JPH04362629A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To provide a silver halide photographic sensitive material having high sensitivity, little fog, improved pressure characteristics and shelf stability. CONSTITUTION:This silver halide photographic sensitive material has at least one silver halide emulsion layer sensitized with selenium and contg. at least one kind of pyrazolylpyrimidine on the base.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a silver halide photographic light-sensitive material, and more specifically, it has high sensitivity, low fog, improved pressure characteristics and storage stability, and particularly has high spectral sensitization efficiency. This invention relates to a silver halide photographic material with high graininess and excellent graininess.

0002

BACKGROUND OF THE INVENTION The basic properties required of silver halide emulsions for photography are high sensitivity, low fog, and fine grain.

[0003] Therefore, gold sensitization, sulfur sensitization, and selenium sensitization have been developed as chemical sensitization methods to achieve high sensitivity of silver halide emulsions, and these methods have been made more useful. Research for this purpose is still ongoing. Among these, the gold sensitization method and the sulfur sensitization method are currently common sense sensitization methods among those skilled in the art and have many practical examples.

However, among the above selenium sensitization methods, for example, US Pat.
No. 2, No. 1,623,499, etc., and has been known for a long time. Although this method can achieve high sensitivity, it can only be used in very limited cases due to the disadvantage that it is accompanied by fogging. could only be used.

Various attempts have been made to reduce this fog. For example, U.S. Patent No. 3,297,
No. 447 describes an improvement by adding an unstable sulfur compound, and JP-A-59-180536 discloses the use of a silver halide solvent.
JP-A-59-192241 uses a monodisperse emulsion, and JP-A-59-185329 uses a monodisperse emulsion sensitized with selenium and sulfur in the presence of a nitrogen-containing heterocyclic compound capable of forming a complex with silver. An emulsion is disclosed.

[0006] These inventions are more or less effective;
Although this invention is useful in its own way, it is insufficiently effective in suppressing fog caused by selenium sensitization, especially fog when pressure is applied to the photosensitive material (so-called pressure fog), and increase in fog that occurs during storage of the photosensitive material. Ta.

Furthermore, the selenium sensitization and sulfur sensitization in the presence of a nitrogen-containing heterocyclic compound capable of forming a complex with silver, disclosed in JP-A-59-185329, was a relatively useful invention. This is probably because it inhibits the adsorption of sensitizing dyes, but it has the disadvantage that the sensitizing effect of spectrally sensitized emulsions is reduced.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a halogen compound that has high sensitivity, less fog, improved pressure characteristics and storage stability, and particularly has high spectral sensitization efficiency and excellent graininess. The purpose of the present invention is to provide a silver oxide color photographic material.

[0009]

[Means for Solving the Problems] As a result of extensive research, the present inventors have discovered that the above objects can be achieved by the following means.

(1) A silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support that has been selenium-sensitized and contains at least one pyrazolylpyrimidine.

(2) The silver halide photographic light-sensitive material according to (1), characterized in that the silver halide emulsion is chemically sensitized in the presence of at least one of the pyrazolylpyrimidines.

(3) The silver halide according to (2), characterized in that the silver halide emulsion is chemically sensitized in the presence of at least one sensitizing dye and at least one of the pyrazolylpyrimidines. Photographic material.

(4) The silver halide photograph according to any one of (1) to (3), characterized in that the silver halide emulsion is subjected to a combination of sulfur sensitization and selenium sensitization. photosensitive material.

(5) The silver halide emulsion is characterized in that it has monodisperse silver halide grains (1) to (4).
) The silver halide photographic material according to any one of the above.

(6) The silver halide emulsion is such that at least 50% of the total projected area of the silver halide grains is occupied by tabular silver halide grains, and the average of the tabular silver halide grains occupying the 50% is The silver halide photographic material according to any one of (1) to (4), which has an aspect ratio of 3.0 or more.

The present invention will be explained in more detail below.

First, selenium sensitization used in the present invention will be explained.

As the selenium sensitizer used in the present invention, selenium compounds disclosed in conventionally known patents can be used. Typically, unstable selenium compounds and/or
Alternatively, a non-unstable selenium compound can be used by adding it and stirring the emulsion at a high temperature, preferably 40° C. or higher, for a certain period of time. As unstable selenium compounds, Japanese Patent Publication No. 44-15748, Japanese Patent Publication No. 43-13489,
It is preferable to use compounds described in Japanese Patent Application No. 2-130976, Japanese Patent Application No. 2-229300, and the like.

Specific examples of unstable selenium sensitizers include isoselenocyanates (for example, aliphatic isoselenocyanates such as allyl isoselenocyanate), selenoureas, selenoketones, selenamides, and selenocarboxylic acids ( For example, 2-selenopropionic acid, 2-
Examples include selenobutyric acid), selenoesters, diacylselenides (eg, bis(3-chloro-2,6-dimethoxybenzoyl)selenide), selenophosphates, phosphine selenides, and colloidal metal selenium.

Although preferred types of unstable selenium compounds have been described above, these are not intended to be limiting. Speaking of unstable selenium compounds as sensitizers for photographic emulsions, the structure of the compound is not very important as long as selenium is unstable, and the organic part of the selenium sensitizer molecule supports selenium. It is generally understood by those skilled in the art that it has no role other than to allow it to be present in the emulsion in an unstable form. In the present invention, unstable selenium compounds having such a broad concept are advantageously used.

[0021] As the non-unstable selenium compound used in the present invention, Japanese Patent Publication No. 46-4553, Japanese Patent Publication No. 52-3
Compounds described in No. 4492 and Japanese Patent Publication No. 52-34491 are used. As non-unstable selenium compounds,
For example, selenite, potassium selenocyanide, selenazole compounds, quaternary salts of selenazole compounds, diaryl selenide, diaryl diselenide, dialkyl selenide, dialkyl diselenide, 2-selenazolidinedione, 2-selenoxazolidinethione, and these. Examples include derivatives of

Among these selenium compounds, the following general formulas (I) and (II) are preferred.

General formula (I)

[0024]

embedded image In the formula, Z1 and Z2 may be the same or different, and each represents an alkyl group (for example, methyl, ethyl, t
-butyl, adamantyl, t-octyl), alkenyl groups (e.g. vinyl, propenyl), aralkyl groups (e.g. benzyl, phenethyl), aryl groups (e.g.
phenyl, pentafluorophenyl, 4-chlorophenyl, 3-nitrophenyl, 4-octylsulfamoylphenyl, α-naphthyl), heterocyclic group (e.g. pyridyl, thienyl, furyl, imidazolyl), -NR1
(R2), -OR3 or -SR4.

R1, R2, R3 and R4 may each be the same or different and represent an alkyl group, an aralkyl group, an aryl group or a heterocyclic group. Examples of the alkyl group, aralkyl group, aryl group or heterocyclic group include the same examples as Z1. However, R1 and R2 are hydrogen atoms or acyl groups (e.g., acetyl, propanoyl, benzoyl, heptafluorobutanoyl, difluoroacetyl, 4-nitrobenzoyl, α
-naphthoyl, 4-trifluoromethylbenzoyl).

In the general formula (I), preferably Z1 represents an alkyl group, an aryl group or -NR1 (R2), and Z2 represents -NR5 (R6). R1, R
2 , R5 and R6 may be the same or different, and each represents a hydrogen atom, an alkyl group, an aryl group, or an acyl group.

[0027] General formula (I) more preferably has N, N
-Dialkylselenourea, N,N,N'-trialkyl-N'-acylselenourea, tetraalkylselenourea, N,N-dialkyl-arylselenoamide, N-alkyl-N-aryl-arylselenoamide.

General formula (II)

[0029]

embedded image In the formula, Z3, Z4 and Z5 may be the same or different, and represent an aliphatic group, an aromatic group, a heterocyclic group, -
OR7, -NR8 (R9), -SR10, -Se
R11, X represents a hydrogen atom.

R7, R10 and R11 are aliphatic groups,
Represents an aromatic group, a heterocyclic group, a hydrogen atom or a cation,
R8 and R9 represent an aliphatic group, an aromatic group, a heterocyclic group or a hydrogen atom, and X represents a halogen atom.

In the general formula (II), Z3, Z4
, Z5 , R7 , R8 , R9 , R10 and R1
The aliphatic group represented by 1 is a linear, branched or cyclic alkyl group, alkenyl group, alkynyl group, aralkyl group (for example, methyl, ethyl, n-propyl, isopropyl,
t-butyl, n-butyl, n-octyl, n-decyl,
n-hexadecyl, cyclopentyl, cyclohexyl,
allyl, 2-butenyl, 3-pentenyl, propargyl, 3-pentynyl, benzyl, phenethyl).

In the general formula (II), Z3, Z4
, Z5 , R7 , R8 , R9 , R10 and R1
The aromatic group represented by 1 is a monocyclic or condensed aryl group (e.g., phenyl, pentafluorophenyl, 4-chlorophenyl, 3-sulfophenyl, α-naphthyl, 4
-methylphenyl).

In the general formula (II), Z3, Z4
, Z5 , R7 , R8 , R9 , R10 and R1
The heterocyclic group represented by 1 is a 3- to 10-membered saturated or unsaturated heterocyclic group containing at least one of a nitrogen atom, an oxygen atom, or a sulfur atom (e.g., pyridyl, thienyl, furyl, thiazolyl). , imidazolyl, benzimidazolyl).

In general formula (II), R7, R10
The cation represented by and R11 represents an alkali metal atom or ammonium. Further, the halogen atom represented by X represents, for example, a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom.

In general formula (II), preferably Z
3, Z4 or Z5 is an aliphatic group, aromatic group or -
represents OR7, and R7 represents an aliphatic group or an aromatic group.

The general formula (II) more preferably represents trialkylphosphine selenide, triarylphosphine selenide, trialkylselenophosphate or triarylselenophosphate.

Specific examples of compounds represented by formulas (I) and (II) are shown below, but the present invention is not limited thereto.

[0038]

[Chemical formula 3]

[0039]

[C4]

[0040]

[C5]

[0041]

[C6]

[0042]

[C7]

[0043]

[Chemical formula 8]

[0044]

embedded image These selenium sensitizers are dissolved in water or an organic solvent such as methanol or ethanol alone or in a mixed solvent and added at the time of chemical sensitization. Preferably, it is added before starting chemical sensitization. The selenium sensitizer used is not limited to one type, and two or more of the above selenium sensitizers can be used in combination. The combination of unstable selenium compounds and non-labile selenium compounds is preferred.

The amount of selenium sensitizer used in the present invention varies depending on the activity of the selenium sensitizer used, the type and size of silver halide, the temperature and time of ripening, etc.
Preferably, the amount is 1×10 −8 mol or more per mol of silver halide. More preferably, it is 1 x 10-7 mol or more and 5 x 10-5 mol or less. The temperature for chemical ripening when a selenium sensitizer is used is preferably 45° C. or higher. More preferably 50°C or higher and 80°C
It is as follows. pAg and pH are arbitrary. For example p
Regarding H, the effects of the present invention can be obtained in a wide range from 4 to 9.

Selenium sensitization can be more effectively achieved by carrying out it in the presence of a silver halide solvent.

Examples of silver halide solvents that can be used in the present invention include US Pat. No. 3,271,157, US Pat. No. 3,531,289, and US Pat.
(a) Organic thioethers described in JP-A-54-1019 and JP-A-54-158917, such as JP-A-53-82408, JP-A-55-77737, and JP-A-55-
(b) thiourea derivatives described in JP-A-53-144319; (c) silver halide solvents having a thiocarbonyl group sandwiched between an oxygen or sulfur atom and a nitrogen atom; (d) imidazoles, (e) sulfites, (
f) Thiocyanate.

Particularly preferred silver halide solvents include:
These include thiocyanate and tetramethylthiourea. Further, the amount of the solvent used varies depending on the type, but for example, in the case of thiocyanate, the preferable amount is 1 x 10-4 mol or more per 1 mol of silver halide, and 1 x 10
−2 moles or less.

The emulsion of the present invention is preferably chemically sensitized by a combination of sulfur sensitization and gold sensitization.

Sulfur sensitization is usually carried out by adding a sulfur sensitizer and stirring the emulsion at a high temperature, preferably 40° C. or higher, for a certain period of time.

Gold sensitization is usually carried out by adding a gold sensitizer and stirring the emulsion at a high temperature, preferably 40° C. or higher, for a certain period of time.

For the above-mentioned sulfur sensitization, known sulfur sensitizers can be used. Examples include thiosulfate, allylthiocarbamide thiourea, allyl isothiacyanate, cystine, p-toluenethiosulfonate, and rhodanine. Others, such as U.S. Patent No. 1,57
No. 4,944, No. 2,410,689, No. 2,2
No. 78,947, No. 2,728,668, No. 3,
Sulfur sensitizers described in German Patent No. 501,313, German Patent No. 3,656,955, German Patent No. 1,422,869, Japanese Patent Publication No. 56-24937, and Japanese Patent Publication No. 55-45016 may also be used. Can be done. The amount of sulfur sensitizer added is
The amount may be sufficient to effectively increase the sensitivity of the emulsion. This amount varies over a considerable range under various conditions such as pH, temperature, silver halide grain size, etc.
1 x 10-7 mol or more per mol of silver halide, 5 x 1
It is preferably 0-5 mol or less. Although the molar ratio of the sulfur sensitizer to the selenium sensitizer is arbitrary, it is desirable to use the sulfur sensitizer in an amount equal to or more than the selenium sensitizer.

As the gold sensitizer for the above gold sensitization, the oxidation number of gold may be +1 or +3, and gold compounds commonly used as gold sensitizers can be used. Representative examples include chloroauric acid salts, potassium chloroaurate, auric trichloride, potassium auric thiocyanate, potassium iodoaurate, tetracyano auric acid, ammonium aurothiocyanate, and pyridyl trichlorogold.

The amount of gold sensitizer added varies depending on various conditions, but as a guide, it is 1×10 − per mole of silver halide.
It is preferably 7 mol or more and 5×10 −5 mol or less.

During chemical ripening, there is no need to set any particular restrictions on the timing and order of addition of the silver halide solvent, selenium sensitizer, sulfur sensitizer, and gold sensitizer; for example, at the beginning of chemical ripening (preferably ) or during the chemical ripening process, the above compounds can be added simultaneously or at different times. Furthermore, when adding, the above-mentioned compound may be dissolved in water or an organic solvent miscible with water, such as methanol, ethanol, or acetone, either alone or in a mixed solution.

The pyrazolylpyrimidines used in the present invention are preferably those represented by the following general formulas (III) and (IV).

General formula (III)

[0058]

[Chemical formula 10] General formula (IV)

[0059]

embedded image Here, R1 to R9 each represent the following.

R1, R2: -H, Cn H2n+1
, -OH, -NH2 , -NHNHCHO,

[0061]

[Chemical formula 12] -Cl, -SH, -OH
or -C6 H5 R6: -H, -Cn H2
n+1, -OH, -COOCn H2n+1,
-CN, -Br or -Cl R3: -N
H2, -Cn H2n+1 or -C6 H8
R4: -CN, -COOCn H2n+1, H, -C
l or -Br R5: -H or -Cn H2n+
1 R7: -NH2, -NHCH2 C6 H5
, -NHC6 H5 or -SCH3 R8
:-CH3 R9 :-H n: 1, 2, 3 or 4 In addition, R1 and R6 are bonded to each other to form -(CH2
)3 - or -(CH2)4 -. Furthermore, among the compounds represented by the general formulas (I) and (II), the following are particularly advantageous in terms of ease of obtaining the compound, effects exhibited by the compound, and the like.

R1 is -H, -Cn H2n+1, or -NH2
R2 is -H, -Cn H2n+1, or -OHR3
is -NH2 or -CH3 R4 is -CH or -H R5 is -H or -CH3 R6 is -H or -CN Also, R1 and R6 are -(CH2)4 - or -(
CH2)3- may be used.

[0063] n is 1, 2, 3 or 4.

Among these, pyrazolylpyrimidine having the following partial structure (V) or (VI) is particularly effective.

[0065]

embedded image Z1 and Z2 in the formula are moieties necessary to form a 5-membered ring or a 6-membered ring of the pyrazolylpyrimidine compound.

These compounds are disclosed in Japanese Patent Publication No. 35-3032
It can be synthesized by the method described in the above issue or a method similar thereto. Furthermore, two or more kinds of the compounds of the present invention may be used as necessary.

The pyrazolylpyrimidines used in the present invention are described in detail in, for example, JP-A-50-13032.

Typical compound examples are shown below, but the present invention is not limited to these as specific examples other than those listed in the above publications can also be used in the present invention.

[0069]

[Chemical formula 14]

[0070]

[Chemical formula 15]

[0071]

embedded image The silver halide emulsion of the present invention must contain at least one pyrazolylpyrimidine. It was known from the above-mentioned JP-A-50-13032 that a slight sensitizing effect can be obtained by the presence of pyrazolylpyrimidines. However, the specific effect of selenium sensitization on reducing fog was completely unknown, which was surprising.

The pyrazolylpyrimidines used in the present invention do not have a substituent that forms a complex with silver, unlike the azaindene compounds disclosed in JP-A-59-185329. Through research conducted by the inventors, it has been confirmed that silver halide is adsorbed to silver halide through some kind of interaction, but at this stage nothing is known as to why this effect occurs.

The pyrazolylpyrimidine of the present invention may be added at any stage during the manufacturing process. Preferred is a method in which pyrazolylpyrimidines are added and then ripened.

[0074] This ripening may be carried out completely independently of chemical sensitization known in the art, or may be carried out simultaneously.

To carry out the chemical sensitization independently, it is preferable to add pyrazolylpyrimidines before adding the chemical sensitizer and carry out the chemical sensitization after ripening. Alternatively, after chemical sensitization is completed, pyrazolylpyrimidines may be added and ripened. When chemical sensitization is carried out simultaneously, pyrazolylpyrimidines may be added before or after the addition of the chemical sensitizer, and then ripened.

[0076] In order to more effectively obtain the effect of reducing fog in selenium sensitization and at the same time obtain a larger sensitizing effect, it is preferable to carry out chemical sensitization in the presence of pyrazolylpyrimidines. Further, at this time, it is more preferable to chemically sensitize the film by simultaneously allowing a spectral sensitizing dye to be present.

The amount of pyrazolylpyrimidines added in the present invention is not particularly limited, and may be added in the most preferred amount depending on the type of emulsion, type of compound, and addition method. Usually, preferably from 10-6 to 10 moles per mole of silver halide.
-1 mol, more preferably from 10-5 mol to 10-2 mol, particularly preferably from 10-4 mol to 10-2 mol.

In the present invention, pyrazolylpyrimidines can be added to the emulsion by any known method commonly used for adding additives to photographic emulsions. For example, pyrazolylpyrimidines may be added as a solution in a solvent such as water, alcohols, glycols, ketones, esters, amides, etc. that does not adversely affect photographic properties.

In the present invention, it is preferable to use a monodisperse silver halide emulsion as the silver halide emulsion.

In the present invention, a monodisperse silver halide emulsion refers to one in which the coefficient of variation of the grain size distribution is 0.20 or less when the grain group is observed by electron micrograph. Here, the coefficient of variation of the particle size distribution refers to the value obtained by dividing the standard deviation of the particle size distribution of the particles by the average particle size.

Monodisperse silver halide emulsion as used in the present invention means one with a variation coefficient of 0.20 or less, preferably 0.18 or less, more preferably 0.15.
It is as follows.

In the present invention, the silver halide emulsion contains at least 50% of the total projected area of silver halide grains.
is dominated by tabular silver halide grains, said 50%
It is preferable to use an emulsion in which the average aspect ratio of the tabular silver halide grains occupying 3.0 or more is 3.0 or more.

[0083] The term "tabular grain" means a grain having a plurality of twin planes parallel to each other and having a tabular external shape, regardless of its aspect ratio. Tabular grains also include grains that do not have twin planes and have an aspect ratio of 2 or more, but tabular grains that have twin planes are preferred. An example of the latter is A. Mignot etc.
rnal of Crystal. Growth 2
Examples include anisotropically grown normal crystal grains as reported in Vol. 3, p. 207 (1974).

[0084] In tabular grains, the aspect ratio is:
It means the ratio of diameter to thickness in silver halide grains. That is, it is the value obtained by dividing the diameter of each individual silver halide grain by the thickness. Here, the diameter refers to the diameter when a silver halide grain is observed with an optical microscope or an electron microscope.
Let it be the diameter of a circle with an area equal to the projected area of the particle. Therefore, the aspect ratio of 3.0 or more means that the diameter of this circle is 3.0 times or more the thickness of the particle.

The average aspect ratio is calculated as follows. First, silver halide grains of the emulsion were randomly divided into 100
0 particles are extracted and the aspect ratio of each particle is measured. Next, tabular grains corresponding to 50% of the total projected area are selected in descending order of aspect ratio, and the arithmetic mean of the aspect ratios of the individual grains in the tabular grain group is calculated. Further, the arithmetic mean of the diameter or thickness of each grain of the tabular grain group used to calculate the average aspect ratio is defined as the average grain diameter or average grain thickness, respectively.

[0086] An example of a method for measuring the aspect ratio is a method of taking a transmission electron micrograph using a replica method and determining the circle-equivalent diameter and thickness of each particle. in this case,
The thickness of the particle is calculated from the length of the shadow of the replica.

[0087] In the tabular grains used in the present invention,
The average aspect ratio is 3.0 or more, preferably 3.
．． 0 to 20.0, particularly preferably 3.0 to 8.0. Further, the proportion of tabular grains in the projected area of all silver halide grains in one emulsion layer is 50% or more, preferably 70% or more, particularly preferably 85% or more.

[0088] The tabular grains used in the present invention have an average grain diameter of 0.2 to 10.0 μm, preferably 0.3 to 5.0 μm. In addition, the average particle thickness is
Preferably it is 0.5 μm or less. More preferable tabular grains have an average grain diameter of 0.3 μm or more and 5.0 μm or more.
The average grain thickness is 0 μm or less, the average grain thickness is 0.5 μm or less, the average aspect ratio is 3.0 or more and 8.0 or less, and accounts for 85% or more of the total projected area of all silver halide grains in one emulsion layer.

The tabular grains used in the present invention are Cug
nac, Chateau
Reports on ``Photog'' by Duffin
rapic emulsion chemist
ry” (published by Focal Press, New Yo
rk 1966) pp. 66-72, and A. P. H
．． Trivelli, W. F. Smith
(Smith) ed. “Photo. Jouenal” 80 (
1940) on page 285. Also, JP-A No. 58-113927, No. 58-113928, No. 5
It can be easily prepared by referring to the method described in No. 8-127921. For example, seed crystals containing 40% by weight or more of tabular grains are formed in an atmosphere having a relatively high pAg value with pBr of 1.3 or less. Then a similar p
Tabular grains are obtained by growing seed crystals while maintaining the Br value and adding silver and halogen solutions simultaneously. In such a grain growth process, it is desirable to add a silver and halogen solution to prevent the generation of new crystal nuclei.

The size of the tabular silver halide grains used in the present invention is determined by temperature control during nucleation and/or grain growth, selection of solvent type and quality, and addition of silver salts and halides used during grain growth. It can be adjusted by controlling the speed etc.

The present invention was very useful in improving the contrast characteristic of tabular grains.

The tabular silver halide grains used in the present invention may be any of silver chloride, silver bromide, silver chlorobromide, silver iodobromide, silver iodochloride, or silver iodochlorobromide, but Silver iodide, silver iodochloride, or silver iodochlorobromide is preferable, and moreover, an iodine having an average silver iodide content of 3.0 mol% or more, particularly 3.0 mol% or more and 30.0 mol% or less Silver oxide, silver iodochloride or silver iodochlorobromide are preferred.

From the viewpoint of the halogen composition of the tabular silver halide grains used in the present invention, the grain structure may be any of a uniform structure, a double structure, a multilayer structure, or a structure in which the composition distribution is localized. , a double structure or a multilayer structure is preferable.

The light-sensitive material of the present invention only needs to have at least one silver halide emulsion layer of a blue-sensitive layer, a green-sensitive layer, and a red-sensitive layer on the support. There are no particular limitations on the number and order of the silveride emulsion layer and the non-photosensitive layer. A typical example is a silver halide photographic light-sensitive material having on a support at least one light-sensitive layer consisting of a plurality of silver halide emulsion layers having substantially the same color sensitivity but different light sensitivities. The photosensitive layer is a unit photosensitive layer that is sensitive to blue light, green light, or red light. In a multilayer silver halide color photographic light-sensitive material, the unit photosensitive layers are generally arranged in the following order from the support: a red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer. However, depending on the purpose, the above-mentioned installation order may be reversed, or the installation order may be such that different photosensitive layers are sandwiched between the same color-sensitive layer.

Non-photosensitive layers such as various intermediate layers may be provided between the above-mentioned silver halide photosensitive layers and on the top and bottom layers.

[0096] The intermediate layer includes JP-A-61-43748, JP-A-59-113438, JP-A-59-113440,
It may contain a coupler, a DIR compound, etc. as described in JP 61-20037 and JP 61-20038, and may also contain a commonly used color mixing inhibitor.

A plurality of silver halide emulsion layers constituting each unit photosensitive layer are composed of a high-speed emulsion layer and a low-speed emulsion layer, as described in German Patent No. 1,121,470 or British Patent No. 923,045. A two-layer structure of sensitive emulsion layers can be preferably used. Usually, it is preferable to arrange the layers so that the photosensitivity decreases toward the support, and a non-photosensitive layer may be provided between each halogen emulsion layer. Also, JP-A-57-112751, JP-A No. 62-2003
No. 50, No. 62-206541, No. 62-206543
As described in No. 1, etc., a low-sensitivity emulsion layer may be provided on the side away from the support, and a high-sensitivity emulsion layer may be provided on the side close to the support.

To explain according to a specific example, from the side farthest from the support, low sensitivity blue sensitive layer (BL) / high sensitivity blue sensitive layer (BH) / high sensitivity green sensitive layer (GH) / low sensitivity blue sensitive layer (BL) / high sensitivity blue sensitive layer (BH) / high sensitivity green sensitive layer (GH) / Sensitivity green photosensitive layer (GL)/high sensitivity red photosensitive layer (RH)/low sensitivity red photosensitive layer (RL) order, or BH/BL/GL/G
H/RH/RL order, or BH/BL/GH/GL/
They can be installed in the order of RL/RH, etc.

Alternatively, as described in Japanese Patent Publication No. 55-34932, the layers may be arranged in the order of blue-sensitive layer/GH/RH/GL/RL from the side farthest from the support. JP-A-56-25738, JP-A No. 62-6393
As described in the specification of No. 6, the layers may be arranged in the order of blue-sensitive layer/GL/RL/GH/RH from the side farthest from the support.

In addition, as described in Japanese Patent Publication No. 49-15495, the upper layer is a silver halide emulsion layer with the highest sensitivity, the middle layer is a silver halide emulsion layer with lower sensitivity, and the lower layer is a silver halide emulsion layer with a lower sensitivity. An example is an arrangement composed of three layers having different photosensitivity, in which the photosensitivity is successively lowered toward the support by making the layer a silver halide emulsion layer having a lower photosensitivity than the middle layer. Even in a case where the layer is composed of three layers with different photosensitivity, as described in JP-A No. 59-202464, from the side remote from the support in the same color-sensitive layer, the middle-sensitivity Emulsion layer/high sensitivity emulsion layer/
They may be arranged in the order of low-speed emulsion layers.

In addition, they may be arranged in the following order: high-speed emulsion layer/low-speed emulsion layer/medium-speed emulsion layer, or low-speed emulsion layer/medium-speed emulsion layer/high-speed emulsion layer.

Furthermore, even in the case of four or more layers, the arrangement may be changed as described above.

As mentioned above, various layer structures and arrangements can be selected depending on the purpose of each photosensitive material.

In the photographic light-sensitive material of the present invention, the preferred amount of silver halide contained in the photographic emulsion layer is about 30 mol%.
Silver iodobromide, silver iodochloride, or silver iodochlorobromide containing the following silver iodides. Particularly preferred is from about 2 mole % to about 1
Silver iodobromide or silver iodochlorobromide containing up to 0 mol% silver iodide.

Silver halide grains in photographic emulsions include those with regular crystals such as cubes, octahedrons, and tetradecahedrons, those with irregular crystal shapes such as spherical or plate shapes, and those with irregular crystal shapes such as spherical or plate shapes. It may be one having crystal defects such as crystal planes, or a composite form thereof.

[0106] Regarding the grain size of silver halide, approximately 0.2
They may be fine particles of less than a micron or large particles with a projected area diameter of about 10 microns, and may be polydisperse emulsions or monodisperse emulsions.

Silver halide photographic emulsions that can be used in the present invention include, for example, Research Disclosure (RD) No.
．． 17643 (December 1978), pp. 22-23, “
I. Emulsion preparation
ion and types)” and the same No.
18716 (November 1979), p. 648, No.
307105 (November 1989), pp. 863-865, and "Physics and Chemistry of Photography" by P. Glafkides, published by Pall Montel.
t Physique Photography
ue, Paul Montel, 1967), "Photographic Emulsion Chemistry" by Duffin, published by Focal Press (G.F.D.
uffin, Photographic Emuls
ion Chemistry (Focal Pre
ss, 1966)), “Manufacture and Coating of Photographic Emulsions” by Zelikman et al., published by Focal Press (V.L. Zelik
man etal. , Making and C
oating Photographic Emuls
ion, Focal Press, 1964).

The crystal structure may be uniform, the inside and outside may have different halogen compositions, or it may have a layered structure. Further, silver halides having different compositions may be joined by epitaxial joining. Further, it may be bonded with a compound other than silver halide, such as silver rhodan or lead oxide. Also, mixtures of particles of various crystal forms may be used.

The above emulsion may be of a surface latent image type in which a latent image is mainly formed on the surface, an internal latent image type in which a latent image is formed inside the grains, or a type in which a latent image is formed both on the surface and inside the grains. It is necessary to be a negative emulsion. The internal latent image type emulsion is based on the core/
It may also be a shell-type internal latent image type emulsion. The method for preparing this core/shell type internal latent image type emulsion was disclosed in Japanese Patent Application Laid-Open No. 59-13
It is described in No. 3542. The thickness of the shell of this emulsion varies depending on the development process, etc., but is preferably 3 to 40 nm, particularly preferably 5 to 20 nm.

The silver halide emulsion used is usually one that has been subjected to physical ripening, chemical ripening and spectral sensitization. Additives used in such processes are listed in Research Disclosure No. 17643, same No. 18716 and the same No. 307105, and the relevant parts are summarized in the table below.

In the light-sensitive material of the present invention, the grain size, grain size distribution, halogen composition,
Two or more types of emulsions differing in at least one characteristic such as grain shape and sensitivity can be mixed and used in the same layer.

Silver halide grains covered with grain surfaces as described in US Pat. No. 4,082,553, US Pat.
, 626,498, and JP-A-59-214852, silver halide grains or colloidal silver coated inside the grains are coated with a photosensitive silver halide emulsion layer and/or a substantially non-photosensitive hydrophilic layer. It can be preferably used in a sex colloid layer. Silver halide grains whose interiors or surfaces are coated are defined as silver halide grains, regardless of whether they are in the unexposed or exposed areas of the light-sensitive material.
Refers to silver halide grains that can be developed uniformly (non-imagewise). A method for preparing silver halide grains in which the interior or surface of the grain is covered is described in U.S. Pat. No. 4,626,49.
No. 8, JP-A No. 59-214852.

The silver halides forming the inner core of the core/shell type silver halide grains whose interiors are fogged may have the same halogen composition or may have different halogen compositions. Any of silver chloride, silver chlorobromide, silver iodobromide, and silver chloroiodobromide can be used as the silver halide coated inside the grain or on the surface of the grain. There is no particular limitation on the grain size of these fogged silver halide grains, but the average grain size is 0.01 to 0.
．． 75 μm, particularly 0.05 to 0.6 μm is preferred. There are no particular limitations on the particle shape; regular particles may be used, or polydisperse emulsions may be used, but monodisperse (
At least 95 in weight or number of silver halide grains
% has a particle diameter within ±40% of the average particle diameter).

In the present invention, it is preferable to use non-photosensitive fine grain silver halide. Non-photosensitive fine grain silver halide is a silver halide that is not exposed to light during imagewise exposure to obtain a dye image.
These are fine silver halide grains that are not substantially developed during the development process, and are preferably not fogged in advance.

The fine-grain silver halide has a silver bromide content of 0 to 100 mol %, and may contain silver chloride and/or silver iodide if necessary. Preferably, it contains 0.5 to 10 mol% of silver iodide.

The average grain size (average diameter equivalent to a circle of projected area) of the fine grain silver halide is preferably 0.01 to 0.5 μm, more preferably 0.02 to 0.2 μm.

The fine-grain silver halide can be prepared in the same manner as ordinary photosensitive silver halide. In this case, the surface of the silver halide grains does not need to be optically sensitized;
Also, spectral sensitization is not required. However, prior to adding this to the coating solution, it is preferable to add in advance a known stabilizer such as a triazole-based, azaindene-based, benzothiazolium-based, or mercapto-based compound, or a zinc compound. This layer containing fine silver halide grains can preferably contain colloidal silver.

[0118] The amount of coated silver in the photosensitive material of the present invention is 6.0 g.
/m2 or less is preferable, and 4.5g/m2 or less is most preferable.

Known photographic additives that can be used in the present invention are also described in the three Research Disclosures mentioned above, and the relevant descriptions are shown in the table below.

[0120] Additive type RD17643
RD18716 RD
307105
(December 1978) (November 1979)
(November 1989) 1. Chemical sensitizer page 23 6
Page 48, right column, page 866 2. Sensitivity enhancer 64
Page 8 right column 3. Spectral sensitizer, 23-2
Page 4 648 Page right column ~ 866 ~
Page 868 Super sensitizer
Page 649, right column 4. Brightener page 24
Page 647 Right column Page 868 5. Antifoggant, pp. 24-25 649
Page right column pages 868-870
Stabilizer 6. Light absorber, pages 25-26
Page 649 right column to page 873
filter dye,
Page 650 Left column Ultraviolet absorber 7. Stain inhibitor page 25 right column
Page 650 left column to page 872

Right column 8. Dye image stabilizer page 25 page 650 left column
872 pages 9. Hardener
Page 26 651 Page left column
Pages 874-875 10. Binder 26 pages 651
Page left column pages 873-874 11. Plasticizer, lubricant page 27 65
0 Page right column Page 876 12. Coating aids, pages 26-27 650
Page right column pages 875-876
surfactant
13. Static inhibitor
Page 27 650 Page right column
Pages 876-877 14. matting agent

Pages 878-879.

[0121] In addition, in order to prevent deterioration of photographic performance due to formaldehyde gas, US Pat.
It is preferable to add to the light-sensitive material a compound that can be immobilized by reacting with formaldehyde, as described in No. 7 and No. 4,435,503.

[0122] The photosensitive material of the present invention is disclosed in US Pat. No. 4,74
No. 0,454, No. 4,788,132, JP-A-62
It is preferable to include a mercapto compound described in No. 18539 and JP-A No. 1-283551.

[0123] A fogging agent, a development accelerator,
It is preferable to contain a compound described in JP-A-1-106052 which releases a silver halide solvent or a precursor thereof.

[0124] The photosensitive material of the present invention is disclosed in International Publication WO88/
No. 04794, dyes dispersed by the method described in JP-A No. 1-502912 or EP No. 317,308A,
U.S. Patent No. 4,420,555, Japanese Patent Publication No. 1-25935
It is preferable to contain the dye described in No. 8.

A variety of color couplers can be used in the present invention. A specific example is the above-mentioned Research Disclosure No. 17643, VII-C to G, and the same No. 307105, VII-C-G.

Examples of yellow couplers include US Pat. No. 3,933,501, US Pat. No. 4,022,620, US Pat.
No. 4,248,961, Special Publication No. 58-1073
9, British Patent No. 1,425,020, British Patent No. 1,47
Preferred are those described in US Pat. No. 6,760, US Pat. No. 3,973,968, US Pat. No. 4,314,023, US Pat.

As the magenta coupler, 5-pyrazolone and pyrazoloazole compounds are preferred. Among them, for example, U.S. Pat. No. 4,310,619;
, 351,897, European Patent No. 73,636, U.S. Patent No. 3,061,432, U.S. Patent No. 3,725,067
No., Research Disclosure No. 24220(
(June 1984), Japanese Patent Publication No. 60-33552, Research Disclosure No. 24230 (June 1984), JP 60-43659, JP 61-7223
No. 8, No. 60-35730, No. 55-118034, No. 60-185951, U.S. Patent No. 4,500,6
No. 30, No. 4,540,654, No. 4,556,
Particularly preferred are those described in No. 630 and International Publication No. WO88/04795.

Cyan couplers include phenolic and naphthol couplers. Among them, for example, U.S. Pat. Nos. 4,052,212, 4,146,
No. 396, No. 4,228,233, No. 4,296
, No. 200, No. 2,369,929, No. 2,80
No. 1,171, No. 2,772,162, No. 2,8
No. 45,826, No. 3,772,002, No. 3,
No. 758,308, No. 4,334,011, No. 4
, 327,173, West German Patent Publication No. 3,329,72
9, European Patent No. 121,365A, European Patent No. 249,4
53A, U.S. Patent No. 3,446,622, U.S. Patent No. 4,
No. 333,999, No. 4,775,616, No. 4
, No. 451,559, No. 4,427,767, No. 4,690,889, No. 4,254,212, No. 4,296,199, and JP-A-61-42658. Those described are preferred.

Typical examples of polymerized dye-forming couplers are U.S. Pat. No. 3,451,820;
No. 0,211, No. 4,367,282, No. 4,4
09,320, British Patent No. 4,576,910, British Patent No. 2,102,137, European Patent No. 341,188A
It is stated in the number etc.

[0130] Couplers whose coloring dyes have appropriate diffusivity include US Pat. No. 4,366,237, British Patent No. 2,125,570, European Patent No. 96,570,
Preference is given to those described in German Patent No. 3,234,533.

[0131] Colored couplers for correcting unnecessary absorption of coloring dyes are available in Research Disclosure No.
．． Section VII-G of 17643, No. Section VII-G of No. 307105, U.S. Patent No. 4,163,670, Japanese Patent Publication No. 57-39413, U.S. Patent No. 4,004,929
No. 4,138,258, British Patent No. 1,146
, No. 368 is preferred. In addition, couplers that correct unnecessary absorption of coloring dyes using fluorescent dyes released during coupling, as described in U.S. Pat. No. 4,774,181, and couplers as described in U.S. Pat. No. 4,777,120,
It is also preferable to use a coupler having as a leaving group a dye precursor group capable of reacting with a developing agent to form a dye.

Compounds which release photographically useful residues upon coupling can also be preferably used in the present invention. DIR couplers that release development inhibitors include the aforementioned RD17643, Section VII-F and No. 3071
05, patent described in Section VII-F, JP-A-57-1
No. 51944, No. 57-154234, No. 60-18
No. 4248, No. 63-37346, No. 63-3735
No. 0, U.S. Patent No. 4,248,962, U.S. Patent No. 4,782,
Those described in No. 012 are preferred.

As a coupler that releases a nucleating agent or a development accelerator in an imagewise manner during development, British Patent No. 2,097
, No. 140, No. 2,131,188, JP-A-59-
Those described in No. 157638 and No. 59-170840 are preferred. Also, JP-A-60-107029, JP-A No. 60-107029,
No. 0-252340, JP-A No. 1-44940, JP-A No. 1-
Compounds that release fogging agents, development accelerators, silver halide solvents, etc. through redox reactions with oxidized forms of developing agents, as described in No. 45687, are also preferred.

Other examples of compounds that can be used in the photosensitive material of the present invention include, for example, US Pat.
Competitive couplers described in US Pat. No. 4,283,472, US Pat. No. 4,338,393, and multi-equivalent couplers described in US Pat. -185950, JP-A-62-2425
DIR redox compound releasing coupler described in No. 2, D
IR coupler releasing couplers, DIR coupler releasing redox compounds or DIR redox releasing redox compounds, such as EP 173,302A, EP 31
No. 3,308A, such as the dye-releasing couplers that recolor after separation, such as those described in R.3,308A. D. No. 11449, 242
41, the whitening promoter-releasing couplers described in JP-A-61-201247, e.g., the ligand-releasing couplers described in U.S. Pat. No. 4,555,477, e.g., JP-A-63-7
Examples include the leuco dye-releasing couplers described in US Pat. No. 5,747 and the fluorescent dye-releasing couplers described in US Pat. No. 4,774,181.

The coupler used in the present invention can be introduced into the light-sensitive material by various known dispersion methods.

Examples of high-boiling solvents used in oil-in-water dispersion methods are described, for example, in US Pat. No. 2,322,027.

[0137] Specific examples of high-boiling organic solvents with a boiling point of 175°C or higher at normal pressure used in the oil-in-water dispersion method include:
Phthalate esters (e.g. dibutyl phthalate, dicyclohexyl phthalate, di-2-ethylhexyl phthalate, decyl phthalate, bis(2,4-di-t-amylphenyl) phthalate, bis(2,4-di-t-amylphenyl) isophthalate, bis(1,1-diethylpropyl) phthalate), esters of phosphoric or phosphonic acids (e.g. triphenyl phosphate, tricresyl phosphate, 2-ethylhexyl diphenyl phosphate, tricyclohexyl phosphate, tri-
2-ethylhexyl phosphate, tridodecyl phosphate, tributoxyethyl phosphate, trichloropropyl phosphate, di-2-ethylhexyl phenyl phosphonate), benzoic acid esters (e.g. 2-ethylhexyl benzoate, dodecyl benzoate,
-ethylhexyl-p-hydroxybenzoate), amides (e.g. N,N-diethyldodecanamide, N,
N-diethyl laurylamide, N-tetradecylpyrrolidone), alcohols or phenols (e.g. isostearyl alcohol, 2,4-di-tert-amylphenol), aliphatic carboxylic acid esters (e.g. bis(2-ethylhexyl) sebacate, dioctyl azelate, glycerol tributyrate, isostearyl lactate, trioctyl citrate), aniline derivatives (e.g. N,N-dibutyl-2-butoxy-5-te
rt-octylaniline), hydrocarbons (e.g. paraffin, dodecylbenzene, diisopropylnaphthalene)
can be mentioned. Further, as the auxiliary solvent, for example, an organic solvent having a boiling point of about 30° C. or more, preferably about 50° C. or more and about 160° C. or less can be used. Typical examples include, for example, ethyl acetate, butyl acetate, ethyl propionate, methyl ethyl ketone, cyclohexanone, 2-ethoxyethyl acetate, dimethylformamide.

[0138] The steps and effects of latex dispersion methods and specific examples of latex for impregnation are described in, for example, US Pat. No. 4,199.
, No. 363, West German Patent Application (OLS) No. 2,541,2
No. 74 and No. 2,541,230.

[0139] The color photosensitive material of the present invention contains phenethyl alcohol and JP-A-63-257747, JP-A-62-
272248 and 1,2-benzisothiazolin-3-one, n-butyl p-hydroxybenzoate, phenol, 4-
It is preferable to add various preservatives or antifungal agents such as chloro-3,5-dimethylphenol, 2-phenoxyethanol, and 2-(4-thiazolyl)benzimidazole.

The present invention can be applied to various color photosensitive materials. Typical examples thereof include color negative film for general use or motion pictures, color reversal film for slides or television, color paper, color positive film, and color reversal paper.

Specific examples of suitable supports that can be used in the present invention include, for example, the above-mentioned RD. No. 17643, page 28,
Same No. 18716, page 647 right column to page 648 left column,
and same no. 307105, page 879.

In the light-sensitive material of the present invention, the total thickness of all the hydrophilic colloid layers on the side having the emulsion layer is preferably 28 μm or less, more preferably 23 μm or less, and 18 μm or less.
m or less is more preferable, and 16 μm or less is particularly preferable. Further, the membrane swelling rate T1/2 is preferably 30 seconds or less,
More preferably, the time is 20 seconds or less. The film thickness means the film thickness measured at 25° C. and 55% relative humidity (2 days). Further, the membrane swelling rate T1/2 can be measured according to a method known in the art. For example, A. Green et al.
togr. Sci. Eng. ), Volume 19, No. 2, 124
- Swellometer of the type described on page 129
It can be measured by using In addition, T1/2 is defined as the saturated film thickness, which is 90% of the maximum swollen film thickness reached when treated with a color developing solution at 30°C for 3 minutes and 15 seconds, and the film thickness is increased until 1/2 of this saturated film thickness is reached. defined as the time of

The membrane swelling rate T1/2 can be adjusted by adding a hardening agent to gelatin as a binder or by changing the aging conditions after coating. Further, the swelling rate is preferably 150 to 400%. The swelling rate is calculated from the maximum swollen film thickness under the conditions mentioned above, using the formula: (
Maximum swelling film thickness - film thickness)/film thickness: It can be calculated according to:

In the light-sensitive material of the present invention, it is preferable to provide a hydrophilic colloid layer (referred to as a back layer) having a total dry film thickness of 2 μm to 20 μm on the opposite side to the side having the emulsion layer. This back layer preferably contains the aforementioned light absorbers, filter dyes, ultraviolet absorbers, static inhibitors, hardeners, binders, plasticizers, lubricants, coating aids, surfactants, and the like. The swelling rate of this back layer is 150
~500% is preferred.

[0145] The color photographic light-sensitive material according to the present invention has the above-mentioned RD. No. 17643, pages 28-29, No.
651 left column to right column of 18716, and the same No. 307
105, pages 880-881.

The color developing solution used in the development of the light-sensitive material of the present invention is preferably an alkaline aqueous solution containing an aromatic primary amine color developing agent as a main component. Aminophenol compounds are also useful as color developing agents, but p-phenylenediamine compounds are preferably used, typical examples of which include 3-methyl-4-amino-N,N-diethylaniline, 3-Methyl-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline, 3-methyl-4-amino- Examples include N-ethyl-β-methoxyethylaniline and their sulfates, hydrochlorides, or p-toluenesulfonates. Among these, especially 3-methyl-4
-Amino-N-ethyl-N-β-hydroxyethylaniline sulfate is preferred. Two or more of these compounds can also be used in combination depending on the purpose.

[0147] The color developing solution contains alkali metal carbonate,
pH buffering agents such as borates or phosphates; development inhibitors or antifoggants such as chloride salts, bromide salts, iodide salts, benzimidazoles, benzothiazoles or mercapto compounds; is common. In addition, if necessary, various preservatives such as hydroxylamine, diethylhydroxyamine, sulfites, hydrazines such as N,N-biscarboxymethylhydrazine, phenyl semicarbazides, triethanolamine, and catechol sulfonic acids, ethylene glycol, Organic solvents such as diethylene glycol, development accelerators such as benzyl alcohol, polyethylene glycol, quaternary ammonium salts, amines, dye-forming couplers, competitive couplers, auxiliary developing agents such as 1-phenyl-3-pyrazolidone, viscosity imparting agents. Various chelating agents such as chelating agents, aminopolycarboxylic acids, aminopolyphosphonic acids, alkylphosphonic acids, and phosphonocarboxylic acids may be used in combination. Among these, examples of chelating agents include ethylenediaminetetraacetic acid, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, hydroxyethyliminodiacetic acid, 1-hydroxyethylidene-1,1-
Typical examples include diphosphonic acid, nitrilo-N,N,N-trimethylenephosphonic acid, ethylenediamine-N,N,N,N-tetramethylenephosphonic acid, ethylenediamine-di(o-hydroxyphenylacetic acid), and salts thereof. be able to.

Further, when performing reversal processing, black and white development is usually performed and then color development is performed. This black and white developer has
Dihydroxybenzenes such as hydroquinone, 1-
Known black and white developing agents typified by 3-pyrazolidones such as phenyl-3-pyrazolidone or aminophenols such as N-methyl-p-aminophenol can be used alone or in combination.

[0149] The pH of these color developing solutions and black and white developing solutions
is generally from 9 to 12. The amount of replenishment of these developing solutions depends on the color photographic light-sensitive material being processed, but is generally less than 3 liters per square meter of light-sensitive material, and can be reduced to less than 500 mL by reducing the bromide ion concentration in the replenisher. You can also. When reducing the amount of replenishment, it is preferable to prevent evaporation of the liquid and air oxidation by reducing the contact area of the processing tank with the air.

[0150] The contact area between the photographic processing solution and air in the processing tank can be expressed by the aperture ratio defined below.

That is, aperture ratio=contact area between processing liquid and air (cm2)/capacity of processing liquid (cm3) The above aperture ratio is preferably 0.1 or less, more preferably 0.001 to 0.001. It is 0.05. As a method for reducing the aperture ratio in this way, in addition to providing a shield such as a floating lid on the surface of the photographic processing solution in the processing tank, methods using a movable lid described in JP-A No. 1-82033, 63-21605
The slit development processing method described in No. 0 can be mentioned. Reducing the aperture ratio can be applied not only to both color development and black and white development processes, but also to all subsequent processes such as whitening, whitening fixing, fixing, washing, and stabilization. preferable. Furthermore, the amount of replenishment can be reduced by using means for suppressing the accumulation of bromide ions in the developer.

[0152] The time for color development processing is usually set between 2 and 5 minutes, but the processing time can be further shortened by using high temperature, high pH, and high concentration of color developing agent. can.

The photographic emulsion layer after color development is usually subjected to whitening treatment. The marking process may be performed simultaneously with the fixing process (marker fixing process), or may be performed separately. Furthermore, in order to speed up the processing, a processing method may be used in which the marking process is followed by the marking process. Furthermore, it is possible to carry out the treatment in two continuous whitening fixing baths, the fixing treatment before the whitening fixing treatment, or the whitening treatment after the whitening fixing treatment depending on the purpose. As the whitening agent, for example, compounds of polyvalent metals such as iron (III), peracids, quinones, and nitro compounds are used. Iron (III) is a typical whitening agent.
organic complex salts of iron(III) and aminopolycarboxylic acids such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, methyliminodiacetic acid, 1,3-diaminopropanetetraacetic acid or glycol etherdiaminetetraacetic acid. or complex salts of iron(III) with citric acid, tartaric acid or malic acid. Among these, aminopolycarboxylic acid iron(III) complex salts, including ethylenediaminetetraacetic acid iron(III) complex salt and 1,3-diaminopropanetetraacetic acid iron(III) complex salt, are useful from the viewpoint of rapid processing and environmental pollution prevention. preferred. Furthermore, aminopolycarboxylic acid iron(III) complexes are particularly useful in both whitening solutions and whitening fixing solutions. p of the whitening solution or whitening fixer using these aminopolycarboxylic acid iron (III) complex salts.
H is usually 4.0 to 8, but the pH can be lowered to speed up the process.

[0154] A whitening accelerator may be used in the whitening solution, whitening fixing solution, and their pre-baths, if necessary. Specific examples of useful whitening promoters are described in, for example, US Pat. No. 3,893,858; German Patent No. 1,290,812;
JP 53-32736, JP 53-57831, JP 53-37418, JP 53-72623, JP 53-
No. 95630, No. 53-95631, No. 53-104
No. 232, No. 53-124424, No. 53-1416
No. 23, No. 53-28426, Research Disclosure No. Compounds having a mercapto group or a disulfide group described in No. 17129 (July 1978);
Thiazolidine derivatives described in JP-A-50-140129; JP-A-45-8506, JP-A-52-20832
No. 53-32735, U.S. Patent No. 3,706,5
Thiourea derivatives described in No. 61; West German Patent No. 1,127
, 715, and the iodide salts described in JP-A-58-16,235; West German Patent Nos. 966,410 and 2,748,4
Polyoxyethylene compounds described in No. 30;
Polyamine compounds described in JP-A-49-40,943, JP-A-49-59,644, JP-A-53-94,927, JP-A-54-35,727, JP-A-5
Compounds described in No. 5-26,506 and No. 58-163,940; bromide ions, etc. can be used. Among these, compounds having a mercapto group or a disulfide group are preferred from the viewpoint of a large promoting effect, and are particularly preferred as disclosed in US Pat. No. 3,899.
Preferred are the compounds described in No. 3,858, West German Patent No. 1,290,812, and JP-A-53-95,630. Also preferred are the compounds described in US Pat. No. 4,552,834. These whitening accelerators may be added to the photosensitive material. When fixing color photosensitive materials for photography,
These whitening promoters are particularly effective.

In addition to the above-mentioned compounds, it is preferable that the whitening solution and whitening fixer contain an organic acid for the purpose of preventing whitening stains. Particularly preferable organic acids are compounds having an acid dissociation constant (pKa) of 2 to 5, and specifically, for example, acetic acid and propionic acid are preferable.

[0156] Examples of the fixing agent used in the fixing solution or whitening fixing solution include thiosulfate solution, thiocyanate, thioether compounds, thioureas, and large amounts of iodide salts. ammonium thiosulfate is the most widely used. Also,
It is also preferable to use a thiosulfate in combination with, for example, a thiocyanate, a thioether compound, or a thiourea. As a preservative for a fixer or a whitening fixer, sulfites, bisulfites, carbonyl bisulfite adducts or European Patent No. 294769A are used.
The sulfinic acid compounds described in the above are preferred. Further, it is preferable to add various aminopolycarboxylic acids and organic phosphonic acids to the fixer and whitening fixer for the purpose of stabilizing the solution.

In the present invention, the fixer or white fixer contains a compound having a pKa of 6.0 to 9.0 for pH adjustment, preferably imidazole, 1-methylimidazole, 1-ethylimidazole, 2 - It is preferable to add imidazoles such as methylimidazole from 0.1 to 10 mol/liter.

[0158] The total time of the desilvering process is preferably as short as possible without causing defective desilvering. The preferred time is 1 minute to 3 minutes.
minutes, more preferably 1 to 2 minutes. Further, the treatment temperature is 25°C to 50°C, preferably 35°C to 45°C. In a preferred temperature range, the desilvering rate is improved and stain generation after treatment is effectively prevented.

[0159] In the desilvering step, it is preferable that stirring be as strong as possible. Specific methods for strengthening the stirring include a method of impinging a jet of processing liquid on the emulsion surface of a photosensitive material as described in JP-A-62-183460, and a method of stirring using a rotating means as described in JP-A-62-183461. A method to improve the stirring effect, and a method to further improve the stirring effect by moving the photosensitive material while bringing the emulsion surface into contact with a wiper blade installed in the solution to create turbulence on the emulsion surface, and circulation of the entire processing solution. One method is to increase the flow rate. Such a means for improving stirring is effective for any of the whitening solution, whitening fixing solution, and fixing solution. It is believed that improved stirring speeds up the supply of the whitening agent and fixing agent into the emulsion film, and as a result increases the desilvering rate. Further, the agitation improving means described above is even more effective when a whitening accelerator is used, and the accelerating effect can be significantly increased and the fixing inhibiting effect caused by the whitening accelerator can be eliminated.

[0160] The automatic developing machine used for the photosensitive material of the present invention is disclosed in JP-A-60-191257 and JP-A-60-19125.
It is preferable to have a photosensitive material conveying means described in No. 8 and No. 60-191259. The above-mentioned JP-A-60-1
As described in No. 91257, such a conveyance means can significantly reduce the amount of processing liquid brought into the post bath from the front bath, and is therefore highly effective in preventing deterioration of the performance of the processing liquid. Such an effect is particularly effective in shortening the processing time in each step and reducing the amount of processing liquid replenishment.

The silver halide color photographic material of the present invention is generally subjected to a water washing and/or stabilization step after desilvering. The amount of water used in the washing process varies widely depending on the characteristics of the photosensitive material (for example, depending on the materials used such as couplers), the purpose, the temperature of the washing water, the number of washing tanks (number of stages), the replenishment method such as countercurrent or forward flow, and various other conditions. Can be set. Among these, the relationship between the number of washing tanks and the amount of water in the multi-stage countercurrent method is described in the Journal of the Soc.
iety of Motion Picture
and Television Engine
ers Volume 64, P. 248-253 (May 1955 issue).

[0162] According to the multistage countercurrent method described in the above-mentioned document, the amount of water used for washing can be significantly reduced, but bacteria proliferate due to the increased residence time of water in the tank, and the generated suspended matter adheres to the photosensitive material. Problems such as this arise. In the processing of the color photosensitive material of the present invention, in order to solve such problems, the method for reducing calcium ions and magnesium ions described in JP-A No. 62-288,838 can be used very effectively. . In addition, JP-A-57
-8,542, chlorine-based disinfectants such as thiabendazole, chlorinated sodium isocyanurate, and others, "Chemistry of antibacterial and fungicidal agents" by Hiroshi Horiguchi (1986) Sankyo Publishing, “Microbial Sterilization, Disinfection, and Anti-Mold Technology” (1982), edited by Sankyo Technological Society; “Encyclopedia of Antibacterial and Antifungal Agents” (1982), edited by Society of Industrial Engineers, Japan Society of Antibacterial and Antifungal Agents (1982);
It is also possible to use fungicides, such as benzotriazoles, as described in 1986).

[0163] The pH of the washing water in processing the photosensitive material of the present invention is 4 to 9, preferably 5 to 8. The washing water temperature and washing time can be set in various ways depending on the characteristics of the photosensitive material, its intended use, etc., but are generally selected in the range of 20 seconds to 10 minutes at 15 to 45°C, preferably 30 seconds to 5 minutes at 25 to 40°C. be done. Furthermore, the photosensitive material of the present invention can also be directly processed with a stabilizing solution instead of washing with water. In such stabilization treatment, Japanese Patent Laid-Open Nos. 57-8543 and 58
All known methods described in Japanese Patent No. 14834 and No. 60-220345 can be used.

[0164]Furthermore, subsequent to the water washing treatment, a further stabilization treatment may be performed. An example thereof is a stabilizing bath containing a dye stabilizer and a surfactant, which is used as a final bath for color photographic materials. Examples of the dye stabilizer include aldehydes such as formalin and glitaraldehyde, N-methylol compounds, hexamethylenetetramine, and aldehyde sulfite adducts.

[0165] Various chelating agents and antifungal agents can also be added to this stabilizing bath.

[0166] The overflow liquid resulting from the water washing and/or replenishment of the stabilizing liquid can also be reused in other processes such as the desilvering process.

[0167] When each of the above-mentioned processing liquids is concentrated by evaporation during processing using an automatic processor or the like, it is preferable to correct the concentration by adding water.

The silver halide color light-sensitive material of the present invention may contain a color developing agent for the purpose of simplifying and speeding up processing. In order to incorporate the color developing agent, it is preferable to use various precursors of the color developing agent. For example, indoaniline compounds described in U.S. Pat. No. 3,342,597, U.S. Pat. No. 3,342,599, Research Disclosure No. 14,850 and the same No. 15,159
Schiff base-type compounds described in 1983-13,924, metal salt complexes described in U.S. Patent No. 3,719,492, and urethane compounds described in JP-A-53-135628. be able to.

The silver halide color photosensitive material of the present invention is
If necessary, various types of 1-
Phenyl-3-pyrazolidones may be incorporated. Typical compounds are disclosed in JP-A-56-64339 and JP-A-57-1.
No. 44547 and No. 58-115438.

[0170] Various processing solutions in the present invention can be used at temperatures ranging from 10°C to 5°C.
Used at 0°C. Normally, the standard temperature is 33°C to 38°C, but higher temperatures can be used to accelerate processing and shorten processing time, or lower temperatures can be used to improve image quality and stability of the processing solution. be able to.

[0171] The silver halide photosensitive material of the present invention is also disclosed in US Pat.
No. 49, No. 59-218443, No. 61-23805
The present invention can also be applied to heat-developable photosensitive materials such as those described in European Patent No. 6 and European Patent No. 210,660A2.

[0172]

EXAMPLES The present invention will be explained in more detail below with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Average iodine content is 5 mol%, core iodine content is 20
A slightly rounded monodisperse double-structured octahedron with an iodine content of 1 mol% in the surrounding shell, an average particle size of 0.5 μm, and a coefficient of variation of particle size distribution of 0.12. An emulsion was prepared.

[0174] After the completion of particle formation, desalting was carried out by the usual flocculation method. Subsequently, chemical sensitization was carried out at 61° C. using chloroauric acid, potassium thiocyanate, and the sulfur sensitizer and/or selenium sensitizer listed in Table 1 so as to optimize the 1/100 second sensitivity.

In addition, pyrazolylpyrimidines listed in Table 1 were added to each emulsion in the amounts and positions listed in Table 1 to obtain emulsions A to L.

[0176]

[Table 1] Samples 1 to 1 in which the emulsion prepared in this way was coated as follows.
12 was created.

The emulsion and protective layer were coated on the triacetylcellulose film support provided with the undercoat layer in the following coating amounts.

<Emulsion layer> - Emulsion...emulsion Em-A to L shown in Table-1

(Silver 1.85 x 10-2 mol/m2)
·coupler
(1.54×10-3 mol/m2)

[0179]

[Chemical formula 17] - Tricresyl phosphate (1.10g/m2
)·gelatin
(2.30g/m2) <Protective layer> ・2,4-dichlorotriazine-6-hydride
Roxy-s-triazine sodium salt
(0.08g/m2) ・Gelatin

(1.80 g/m2) These samples were exposed to light for sensitometry, and then subjected to the following color development process.

[0180] The concentration of the treated sample was measured using a green filter.

[0181] The development process used here was 3 under the following conditions.
It was carried out at 8°C.

1. Color development... 2 minutes 45 seconds 2. White mark...
6 minutes 30 seconds 3. Washing with water
... 3 minutes 15 seconds 4. Establishment... 6 minutes 30 seconds 5. water
Wash...3 minutes 1
5 seconds 6. Stable...
3 minutes and 15 seconds The composition of the treatment liquid used in each step is as follows.

<Color developer> Sodium nitrilotriacetate
1.4g sodium sulfite
4.0g sodium carbonate
30.0g potassium bromide

1.4g hydroxylamine sulfate
2.4g4-(N-ethyl-N
-βhydroxyethylamino)-2-methyl-aniline sulfate
Add 4.5g water
1
L<White solution> Ammonium bromide
160.0g ammonia water (28%)
25.0m
l Ethylenediamine-tetraacetic acid sodium salt 1
30 g glacial acetic acid
14ml
add water
1 L <Fixer> Sodium tetrapolyphosphate
2.0g sodium sulfite
4.0g ammonium thiosulfate (70%) 1
75.0ml sodium bisulfite
Add 4.6g water

1 L <stabilizer> Formalin
Add 8.0ml water

1 L.

[0184] For exposure, ordinary wedge exposure was used at 1/100 second.

[0185] Also, a filter is used for the light source to
A color temperature adjusted to 00°K was used.

[0186] In the following description, "fog" and "
The measured values regarding "sensitivity" have the following meanings.

Fog: is the lowest optical density of the characteristic curve,
The larger the value, the more unfavorable it is.

Sensitivity: lowest optical density +0 on the characteristic curve
．． It is the reciprocal of the exposure amount (anti-value) that gives an optical density of 2, and here it is expressed as a relative value with the sensitivity of sample 1 being 100, and the larger the value, the higher the sensitivity, and is preferable.

Next, the following processing was performed to evaluate pressure fog. Each sample was placed in an atmosphere of 55% relative humidity for 3
After leaving it for more than an hour, in the same atmosphere, a thickness of 0.1
The emulsion surface was scratched at a speed of 1 cm/sec with a needle of mmφ applying a load of 4 g. After this sample was subjected to the same development process as before, the density was measured using an aperture of 25 μmφ.
The increase in fog caused by scratching was evaluated, and this was taken as a representative value for pressure fog.

[0190] Furthermore, the following processing was performed to evaluate fog that occurs during storage. After each sample was aged for 7 days in an atmosphere with a temperature of 50° C. and a relative humidity of 60%, the same treatment as before was performed and fog was measured. This data was compared with the previous data immediately after application, and the difference in fog was taken as a representative value of fog over time.

[0191] These results are shown in Table 2.

[0192]

[Table 2] From Table 2, the usefulness of the present invention is clear. That is, Comparative Sample 2, which was subjected to selenium sensitization without using pyrazolylpyrimidines, certainly has high sensitivity, but the fogging immediately after coating, the increase in fog due to scratching, and the increase in fog over time are all high.

Comparative samples 3 and 4 in which pyrazolylpyrimidines were added without selenium sensitization certainly had the effect of increasing sensitivity, but the sensitivity was much lower than in the samples subjected to selenium sensitization.

On the other hand, it can be seen that samples 5 to 12 of the present invention have high sensitivity and at the same time do not significantly increase the above three types of fog.

Furthermore, by comparing Samples 5 and 6, and Samples 7 and 8, it can be seen that chemical sensitization in the presence of the pyrazolylpyrimidines of the present invention is more preferable in terms of both sensitivity and fog.

Furthermore, by comparing Samples 5 and 7, and 6 and 8, it can be seen that in the present invention, it is preferable to use both sulfur sensitization and selenium sensitization in terms of both sensitivity and fog.

Example 2 The average iodine content was 5 mol%, the iodine content in the core part was 1 mol%, the iodine content in the surrounding shell part was 38 mol%, and the iodine content in the outermost part was 1 mol%, Average particle size is 0.6μm, coefficient of variation of particle size distribution is 0.09
A slightly rounded monodisperse triple-structure octahedral emulsion was prepared.

After the particle formation was completed, desalting was carried out by the usual flocculation method. Next, chloroauric acid, potassium thiocyanate, sodium thiosulfate, selenium sensitizer -
6 to optimize the 1/100 second sensitivity using
Chemical sensitization was carried out at 1°C.

In addition, for each emulsion, complexes were formed with the pyrazolylpyrimidines listed in Table 3 or the silver described in JP-A-59-185329 at the addition amounts and addition positions listed in Table 3. Emulsions 2A to 2F were obtained by adding the following nitrogen-containing heterocyclic compound N-1 and sensitizing dyes D-1 and D-2.

[0200]

[Chemical formula 18]

[0201]

[Table 3] The emulsions thus prepared were coated in the same manner as in Example 1 to obtain Samples 2-1 to 2-6.

Next, the same treatment as in Example 1 was carried out, and the results are shown in Table 4.

[0203]

[Table 4] From the results in Table 4, it is clear that the pyrazolylpyrimidines of the present invention are more useful than the nitrogen-containing heterocyclic compounds that can form a complex with silver described in JP-A-59-185329. it is obvious.

[0204] Also, samples 2-4, 2-3, 2-5, 2-
A comparison with No. 6 shows that even higher sensitivity can be achieved by chemically sensitizing in the presence of both the pyrazolyl pyrimidines of the present invention and the sensitizing dye.

Example 3 Silver iodobromide with an average iodide content of 5 mol %, the core part containing silver bromide, the surrounding shell part having an iodine content of 38 mol %, and the outermost part containing silver bromide, on average Particle size is 0.4μ
A slightly rounded, monodisperse triple-structured cubic emulsion having a coefficient of variation of particle size distribution of 0.14 was prepared. Experiments similar to those in Examples 1 and 2 were conducted using the obtained emulsion, and the usefulness of the present invention was confirmed with this emulsion as well.

Example 4 Average iodine content is 8.8 mol%, average aspect ratio is 6
．． 5. A tabular emulsion containing dislocations and having an equivalent sphere diameter of 0.82 μm was prepared. Experiments similar to those in Examples 1 and 2 were conducted using the obtained emulsion, and the usefulness of the present invention was confirmed with this emulsion as well.

Example 5 On a subbed cellulose triacetate film support,
Sample 501, which is a multilayer color photosensitive material, was prepared by applying layers having the compositions shown below.

(Photosensitive layer composition) The numbers corresponding to each component are as follows:
The coating weight is shown in units of g/m2, and for silver halide, the coating weight is shown in terms of silver. However, for sensitizing dyes, the coating amount is expressed in moles per mole of silver halide in the same layer.

(Sample 501) First layer (antihalation layer) Black colloidal silver
silver 0.18 gelatin

1.40 Second layer (middle layer) 2,5-di-t-pentadecylhydroquinone
0.18EX-1

0.18EX-3
0.020
EX-12
2.0×10-3U-1

0.060U-2

0.080U-3
0
．． 10HBS-1
0.10HBS-2

0.020 gelatin

1.04 Third layer (first red-sensitive emulsion layer) Emulsion M
Silver 1.25 emulsion N

Silver 0.25 Sensitizing Dye I
6.9
×10-5 sensitizing dye II
1.8x10-5 sensitizing dye III
3.1×10-4EX-2

0.17EX-10
0.02
0EX-14
0.17U-1

0.070U-2

0.050U-3
0.
070HBS-1
0.060 gelatin
0.87 4th layer (second red-sensitive emulsion layer) Emulsion S
Silver 1.00 Sensitizing dye I

5.1×10-5 sensitizing dye II
1.4
×10-5 sensitizing dye III
2.3×10-4EX-
2
0.20EX-3

0.050EX-10
0.0
15EX-14
0.20EX-15

0.050U-1

0.070U-2
0.0
50U-3
0.070 gelatin
1.30 Fifth layer (third red-sensitive emulsion layer) Emulsion P
Silver 1.60 Sensitizing Dye I

5.4×10-5 sensitizing dye II
1.4
×10-5 sensitizing dye III
2.4×10-4EX-
2
0.097EX-3

0.010EX-4
0
．． 080HBS-1
0.22HBS-
2
0.10 gelatin

1.63 6th layer (middle layer) EX-5
0.040HBS-1

0.020 gelatin

0.80 7th layer (first green-sensitive emulsion layer) Emulsion M
Silver 0.15 emulsion N

Silver 0.15 sensitizing dye IV
3.0×
10-5 sensitizing dye V
1.0x10-4 sensitizing dye VI
3.8×10-4EX-1

0.021EX-6
0
．． 26EX-7
0.030EX-
8
0.025HBS-1

0.10HBS-3
0.01
0 gelatin
0.63 8th layer (2nd
Green-sensitive emulsion layer) Emulsion O
Silver 0.45 sensitizing dye IV

2.1×10-5 sensitizing dye V
7.0
×10-5 sensitizing dye VI
2.6×10-4EX
-6
0.094EX-7

0.026EX-8

0.018HBS-1
0.16HBS
-3
8.0x10-3 gelatin

0.50 9th layer (3rd green-sensitive emulsion layer) Emulsion Q
Silver 1.20 Sensitizing Dye IV

3.5×10-5 sensitizing dye V
8.0
×10-5 sensitizing dye VI
3.0×10-4EX
-1
0.013EX-11

0.065EX-13
0.
019HBS-1
0.25HBS-2

0.10 gelatin

1.54 10th layer (yellow filter layer) Yellow colloidal silver
Silver 0.050EX-5

0.080HBS-1
0.0
30 gelatin
0.95 11th layer (
1st blue-sensitive emulsion layer) Emulsion M
Silver 0.080 emulsion N

Silver 0.070 emulsion R
Silver
0.070 Sensitizing dye VII
3.5×10-4E
X-8
0.042EX-9

0.72HBS-1
0
．． 28 gelatin
1.10 12th layer (second blue-sensitive emulsion layer) Emulsion S
Silver 0.45 sensitizing dye VII

2.1×10-4EX-9
0
．． 15EX-10
7.0×10-3HBS
-1
0.050 gelatin

0.78 13th layer (third blue-sensitive emulsion layer) Emulsion T
Silver 0.77 sensitizing dye VII

2.2×10-4EX-9
0
．． 20HBS-1
0.070 gelatin
0.69 14th layer (first protective layer) Emulsion U
Silver 0.20U-4

0.11U-5

0.17HBS-1
5.0×10-2
gelatin
1.00 15th layer (2nd
Protective layer) H-1
0.40B-1 (diameter 1.7μm) 5.0×
10-2B-2 (diameter 1.7μm)
0.10B-3

0.10S-1
0.20 gelatin
1.20
.

[0210] Furthermore, all layers have good storage stability, processability, pressure resistance,
In order to improve anti-fungal and anti-bacterial properties, anti-static properties and applicability, W-1, W-2, W-3, B-4, B-5, F-1,
F-2, F-3, F-4, F-5, F-6, F-7, F
-8, F-9, F-10, F-11, F-12, F-1
3, and contains iron salts, lead salts, platinum salts, iridium salts, and rhodium salts.

Table 5 shows the physical properties of the emulsions M to U used.

[0212]

[Table 5] Furthermore, a list of the materials used is shown below.

[0213]

[Chemical formula 19]

[0214]

[C20]

[0215]

[C21]

[0216]

[C22]

[0217]

[C23]

[0218]

[C24]

[0219]

[C25]

[0220]

[C26]

[0221]

[C27]

[0222]

[C28]

[0223]

[C29]

[0224]

[C30]

[0225]

[Chemical formula 31]

[0226]

[Chemical formula 32] When experiments similar to those in Examples 1 and 2 were conducted using Emulsion M, Emulsion P, and Emulsion Q, the effects of the present invention were similarly confirmed in multilayer color light-sensitive materials such as those in this Example. .

Claims (6)

[Claims] 1. A silver halide photographic material comprising, on a support, at least one silver halide emulsion layer which has been selenium-sensitized and contains at least one pyrazolylpyrimidine. 2. The silver halide photographic material according to claim 1, comprising the silver halide emulsion chemically sensitized in the presence of at least one pyrazolylpyrimidine. 3. The silver halide emulsion according to claim 2, comprising the silver halide emulsion chemically sensitized in the presence of at least one sensitizing dye and at least one of the pyrazolylpyrimidines. Photographic material. 4. The silver halide photographic photosensitive material according to claim 1, wherein the silver halide emulsion is subjected to a combination of sulfur sensitization and selenium sensitization. material. 5. Claims 1 to 4, wherein the silver halide emulsion contains monodisperse silver halide grains.
The silver halide photographic material according to any one of the above. 6. The silver halide emulsion is characterized in that at least 50% of the total projected area of the silver halide grains is occupied by tabular silver halide grains, and the average aspect ratio of the tabular silver halide grains occupying the 50% is The silver halide photographic light-sensitive material according to any one of claims 1 to 4, characterized in that: is 3.0 or more.