroup include a hydroxy group, a carboxy group, a phenyl group, an acyl group, an alkoxy group, or a halogen atom.

Specific examples of compounds represented by the general formula (n) or (I[I) are shown below, but the invention is not limited to these as a matter of course.

l-1 2-dimethylaminoethyl-isothiourea・2HCf −2 2-diethylaminoethyl-isothiourea・2HC1 1-3 3-dimethylaminopropyl-isothiourea・2Hf
J -4 2-hydroxyethyl-isothiourea・[III f-5 2-sulfoethylisothiourea・)ICZ 1-6 2-dimethylaminoethyl-N-methyl-isothiourea・2HC1 -7 2-dimethylaminoethyl- N,N'-dimethyl-inthiourea・2HC1 1-8 3-dimethylaminopropyl-N,N'diphenyl-isothiourea・2HC1l-9 2-hydroxyethyl-N,N'-dibutyl-isothiourea・H[III ■-10 2-sulfoethyl-N-allyl-isothiourea・HC
ffi 1[1-1 S-(2-dimethylaminoethyl) Methyldithiocarbamate H[III-2 S-(3-dimethylaminopropyl)-N-ethyldithiocarbamate HCl 1[1-3 S-(2 -dipropylaminoethyl)-N-phenyldithiocarbamate p-)luenesulfonic acid-4 S-(2-diethylaminoethyl)-N.

N'-dimethyldithiocarbamate H[III[[
-5S-(2-dimethylaminoethyl)-N.

N'-Diethyldithiocarbamate/HIJ The above compound is commercially available from, for example, Tokyo Kasei ■.

The compound represented by the general formula [n] [III[) is
It is contained in the photosensitive silver halide emulsion layer of the silver halide photographic light-sensitive material of the present invention, but when there are two or more emulsion layers, it may be contained in any one layer.

Further, when the compound is contained in two or more layers, the type and amount of the compound added in each layer may be different. The compounds represented by the general formula [II] [■] may be one type or two or more types, and when two or more types are used, the combination thereof is arbitrary.

The content of the compound represented by the general formula [II] [111) is preferably 1 to 1000 μ/bo, more preferably 10
〜500■/bo.

The silver halide emulsion used in the light-sensitive material of the present invention includes:
Any of the conventional silver halide emulsions can be used.

The emulsion can be chemically sensitized by conventional methods, and can be optically sensitized to a desired wavelength range using a sensitizing dye.

Antifoggants, stabilizers, etc. can be added to the silver halide emulsion. Gelatin is advantageously used as 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 sparingly soluble synthetic polymer.

A photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, an antiirradiation layer, etc., but these layers and/or emulsion layers contain substances that may flow out from the photosensitive material during development. Alternatively, a bleaching dye may be included.

Photosensitive material H includes formalin scavenger-1 fluorescent brightener, capping agent, lubricant, image stabilizer, surfactant, color fog preventive agent, development accelerator, development retardant [Example] Hereinafter, the present invention will be carried out. Let's discuss an example. However, it goes without saying that the present invention is not limited to the examples shown below.

Example 1 In this example, a silver halide photographic material was prepared as follows.

First, an emulsion was prepared as follows.

(A) Preparation of monodisperse emulsion The reaction vessel conditions were 60°C, pAg=8, and p
While maintaining H=2, a monodisperse cubic emulsion of silver iodobromide containing 2 mol % of silver iodide with an average grain size of 0.3 μm was obtained by a double jet method. According to electron microscopic observation, the incidence of twins was 1% or less in number.

Using this emulsion as a seed crystal, it was further grown as follows.

Keep an aqueous gelatin solution at 40°C in a reaction vessel, dissolve the above seed crystals in it, and add aqueous ammonia and acetic acid.
Adjusted to H=9.5.

After adjusting PAg to 7.3 with ammoniacal silver ion solution,
While keeping the pH and pAg constant, a solution containing ammoniacal silver ions, potassium iodide, and potassium bromide was added by a double jet method to form a silver iodobromide layer containing 30 mol% of silver iodide. .

pH=9 using acetic acid and silver bromide. After adjusting pAg to 9.0, an ammoniacal silver ion solution and potassium bromide were added at the same time, and the particles were grown until they reached 90% of the grain size after growth. At this time, the pH was gradually lowered from 9.0 to 8.20.

After adding potassium bromide solution to make p A g = 11,
Furthermore, add ammoniacal silver ion solution and potassium bromide and p
Growth was carried out while gradually lowering the pH to 8 to obtain a silver iodobromide emulsion having an average diameter of 0.7 μm and containing 2 mol % of silver iodide.

Further, during the preparation of the emulsion, the following sensitizing dye (a) was added at an amount of 300 .mu.m per mole of silver in the emulsion, and the sensitizing dye (b) was added at an amount of 15 .mu.m to obtain an emulsion.

Sensitizing Dye (a) Sensitizing Dye (b) Next, a desalting step for removing excess salt was performed as shown below.

The silver halide emulsion solution was maintained at 40°C, and the following compound (a) (exemplified compound If-1 shown in JP-A-58-140322) was added to precipitate the silver halide grains, and the supernatant liquid After the water was discharged, pure water at 40°C was added.

Then, magnesium sulfate was added to precipitate the silver halide grains again, and the supernatant liquid was removed.

Repeat this again and add gelatin to pH 6.0.

An emulsion with a pAg of 8.5 was obtained.

[Silver nitrate 00 g Compound (a) (m indicates the degree of polymerization) The emulsion obtained above was kept at 55°C, chemically sensitized by adding chloroauric acid and hypo, and 4-hydroquine-
A photosensitive emulsion was obtained by adding 6-methyl-1,3,3a,7-chitrazaindene. This is referred to as emulsion (A).

On the other hand, polydisperse emulsion B and tabular grain C were prepared.

(B) Preparation of Polydisperse Emulsion Polydisperse emulsions were prepared using the following four solutions using the mixing method.

(Pour 4 cc of water solution B and 1 liter IC into a reaction vessel for emulsion preparation,
Stirring was carried out using a propeller type stirrer with a rotational speed of 300 rpm, and the reaction temperature was maintained at 55°C.

Next, the A solution was divided into 1 volume: 2 volumes, and 1 volume of 100-volume was added over 1 minute.

After continuing stirring for 10 minutes, the remaining 2 volumes of Solution A, 20
0- was added over 10 minutes. Stirring was continued for an additional 30 minutes. Then, add Solution D to adjust the pH of the solution in the reaction vessel.
was adjusted to 6.0 to stop the reaction.

The average particle size of the silver halide particles is 0.56 μm,
The degree of dispersion was 0.32. Also, the silver iodide content is 1.2
It was mol%.

(C) Preparation of tabular grains 10.5 g of K B r and thioether compound IO(CHz)gs(CHz)zS(C)lz)rO in water 12
10 cc of a 5 wt % aqueous solution of HO, and 30 g of gelatin were added and dissolved, and the mixture was maintained at 70°C.

Add 0.88 g of silver nitrate aqueous solution into this solution while stirring.
mol/f30m and an aqueous solution of potassium iodide and potassium bromide (molar ratio 3.5:96.5) 0.88 mol/la
d was added by double jet method, and the average particle size was 0.6.
Grains with a diameter of 0 μm and a silver iodide content of 3.5 mol % were obtained. After the addition of the mixed solution was completed, the temperature was lowered to 40''C.

To this, 24.6 g each of a condensate of sodium naphthalene sulfonate and formalin and M g SO4 were added.
/AgX1 mole was added, the pH was lowered to 4.0, and desalting was performed, and then 15 g of post-gelatin/AgX1 mole was added to prepare an emulsion.

The emulsions obtained in (B) and (C) above were subjected to chemical sensitization. That is, ammonium thiocyanate, chloroauric acid, and hypo were added to perform gold-sulfur sensitization.

After this chemical sensitization, 4-hydroxy-6-methyl-1
,3,3a,7-chitrazaindene. after that,
Spectral sensitization was carried out by adding 150 μm of potassium iodide/1 mole of AgX and the same amount of the same dye as in (A). The emulsions thus obtained are referred to as emulsions (B) and (C), respectively.

400 t-butyl-catechol was added as an additive to each of the above photosensitive emulsions (A), (B), and (C) per mole of silver halide.

Polyvinylpyrrolidone (molecular weight 10,000) 1.0g Styrene-maleic anhydride copolymer 2.5g Trimethylolpropane 10g Diethylene glycol 5g Nitrophenyl-triphenylphosphonium chloride 50mg.

1.3-dihydroxyhensen-4~ Ammonium sulfonate 2-Mercaptobenzimidazole- 5-Sodium sulfonate g 5mg.

Furthermore, the following coating solution was prepared as a protective layer solution.

That is, the following compounds were added in the following amounts per 1 g of gelatin to prepare a protective layer coating solution.

ゝC9H19 UI'1 1.1-dimethylol-1-brome 1-nitromethane 10■.

CHzCOO(C)Iz)qcH3 NaO3S CHCOO((jlz)zCH(CHz
)z7■.

General formula (n) Compound represented by (II[) Types and amounts are listed in Table 1. etc. to prepare an emulsion coating solution.

F+*Cq 0(CH2CH20)IOCR2CH2
OH3■.

Polymethyl methacrylate with an average particle size of 7 μm Matting agent consisting of rate 7■.

Colloidal silica 70cm with an average particle size of 0.013μm.

CHz = CHSO2CH20CH2SO□Cf
(=CHZ 7) Using each of the above coating solutions, the following samples were prepared.

That is, the following support was obtained. As the subbing liquid, a copolymer consisting of three types of monomers: 50-t% glycidyl methacrylate, 10-t% methyl methacrylate, and 40 wt% butyl methacrylate was used at a concentration of 10-t%.
A support was obtained by applying an aqueous copolymer dispersion diluted to give a subbing process.

Then, an emulsion layer and a protective layer were coated on the support.

Furthermore, coating was performed to insert a crossover cut layer containing a dye shown in Table 1 (a compound represented by general formula (I) or a comparative compound described below) between the emulsion layer and the subbing layer. Ta.

The following two methods were used to add the dye.

Dye Addition Method ■ The dyes used in each case were dispersed into solid fine particles using a ball mill according to the following procedure.

Water and a surfactant Alkanol XC (alkylnaphthalene sulfonate, manufactured by DuPont) were placed in a ball container, each dye was added, zirconium oxide beads were added, the container was sealed, and ball mill dispersion was performed for 4 days.

Thereafter, an aqueous gelatin solution was added and mixed for 10 minutes, and the beads were removed to obtain a coating solution.

Addition method @ After dissolving the dye in methanol containing a small amount of triethylamine, it was added to an aqueous gelatin solution to adjust the pH to 6.0 to prepare a coating solution.

The presence or absence of a crossover cut layer and the amount of dye added are as follows:
Shown in Table 1. The amount of dye added was set to be the amount shown in Table 1 as the amount of dye per double-sided sheet.

The following evaluations were performed on the obtained samples.

Measurement of sensitometry and evaluation of sensitivity〉 Using the standard light B described in the “New Edition, Lighting Data Book” as the light source, the same light was applied to both sides of the film with an exposure time of 0.1 seconds, 3.2 cm5, and a non-filter. It was exposed to light to match the amount of light. The above samples were processed with a χD-3R developer for 45 seconds using a 5RX-501 automatic processor (manufactured by Konica@), and the sensitivity of each sample was determined. Sensitivity was determined by calculating the reciprocal of the amount of light necessary for the blackening density to increase by 1.0, and expressed as relative sensitivity with the sensitivity in the case of sample NQ, 1 in Table 1-1 set as 100.

Similarly, Table 1-2 and Table 1-3 are expressed as relative sensitivities with the respective sample amounts and sensitivity of 1 being 100.

<MTF evaluation> 0.5 to 10 lines 10I11 lead MTF chart with a square wave is closely attached to the back side of the front side of ○-250 (manufactured by Konica ■) on a fluorescent screen, and the lead chart on the film surface is X-rays were irradiated so that the density of the unshielded portion was approximately 1.0 on both sides.

After the sample irradiated with X-rays as described above was developed in the same manner as described above, the recorded rectangular wave pattern was measured using a Sakura Microdensitometer Model M-5 (manufactured by Konica ■). The aperture size at this time was 300 μm in the parallel direction of the rectangular wave and 25 μm in the perpendicular direction, and the magnification was 20 times. The obtained MTF values are representative and are shown as values at a spatial frequency of 2.0 lines/mm.

<Evaluation of residual color> The obtained sample was processed using a Konica super rapid automatic processor (SR).
X-501, manufactured by Konica ■) was used to process the unexposed sample, and the level of residual color was evaluated in four stages as shown below.

A: No residual color B: There is a slight residual color, but it is good C: The residual color is so bad that it cannot be used D: The residual color is so bad that it is unbearable to look at ■ O: Comparative compound rapid automatic developing machine (SRX-501, Konica ■I) Processed.

The color tone judgment was based on the following criteria.

A: Pure black tone with no yellow tinge at all B: A slight yellow tinge is felt partially C: A slight yellow tinge is felt over the entire surface D A yellow tinge is felt when looking at the knee In the above, A or B There is no problem in color tone within this range.

As can be understood from the results in Table 1, the samples according to the present invention are highly sharp and have good sensitivity and color retention.
Deterioration of silver tone is also small.

On the other hand, for color tone determination, the density after development is 1.2±0.
A sample exposed to X-rays so as to have a particle size of 0.05 was also prepared.

The exposed sample thus obtained was subjected to sensitometry using the same sample and processing method as in Example 1 except that the sensitizing dyes (a) and (b) were omitted. Sharpness, residual color, and image tone were evaluated.

In the evaluation of MTF, fluorescent screen NR-160 (
(manufactured by Konica ■) was used.

Sensitivity was expressed as a relative value, with the sample design in Table 2 taken as IQO.

The results are shown in Table 2.

As shown in Table 2, this example also shows that the silver halide photographic material of the present invention has high sharpness as described above, and has no problems of decreased sensitivity or color retention, and This has the effect that there is no deterioration of silver tone after development.

Claims (1)

[Scope of Claims] 1. In a silver halide photographic material having a hydrophilic colloid layer including at least one photosensitive silver halide emulsion layer on a support, at least one of the hydrophilic colloid layers. contains solid fine particles of a compound represented by the following general formula [I], and at least one of the silver halide emulsion layers contains at least one compound represented by the following general formula [II] and/or Alternatively, a silver halide photographic material containing at least one compound represented by the following general formula [III]. General formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the general formula [I], R^1^1 and R^1^2 represent alkyl groups, and R^1^3 and R^1^4 represents a substitutable group. L^1, L^2, L^3 represent methine groups, n is 0, 1
, represents an integer of 2. l and m represent integers of 0 to 4. General formula [II] ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ In the general formula [II], R^2^1 and R^2^2 are hydrogen atoms, which may be the same or different, and have 1 to 1 carbon atoms. 5 represents an alkyl group, substituted alkyl group, or phenyl group, and R^2^3 is a hydroxy group, SO_3 group, or ▲
There are mathematical formulas, chemical formulas, tables, etc. ▼ represents a group (R^2^4 is an alkyl group having 1 to 5 carbon atoms or a substituted alkyl group), X represents a halogen atom or a p-toluenesulfonate group, and n represents Represents an integer from 2 to 5. However, R^2^3
If ▲ contains mathematical formulas, chemical formulas, tables, etc.▼, HX salt may be used. General formula [III] ▲There are mathematical formulas, chemical formulas, tables, etc.▼ or its HX salt R^3^1 and R^3^2 are hydrogen atoms, alkyl atoms having 1 to 5 carbon atoms, which may be the same or different, respectively. group, substituted alkyl group, R^3^3 and R^3^4 have 1 carbon number
-5 alkyl group or substituted alkyl group, n represents an integer of 2-5.