JPS6120026A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain a photosensitive material small in fogging and free from coloring in nondeveloped areas by forming a layer contg. photosensitive silver halide; and metal salt grains more soluble than said silver halide, with their surfaces made hardly soluble with a solubility inhibitor; and a compd. represented by the formula; and substantially not contg. physical development nuclei. CONSTITUTION:The metal salt grains, such as sodium sulfite, is highter in dissolution velocity than photosensitive silver halide in a state of each surface of said grains covered with no solubility inhibitor, and immediately the photosensitive silver halide is substantially not photosensitive. The metal salt grains are covered with the solubility inhibitor on the surfaces to be made hardly soluble. They are solubilized by a reaction product resulting from reduction of the exposed photosensitive silver halide or by the physicochemical reaction of accompanied by said reaction. The solubility inhibitor is selected from compds. capable of being adsorbed with the easily soluble metal salt grains and lowering solubility, such as mercapto type compds. Physical development nuclei made of colloidal particles of metal sulfide are not incorporated therein. The compd. to be added is represented by the formula in which Y is -CO- or -SO2-; R1 is optionally substd. straight or branched alkyl having a total of 1-12C or optionally substd. aryl totaling 6-18C, R2 is optionally substd. straight or branched alkyl totaling 1-5C, and X is H, alkali metal, or ammonium.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a novel photosensitive 44-strip for forming negative images;
More specifically, the present invention relates to a novel photographic material for forming a negative image, which produces a negative image with high sensitivity, high contrast, and the highest degree of sharpness.

(Prior art) Scissors, which are essential for silver halide photographic materials, are one of the natural resources that is at risk of depletion.While the supply is decreasing,17 the demand is increasing17. Attempts to save and quantify silver are being actively rejected.

For example, the silver salt diffusion transfer method using physical development nuclei (A, Rott'E, Wegde, Pho
tographic 5ilver Halide D
iffusion Process (Focal P
reas London 1972). This method has a very high covering power (silver nuclear power) of the transferred image, so it is possible to obtain a photographic image with higher color density using a less dangerous halogenated iron, and it also has excellent sharpness, so it is extremely popular. It is known as an image forming method.

However, even though the above method is a negative-positive diffusion transfer method, the final image obtained is a positive image, so it is not suitable for the purpose of the present invention of forming a negative image.

On the other hand, according to JP-A No. 54-48544, as a photosensitive material for finally obtaining a negative image by a silver salt diffusion transfer method, (1) photosensitive silver halide, (2) ) Particles of a metal salt, the metal salt containing (1) highly soluble and full-area salt particles whose surfaces have been made difficult to solubilize with an agent that makes them difficult to solubilize, and (3) physical development nuclei. ! - has been proposed.

This photosensitive printing material contains a silver halide reducing agent (e.g. developing herbal medicine) and a metal salt solvent (e.g. sulfite, thioester C salt, thiocyanate, etc.) to obtain a negative image. This invention relates to photographic materials that are processed with a developer.

When an image is formed using a thermophotonic I material such as C, there are disadvantages such as coloring in undeveloped areas and fogging in unexposed areas. The present inventors have discovered that when an opaque support such as Enoki paper is used, these defects, particularly coloring, become more noticeable and become a practical problem.

In addition, in the above photographic material, Photo i [! There is a drawback that the color tone of the Il image is reddish.

(Problems to be Solved by the Invention) Therefore, an object of the present invention is to improve the above-mentioned drawbacks. That is, the first object of the present invention is to provide a silver halogenide photographic material in which less fog occurs in unexposed areas during development, and the second object is to provide a silver halogenide photographic material that causes less fogging in unexposed areas during development. An object of the present invention is to provide a silver halide photographic material free from coloring. Furthermore, the third objective is to create a chain-reduced silver halogenide photographic light-sensitive material that can produce negative images with high contrast, high maximum 11 degrees, and neutral tone with a smaller amount of coated silver than conventional methods. It is about providing.

(Means for Solving the Problems) The present inventors have conducted intensive research to achieve the above object. ) Particles of a metal salt that is more easily soluble than the photosensitive silver halide and whose surface has been made difficult to solubilize with an insoluble agent; and (3) physical development nuclei containing at least one compound represented by the following general formula. It has been found that this can be achieved by using a silver halide photographic light-sensitive material coated with a layer substantially containing no.

In the formula, Y represents -CO- or -8O2-, and R1 may have a substituent, and has 1 to 1 carbon atoms including the substituent.
12 linear or branched alkyl groups may have a substituent, represent an aryl group having 6 to 18 carbon atoms including substituents, and R2 may have a substituent, It represents a straight chain or branched alkyl group having 1 to 5 carbon atoms including substituents, and X represents a hydrogen atom, an alkali metal atom, or an ammonium group.

The alkyl group represented by R+ above is, for example, a methyl group,
Ethyl group, propyl group, t-butyl group, etc., and substituents include lower alkyl groups (e.g. methyl group, ethyl group, propyl group, etc.), C00Rs, -8O3R3 (here R3 is methyl group, ethyl group, As an aryl group represented by 0 or R1, which can contain a lower alkyl group or an alkali metal ion), -0R4 (where R4 is a lower alkyl group such as a methyl group or an ethyl group), etc. For example, there is a phenyl group, and the substituent is -COO
H,, -C00Rs, OR< (where R3 and R
4 is the same group as in the case of the substituent of the alkyl group).

Furthermore, the alkyl group represented by R2 is, for example, a methyl group, ethyl group, propyl group, t-butyl group, etc., and the substituents include the same groups as those for the alkyl group represented by R1 above. can.

Examples of the alkali metal atom represented by X include sodium atom and potassium atom.

Next, typical examples of the compound represented by the above general formula used in the present invention will be described, but the present invention is not limited to these compounds.

(Exemplary compounds) NHCOCH2CH2COOC21 (6) These compounds that can be used in the present invention are listed in Japanese Patent Publication No. 46-1
It can be easily synthesized according to the method disclosed in Japanese Patent No. 4433.

Next, the photosensitive silver halide according to the present invention will be described. Examples of the photosensitive silver halide used in the present invention include silver chloride, silver bromide, silver chlorobromide, silver chloroiodide, and silver chloroiodobromide. Alternatively, mixtures of these may be included, but it is preferable to use silver chloroiodide, silver iodobromide, and silver chloroiodobromide containing silver iodide, particularly containing 50 molt or less of silver iodide. Silver iodochloride,
Silver iodobromide and silver chloroiodobromide are preferred in the present invention.

The photosensitive silver halide-containing photographic emulsion used in the present invention can be manufactured by various manufacturing methods including the usual manufacturing method, for example, the method described in Japanese Patent Publication No. 46-7772, or the method described in U.S. Pat. It is prepared by the so-called conversion emulsion method described in No. 2,592,250, such as the single jet method and the double jet emulsion method.

Further, the silver halide grains used in the present invention have various crystal habits, for example, those having a so-called octahedral structure having a (111) plane, or those having a cubic structure having a (100) plane, or Japanese Patent Publication No. 48-5423
Known silver halides having a (110) plane as described in the above publication are included.

sulfur sensitizers such as sulfur, thiourea, sodium thiosulfate, etc., for example, Japanese Patent Publication No. 15748/1983, U.S. Patent No. 1,
Active or inactive selenium sensitizers, such as gold compounds, as described in No. 623,4.99;
Chemical sensitization can be carried out using sensitizers such as noble metal sensitizers such as palladium compounds, platinium compounds, and iridium compounds, alone or in combination.

In addition to the chemical sensitizers mentioned above, the silver halide emulsion can also be reduced-sensitized using a reducing agent, and may also be sensitized with a thioether-type, quaternary ammonium-type, or polyalkylene oxide-type sensitizing compound. It can also be added to the emulsion.

Further, the silver halide emulsion used in the present invention may be spectrally sensitized using a sensitizing dye to impart photosensitivity to a desired spectral region. Useful sensitizing dyes include, for example,
No. 5-24910, No. 45-29878, No. 47-2
No. 5378, No. 47-33766, No. 48-1064
No. 4, No. 48-42494, No. 49-12653,
No. 49-13570, JP-A No. 47-4474, No. 4
No. 8-17321, No. 48-73136, No. 48-8
No. 9772, No. 49-5615, U.S. Patent No. 1,
No. 846,301, No. 1゜846.302, No. 1
, No. 942,854, No. 1,990,507, No. 2,112,140, No. 2,493,747, No. 2,739°964, No. 2,493,748 ,
No. 2,503,776, No. 2,519,001, No. 2,666.761, No. 2,734.900
No. 2,739,149%, No. 2,930.69
No. 4, No. 3,186,840, No. 3,314,7
No. 96, No. 3,364,026, No. 3,537,
No. 858, No. 3,681,674, British Patent No. 49
No. 0,958, No. 970,601, No. 1,155
, No. 404, No. 1,209,042, No. 1,24
No. 2,074.

Furthermore, the silver rhodanide emulsion used in the present invention includes, for example, triazoles, imidazoles, azaindenes,
It can be stabilized with benzothiazolium compounds, zinc compounds, cadmium compounds, mercaptans, or mixtures thereof. In the present invention, among the above-mentioned silver rodanide emulsions, a desired composition can be selected depending on the intended use and the condition of the low-light-sensitive photographic element.

Next, regarding the metal salt particles used in the present invention, the metal salt particles according to the present invention are sulfurous when the surface is not coated with the refractory agent) IJ
thiosulfates such as sodium thiosulfate, potassium thiosulfate, and ammonium thiosulfate; cyanates such as potassium cyanide and sodium cyanide; thiocyanates such as sodium thiocyanide and potassium rhodan; amino acids such as cystine and cysteine. elementary compound, thiourea,
The dissolution rate for substances that dissolve metal salt particles such as phenylthiourea, 3,6-di-thea-1,5-octadiol, thiobase compounds, and thioether compounds is higher than that of the above-mentioned photosensitive material. It is also large and consists of metal salts that are not photosensitive. In this case, "substantially not having photosensitivity" in the present invention means "non-photosensitivity" in relation to the above-mentioned photosensitivity) and silver rhodanide, and specifically is to be understood as ``substantially not sensitized'' depending on the light energy when the original energy necessary to sensitize the photosensitive silver halide is applied to the photographic light-sensitive material of the present invention. More specifically, the metal salt particles of the present invention are fine particles of a metal salt that have a sensitivity of approximately 1-light or less relative to the photosensitive silver rhodanide.

The metal salt particles used in the present invention may be appropriately selected from those having the above-mentioned properties.

In a preferred embodiment of the present invention, the metal salt particles according to the present invention are silver halide grains having substantially no photosensitivity, and are more soluble in silver halide grains than the photosensitive silver halide grains. Particles are selected that have a high dissolution rate for the substance to be used. Specifically, it is preferable to use pure silver bromide, pure silver chloride, or a mixture of these, which has not been subjected to chemical sensitization treatment. .

The metal salt particles used in the present invention are used in an amount of 0.1 to 100 moles per mole of photosensitive silver halide.

The surfaces of the metal salt particles are bonded with a refractory agent, and the thus obtained particles whose surfaces are rendered refractory are reaction products produced when exposed photosensitive silver halide is reduced, or It becomes soluble due to the physicochemical action accompanying the reaction, so the metal salt particles are dissolved as described above.
In the presence of the substance, metal salt particles are dissolved in the exposed areas, producing metal-14= ions or metal complex ions.

The ions thus generated are reduced to metal in the presence of a reducing agent on the metallic silver formed by imagewise development of the photosensitive silver halide.

The surface of the metal salt particles used in the present invention is coated with a refractory agent, and the refractory agent is adsorbed onto the surface of the metal salt particles, or a portion of the particle surface becomes an active site for a dissolution reaction. According to a preferred embodiment of the present invention, the refractory agent is a compound that slows down the solubility of easily soluble metal salt particles by adsorbing to them, and reduces the solubility of the metal salt particles. selected from compounds that cause These compounds are, for example, mercapto compounds, specifically cysteine, 1-7enyl-5-mercaptotetrazole, mercaptobenzthiazole, mercaptobenzselenazole, mercaptobenzoxazole, mercaptobenzimidazole, benzyl mercaptan. , 4-ethyl-2-thio-oxazoline, 2-mercapto-6-azauracil, 4-hydroxy-2-mercapto-6-methyl-pyrimidine, 3-mercapto-
Examples include 4-phenyl-5-methyl-1,2,4-1 riazole. Thiourea and indazole can also be used in the present invention, but among these, mercaptotetrazole compounds are particularly preferred.

Furthermore, the photographic material of the present invention is characterized by having a layer containing at least one compound represented by the above general formula in addition to the various constituent elements described above. The compound according to the present invention is generally used by being added to a layer adjacent to a photosensitive layer such as a photosensitive layer or a protective layer of a photographic light-sensitive material. Although it is not possible to precisely define the layer to be added as the layer to be added differs significantly depending on various conditions such as, the compound according to the present invention is generally added to the photosensitive layer or a layer adjacent to the photosensitive layer per mole of silver halide. 0
It may be added in a range of X10 to 5.0X10 moles, preferably in a range of 5.0X10 to 1.0 moles and 0-2 moles.

The characteristics of the present invention are as follows:
The negative-working silver halide light-sensitive material described in Japanese Patent No. 4628 has (1) a photosensitive silver halide emulsion, (2) the surface of which is made difficult to solubilize by the above-mentioned refractory agent, and itself contains the above-mentioned photosensitive halide emulsion. Metal salt particles that are easily soluble in silver particles and have substantially no photosensitivity; and (3) metal colloid particles such as gold, silver, and platinum, or gold MW such as silver and palladium.
In contrast, the photographic light-sensitive material of the present invention contains only the above-mentioned composition without containing the above-mentioned physical development nuclei. In addition, it is possible to obtain photographic images with high contrast, high maximum polishing quality, and neutral color tone with a small amount of coated silver.

According to the present invention, the compound according to the present invention may be added directly to the photographic emulsion by dispersing it in water or methanol,
It may also be added to emulsions or other layers as a solution in an organic solvent such as ethylene glycol.

Typical embodiments of the present invention will be described below, but the present invention is not limited to various embodiments as it can be implemented in various ways depending on the purpose or use.

(1) (i) High-sensitivity silver halide, (ii) A substantially non-photosensitive metal salt made difficult to dissolve (for example, fine-grained silver chloride), (i: Q of a compound represented by the above general formula) 3
A silver halide photographic light-sensitive material, which contains a silver halide compound in the same layer and coats it on a support.

(II) A layer containing (ii) a hardly soluble metal salt having substantially no photosensitivity and (iii) a compound represented by the general formula is coated on a support, and further on this layer. (1) A silver halide photographic light-sensitive phase material comprising a high-sensitivity silver halide emulsion layer coated adjacently.

[1 [1] (ii) A layer containing a substantially non-photosensitive metal salt that has been rendered insoluble is coated on a support, and adjacent to this layer, (1) a highly sensitive silver halide is coated. , and (iii
) A halogenated button photographic sensitive group I coated with a =18- layer containing a compound represented by the general formula.

The photographic light-sensitive material of the present invention having the above-mentioned structure can contain various additives in addition to the above-mentioned additives.

In the present invention, the above-mentioned (1) highly sensitive silver halide,
(ii) The elutriated Kanata salt, which has substantially no photosensitivity, can be present either alone or in a mixture with 21ilt and dispersed in a suitable binder. Colloids are used, typically gelatin is advantageously applied.

Further, hydrophilic colloids other than gelatin that can be advantageously used in the present invention include derivative gelatin, colloidal albumin, agar, gum arabic, alginic acid, cellulose derivatives, polyacrylamide, imidized polyacrylamide, casein, and t is vinyl alcohol. Examples include vinyl alcohol polymers having urethane carboxylic acid groups such as rubinyl cyanoacetate copolymer, or cyanoacetyl groups, polyvinyl alcohol, polyvinylpyrrolidone protein, and the like.

In the present invention, for the purpose of improving the physical properties of the coating film made of the hydrophilic colloid, various film property improvers such as hardeners, plasticizers, surfactants, pH regulators,
Antioxidants, antistatic agents, thickeners, capping agents, and the like can be used within the range that does not impair the effects of the invention.

Supports used in the present invention include, for example, baryta paper, polyethylene liquid seed paper, polypropylene synthetic paper, glass plates, cellulose acetate, cellulose nitrate, polyester films such as polyethylene prephthalate, polyamide films, polypropylene films, Typical examples include polycarbonate film, polystyrene film, etc., and these supports are appropriately selected depending on the intended use of the photographic photosensitive material.

After exposure, the photographic light-sensitive material of the present invention comprising the above-described components is developed in a developer that does not contain a silver halide solvent. can be used. For example, hydroquinone, 4-N-methylaminophenol (methol)
, ascorbic acid, inascorbic acid, 2,6-dimethyl-4-aminephenol, toluhydroquinone,
46-dimethylhydrquinone, 2-methyl-4-amino-6-medoxyphenol, 2,6-simethoxy 4
-Aminephenol, 2,5-dimethylhydroquinone, 2,4,6-triaminophenol, a4-diaminophenol (amitor), NlN-diethyl-hydroxylamine, 4,6-diamitio-cresol, 1-phenyl- Examples include 3-pyrazolidone.

Furthermore, as alkaline agents, for example, inorganic alkaline agents such as caustic soda and soda carbonate, as well as organic alkaline agents such as diethylamine, can be added to the developer. In addition, various additives such as development inhibitors, color toning agents, curing agents, and development accelerators, which are commonly used in developing solutions, may be added as necessary. In particular, as the development inhibitor, derivatives such as imidazole, indazole, and triazole, which are not described in JP-A-56-36644, are preferable.

As described in detail above, according to the present invention, (1) a highly sensitive silver halide, (ii) the photosensitive silver halide is easily soluble, and the surface thereof is made difficult to dissolve with a difficult-to-solubilize agent. Metal salt particles (iii) The photographic photosensitive material of the present invention which contains at least 1a+ of the compound represented by the above general formula and does not use physical development nuclei can be used in conventionally used methol/hydroquinone-based developers and phenidone/hydroquinone-based developers. In a short-time development process using a developer, it has become possible to obtain a negative image with a high maximum density, high contrast, and neutral tone with a small amount of silver.

The photographic material of the present invention will be described in more detail with reference to Examples below, but the present invention is not limited thereto.

Example 1 (1) Preparation of high-sensitivity silver halide emulsion By a normal neutral method, the halogen composition was changed to chlorine by using silver nitrate, sodium chloride, potassium bromide, and potassium iodide in a gelatin solution. A silver chloroiodobromide emulsion containing 13 moles of bromine, 86 moles of bromine, and 1 mole of iodine was prepared, and after performing a second ripening by rapid yellow sensitization, 4-hydroxy-6-methyl-1, 4-hydroxy-6-methyl-1, 3,3a +
7-chitrazaindene in 1 mol i of silver halide, 90.
3r was added to prepare a highly sensitive silver chloroiodobromide emulsion.

(2) Preparation of a silver halide emulsion with virtually no sensitivity A pure silver chloride emulsion consisting of silver nitrate and sodium chloride is prepared by a normal neutral method, desalted by a precipitation method, washed with water, and then
1-phenyl-5-mercaptotetrazole to silver chloride 1
It was prepared by adding a molar ratio of 1.12. The average grain size of the silver chloride crystals was 01 μm.

(3) Preparation of physical development nuclei Silver nitrate was reduced with dextrin in an alkaline aqueous solution by a conventional method to produce a silver colloid and used as physical development nuclei.

An appropriate amount of saponin was added as a coating aid to the high-sensitivity silver chloroiodobromide emulsion prepared above, so that the coating layer 61 was 4.0P/
A sample was prepared by coating it on a polyethylene terephthalate film support which had been subjected to undercoating so as to have the following properties: Comparative Sample-1. Also, apply Nihi's coating liquid at 1.5 f/r.
r? A sample coated on baryta paper so as to have the following properties was designated as Comparative Sample-3.

The high-sensitivity silver chloroiodobromide emulsion, fine-grain silver chloride emulsion, and physical development nuclei described above are mixed, an appropriate amount of saponin is added as a coating aid, and the high-sensitivity salt is deposited on a polyethylene terephthalate film support that has been subbed. With a silver iodobromide emulsion, 1. FM
A sample was prepared by applying fine-grain silver chloride '11 at a ratio of 1.5 r/door physical development nucleus to 20/-, and designated as comparative sample 2. 1. Baryta paper, 2. High sensitivity silver chloroiodobromide emulsion 0.49/m', fine grain silver chloride emulsion 0.4? /m
Comparative Sample 4 was prepared by coating the sample so that the physical state image nucleus was 15η/rr?.

The coating amount of gelatin in the photosensitive emulsion layer of each sample was 3.59/m"
Met.

Next, an increased amount of formalin was added as a protective layer on each of the above coating layers, and sabonin comparison sample (4) was added as a coating aid.
It was also found that there is a strong tendency for the color to be red.

(Example 2) A high-sensitivity silver chloroiodobromide emulsion and a fine grain silver chloride emulsion prepared by the method described in Example 1, an appropriate amount of saponin as a coating aid, and the following Table 2 Sample No. 7 is a sample in which the emulsion containing the compound according to the present invention described in 1.
~12.

Sample NQ5 is a sample in which an emulsion consisting only of a high-sensitivity silver chloroiodobromide emulsion is coated on a subbed polyethylene terephthalate support, and a sample consisting of a high-sensitivity silver chloroiodobromide and silver chloride emulsion without the addition of the compound of the present invention is used. Sample No. 6 was prepared by coating an emulsion of the following formula onto a subbed polyethylene terephthalate support.

At this time, Samples 1@7 to 12 and Comparative Sample 6 were coated so that the high-sensitivity silver chloroiodobromide was 2.5 f/m'' and the fine grain silver chloride was 1.5 f/d. The amount of gelatin was 3.5 f/d.Comparative sample No. 5 was coated to form a high-sensitivity silver chloroiodobromide emulsion 42/R.

Next, apply an appropriate amount of formalin as a protective layer on top of this layer.
and 3.5% with an appropriate amount of saponin added as a coating aid.
Each sample was prepared by applying multiple layers of gelatin aqueous solution.

After each sample was imagewise exposed, it was developed at 38° C. for 30 seconds with a developer having the following formulation. Next, it was fixed, washed with water, dried, and the density was measured. The results are shown in Table 2 below.

(Developer) Table 2] As is clear from the results shown in the above table, by adding the compound of the present invention to the light-sensitive emulsion layer, the comparative sample - (5
) and (6), it was found that high contrast photographic images with high maximum blackening density and low fog can be obtained with a smaller amount of coated silver.

Furthermore, it was found that the color tone of the image was 211 toral and the color tone of the unexposed area was also good even when compared with Comparative Sample-(3) of Example-1.

(Example 3) The halogen composition was determined using silver nitrate, potassium bromide, and potassium iodide in an aqueous gelatin solution by a normal neutral method.
Silver iodobromide emulsions with 98 molts of beauty and 2 molts of iodine were prepared, and after second ripening by sulfur sensitization, 4-hydroxy-6-methyl-1 was added as a stabilizer.
,3,3a, ? - Tetrazaindene to 1 silver halide
A highly sensitive silver iodobromide emulsion was prepared by adding 0.3 F per mole.

The above-mentioned high-sensitivity silver iodobromide emulsion, a fine-grain silver chloride emulsion prepared in the same manner as in Example 1, and made hardly soluble by adding 0.62 1-phenyl-5-mercaptotetrazole per mole of the silver chloride emulsion; A sample was prepared by adding an appropriate amount of saponin as a coating aid and further adding the compound according to the present invention as shown in Table 3 below on baryta paper.
Samples of the present invention were designated as N [L15 to 19.

In addition, a sample was prepared by applying an emulsion consisting only of a high-sensitivity silver iodobromide emulsion to baryta paper, and the sample was designated as comparative sample Nα13.

Furthermore, a sample was prepared by coating baryta paper with an emulsion consisting of a high-sensitivity silver iodobromide emulsion and a silver chloride emulsion to which the compound of the present invention was not added, and was designated as comparative sample N1114.

At this time, sample height 15 to Na19 and comparative sample Na1
Regarding 4, high-sensitivity silver iodobromide o, 7y/n? , fine-grain silver chloride was coated at a density of 0.5 f/-. Furthermore, the amount of gelatin was 3.5 fI/rn'. For comparison sample height 13, high-sensitivity silver iodobromide emulsion 1.5? /
rr? It was applied so that it looked like this.

Next, on the coating layer of each sample, an appropriate amount of formalin was added as a holding layer, and an appropriate amount of saponin was added as a coating aid.
Each sample was prepared by applying a 5% aqueous gelatin solution in multiple layers. After each sample was imagewise exposed, it was developed in a developer with the following formulation at 38°C for 30 seconds. Next, it was fixed, washed with water, and dried. Concentration measurements were taken. The results are shown in Table 3 below.

(Developer) Diethine glycol 402 Sodium sulfite 501 Sodium hydroxide 1011-phenyl-3
-Pyrazolidone II Hydroquinone
251 Sodium carbonate monohydrate 201 Potassium bromide
311-Phenyl-5-mercaptotetrazole Table 3 As is clear from the results shown in the above table, by adding the compound of the present invention to the light-sensitive emulsion layer, less coating was achieved compared to Comparative Samples 13 and 14. It was found that a high maximum density, a low capri, and a high-contrast image could be obtained depending on the amount of silver.

Further, even when compared with Comparative Sample N13 of Example-1, a good image with a 211 toral color tone and no coloring due to nuclei in the unexposed areas was obtained.

(Effect of the invention) A silver halide photographic light-sensitive material in which a layer containing photosensitive silver halide, metal salt particles having substantially no photosensitivity, and a compound represented by the above general formula is coated requires less coating. With the highest amount of silver, it is possible to obtain a neutral-toned shade image with high specularity and contrast, and low brightness and capri.

Furthermore, the effects of the present invention are such that, in the present invention, the coloring and capri caused by the physical development nuclei are reduced due to the substantial use of the physical development nuclei; This is presumed to be due to the fact that physical development is promoted even in the absence of physical development nuclei by using the compound.

Claims (1)

[Scope of Claims] Particles of (1) photosensitive silver halide, (2) a metal salt which is more easily soluble than the photosensitive silver halide and whose surface has been made difficult to solubilize with a refractory agent on a support. and (3) a silver halide photographic light-sensitive material comprising a coated layer containing at least one compound represented by the following general formula and substantially free of physical development nuclei. General formula▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, Y represents -CO- or -SO_2-, R
_1 is a linear or branched alkyl group having 1 to 12 carbon atoms including substituents, which may have a substituent, or a straight chain or branched alkyl group having 6 carbon atoms including substituents, which may have a substituent ~18
represents an aryl group, and R_2 represents a linear or branched alkyl group having 1 to 5 carbon atoms including substituents, which may have a substituent, and X represents a hydrogen atom, an alkali metal atom, or an ammonium atom. represents a group. )