JP2681654B2 - Silver halide photographic material - Google Patents

Description

The present invention relates to a silver halide photographic light-sensitive material, and particularly to a silver halide photographic light-sensitive material capable of obtaining a photographic image with high contrast.

[Background of the Invention]

Conventionally, silver halide photographic light-sensitive materials have been widely used in the photomechanical process. This photolithography process step includes the step of converting a continuous tone original into a halftone image, that is, the step of converting the continuous tone density change of the original into a set of halftone dots having an area proportional to this density. Has been.

In this conversion step, a silver halide photographic light-sensitive material having a high contrast photographic property is used to photograph a document through an intersecting screen or a contact screen, and this is developed to form a halftone image. Was doing.

In order to impart a high contrast property to an image, there is a conventional method described in JP-A-56
-106244 and U.S. Pat.No. 4,686,167, a silver halide photographic light-sensitive material contains a compound such as hydrazine as a so-called contrast-increasing agent, and further, the contrast-increasing properties of this compound are effectively exhibited. It has been adjusted so as to obtain a desired photographic light-sensitive material by using silver halide grains or by appropriately combining other photographic additives. The silver halide photographic light-sensitive material thus obtained is certainly stable as a light-sensitive material, and a high-contrast photographic image can be obtained by processing with a developer capable of rapid processing. .

Further, JP-A-63-29751 proposes a high-contrast light-sensitive material using a novel hydrazine derivative, and the contrast has been improved.

However, in such a silver halide photographic light-sensitive material, when a continuous tone original is converted into a halftone dot image, a sandy pin-like fog, that is, a black pin is generated in the halftone dot, and the quality of the halftone dot image is increased. Had the problem of damaging. Therefore, in order to solve this problem, measures such as adding various stabilizers and inhibitors having a hetero atom have been conventionally taken, but it was not always effective.

[Object of the invention]

The present invention has been made to solve the above problems. That is, an object of the present invention is to provide a silver halide photographic light-sensitive material which has high contrast photographic characteristics and which can exhibit high-contrast photographic characteristics by suppressing fog generated in a halftone dot image.

[Configuration of the invention]

The above object of the present invention is achieved by a silver halide photographic light-sensitive material containing a compound represented by the following general formula [I].

In the formula, R ₁ represents a monovalent substituent capable of substituting on the benzene ring. n represents 0 to 4, and when n is 2 or more, R ₁ may be the same or different.

R ₂ represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted carbamoyl group, or a substituted or unsubstituted heterocyclic group.

X is a carbonyl group, a sulfonyl group, a sulfoxy group, (R ₃ has the same meaning as R ₂ ), and represents an N-substituted or unsubstituted imino group.

Y represents a hydroxyl group, an amino group, a carboxy group, or a mercapto group. Note that a combination of X is a carbonyl group and Y is a hydroxyl group or an amino group substituted with an ethyl group is excluded.

 Further, the general formula [I] will be described in detail.

Examples of the monovalent substituent represented by R ₁ include a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyloxy group, an alkylthio group, an arylthio group, a sulfonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, Carbamoyl group, sulfamoyl group, acyl group, amino group, alkylamino group, arylamino group, acylamino group, sulfonamide group, arylaminothiocarbonylamino group, hydroxy group,
Examples thereof include a carboxy group, a sulfo group, a nitro group and a cyano group.

The alkyl group represented by R ₂ is an alkyl group having 1 to 18 carbon atoms (methyl group, ethyl group, propyl group, butyl group, octyl group, dodecyl group, octadecyl group, etc.), or an aryl group (eg, phenyl group, naphthyl group). ), Preferably a phenyl group.

Examples of the carbamoyl group represented by R ₂ include a carbamoyl group and a carbamoyl group substituted with an alkyl group (for example,
And a carbamoyl group substituted with an allyl group.

Examples of the heterocyclic group represented by R ₂ include thienyl, furyl, pyrrolyl, pyrazolyl, imidazolyl, pyridyl,
Pyrimidinyl and the like can be mentioned. The groups which can be substituted on these alkyl group, aryl group and heterocyclic group are as described above.
A monovalent substituent which can be substituted for R ₁ can be mentioned.

X represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or a substituted or unsubstituted imino group (imino group, N-methylimino group, N-phenylimino group, etc.), preferably a carbonyl group.

Y is a hydroxyl group, a substituted or unsubstituted amino group (amino group,
A methylamino group, an anilino group, etc.), a carboxy group, and a mercapto group are preferred, but a hydroxyl group is preferred. Note that a combination of X is a carbonyl group and Y is a hydroxyl group or an amino group substituted with an ethyl group is excluded.

The compound represented by the general formula [I] preferably contains at least one diffusion resistant group or silver halide adsorption promoting group in the molecule.

As the anti-diffusion group, a parast group commonly used in immobile photographic additives such as couplers is preferable. The ballast group is a group having a carbon number of 8 or more, which is relatively inert to photographic properties. For example, the ballast group is selected from an alkyl group, an alkoxy group, a phenyl group, an alkylphenyl group, a phenoxy group and an alkylphenoxy group. Can be.

Silver halide adsorption promoting groups include thiourea groups, thiourethane groups, heterocyclic thioamide groups, mercapto heterocyclic groups,
Examples include groups described in U.S. Patent No. 4,385,108, such as triazole groups.

It is considered that the compound represented by the general formula [I] of the present invention rapidly releases an active species by an intramolecular rearrangement reaction after being oxidized by an oxidant of a developing agent in an exposed portion of a silver halide photographic light-sensitive material.

(Example) In the case of Y: OH The reaction type represented by the above reaction formula is clearly different from that of JP-A-63-29751, and an active species exhibiting a superhardening effect under mild conditions (low pH, low temperature) by this reaction. Is considered to be released.

H in —NHNH— in the general formula [I], that is, a hydrogen atom of hydrazine, is a sulfonyl group (eg, methanesulfonyl, toluenesulfonyl, etc.), an acyl group (eg, acetyl,
It may be substituted with a substituent such as trifluorocetyl) and an oxalyl group (eg, ethoxalyl), and the compound represented by the general formula [I] includes such a compound.

Typical compounds represented by the above general formula [I] are shown below. However, it goes without saying that the specific compounds of the general formula [I] that can be used in the present invention are not limited to these compounds.

Illustrative compounds Next, synthetic examples of specific compounds of the present invention will be described.
The synthetic scheme of the compound (2) is as follows.

This synthesis method can be synthesized with reference to, for example, the synthesis method of JP-A-55-52050.

The starting material 2-hydrazino-5-nitrophenol can be synthesized, for example, according to the following synthetic scheme.

The silver halide photographic light-sensitive material of the present invention contains the compound represented by the above general formula [I]. The amount of the compound of the general formula [I] contained in the photographic light-sensitive material of the present invention is It is preferably 5 × 10 ⁻⁷ to 5 × 10 ⁻¹ mol per mol of silver halide contained in the photographic light-sensitive material of the present invention.

Particularly, it is preferably in the range of 5 × 10 ⁻⁵ mol to 1 × 10 ⁻² mol.

The silver halide photographic light-sensitive material of the present invention has at least one silver halide emulsion layer. That is, at least one silver halide emulsion layer may be provided on one side of the support, or at least one layer may be provided on each side of the support. The silver halide emulsion can be coated directly on the support or can be coated via another layer such as a hydrophilic colloid layer containing no silver halide emulsion. A hydrophilic colloid layer as a protective layer may be provided on the emulsion layer. Further, the silver halide emulsion layer may be separately applied to silver halide emulsion layers having different sensitivities, for example, high sensitivity and low sensitivity. In this case, an intermediate layer composed of a hydrophilic colloid may be provided between each silver halide emulsion layer. An intermediate layer may be provided between the silver halide emulsion layer and the protective layer. That is, if necessary, a non-photosensitive hydrophilic colloid layer such as an intermediate layer, a protective layer, an antihalation layer, and a backing layer may be provided.

In order to incorporate the compound represented by the general formula [I] into the silver halide photographic light-sensitive material of the present invention, it is preferable to incorporate it into the hydrophilic colloid layer in the material, particularly preferably the silver halide emulsion layer and / or Alternatively, it may be contained in a hydrophilic colloid layer adjacent to the silver halide emulsion layer.

However, the compound of the general formula [I] may be contained in another layer instead of the silver halide emulsion layer. For example, it may of course be contained in another hydrophilic colloid layer which is laminated and coated on this emulsion layer.

The most preferred embodiment of the present invention is that the compound of general formula [I] is contained in the silver halide emulsion layer, and the hydrophilic colloid contained in the silver halide emulsion layer and the hydrophilic colloid layer is gelatin or a gelatin derivative. It is a certain silver halide photographic light-sensitive material.

The compound of the general formula [I] of the present invention can be incorporated into the silver halide emulsion layer and / or the hydrophilic colloid layer by a method of dissolving the hydrazide compound in appropriate water and an organic solvent, or by adding it to an organic solvent. Examples thereof include a method in which the dissolved liquid is dispersed in a hydrophilic colloid matrix such as gelatin or a gelatin derivative and then added, or a method in which it is dispersed and added in latex. The present invention may use any of these methods.

When added, the compound of the above general formula [I] is
Even when used alone, preferable image characteristics can be obtained.
Further, even if two or more kinds of these compounds are used in combination at an appropriate ratio, they do not adversely affect the image characteristics.

As one preferred embodiment of the present invention, the compound of the general formula [I] according to the present invention may be added to the silver halide emulsion layer. In another preferred embodiment of the present invention, it is added to a hydrophilic colloid layer directly adjacent to a hydrophilic colloid layer containing a silver halide emulsion layer, or to an adjacent hydrophilic colloid layer via an intermediate layer.

As another addition method, the compound of the above general formula [I] is dissolved in a suitable organic solvent, for example, water, alcohols such as methanol and ethanol, ethers, esters, etc. The silver halide photographic light-sensitive material may be incorporated in the silver halide photographic light-sensitive material by coating it directly on the outermost layer of the silver halide emulsion layer.

Next, the silver halide used in the silver halide photographic light-sensitive material of the present invention will be described. Any composition can be used as the silver halide. Examples are silver chloride, silver chlorobromide, silver chloroiodobromide, pure silver bromide and silver chloroiodobromide.
The average grain size of the silver halide grains is preferably in the range of 0.05 to 0.5 .mu.m, among which 0.10 to 0.40.
μm is preferred.

The particle size distribution of the silver halide grains used in the present invention is arbitrary, but is preferably adjusted so that the value of the monodispersity defined below is from 1 to 30, and more preferably from 5 to 20.

The monodispersity is 10 divided by the standard deviation of the particle size divided by the average particle size.
It is defined as a value multiplied by 0. The grain size of silver halide grains is represented by the edge length of cubic grains for convenience.

When the present invention is carried out, for example, as a grain of silver halide, a grain having a multi-layered laminated structure of at least two layers can be used. For example, the core portion is silver chloride, the shell portion is silver bromide, On the contrary, it is possible to use silver chlorobromide grains in which the core portion is silver bromide and the shell portion is silver chloride. At this time, iodine can be contained in any layer, but it is preferable that iodine be within 5 mol%.

When preparing the silver halide emulsion of the present invention, a rhodium salt can be added to control the sensitivity or gradation. In general, the rhodium salt is preferably added at the time of grain formation, but may be added at the time of chemical ripening or at the time of preparing an emulsion coating solution.

The rhodium salt used in the present invention may be a simple salt or a double salt. Typically, rhodium chloride, rhodium trichloride, rhodium ammonium chloride and the like are used.

The amount of the rhodium salt to be added can be freely changed depending on the required sensitivity and gradation, but is from 10 ⁻⁹ mol to 10 ⁻⁴ per mol of silver.
A molar range is useful.

When the rhodium salt is used, other inorganic compounds such as iridium salt, thallium salt, cobalt salt and gold salt may be used together. Iridium salts can often be preferably used in the range of 10 ⁻⁹ to 10 ⁻⁴ mol per mol of silver for the purpose of imparting high illuminance characteristics.

The silver halide used in the present invention can be sensitized by various chemical sensitizers.

Examples of the sensitizer include active gelatin, sulfur sensitizer (sodium thiosulfate, allylthiocarbamide, thiourea,
Allyl isothiocyanate, etc., Selenium sensitizer (N, N-
Dimethyl selenoureas, selenoureas, etc.), reduction sensitizers (triethylenetetramine, stannous chloride, etc.), such as potassium chloroaurite, potassium aurithiocyanate, potassium chloroaurate, 2-aurothio-3-
Various noble metal sensitizers represented by methylbenzothiazolium chloride, ammonium chloroparadate, potassium chloroplatinate, sodium chloroparadite and the like can be used alone or in combination of two or more. When a gold sensitizer is used, rhodamonmon can be used as an auxiliary agent.

The present invention is preferably applied when surface latent image type grains are contained as silver halide grains. Here, the surface latent image type particles mean particles prepared so that the sensitivity when treated with a surface developing solution in the art is higher than the sensitivity when treated with an internal developing solution.

The silver halide emulsion used in the present invention may be a mercapto (1-phenyl-5-mercaptotetrazole,
2-mercaptobenzthiazole), benzotriazoles (5-bromobentriazole, 5-methylbenzotriazole), benzimidazoles (6-nitrobenzimidazole, etc. can be used for stabilization or fogging suppression. A sensitizing dye, a plasticizer, an antistatic agent, a surfactant, a hardener and the like can be added to the silver halide emulsion used in the present invention.

Gelatin is suitable as the binder of the compound of general formula [I] according to the present invention for the hydrophilic colloid layer, but hydrophilic colloids other than gelatin can also be used.

Examples of the support used in the present invention include Paraita paper,
Polyethylene coated paper, polypropylene synthetic paper, glass plate, cellulose acetate, cellulose nitrate,
For example, typical examples include a polyester film such as polyethylene terephthalate, a polyamide film, a polypropylene film, a polycarbonate film, and a polystyrene film. These supports are appropriately selected depending on the intended use of the silver halide photographic light-sensitive material.

To develop the silver halide photographic light-sensitive material of the present invention, the following developing agents are used.

Typical examples of HOCH = CHnOH type developing agents include hydroquinone, catechol, and pyrogallol.

Further, as the HOCH = CHnNH ₂ type developer, ortho and para aminophenols or aminopyrazolones are typical ones, and 4-aminophenol, 2-amino-6
-Phenylphenol, 2-amino-4-chloro-6-
Phenylphenol, 4-amino-2-phenylphenol, 3,4-diaminophenol, 3-methyl-4,6-diaminophenol, 2,4-diaminoresorcinol, 2,
There are 4,6-triaminophenol, N-methyl-p-aminophenol, N-β-hydroxyethyl-p-aminophenol, p-hydroxyphenylaminoacetic acid, 2-aminonaphthol and the like.

Heterocyclic developers include 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, 1-phenyl -4-methyl-
4-hydroxymethyl-3-pyrazolidone and the like can be mentioned.

In addition, The James of TH Theory of the Photographic Process 4th Edition (The Theory of
the Photographic Process, Fourth Edition) No. 291-33
Page 4 and the Journal of the American Chemical Soc
Society, Vol. 73, page 3,100 (1951) and the like can be effectively used for the silver halide photographic light-sensitive material of the present invention.

These developers may be used alone or in combination of two or more, but it is preferable to use two or more in combination. The effect of the present invention is not impaired even if a sulfite such as potassium sulfite or ammonium sulfite is used as a preservative in the developer used for processing the light-sensitive material of the present invention.

Further, hydroxylamine and hydrazide compounds may be used as preservatives. Others: Adjusting pH with a caustic alkali, alkali carbonate, amine, etc. as used in general black and white developers, and providing a buffer function, and inorganic development inhibitors such as bromcali and organic development inhibitors such as benzotriazole, ethylenediaminetetraacetic acid, etc. Metal ion scavenger, development accelerator such as methanol, ethanol, benzyl alcohol, polyalkylene oxide, sodium alkylaryl sulfonate, natural saponin,
It is optional to add a surfactant such as a saccharide or an alkyl ester of the above compound, a hardening agent such as glutaraldehyde, formalin and glyoxal, and an ionic strength adjusting agent such as sodium sulfate.

The developer used in the present invention may contain alkanolamines and glycols as organic solvents.

〔Example〕

Hereinafter, embodiments of the present invention will be described. As a matter of course, the present invention is not limited to the following examples.

Example-1 An exemplary compound represented by the general formula [I] and a comparative compound (the types of which are shown in Table 1 below) were added to a silver halide emulsion layer of a photographic light-sensitive material in the following manner. , A sample was prepared.

[Preparation of silver halide photographic light-sensitive material]

On one undercoat layer of a polyethylene terephthalate film having a thickness of 100 μm and having a undercoat layer of 0.1 μm on both sides, a silver halide emulsion layer of the following formula (1) with a gelatin amount of 1.5 g / m ² , It is coated so that the amount of silver is 3.3 g / m ^2, and a protective layer of the following formulation (2) is further applied on it, and the amount of gelatin is 1.0 g / m ^2.
On the other side of the undercoat layer on the other side according to the following prescription (3)
Sample Nos. 1 to 18 were obtained by coating 3.5 g / m ² and further coating a protective layer of the following formulation (4) so that the amount of gelatin was 1 g / m ² . .

Formulation (1) [Silver Halide Emulsion Layer Composition] Gelatin 1.5 g / m ² Silver chlorobromide (AgCl 60 mol%, AgBr 40 mol%, monodispersity = 1)
2, Rh and Ir contained 10 ^-6 mol / Ag 1 mol) 3.3 g / m ² Antifoggant: 4-hydroxy-6-methyl-1,3,3a, 7-
Tetrazaindene 0.30 g / m ² Compound of the present invention or comparative compound: According to Table-1 Surfactant: Saponin 0.1 g / m ² Latex polymer: Polyethyl acrylate-acrylic acid copolymer 1 g / m ² Sensitizing dye: Structure below Four types of formulas (A) to (D) were used in combination.

Development modifier: nonylphenoxy polyethylene glycol
10 mg / m ² 5-methylbenzotriazole 7 mg / m ² adenine 3 mg / m ² guanine 2 mg / m ² uracil 2 mg / m ² adenosine 2 mg / m ² 1-phenyl-5-mercaptotetrazole 3 mg / m ² hydroquinone 100 mg / m ² Phenidone 10 mg / m ² Gallic acid butyl ester 40 mg / m ² Promethazine hydrochloride 43 mg / m ² Thiaramid hydrochloride 36 mg / m ² n-Butyldiethanolamine 10 mg / m ² Formulation (2) [Emulsion protective layer composition] Gelatin 1.0 g / m ² matting agents, average particle size: 3.0~5.0μm polymethyl methacrylate 0.05 g / m ² surfactant: n-sodium dodecylbenzenesulfonate 0.01 g / m ² charge _{modifiers: C 8 F 17 COONH 4 10mg} / m 2 NaCl 100mg / m ² LiCl 30mg / m ² Hardener: Formalin 0.03g / m ² prescription (3) [Backing layer composition] Gelatin 3.5g / m ² Surfactant: Saponin 0.1 g / m ² Hardener: glyoxal 0.1 g / m ² Formulation (4) [Backing protective layer composition] Gelatin 1 g / m ² Matting agent: Polymethyl Meta cleat having an average particle diameter of 3.0~5.0μm 0.5g / m ² Development modifiers: 5-nitroindazole 0.012 m / g ² 5-methyl-benzotriazole 0.02 g / m ² 1-phenyl-5-mercaptotetrazole 0.005 g / m ² Hardener: Formalin 0.03 g / m ² obtained sample For this, a halftone dot quality test was performed by the following method.

(Dot quality test method) A halftone screen (150 lines / inch) having a halftone dot area of 50% was partially attached to the step wedge, and the sample was brought into close contact with the screen and exposed for 5 seconds with a xenon light source. The sample was developed with the following developer and the following fixer in a rapid processing automatic processor under the following conditions.
Observed with double magnifier, those with high halftone quality were ranked “5”, and the following “4”, “3”, “2”, and “1”
Rank. Note that the ranks “1” and “2” are levels that are not preferable for practical use.

Fog in halftone dots was also evaluated in the same manner. The highest rank was "5" when no black pin was generated in the halftone dot, and rank "4" according to the degree of occurrence of black pin in the halftone dot. ",
"3", "2", "1" and their ranks were sequentially reduced and evaluated. In addition, in the ranks "1" and "2", the black pins are too large, which is not a practically preferable level.

(Developer formulation) (Composition A) Pure water (ion-exchanged water) 150 ml Ethylenediaminetetraacetic acid disodium salt 2 g Diethylene glycol 50 g Phosphoric acid 10 g Potassium sulfite (55% w / v aqueous solution) 100 ml Potassium carbonate 50 g Hydroquinone 15 g 5-Methylbenzotriazole 200mg 1-Phenyl-5-mercaptotetrazole 30mg Potassium hydroxide Amount to adjust the pH of the working solution to 11.5 Sodium bromide 3g (Composition B) Pure water (ion exchanged water) 3ml Diethylene glycol 50g 3-Diethylamino-1,2-propanediol 15g Ethylenediaminetetraacetic acid disodium salt 25mg Acetic acid (90% aqueous solution) 0.3ml 5-Nitroindazole 110mg 2-Mercaptobenzimidazole-5-sodium sulfonate 30mg 1-Phenyl-3-pyrazolidone 500mg N-methyl-p-aminophenol 25mg When using the developer in 500 ml of water Serial composition A, was dissolved in the order of composition B, it was used finish 1.

(Fixing solution formulation) (Composition A) Ammonium thiosulfate (72.5% w / v aqueous solution) 240 ml Sodium sulfite 17 g Sodium acetate trihydrate 6.5 g Boric acid 6 g Sodium citrate dihydrate 2 g Acetic acid (90% w / w aqueous solution) 13.6ml (Composition B) Pure water (ion exchanged water) 17ml Sulfuric acid (50% w / w aqueous solution) 4.7g Aluminum sulphate (Al ₂ O ₃ equivalent content is 8.1% w / w aqueous solution) 26.5g Use of fixer At times, the above composition A and composition B were dissolved in 500 ml of water in this order, and the solution was finished to 1 before use. The pH of the fixing solution was about 4.3.

(Development processing conditions) (Process) (Temperature) (Time) Current image 40 ℃ 15 seconds Settlement 35 ℃ 15 seconds Water wash Normal temperature 20 seconds In addition, it was added to the silver halide emulsion layer in Formula (1). The following compounds (a) to (c) were used as comparative compounds.

(Test Results) Table 1 shows the compounds added to the silver halide emulsion layers and the addition amounts thereof for Samples Nos. 1 to 15 of the present invention and Samples Nos. 16 to 18 prepared using the above-mentioned comparative compounds. Indicated. The compounds of general formula [I] in Table 1 are indicated by the numbers of the exemplified compounds.

Table 2 shows the results of the halftone dot quality test, ranked for each of the above samples.

As is clear from Table 2, regarding the dot quality,
Samples Nos. 1 to 15 according to the present invention all showed a result of rank "4" or more and rank "5" or more, and comparative sample No. 16
All of ~ 18 show results of rank "3".
Considering that ranks "1" and "2" are levels that cannot be put to practical use, it is hard to say that Sample Nos. 16 to 18 have good halftone dot quality, but Sample No. according to the present invention. It was found that all of .1 to 15 had excellent high dot quality and were good.

Also, regarding the occurrence of black pins as an index of fog, Sample Nos. 1 to 15 according to the present invention are all rank "5".
Or, it was evaluated to be "4" and showed an extremely good result without fog, whereas Comparative Samples 16 to 18 were all ranked "2" or less, and it was found that they showed practically unbearable results. .

Example-2 Sample Nos. 19 to 28 are prepared by changing the monodispersity (uniformity of particle size) of silver halide grains to 4 to 40 in Sample No. 2 and Sample No. 4 of Example 1. I did an experiment.

In addition, 8 × 10 ⁻⁷ mol / Ag 1 mol of rhodium and 3 × 10 ⁻⁷ mol / Ag 1 mol of iridium were added according to a conventional method when the particles were prepared. The silver halide composition here is 98 mol% of silver chloride.
Sensitizing dye ((a), (b),
Instead of adding (c) and (d)), a sensitizing dye having the following structure was added.

Desensitizing dye (Polarographic sum of anode potential and cathode potential is positive) Furthermore in the protective layer, the following filter dye 50 mg / m ² was added, Further, the following ultraviolet absorbing dye was added at 100 mg / m ² .

 Others are the same as the above-mentioned sample No.2 and sample No.4.
For example, the same exemplary compound as the compound represented by the general formula [I]
No. 2 and No. 8 were used. Monodispersity is the pH at the time of particle loading.
Electric potential, Ag Ion and halide ion supply amount is changed
By doing so, the conventional control double jet method
Can be prepared.

Further, exposure and development were also carried out in the same manner as in Example-1 to evaluate photographic performance.

However, in this example, the prepared sample was exposed with an energy of 5 mJ using an ultra-high pressure mercury lamp.

The evaluation results are shown in Table-3. Sample No. 19 to No. 28 are good in halftone dot quality 4.4 to 5 and black pin 4.5 to 5,
It was found that the halftone dot quality was high and the fog was extremely small.

[Effects of the Invention] According to the present invention as described above, by incorporating the compound represented by the general formula [I] into the silver halide photographic light-sensitive material, it has the high contrast property of a photographic image and is excellent in the halftone quality It is possible to obtain a photosensitive material.

Claims (1)

(57) [Claims] 1. A silver halide photographic light-sensitive material containing a compound represented by the following general formula [I]. General formula [I] In the formula, R ₁ represents a monovalent substituent capable of substituting on the benzene ring. n represents 0 to 4, and when n is 2 or more, R ₁ may be the same or different. R ₂ represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted carbamoyl group, or a substituted or unsubstituted heterocyclic group. X is a carbonyl group, a sulfonyl group, a sulfoxy group, (R ₃ has the same meaning as R ₂ ), and represents an N-substituted or unsubstituted imino group. Y represents a hydroxyl group, an amino group, a carboxy group, or a mercapto group. Note that a combination of X is a carbonyl group and Y is a hydroxyl group or an amino group substituted with an ethyl group is excluded.