JPH07175161A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To restrain residual dye staining and to enhance silver color tone and antistaticness. CONSTITUTION:This photographic sensitive material contains silver halide grains in a silver halide emulsion layer on a support at least one of compounds represented by general formula I (R is 8-22 C acyl group), and flat silver halide grains having an average aspect ratio of >=2 and/or at least one of a dye represented by general formula II in an amount of >=300 mg/mol of silver halide, and/or at least one kind of compound selected from compounds represented by general formula II.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide photographic light-sensitive material, and more particularly to a silver halide photographic light-sensitive material having high sensitivity, high sharpness, improved residual color and silver tone, and excellent antistatic ability.

[0002]

2. Description of the Related Art In recent years, rapid processing and low replenishment of processing solution have been rapidly spread from the viewpoint of environment. In order to achieve these, the sensitivity and processing speed of the photosensitive material are high,
It must be strong in the processing properties due to low replenishment.

Further, there is a strong demand for improving the image quality of an image, and particularly, the sharpness is required. For this, it is essential to improve the sensitivity and covering power (CP), and it is known that tabular grains are remarkably advantageous as compared with normal crystal grains.

However, it is also known that tabular grains are inferior in processing performance such as residual color and silver tone to normal crystal grains, and a technique excellent in both sensitivity, covering power and residual color silver tone is known. Is desired.

Increasing the amount of the sensitizing dye is a general improving technique effective for increasing the sensitivity and the sharpness, but the residual color is largely deteriorated due to the rapid processing. It was found that the fog was deteriorated when the amount was further increased.

Further, not only the speeding up but also the high-speed film transporting apparatus such as an auto feeder and a chainer has become widespread, and thus the demand for static resistance has become more and more demanding. Therefore, the development of new antistatic technology has become a very important issue.

For example, a surfactant having a nonionic ethylene oxide group has been widely put to practical use as an antistatic agent, but it has been found that the development unevenness and the generation of roller marks are deteriorated as the processing speed is increased and the replenishment rate is reduced. It was

[0008]

In order to solve the above problems, the first object of the present invention is to provide a silver halide photographic light sensitive material having high sensitivity, improved residual color and silver tone, and excellent resistance to static. To provide the material. The second object is to provide a silver halide photographic light-sensitive material having high sharpness and improved residual color and fog. A third object is to provide a silver halide photographic light-sensitive material having a high antistatic ability and having improved development unevenness and graininess even during rapid processing.

[0009]

The above-mentioned object of the present invention relates to a silver halide photographic light-sensitive material having at least one silver halide emulsion layer on a support, and the above-mentioned general formula [1]
Which is a tabular silver halide grain having an average aspect ratio of 2 or more, and / or represented by the general formula [2]. Halogenated at least 300 mg per mol of silver and / or at least one compound selected from the group of compounds represented by the general formula [3]. It is achieved by a silver photographic light-sensitive material.

The present invention will be specifically described below.

First, the general formula [1] will be described.

The trehalose-6-fatty acid ester represented by the general formula [1] of the present invention can be obtained by condensing trehalose with a lower alkyl ester of a fatty acid. Further, as the low fatty acid ester, a fatty acid ester obtained by lower alkylating a naturally occurring fatty acid such as soybean fatty acid, beef tallow, cottonseed oil, olive oil, and coconut oil by a usual method can be used. That is, it can be obtained by using a conventional method for producing a sucrose alkyl ester (USP 2,893,990, JP-A-36-21717,
USP 3,480,616, JP-A-53-6130, USP 3,963,69
No. 9 bulletin).

The trehalose-6-fatty acid ester of the present invention can be obtained as the main reaction product obtained by these methods. Further, a small amount of trehalose-6,6′-fatty acid diester may be confirmed as unreacted trehalose or a by-product, but as a surfactant of the trehalose-6-fatty acid ester of the present invention even in a state where these are mixed. This is not a problem because the characteristics of are maintained.

The synthesis will be described below. In addition, wt% shown in the synthesis examples means wt%.

Synthesis Example 1 (Production of 6-lauroyl-trehalose [A]) 100 g of α, α-trehalose was dissolved in 400 ml of dimethylformamide. To this solution were added 62.5 g of methyl laurate and 1.0 g of potassium hydroxide. After heating to 100 ℃,
It was stirred for 12 hours. After cooling the reaction solution, it was extracted three times with 400 ml of hexane to remove unreacted methyl laurate. Approximately 20% dimethylformamide solution under reduced pressure
After concentrating to about 0 ml, 1000 ml of acetone was added to precipitate unreacted trehalose, which was removed by filtration. 10 precipitation
It was washed with 0 ml of n-butanol, and the washing solution was added to the filtrate. The filtrate was distilled under reduced pressure to obtain a pale yellow viscous syrup.

From this viscous syrup, residual unreacted substances were removed by silica gel column chromatography (developing solvent: chloroform / methanol = 4/1).
27.3 g of white solid was obtained. 13 C-NMR of the obtained solid
Carbonyl group at 175.5ppm in 2 vectors
Signals at trehalose 6 and 6'positions were confirmed at 64.4 and 62.64 ppm. Further, in the FAB-Ms (mass spectrum) measurement with NaI added, 547 peak [M (parent peak molecular weight) +23] was confirmed, confirming the production of 6-lauroyl-trehalose of the present invention.

Synthesis 2 (Production of 6-stearoyl-trehalose [B]) 32.1 g of a white solid was obtained in the same manner except that 62.5 g of methyl laurate used in Synthesis Example 1 was replaced with 87.1 g of methyl stearate. . Obtained solid NaI-added FAB-M
Since 631 peak [M (parent peak molecular weight) +23] was confirmed in s (mass spectrum) measurement, production of 6-stearoyl-trehalose of the present invention was confirmed.

Synthesis Example 3 (Production of Trehalose-6-soybean fatty acid ester [C]) 100 g of trehalose was dissolved in 400 ml of dimethylformamide. To this solution, 60 g of methyl soybean fatty acid and 1.0 g of potassium hydroxide were added. After heating up to 100 ° C., the mixture was stirred for 18 hours. After cooling the reaction solution, add 5 ml of 400 ml of hexane.
Unreacted soybean fatty acid methyl was removed by extraction twice. The dimethylformamide solution was concentrated under reduced pressure to about 200 ml, and 1500 ml of acetone was added to precipitate unreacted trehalose, which was removed by filtration. Precipitate 100 ml n-
After washing with butanol, the washing solution was added to the filtrate. By distilling the filtrate under reduced pressure, 41.6 g of trehalose-6-soy fatty acid ester containing 6-linoleyl-trehalose as a main component was obtained as a pale yellow viscous syrup.

Synthetic Example 4 (Production of trehalose-6-coconut oil fatty acid [D] ester) The same procedure was carried out except that 60 g of soybean fatty acid methyl ester used in Synthetic Example 3 was replaced with 60 g of coconut oil fatty acid methyl ester. As a syrup, 34.9 g of trehalose-6-coconut oil fatty acid ester containing 6-lauroyl-trehalose as a main component was obtained.

Next, the general formula [2] will be described.

In the general formula [2], R ₃ is a hydrogen atom,
It represents a lower alkyl group or an aryl group, and examples of the lower alkyl group include groups such as methyl, ethyl, propyl and butyl. Examples of aryl groups include, for example, phenyl groups.

Specific examples of the substituted or unsubstituted alkyl group represented by R ₁ and R ₂ include lower alkyl groups such as methyl, ethyl, propyl and butyl. Examples of the alkyl group with which R ₁ and R ₂ are substituted include allyl, methyl, and the like. Further, 2-hydroxyethyl, 4-hydroxybutyl and the like as the hydroxyalkyl group, 2-acetoxyethyl as the acetoxyalkyl group,
2-acetoxybutyl, etc. 2- as a carboxyalkyl group
2- as a sulfoalkyl group such as carboxyethyl, 3-carboxypropyl, 2- (2-carboxyethoxy) ethyl, etc.
Sulfoethyl, 3-sulfopropyl, 3-sulfobutyl, 4-
Examples thereof include sulfobutyl and 2-hydroxy-3-sulfopropyl.

Examples of the alkenyl group represented by R ₁ and R ₂ include allyl, butynyl, octenyl and oleyl. Furthermore, examples of the aryl group represented by R ₁ and R ₂ include phenyl and carboxyphenyl.

However, as described above, at least one of R ₁ and R ₂ is a sulfoalkyl group or a carboxyalkyl group.

Z ₁ and Z ₂ represent a group of non-metal atoms necessary for completing a substituted or unsubstituted benzene ring.

[0026] In Matashiki (2) X ₁ ^- Examples of the anion represented by, for example, chloride, bromide, iodide ion, thiocyanate ion, sulfate ion, perchlorate ion, p- toluenesulfonate ion, ethyl Examples thereof include sulfate ion.

Next, typical examples of the compound represented by the general formula [2] will be given, but of course, the present invention is not limited to this example.

[0028]

[Chemical 3]

[0029]

[Chemical 4]

[0030]

[Chemical 5]

[0031]

[Chemical 6]

[0032]

[Chemical 7]

[0033]

[Chemical 8]

[0034]

[Chemical 9]

[0035]

[Chemical 10]

[0036]

[Chemical 11]

The amount of the compound represented by the general formula [2] added is from 300 to 1000 mg, preferably 3 per mol of silver halide.
It is from 00 to 600 mg.

Next, the general formula [3] will be described.

The compound represented by the general formula [3] may be contained in the silver halide emulsion layer or other layers. Its preferred content is 1 mg to 10 g per m ² , more preferably
It is 10 mg to 5 g.

Among the compounds represented by the general formula [3], the following compounds are particularly preferably used in the present invention.

[0041]

[Chemical 12]

[0042]

[Chemical 13]

[0043]

[Chemical 14]

As the support of the present invention, for example, a polyethylene terephthalate film has an anthraquinone type, an azo type, an azomethine type, an indoaniline type, an oxonol type, a triphenylmethane type, a carbocyanine type, which has an absorption maximum at 570 μm to 700 μm. A colored support may be used by selecting a desired dye from styryl dyes and the like.

These dyes are described, for example, in JP-A-61-48854,
61-7838, 60-243654, 60-32851, 57-268
It is a photographic dye disclosed in No. 49 and the like. Preferred coloring dyes for the present invention include anthraquinone dye M
acrolex Blue RR (Color index Soluvent Blue 97).

The surface of the support according to the present invention may be subjected to a subbing treatment in order to improve the contact with a hydrophilic colloid layer such as a photographic emulsion layer, as is generally done, and the subbing surface may be treated before the subbing treatment. Alternatively, corona discharge, ultraviolet irradiation, flame treatment, or the like may be performed later.

On the support of the present invention, an undercoat layer (eg, JP-A-52-104913, JP-A-59-19940, and JP-A-59-199) in addition to the emulsion layer.
No. 41, U.S. Patents 2,627,088, 2,698,235, 2,698,
No. 240, No. 3,615, 556, Japanese Patent Publication No. 44-13278, No. 45-10988
Layer formed by the undercoating treatment described in No.), an antihalation layer, a crossover cut layer, a colored layer, an intermediate layer, a protective layer, an antistatic layer, and the like. These layers may be coated on both sides of the support.

The emulsion used in the silver halide photographic light-sensitive material of the present invention can be produced by a known method. For example, Research Disclosure (RD) No.17643 (December 1978)
Pages 22-23, 1. Emulsion Preparation and
types) and the same (RD) No. 18716 (November 1979) -Page 648.

The emulsion of the silver halide photographic light-sensitive material according to the present invention is described in, for example, "The theory of the phot" by TH James.
ographic process ”4th edition, published by Macmillan (1977) 38
~ Method described on page 104, GF Daufin "Photoemulsion Chemistry"
“Photographic Emulsion Chemistry”, Focal press
Published by P. Glafkides, "Physics and Chemistry of Photography," published by 1966, "Chi
mie et physique photographique ”published by Paul Montel
(1967), VL Zelikman et al., "Manufacturing and coating photographic emulsions".
“Making and Coating photographic Emulsion” Focal
It is prepared by the method described in press (1964).

That is, the forward mixing method, the reverse mixing method, the double jet method, the solution method such as the neutral method, the acidic method and the ammonia method,
It can be produced by using mixing conditions such as controlled double jet method, conversion method, particle preparation conditions such as core / shell method, and combinations thereof.
Preferred emulsions include monodisperse emulsions in which silver iodide is localized inside the grains.

Here, the monodisperse refers to a dispersion system in which 95% or more of particles are within ± 40% of the number average particle diameter. Here, the number average particle diameter is the number average diameter of the projected area diameters of the particles.

The internal structure of the silver halide grains is arbitrary, but a core-shell structure having a different silver halide composition is preferred.

The shell is formed by coating with silver halide such as silver iodobromide, silver chloroiodobromide, silver chlorobromide, silver bromide and silver chloride. 0.01 μm from the outer surface
Above all, especially the shell part with a thickness of 0.01 to 0.5 μm contains 1 silver iodide.
Silver iodobromide containing 0 mol% or less, particularly preferably silver iodobromide formed with 5 mol% or less of silver iodide.
Tabular silver halide grains may be used in the silver halide photographic light-sensitive material of the present invention. The tabular silver halide emulsion is
The average value of particle diameter / thickness (referred to as aspect ratio) (referred to as average aspect ratio) is 2 or more, preferably 3 to 10
Is.

The method for producing a tabular silver halide emulsion is described in JP-A Nos. 58-113926, 58-113927, 58-113934 and 6-113.
It is also possible to refer to 2-1855, European Patents 219,849, 219,850 and the like.

The emulsion may be subjected to a water washing method such as a noodle water washing method or a flocculation sedimentation method in order to remove soluble salts. A preferred washing method is, for example, Japanese Patent Publication Sho
Particularly preferable desalting method is a method using an aromatic hydrocarbon aldehyde resin containing a sulfo group described in JP-A No. 35-16086 or a method using G3, G8 and the like as an aggregation polymer agent described in JP-A-63-158644. Can be mentioned.

In the emulsion used in the silver halide photographic light-sensitive material of the present invention, various photographic additives can be used in the steps before and after physical ripening or chemical ripening. Known additives include, for example, Research Disclosure
No.17643 (December 1978), No.18716 (November 1979) and the same
The compounds described in No. 308119 (December 1989) are mentioned. The types of compounds and the places where they are described in these three Research Disclosures are listed below.

Additive RD-17643 RD-18716 RD-308119 Page Classification Page Classification Page Classification Chemical sensitizer 23 III 648 Upper right 996 III Sensitizing dye 23 IV 648-649 996-8 IV Desensitizing dye 23 IV 998 B Development Accelerator 29 XXI 648 Upper right Fog inhibitor / stabilizer 24 IV 649 Upper right 1006-7 VI Whitening agent 24 V 998 V Hardener Surfactant 26-7 XI 650 Right 1005-6 XI Antistatic agent 27 XII 650 Right 1006 to 7 XIII Plasticizer 27 XII 650 Right 1006 XII Sliding agent 27 XII Matting agent 28 XVI 650 Right 1008 to 9 XVI Binder 26 XXII 1003 to 4 IX Support 28 XVII 1009 XVII

[0058]

EXAMPLES Examples of the present invention will be described below. However, as a matter of course, the present invention is not limited to the examples described below.

Example 1 (Preparation of polyethylene terephthalate film) Polyethylene terephthalate was melted by an extruder and extruded from a slit diamond onto a quenching rotary drum to form an amorphous sheet having a film thickness of 3.2 mm, and then in the longitudinal direction. It was stretched 4.0 times at 95 ° C., then stretched 4.5 times at 110 ° C. in the transverse direction, heat-set at 210 ° C. and then cooled to obtain a transparent support having a thickness of 178 μm. The transmittance of the obtained film was 85%. The thickness of each amorphous sheet was changed to 50
Film supports of μm, 80 μm, 100 μm, 120 μm, 140 μm, and 160 μm were prepared.

Copolymer obtained by diluting a copolymer composed of three kinds of monomers of 50% by weight of glycidyl methacrylate, 10% by weight of methyl acrylate, and 40% by weight of butyl acrylate on the obtained film so that the concentration becomes 10% by weight. The combined aqueous portion dispersion was applied as an undercoat layer on both sides of the film support.

(Preparation of Sample Film) Monodispersed silver iodobromide grains containing 2.0 mol% of silver iodide having an average grain size of 0.2 μm were used as cores, and silver iodobromide containing 30 mol% of silver iodide was prepared. pH9.1, pAg
The average grain size of the tetradecahedral was 7.7, and then potassium bromide and silver nitrate were added in equimolar amounts at pH 8.0 and pAg 9.1 to obtain silver iodobromide grains having an average silver iodide content of 2.1 mol%. Diameter 0.60μ
m (A) monodisperse emulsion grains were prepared.

A tabular silver iodobromide emulsion (B) having the following average grain size of 0.6 μm was also prepared.

That is, 0.5 g of gelatin 30 g, potassium bromide 10.5 g, HO (CH ₂ ) ₂ S (CH ₂ ) ₂ S (CH ₂ ) ₂ S (CH ₂ ) ₂ OH in 1 liter of water.
% 10% aqueous solution was added and dissolved, and the solution was kept at 63 ℃ (pAg
= 9.1, pH = 6.5), 30 ml of 0.90 mol of silver nitrate solution and 30 ml of 0.90 mol of mixed solution of potassium iodide and potassium bromide (molar ratio 1:99) were added at the same time for 15 seconds. 1 ml of a mixed solution of 600 ml of a silver nitrate solution having a molar ratio of 96.5: 3.5 and potassium bromide and potassium iodide having a molar ratio of 60.
A tabular silver iodobromide emulsion was prepared by simultaneously adding 0 ml and 56 minutes.

The tabular silver halide grains obtained had an average grain size of 0.6 μm, a thickness of 0.20 μm and a silver iodide content of 3.0 mol%.

Each of the emulsions (A) and (B) thus obtained was desalted of excess salts by a usual flocculation method.

That is, the temperature was maintained at 40 ° C., and a formalin condensate of sodium naphthalenesulfonate and an aqueous solution of magnesium sulfate were added to cause coagulation. After removing the supernatant liquid, pure water up to 40 ° C. was further added, and an aqueous magnesium sulfate solution was added again to cause coagulation to remove the supernatant liquid. Ammonium thiocyanate was added to each of these particles in an amount of 1.9 × 10 ^-3 mol per mol of silver
And an appropriate amount of chloroauric acid and hypo, and a compound of the general formula [2] as shown in Table 1 below, and then 4-hydroxy-6.
-Methyl-1,3,3a, 7-tetrazaindene was stabilized at 3 × 10 ^-2 mol.

Using the three types of emulsions thus obtained, the following Table 1 was used.
The emulsions (1) and (2) shown in (2) were prepared. Emulsion (1) was prepared using the above-mentioned grains (A) and emulsion (2) was prepared using the grains (B). The emulsion had the pH of 6.45 at 35 ° C after the additives described below were added.
To prepare a coating solution.

The emulsion layer has a silver conversion value of 2.0 g / side per side.
m ² and the protective layer were coated simultaneously on both sides with the above-mentioned support at a speed of 90 m / min with two slide hopper type coaters so that the amount of gelatin applied was 0.99 g / m ² . The protective layer was prepared with the composition described below.

The additives used in the emulsion are as follows. The addition amount is shown as the amount per mol of silver halide.

Lime-treated ossein gelatin 90 g t-butylcatechol 400 mg Polyvinylpyrrolidone (molecular weight 10000) 1.0 g Trimethylolpropane 10 g Styrene-maleic anhydride copolymer 2.5 g Diethylene glycol 5 g Nitrophenyl-triphenylphosphonium chloride 50 mg 1,3- Ammonium dihydroxybenzene-4-sulfonate 4 g 2-Mercaptobenzimidazole-5-sodium sulfonate 15 mg 1-Phenyl-5-mercaptotetrazole 1 mg C ₄ H ₉ OCH ₂ CH (OH) CH ₂ N (CH ₂ COOH) ₂ 1g 1,1-Dimethylol-1-bromo-1-nitromethane 10mg

[0071]

[Chemical 15]

The surface protective layer liquid contains 1 g of gelatin,
The following compounds were added. Further, as shown in Table 1, compounds represented by the general formulas [1] and [3] were added.

[0073]

[Chemical 16]

C ₈ F ₁₇ SO ₃ K 3 mg Polymethylmethacrylate having an average particle size of 5 μm (matting agent) 7 mg Colloidal silica (average particle size 0.013 μm) 70 mg iso-amyl-n-decylsulfosuccinate sodium salt 7 mg (CHO ) ₂ 8mg HCHO 6mg 2,4-Dichloro-6-hydroxy-1,3,5-triazine sodium salt 30mg Sample evaluation method (Automatic processor processing)
(Konica Corp.) using SR as the developing solution and DR (Konica Corp.) as the fixing solution at a developing temperature of 36.5 ° C, a fixing temperature of 33 ° C, and a washing water temperature of 18 ° C. Process for 30 seconds (SRX-5
03 was modified so that the line speed could be processed for 30 seconds), and the following items were evaluated.

(Evaluation of Persistence) The prepared sample was processed by the above-mentioned automatic developing machine without being exposed, and the processed sample was measured for the transmission density in green light. It can be seen that the larger the value is, the more the residual color contamination is and the less excellent it is.

(Sensitometry) The prepared sample was sandwiched between fluorescent intensifying screens SRO-250 (manufactured by Konica Corporation), and a tube voltage of 90 KVP,
An X-ray was irradiated at 20 mA for 0.05 seconds, a sensitometric curve was created by the distance method, and the sensitivity and the maximum density (Dmax) were obtained. Sensitivity value is X required to obtain fog + 1.0 density
It was calculated as the reciprocal of the dose. The result shows that the sensitivity of sample No. 1 is 100.
Is expressed as relative sensitivity.

(Evaluation of Sharpness) (MTF) The prepared sample was sandwiched between fluorescent intensifying screen SRO-250 (manufactured by Konica Corporation), irradiated with X-ray at a tube voltage of 90 KVP, and a rectangular wave chart was measured. The MTF was measured by the contrast method.

The MTF showed a spatial frequency of 2.0 LP / mm.

(Evaluation of development unevenness) The density of the prepared sample was 1.
The exposure was performed so as to be 2 ± 0.1, and the above-mentioned development processing was performed.

The portion developed to a density of 1.2 ± 0.1 was visually observed and the following four-stage evaluation was performed.

A: Very good B: No problem in practical use C: Slightly inferior D: Very inferior (Evaluation of silver tone) The prepared sample had a transmission density of 1.
After exposure so as to have a value of 2, development processing was performed using the automatic developing machine. Obtained developed sample 50 ℃, 80%
After 7 days under RH temperature and humidity, observation was performed with a Schaukasten, and the silver color tone due to transmitted light was visually evaluated.

Evaluation 1. Yellowish black 2. Black with a slight yellow tint 3. Reddish black color 4. 4. Reddish black color 5. Pure black (Evaluation of roller mark property) The pressure mark = roller mark by the roller of the automatic processor was evaluated as follows. That is, the treatment was carried out by the same treatment method as that for sensitometry in the state of uniform exposure so that the blackened density after treatment was 0.8 to 1.2. The roller marks generated at that time were visually evaluated and classified into the following 5 grades.

5: No generation of roller marks 4: Very slight occurrence 3: Some occurrence (within practical use permit) 2: Many occurrences (outside practical use permit) 1: Very large occurrence 1: Contamination of residual color Many results are not shown in Tables 1 and 2 above.

(Evaluation of degree of occurrence of static marks) The unexposed sample was conditioned at a temperature of 25 ° C. and a humidity of 20% RH for 2 hours, rubbed independently with a neoprene rubber roller, and then subjected to the above-mentioned development treatment.

The evaluation was performed in the following four stages.

A: No static mark was generated B: Static mark was slightly generated C: Static mark was generated D: Static mark was generated D: Static mark was generated on the entire surface. Tables 2 to 4 show the results obtained by each evaluation.

[0087]

[Table 1]

[0088]

[Table 2]

From the results shown in Table 2, it can be seen that the samples of the present invention are superior in sensitivity, static, residual color, and silver tone to the comparison.

[0090]

[Table 3]

From the results shown in Table 3, it can be seen that the samples of the present invention are superior in sensitivity, residual color and sharpness to the comparison.

[0092]

[Table 4]

From the results shown in Table 4, it can be seen that the samples of the present invention are superior in static marks, development unevenness and roller marks as compared with the comparison.

[0094]

INDUSTRIAL APPLICABILITY According to the present invention, the residual color and the silver tone are improved with high sensitivity, the sharpness is improved and the fog is improved, the antistatic property is high, and the uneven development and the graininess are caused even during the rapid processing. It was possible to provide an improved silver halide photographic light-sensitive material.

Claims (3)

[Claims] 1. A silver halide photographic light-sensitive material having at least one silver halide emulsion layer on a support,
It is characterized in that it contains at least one compound selected from the group of compounds represented by the following general formula [1], and that the silver halide emulsion is tabular silver halide grains having an average aspect ratio of 2 or more. Silver halide photographic light-sensitive material. [Chemical 1] [In the formula, R represents an acyl group having 8 to 22 carbon atoms. ] 2. A silver halide photographic light-sensitive material having at least one silver halide emulsion layer on a support,
The silver halide emulsion contains at least one compound selected from the group of compounds represented by the general formula [1], and 1 mol of silver contains at least one of the dyes represented by the following general formula [2]. A silver halide photographic light-sensitive material characterized by containing 300 mg or more per unit. [Chemical 2] [Wherein R ₁ and R ₂ each represent a substituted or unsubstituted three groups described below; an alkyl group, an alkenyl group or an aryl group,
At least _one of R ₁ and R ₂ is a sulfoalkyl group or a carboxyalkyl group. R ₃ represents a hydrogen atom, a lower alkyl group or an aryl group. X ₁ ^- is an anion, Z ₁
And Z ₂ are non-metal atom groups necessary for completing a substituted or unsubstituted benzene ring, and n represents 1 or 2. (However, n is 1 when forming an inner salt.)] 3. A silver halide photographic light-sensitive material having at least one silver halide emulsion layer on a support,
It contains at least one compound selected from the group of compounds represented by the general formula [1], and at least one compound selected from the group of compounds represented by the following general formula [3]. Characteristic silver halide photographic material General formula [3] R ₄ -L- (CH ₂ CH ₂ O) _n H [In the formula, R ₄ represents a substituted or unsubstituted alkyl group, alkenyl group or aryl group. , L is an oxygen atom, -NR _5-
Represents a group, a —CONR ₅ — group or a —COO— group. R ₅ represents a hydrogen atom, an alkyl group, or - represents a _{(CH 2 CH 2 O) n} H group, wherein n is an integer of 2 to 50. ]