JPS6275527A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To provide high sensitivity and to improve the graininess of a dye image by incorporating internally fogged internal latent image type silver halide particles and a high-speed two-equiv. cyan coupler and by forming a silver halide emulsion layer in which surface latent image type silver halide particles are present so that they are adjacent to the internal latent image type silver halide particles. CONSTITUTION:This silver halide photographic sensitive material contains internally fogged internal latent image type silver halide particles and a high-speed two-equiv. cyan coupler and has at least one silver halide emulsion layer in which surface latent image type silver halide particles are present so that they are adjacent to the internal latent image type silver halide particles. A coupler represented by the formula (where A is a residue of an image forming coupler having a naphthol or phenol ring, m=1 or 2, and Z is a group bonding to the coupling position of the residue and eliminable from A during coupling with the oxidized product of an aromatic primary amine developing agent) is preferably used as the cyan coupler. A silver halide emulsion layer contg. the internally fogged internal latent image type silver halide particles contains a cyan coupler other than the high-speed two-equiv. cyan coupler. The preferred amount of the internally fogged silver halide particles having internal fogging nuclei in the silver halide photographic sensitive material is 5-30mol% (expressed in terms of silver halide) of the amount of the surface latent image type photosensitive silver halide particles.

Description

[Detailed description of the invention]

[Advantages on Production 9/T7 Field] Regarding the silver halide photographic light-sensitive material of the present invention, more specifically, a negative-working silver halide photographic light-sensitive material having a cyan dye image-forming layer having an improved sensitivity-granularity relationship. Regarding. [Prior Art] Conventionally, color silver halide photographic materials, especially silver halide color photographic materials for photography, have been subject to the required performance in each case, such as high sensitivity, good image quality, and color reproduction. There has been a demand for excellent properties in terms of properties and exposure latitude. For this reason, many improved techniques for producing color light-sensitive materials have been developed to date, and the performance of photographic light-sensitive materials has continued to improve. However, in general, when designing silver halide photographic materials, there is a reciprocity between sensitivity and image quality; for example, if the sensitivity is increased by one nib, the image quality deteriorates. Therefore, in recent years, there has been an urgent need to establish techniques for obtaining photosensitive materials with particularly high sensitivity and excellent image quality. The following technical means are known to improve image quality while maintaining high sensitivity. (1) A method of reducing the grain size of a silver halide emulsion while maintaining sensitivity. (2) A method of improving graininess by appropriately mixing silver halide grains with different grain sizes. (3) A method of making a colored image into fine particles by using a DIR compound or a DIR coupler. (4) A method of obtaining a fine particle image using a coupler with poor color development efficiency. (5) A method of improving the graininess of a dye image by using a coloring dye that reacts with oxides in the main developer and bleeds slightly. (6) A method for improving the graininess of dye images by reducing the amount of coupler used relative to silver halide. etc. All of the techniques described in ``2'' are aimed at improving the graininess of images, but each has the following problems and cannot be said to be necessarily satisfactory. That is, for example, (1) above is based on a silver halide grain sensitization technology that does not involve an increase in grain size, which tends to increase fog and deteriorate storage stability, and there is a limit to achieving high sensitivity. Although (2) above is advantageous in terms of widening the exposure latitude, it has little effect on improving graininess. In addition, in (3) and (4) above, the color density of the obtained dye image becomes low, and in order to improve this, halogenated εI
J's Messenger 114: It becomes necessary to increase li,
This is undesirable because it is inconsistent with the demand for tlJ reduction. Furthermore, the techniques described in (5) and (6) above belong to the technique of spreading a so-called dye cloud in which coloring dyes are formed at a fast distance from exposed silver halide grains, and for this purpose, A blurred image is obtained and the sharpness of the image is deteriorated. Although various problems remain as described above, on the other hand, in a multilayer color light-sensitive material, a unit light-sensitive silver halide emulsion layer sensitive to the same spectral wavelength range is formed into a plurality of layers, each having a different sensitivity, for example, two to A structure having a structure in which three layers are laminated is known. Although such light-sensitive materials have the effect of further improving the graininess and exposure latitude of the dye images produced compared to conventional materials, further demands have arisen in recent years. This is because, despite advances in sensitivity and image quality due to the above-mentioned improved technologies, in recent years there has been a demand for smaller screen sizes for color negative photosensitive materials for photography, especially as cameras have become smaller. Due to the need for high-speed shutters to eliminate blur caused by image blur, there is a strong demand for higher sensitivity of photosensitive materials, and there is a need for higher sensitivity and higher image quality in color photosensitive materials. This is because the demands for technological development are becoming stronger. [Object of the Invention] An object of the present invention is to provide a silver halide photographic material which has high sensitivity and excellent graininess of a brown dye image.

[2-concave configuration] The 14th feature of this invention is an internal latent image type mirror that eliminates internal fog.
y> ratio, the child and the fast 2-equivalent cyanide puller, 'r
(T L, 1) having at least 1) silver halide 7L agent layer in which 1° C. type halogen ratio silver grains are present in the iron surface layer adjacent to the 11° C. internal latent f-quadrature silver halide grains;
,'Il? ! T,! ：J°Silver halide photographic light-sensitive material 4. In the present invention, a coupler represented by the following general formula [1] is preferably used as the high speed 2-equivalent cyan coupler. General Formula [1] In the formula, A represents an image-forming coupler residue containing naphthol or phenylene. rr+ represents l or 2. 2 represents a group attached to the coupling position of the coupler residue described in - that can be removed during the coupling reaction, such as a halogen atom (eg, F, CJ, etc.), -8CN. -03O2R,, -0CONR,R2,-0COR,,
-0C3R,. -0COCO-1'? , , -0C8NR,R2,-0
COOR,. -ocO8R or -SR. However, when the number 1 is 2, these 2 represent a corresponding divalent group. Here, R8 and R2 each represent an aliphatic group, an aromatic L°C or a heterocyclic group, and these may be substituted with a suitable substituent. R2 may be a hydrogen atom. Examples of the aliphatic groups represented by R1 and R2 include linear or branched alkyl groups, alkenyl groups, alkynyl groups, and alicyclic hydrocarbon groups. The alkyl group has 1 to 32 carbon atoms, preferably 1 to 2 carbon atoms.
0, such as methyl, ethyl, propyl, methyl, octyl, octadecyl, isopropyl, etc. The alkenyl group has 2 to 32 carbon atoms, preferably 3 to 20 carbon atoms, such as allyl and butenyl. Alkynyl group has 2 to 32 carbon atoms
, preferably from 2 to 20, such as ethynyl and broparkylated txt. The alicyclic hydrocarbon group has 3 to 32 carbon atoms, preferably 5 to 20 carbon atoms,
Examples include cyclopentyl, cyclohexyl, and 10-camphanato. Examples of the aromatic group represented by R1 and R2 include phenyl, (, naphthyl, etc.).The heterocyclic group represented by R1 and R2 includes a carbon atom and at least one group selected from nitrogen, oxygen, and sulfur. 5- and 6-membered rings containing one or more heteroatoms, optionally fused with a benzene ring, such as evapyridyl, pyrrolyl,
Examples include pyrazolyl, triazolyl, doriasilicyl, imidazolyl, tetrazolyl, thiazolyl, oxasilyl, 1,000 adiazolyl, oxadiazolyl, quinolinyl, benzo1,000 azolyl, benzoxasilyl, benzimidazolyl, and the like. Examples of substituents for R1 and R2 include alkyl groups (e.g., evamethyl, ethyl, propyl, butyl, octialfoxy groups (e.g., methoxy, ethoxy, methoxyethoxy, etc.), aryloxy groups (e.g., phenoxy, naphthyloxy, etc.), carboxyl groups, acyloxy groups). (e.g. acetoxy, benzoxy, etc.), acylamino groups (e.g. acetylamino, benzoylamino, carboxypropionylamino, etc.), sulfonamide groups (e.g. methanesulfonamide, benzenesulfonamide, etc.), sulfamoyl groups ((sulfamoyl, phenylsulfamoyl, etc.) famoyl, etc.), halogen atoms (e.g. 7), salts N, a
W'J), carbamoyl group 1'N-methylcarbamoyl group (N-2-methoxyethylcarbamoyl'!
), N-7enylcarbamoyl+ etc.), alkoxycarbonyl groups (e.g. methoxycarbonyl, ethoxycarbonyl, phenylmethoxycarbonyl etc.), acyl groups (e.g. acetyl, benzoyl M), sulfonyl &
(e.g. methylsulfonyl, phenylsulfonyl, etc.),
Sulfinyl groups (e.g. methylsulfinyl, phenylsulfinyl, etc.), y 5 < FJ groups (e.g. morpholino, pyrazolyl, triazolyl, tetrazolyl, imidazolyl, pyridyl, benzotriazolyl, benzimidazolyl, etc.), 7 mi/ groups (e.g. ham 12 modified amino, methylamino, modified methylamino, etc.), alkylthio groups (
(e.g., methylthio, ethylthio, carboxymethyl, etc.) or arylthio groups (e.g., phenylthio, etc.)
, etc. These substituents are the 11 mentioned above.
' may be substituted with a substituent. Among the couplers represented by the general formula, those with lrl are particularly represented by the following general formula l111. General formula tnl (R3-A+ +rr1Z In the formula, m represents 1 or 2, and A1 represents a phenol nucleus.
or a cyan image-forming coupler residue having an α-naphthol nucleus. 2 is a group that is bonded to the coupling position of the above coupler residue and is released when a dye is formed by oxidative canopring with an aromatic primary amine developing agent, and has the same meaning as Z in general formula (1). R3 is hydrogen 11; An alkoxy group having 1 to 20 carbon atoms such as metquine, impropoxy, pentadecyloxy, and ifsiloxy, or an aryloxy group such as phenoxy and p-tert-butylphenoquine, as shown in the following formulas (1) to (4). 7 acylamides,
Alternatively, carbamyl 4 as shown in the following formulas (5) and (6). (
selected from. -NH-Co-X (1)-N
H-3O2-X (2)〇-N)ICON)1-X (4) In the formula, X is a linear or branched alkyl group, a cyclic alkyl group (゛For example, cyclopropyl, cyclohexyl, norbornyl, etc.), or an aryl group (for example, phenyl, -J-7tyl, etc.). Here, the above alkyl group and aryl group include a halogen atom, a nitro group, a cyano group, a hydroxyl group, a carboxyl group,
Amino groups (e.g. amino, alkylamino, dialkylamino, anilino, N-alkylanilino, etc.), alkyl groups (e.g. evamethyl, ethyl, propyl, cyanmethyl, etc.), aryl groups, alkoxycarbonyl groups, acyloxycarbonyl groups, amide groups (e.g., acetamide, methanesulfonamide, etc.), imide groups (e.g., succinimide, etc.), carbamoyl groups (e.g., GfN-butylcarbamoyl, N,N-dihexylcarbamoyl, etc.), alkylsulfonyl groups (e.g., methylsulfonyl, perfluoromethylsulfonyl, etc.) ), sulfamoyl group (e.g.
lN-diethylsulfamoyl, etc.), alkoxy groups (
For example, methoxy, ethoxy, octadecyloxy, etc.)
Aryloxy groups (e.g. phenoxy, p-18rt
-butylphenoxy, 4-hydroxy-3-1crt-
butylphenoxy, etc.), an acyloquine group (e.g., acetoxy, tert-butylcarbonyloxy, etc.), or the like. Y and Y' are the above X, -O
X, -NH-X and -N (X). Represents one selected from. In addition to the above-mentioned substituents, R8 may also contain commonly used substituents. Among the compounds represented by the general formula [+1], more preferred are compounds represented by the following general formula and (closed). m, Z and R1 have the same meaning as the general formula [1110m, Z and R5 R3 is a hydrogen atom, an alkyl group having less than I carbon atoms, especially an alkyl group having 1 to 20 carbon atoms, or a general formula (R
is selected from carbamoyl groups represented by formula (5) or (6) shown in 1. R5+ R6+ R? *
R8 and R9 each represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an alkylthio group, a heterocyclic group, an amide group, a carbonamide group, a sulfonamide group, a sulfamyl group, or a carbamyl group, and W is to form a closed 5- to 6-membered ring (represents a necessary group of non-metallic atoms; for example, R1 represents any of the following groups: a hydrogen atom, a primary, secondary or Tertiary alkyl groups, such as methyl, propyl, isopropyl, n-butyl, tert-butyl, tert-butyl, hexyl, dodecyl, 2-chlorobutyl, 2-hydroxyethyl, 2-phenylethyl, 2-(2,4,6 -)lichlorophenyl)ethyl, 2-amineethyl, etc., and allyl groups, such as kephenyl, 4-methylphenyl, 2,4.6
-trichlorophenyl, 3,5-sipheromophenyl,
4-trifluoromethylphenyl, 2-triflu: 40
Methylphenyl, 3-trifluoromethylphenyl, naphthyl, 2-chloronaphthyl, 3-ethylnaphthyl, etc.
and heterocyclic groups, such as benzofuranyl 7, (, furanyl group, thiazolyl group, benzozazolyl group, naphthothousazolyl group, oxasilyl group, benzoxacylyl group, naphthoxacylyl J1 (, pyridyl group, quin/linyl group, etc.). R7 also represents an amide group, such as amino, methylamino/, diethylylamino, dodecylamino, phenylamino, tolylamino, 4-(3-sulfobenzamido)anili/, 4-cyanophenylamino, 2 - trifluoromethylphenylamide 7, benzothiazolylamino, etc., and carbonamide groups, such as alkylcarbonamide groups such as ethylcarbonamide, decylcarbonamide, phenylethylcarbonamide, etc.
Phenylcarbonamide, 2,4.6-)lichlorophenylcarbonamide, 4-methylphenylcarbonamide, 2-methylquinphenylcarbonamide, 3-[α
-(2,4-di-tert-amylphenoxy)acetamide]benzamide, allyl carbonamide group such as naphthyl carbonamide, thiapryl carbonamide, benzothiazolyl carbonamide, naphthothazolyl carbonamide, oxazolylcarbonamide, etc. Heterocyclic carbonamide groups such as mido, benzoxacylylcarbonamide, imidazolylcarbonamide, benzimidaprilcarbonamide, etc., and sulfonamide groups, such as alkyl groups such as butylsulfonamide, dodecylsulfonamide, phenylethylsulfonamide, etc. Sulfonamide group, phenylsulfonamide, 2.4.6-drichlorophenylsulfonamide, 2-methoxyphenylsulfonamide, 3-carboxyphenylsulfonamide, allylsulfonamide group such as naphthylsulfonamide, thiazolylsulfonamide , heterocyclic sulfonamide groups such as benzozolylsulfonamide, imidazolylsulfonamide, benzimidazolylsulfonamide, benzimidazolylsulfonamide, pyridylsulfonamide, etc., and propylsulfamyl, octylsulfamyl, pentadecylsulfamyl, etc. Alkylsul7amyl groups such as
phenylsulfamyl, 2,4.6-trichlorophenylsulfamyl, 2-methoxyphenylsulfamyl,
Allylsul7amyl group such as naphthylsulfamyl,
Heterocyclic sulfamyl groups such as 1,000 azolylsulfamyl, benzothiazolylsulfamyl, oxacylylsulfamyl, benzimidazolylsulfamyl, pyridylsulfamyl groups, etc., ethylcarbamyl, octylcarbamyl, pentadecyl Alkylcarbamyl groups such as carbamyl, octadecylcarbamyl, phenylcarbamyl,
Allylcarbamyl groups such as 2,4゜6-trichlorophenylcarbamyl, etc., and thiazolylcarbamyl, benzothiazolylcarbamyl, oxacylylcarbamyl, imidazolylcarbamyl, benzimidazolylcarbamyl groups, etc. Heterocyclic carbamyl group. R6, R,, R, and R9 each represent any of the groups defined by R6, and R3 is also -N)(CON
Also represents H-X. W represents a nonmetallic atom necessary to form a 5-membered or 6-membered ring as shown below. That is, benzene ring, cyclohexene ring, cyclopentene ring, thiazole ring, oxazole ring, imidazole ring, pyridine ring, virol ring, tetrahydropyridine ring, etc. Among the compounds represented by the general formula I11, a particularly preferable compound is a compound represented by the following general formula tv1 or (VIl.
, R, , R7, Z and m have the same meanings as in the general formula [11], and R1° represents -NHCCINH-X (X has the same meaning as in the above formula (4)). Specific examples of high speed 2-equivalent cyan couplers are shown below, but the present invention is not limited thereto. (C-1) OT( C/ (C-2) p Shito (C-3) TJ C/ (C-4) (C, -5) t+:l! (C-6) n Shrine OCH, CH25CH2CH20H (C-7) 0 mouth H (C-8) H (C-9) H QC) I, CH25CH2CH, C00H (C-to
) (C-I+) H 0CH2CH2SCHC00H (C-12) 0.1. 16) H (Jl,;)12CH2SCH2CH2So3 (C-
17) nTI T-13 (C-19) H3 (C-20) CHs(C,
-21) H H (C-22) OCT(2C) ICI(,5CH2CooH■ r (C-23) H (C-24) H (C-25) nP(C-26) (C-27) O )T (C-30) H OCR, C0N) IC82CH□OCR. (C-33) nH (C-34) ZengCH (C-35) (C-36) OCHCO□H CH. (C, -37) 1"IT-1 (C-38) (C-40) CH O802CH3 (C-42) CH (C-43) (C-44) CH (C, -45) .□ 0CT( 2C) (C/2 (C-47) (C, -48) p Shido (C-52) H to 5Hu (tl (C-53) T-1 (C-54) u (C-55) ( C-56) (C-57) (C-58) (C-59) H Shito (C-60) (C-61) 1□'' (C-62) H (C-63) TJ (C- 64) (C-,65) (C-66) H (C-67) (C-68) (C,-69) T-1 (c-70) (C-71) (C-72) (C -73) T-1 (C-74) (C-75) C, H, C/ (C-76) p August nl (C, -77) OCRl (C-78) H (C-79 ) The coupler represented by the general formula (l) can be synthesized by a known method, and the synthesis method is described in JP-A-56-27147;
JP-A No. 56-1935, JP-A-50-117422, JP-A No. 47-37425, JP-A No. 54-48237, JP-A No. 53-
No. 52423, No. 53-105226, No. 53-45
No. 524, No. 53-47827, No. 53-39745
No. 50-10135, No. 50-120334, and U.S. Patent No. 3,476.563. The content of the high speed 2-equivalent yellow coupler used in the present invention is lXl0 to 1 mol, particularly lXl per mol of silver halide contained in the silver halide emulsion layer containing the coupler.
A range of 0-2 to 0.8 X to' moles is preferred. The silver halide emulsion layers of this invention having internally fogged internally imaged silver halide grains can contain cyan couplers other than fast 2-equivalent cyan couplers. In this case, it is preferred that the ratio of fast 2-equivalent coupler to total cyan coupler is at least an additional mole percent. The emulsion containing internal latent image type silver halide grains used in the present invention has silver halide grains that mainly form a latent image inside the silver halide grains and have most of the photosensitive nuclei inside the grains. The emulsion is a so-called internal latent image type emulsion, and its silver halide composition includes any silver halide such as silver bromide, silver chloride, silver chlorobromide, silver iodobromide, silver chloroiodobromide, etc. Ru. Particularly preferably, the emulsion is prepared by exposing a portion of a sample coated on a transparent support to a light intensity scale for a defined period of time up to about 1 second to obtain surface images of grains substantially free of silver halide solvent. Surface developer A described below to develop
When developing for 4 minutes at 20"C using the same emulsion sample, and developing for 4 minutes at 20"C using internal developer C described later, which also exposes another part of the same emulsion sample and develops the image inside the grain. Preferably, the maximum density obtained using surface developer A is not greater than 115% of the maximum density obtained with internal developer.
/

It is not greater than 0. Internal latent image emulsions useful in this invention are prepared by coating a test portion of the emulsion on a transparent support, exposing it through a light wedge for a fixed time between 0.01 seconds and 1 second, and applying 0.3% ferri Bleach with potassium cyanide solution at 20'C for 15 minutes, then apply developer B.
The sensitivity when developed at 20'C for 5 minutes at
It is higher by 1.4 in ogE. (The sensitivity is [
This corresponds to the density point of turn l)+0,1). ] Some suitable emulsions of this type are disclosed in U.S. Pat.
No. 2,250, but such emulsions which do not need to contain silver iodide can also be used in the present invention. Internal latent image type silver chlorobromide emulsions and silver bromide emulsions can be used in the present invention as well as various other internal latent image type emulsions. The silver chlorobromide emulsion useful in the present invention includes, as a halide,
It consists of only chloride and bromide, but other halides such as iodide can also be present. The internal latent image type silver halide emulsion used in the present invention includes those prepared by various methods. - For example, U.S. Patent No. 2,592.250, JP-A-52-18
The conversion type silver halide emulsion described in No. 309, or U.S. Pat. No. 3.206.313,
3.317,322, 3.367.778, and Japanese Patent Publication No. 43-29405, silver halide emulsions having internally chemically sensitized halogen and silveride grains; or U.S. Patent No. 3,271,157, U.S. Patent No. 3.447,927, U.S. Patent No. 3.531.291
No. 3,703,584, silver halide emulsions having silver halide grains containing polyvalent metal ions, or U.S. Pat. No. 1,027,1
46, British Patent No. 3,761,266, British Patent No. 3,7
Specification No. 61,276, JP-A-49-106321,
Silver halide emulsions comprising grains having a layered structure as described in JP 50-8524 and JP 53-60222, or US Pat. No. 3,511.622,
These include silver halide emulsions containing silver iodide prepared by the ammonia method described in Japanese Patent Application No. 51-74062. There is no particular limitation on the grain size of the silver halide having fog nuclei inside, which is used in the present invention, but fine grains are preferable.
0.75 μm, more preferably 0.01 to 0.5 am. Further, there is no particular limitation on the grain shape of a silver halide emulsion having fog nuclei inside, and it is regular (regular).
) particles or irregular particles. The silver halide emulsion having fog nuclei inside may be polydisperse, but it is preferably monodisperse (especially one with a coefficient of variation of grain size distribution of 20% or less). The grain size of the silver halide grains having fog nuclei inside used in the present invention is 0.30 am or less, particularly 0.20 μm or less, and the grain size distribution of the grains in the emulsion layer containing the grains is monotonous. Dispersion is preferable in that it does not affect light scattering on photosensitive layers other than the emulsion layer (usually a blue-sensitive layer and a green-sensitive layer), that is, it reduces deterioration in sharpness. Internal latent image emulsions useful in this invention must be partially or completely fogged. 1 mole of fogged internal latent image type emulsion and 3 moles of surface latent image type emulsion were mixed and coated on a support so that the amount of silver was ~/dm2, and developed with developer B for 5 minutes. fog is at least 0
．． It must be sufficient to give a concentration of 50. Further, when an unfogged internal latent image type emulsion is exposed to light at Dmax and treated with developer B for 8 minutes in the same manner as described below, Dmax must be 0.30 or less. Internal fog can be imparted to the internal latent image type emulsion useful in the present invention by simply irradiating the emulsion with light, or other methods such as chemical fogging can also be used. An internal latent image type emulsion having high internal fog and low surface sensitivity can also be obtained by fogging an emulsion having both internal and surface sensitivity and then bleaching with a potassium ferricyanide solution. Another method of producing an internal latent image emulsion with internal fog is to expose the fog-free internal latent image emulsion to high energy radiation such as X-rays. The content ratio of surface latent image type photosensitive silver halide grains and internal fogged silver halide grains in the silver halide photographic light-sensitive material of the present invention is determined by the type of emulsion used (for example, halogen composition), This can be changed depending on the type of photosensitive material used, the contrast of the emulsion used, etc., but in general, silver halide grains of surface latent image type are used, versus internal latent image type, which causes fog. Usually, silver halide having an internal Capri nucleus in the range of 05 to 100%, particularly 2 to 50%, and even 5 to 30% in molar terms of silver halide based on surface latent image type photosensitive silver halide grains. Preferably, particles are used. The silver halide emulsion layer according to the present invention can be composed of a mixture of a surface latent image type silver halide emulsion and an internal latent image type emulsion with internal fog. Alternatively, these two types of emulsions can be coated as adjacent layers in the photographic material. When these two types of emulsions are coated in separate layers, it does not matter which layer is on top, since the internal latent image type emulsion with fogging has sufficient transparency. Even if the surface latent image type emulsion is placed closely to the support,
This is because sufficient transmitted light can be received through the internal latent image type emulsion which is fogged upon exposure. In addition, when coating these two types of emulsions as adjacent layers,
A water-permeable layer may be provided between these emulsion layers to the extent that the effects of the present invention are not impaired. Exposure of the emulsion provided on the support can also be carried out through the support if the support is transparent. Alternatively, the two types of emulsions can be blended and coated over a single emulsion layer containing the fogged internal latent image type emulsion. In this case, the lower emulsion may be the same as or different from the internal latent image type emulsion in which the fog occurred during blending. The compositions of various developers used in this specification (including Examples) to explain the present invention are as follows. Developer solution A N-methyl-p-aminophenol sulfate 2.5g Ascorbic acid 10. 92-diethylaminoethanol 25g Potassium bromide
1g sodium carbonate hydrate 55.
Add 6 g of water to make a total volume of 1j. Developer solution B N-methyl-p-aminophenolsal 7ate 2.0g Sodium sulfite 90 9 Hydroquinone
8. OF! Sodium carbonate hydrate 52.5.9 Potassium bromide
5I Add water and make up the total volume II! shall be. Developer solution CN-methyl-p-aminophenol sulfate 2.0 g Sodium sulfite 90 9 Hydroquinone 8.0 g Sodium carbonate hydrate 52.5 g Potassium bromide
5g Sodium 1000sulfate 10
．． 9 No. 1 of surface latent image type used in the photosensitive material of the present invention
Silver lodenide emulsions include: (a) any silver lodenide used in conventional silver halide emulsions, such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, and silver chloride; can be used. The silver halide grains used in the silver halide emulsion may be obtained by any of the acid method, neutral method, and ammonia method. The particles may be grown all at once, or may be grown after forming seed particles.The method for forming and growing the 9-seed particles may be the same or different. In the silver halide emulsion, halide ions and silver ions may be mixed simultaneously, or one may be mixed in a liquid in which the other is present. Alternatively, while considering the critical growth rate of silver halide crystals, halide ions and silver ions may be generated by sequentially and simultaneously adding them while controlling the pl+ and/or 1) 8g in the mixing pot. This method enables halogenation with a regular crystal shape and nearly uniform particle size! 1 ladle is obtained. After growth, the halogen composition of the particles may be changed using the componentsyn method. During the process of grain formation and/or growth, silver halide grains are produced using cadmium salts, zinc salts, lead salts, thallium salts, iridium salts (including complex salts), rhodium salts (including complex salts), and iron salts ( (including complex salts) to add metal ions to the inside of the particles and/or
Alternatively, an element belonging to the - group can be contained on the particle surface, and reduction sensitizing nuclei can be provided inside the particle and/or on the particle surface by placing the particle in an appropriate reducing atmosphere. Unnecessary soluble salts may be removed from the silver halide emulsion after the growth of silver halide grains is completed, or they may be left contained. When removing the salts, itesearcl+ Di
sclosure (hereinafter abbreviated as RD) No. 17643■
It can be carried out based on the method described in Section. The silver halide grains may have a uniform silver halide composition distribution within the grain, or may be core/shell grains in which the silver halide composition differs between the inside of the grain and the surface layer. Silver halide grains may have regular crystal shapes such as cubes, octahedrons, and dodecahedrons, or may have irregular crystal shapes such as spherical or plate shapes. In the particles, any ratio of the 11001 plane to the +1111 plane can be used. Further, the particles may have a composite form of these crystal forms, or particles of various crystal forms may be mixed. The silver halide emulsion may have any grain size distribution.Emulsions with a wide grain size distribution (referred to as polydisperse emulsions) may be used, or emulsions with a narrow grain size distribution (called monodisperse emulsions) may be used. The term "lit-dispersed emulsion" as referred to in this book refers to one in which the value of the standard deviation of grain size distribution divided by the average grain size is 0.20 or less.
Here, the particle size is the diameter in the case of spherical silver halide,
In the case of grains with a shape other than spherical, the i diameter when the projected image is converted into a circular image of the same area may be used alone or in combination of several types, or polydisperse emulsions and monodisperse emulsions may be used. They may be used in combination. The silver halide emulsion may be a mixture of two or more separately formed silver halide emulsions. Silver halide emulsions can be chemically sensitized by conventional methods. That is, sulfur sensitization method, selenium sensitization method, reduction sensitization method,
Gold and other 1! A noble metal sensitization method using a metal compound can be used alone or in combination. Silver halide emulsions can be optically sensitized to a desired wavelength range using dyes known in the photographic industry as sensitizing dyes. The sensitizing dye may be used alone, but 2 or more may be used in combination; together with the sensitizing dye, it is a dye that itself does not have a spectral sensitizing effect, or a compound that does not substantially absorb visible light. In addition, a supersensitizer that enhances the sensitizing action of the sensitizing dye may be included in the emulsion. Sensitizing dyes include cyanine dyes, merocyanine dyes,
Complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, steryl dyes, hemioxal dyes, and the like are used. Particularly useful dyes include cyanine dyes, merocyanine dyes,
and a complex merocyanine pigment. Silver halide emulsions are used during the manufacturing process of photosensitive materials, during storage,
Alternatively, for the purpose of preventing capri during photographic processing or maintaining stable photographic performance, photographic Compounds known in the art as antifoggants or stabilizers can be added. It is advantageous to use gelatin as the binder (or protective colloid) for surface latent image type and internal latent image type silver halide emulsions, but gelatin derivatives, graft polymers of gelatin and other polymers, and other polymers may also be used. proteins, sugar derivatives,
Hydrophilic colloids such as synthetic hydrophilic polymeric materials such as cellulose derivatives, monopolymers or copolymers can also be used. The light-sensitive material of the present invention may have at least one silver halide emulsion layer according to the present invention on a support. There is no limit, and known techniques can be applied. In the case of a color negative film as a typical example to which the present invention can be advantageously applied, the emulsion layer according to the present invention may be applied to at least one of the cyan coloring layers. When the cyan coloring layer is composed of 21 or more layers having different sensitivities, it is advantageous to apply it to at least the high-sensitivity layer. In the color net LF film, known techniques can be applied to the structures other than the emulsion layer according to the present invention. The photographic emulsion layer and other hydrophilic colloid layers of the light-sensitive material of the present invention can be hardened by using one or more layers of a hardening agent that crosslinks bainggu (or protective colloid) molecules and increases film strength. can. Where is the hardener? I! A hardening agent can be added to the solution to the extent that it is not necessary to add a hardening agent to the solution.
It is also possible to add a hardening agent to the processing solution. A plasticizer can be added to the silver halide emulsion layer and/or the hydrophilic colloid layer of the light-sensitive material for the purpose of increasing flexibility. Preferred PIi-enabling agents are the compounds described in point 8 of RD 17643. The photographic emulsion layer and other hydrophilic colloid layers of the light-sensitive material may contain a dispersion (latex) of a water-insoluble or sparingly soluble synthetic polymer for the purpose of improving dimensional stability. Dye-forming couplers other than fast 2-equivalent yellow couplers can be used in the emulsion layer of the light-sensitive material. The dye-forming couplers are typically selected for each emulsion layer such that a dye is formed that absorbs light in the light-sensitive spectrum of the emulsion layer, with a yellow dye-forming coupler for the blue-sensitive emulsion layer and a dye for the green-sensitive emulsion layer. A magenta dye-forming coupler is used in the sensitive emulsion layer and a cyan dye-forming coupler is used in the red-sensitive emulsion layer. However, depending on the purpose, silver halide color photographic materials may be produced using different combinations from the above. It is desirable that these dye-forming couplers have a group called a ballast group in the molecule, which makes the coupler non-diffusive and has 8 or more carbon atoms. Color correction is available for color-forming pullers, which can be either 4-equivalent, which requires 100% of silver ions to be reduced, or 2-equivalent, which requires only 2 molecules of silver ions to be reduced. Development inhibitors, development accelerators, bleach accelerators, developing agents, silver halide solvents, toning agents, hardeners, capri agents are produced by the force and knobling of colored couplers and oxidized forms of developing agents. Compounds that release photographically useful 7-ragments such as antifoggants, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers are included. Among these, DIR is a coupler that releases a development inhibitor during development and improves image sharpness and image graininess.
called a coupler. In place of the DIR coupler, a DIR compound which undergoes a coupling reaction with the oxidized form of the developing agent to produce a colorless compound and at the same time releases a development inhibitor may be used. The DIR couplers and DIR compounds used include those with an inhibitor directly attached to the coupling position and those with an inhibitor attached to the coupling position.
It is bonded to the coupling position via a valence group, and the inhibitor is bonded in such a way that the inhibitor is released by an intramolecular nucleophilic reaction or an intramolecular electron transfer reaction at the base circle separated by the coupling reaction ( (referred to as timing DIR couplers and timing DIR compounds). Furthermore, inhibitors that are diffusible after release and those that are not so diffusible can be used alone or in combination depending on the purpose. A colorless coupler that undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer but does not form a dye (referred to as a competitive coupler) can also be used in combination with a dye-forming coupler. As the yellow dye-forming coupler, known acylacetanilide couplers can be preferably used. Among these, benzoylacetanilide and pivaloyl7ceto7nilide compounds are advantageous. As the magenta dye-forming coupler, known 5-pyrazolone couplers, pyrazolobenzimidazole couplers, pyrazolotriazole couplers, open-chain acylacetonitrile couplers, ingzolone couplers, and the like can be used. As cyan dye-forming couplers, phenolic or 7-tole couplers are generally used. Among dye-forming couplers and other additives that do not need to be adsorbed onto the surface of the silver herodenide crystal, hydrophobic compounds are dispersed using known methods such as solid dispersion, latex dispersion, and oil-in-water emulsion dispersion. This can be appropriately selected depending on the chemical MII formation of the hydrophobic compound such as the coupler. The acid form of the developing agent or the electron transfer agent may migrate between the emulsion layers of the light-sensitive material (between the same color-sensitive layers and/or between different color-sensitive layers), causing color turbidity or deterioration of sharpness. In addition, a color antifoggant can be used to prevent graininess from becoming noticeable. The color anti-capri agent may be contained in the emulsion layer itself, or
An interlayer may be provided between adjacent emulsion layers and contained in the interlayer. The photosensitive material can contain an image stabilizer that prevents the deterioration of the dye image. Preferably, the compounds that can be treated are those described in RD 17643, section 2, J. A hydrophilic colloid layer such as a protective layer or an intermediate layer of a photosensitive material may contain an ultraviolet absorber in order to prevent fogging caused by discharge caused by charging of the photosensitive material due to friction, etc., and deterioration of images due to ultraviolet rays. In order to prevent deterioration of magenta dye-forming couplers and the like due to formalin during storage of the light-sensitive material, a formalin scavenger can be used in the light-sensitive material. When dyes, ultraviolet absorbers, etc. are contained in the hydrophilic colloid layer of a photosensitive material, they may be mordanted with a mordant such as a cationic polymer. Compounds that change the developability, such as development accelerators and development retardants, and bleach accelerators can be added to the silver halide emulsion layer and/or other hydrophilic colloid layers of the light-sensitive material. Compounds that can be preferably used as development accelerators are the compounds described in RDI Flo No. 43, Section XXI, B to D, and development retardants are compounds described in Section XXI, Section E of RDI Flo No. 17643. A black and white developing agent and/or its precursor may be used to accelerate development or for other purposes. The emulsion layer of light-sensitive materials increases sensitivity, increases contrast,
Alternatively, polyalkylene oxide or its derivatives such as ethers, esters, and amines, 1,000-onythyl compounds, thiomorpholines, quaternary ammonium compounds, urethane derivatives, urea derivatives, imiguzol derivatives, etc. may be included for the purpose of accelerating development. The photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, and an anti-irradiation layer. In these layers and/or in the emulsion layer, there is no development treatment.
A dye that is leached from the light-sensitive material or bleached may be contained therein. Such dyes include oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, cyanine dyes, azo dyes, and the like. In the silver halide emulsion layer and/or other hydrophilic colloid layer of the light-sensitive material, reduction of gloss of the light-sensitive material, improvement of writeability,
A matting agent can be added for the purpose of preventing photosensitive materials from sticking to each other. A lubricant can be added to the photosensitive material to reduce sliding friction. An antistatic agent can be added to the photosensitive material for the purpose of preventing static electricity. The antistatic agent may be used in the antistatic layer on the side of the support on which the emulsion is not laminated, and the protective colloid layer other than the emulsion layer on the side on which the emulsion layer is laminated with respect to the emulsion layer and/or the support. Preferably used antistatic agents which may be used are the compounds described in RD 17613 XI[I. The silver halide emulsion layer and/or other hydrophilic colloid layer of a light-sensitive material has various properties such as improving coating properties, preventing static electricity, improving slipperiness, dispersing emulsions, preventing adhesion, and photographic properties (promoting development, hardening, sensitization, etc.). ) Various surfactants can be added for the purpose of improvement. Supports used in the photosensitive material of the present invention include films made of semi-8-component or synthetic polymers such as cellulose acetate, cellulose nitrate, polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, and polyamide; a flexible support provided with a reflective layer;
Includes glass, genus 4, pottery, etc. The hydrophilic colloid layer of the photosensitive material can be applied directly or after applying corona discharge, ultraviolet irradiation, flame treatment, etc. to the surface of the support as necessary, or to improve the adhesion, antistatic property, dimensional stability, and abrasion resistance of the support surface. The coating may be applied through a 1M or higher undercoat layer that improves properties such as hardness, hardness, anti-haley silane properties, friction properties, and/or other properties. When coating photosensitive materials, thickeners may be used to improve coating properties.For example, thickeners, such as hardeners, have quick reactivity and can be added to the coating solution in advance to prevent deltation before coating. For materials that may cause such problems, it is preferable to mix them using a static mixer or the like immediately before application. As coating methods, extrusion coating and curtain coating, which allow two or more types of layers to be applied simultaneously, are particularly useful, but packet coating may also be used depending on the purpose. Further, the coating speed can be arbitrarily selected. To obtain a dye image using the light-sensitive material of the present invention, after exposure,
Use color photo processing. Color processing can be applied to known surface latent image type photosensitive materials. However, in order to reduce the capri of the internal fog emulsion, the color developing solution should not contain iodide ions and silver halide solvents.
Even if it does contain it, it is desirable that the amount thereof be as small as possible.Color processing includes a color development process, a bleaching process, a fixing process, a washing process, and, if necessary, a stabilizing process. Instead of the process using a bleach-fixing solution, a bleach-fixing process can be performed using a one-bath bleach-fix solution, and a one-bath development process that allows color development, bleaching, and fixing to be carried out in one process. A monobath processing process using a bleach-fix processing solution can also be used. In combination with these processing steps, a pre-hardening process, its neutralization process, a stop-fixing process, a post-hardening process, etc. may be performed. In these treatments, instead of the color development treatment step, an activator treatment step may be performed in which a color developing agent or its precursor is contained in the material and the development treatment is performed with an activator solution, or the monobath treatment may be performed. Activator treatment can be applied. Typical treatments during these treatments are shown below. Process Constant fixation process/Color development process - Bleach fix process/Pre-hardening process - Color development process - Stop fixing process - Water washing process - Bleach process Constant fixation process - Water washing process - Post hardening Membrane treatment process/Color development treatment process - Water washing treatment process - Supplementary color development treatment process - Stop treatment process - Bleach treatment process Constant fixation treatment process/Activator treatment process - Bleach-fix treatment process/Activator treatment process - Bleaching treatment process Constant The treatment temperature is usually selected in the range of 10°C to 65°C,
The temperature may exceed 65°C. Preferably 25°
Processed at temperatures between 45°C and 45°C. A color developing solution generally consists of an alkaline aqueous solution containing a color developing agent. The color developing agent is an aromatic primary amine color developing agent, and includes ami/7-el derivatives and 1]-phenylenone amine derivatives. These color developing agents are free of organic acids and +j! It can be used as a salt of IFm, for example, salt 8! Acids, sulfates, ++ ) luenesulfonates, sulfites, oxalates, benzenesulfonates, etc. can be used. These compounds are generally used at a concentration of preferably 0.1 to 30 g, more preferably 1 to 15 g, for color developer 11.
I? Use at a concentration of Examples of the above-mentioned amino 7 ether-based developer include 0-amino/7 ether, '')-7 mil/7 ether, and 5-7 ether.
-2-hydroxy-toluene, 2-ami/-3-hydroxy-toluene, 2-hydroxy-3-ami/-1,4
-dimethyl-benzene and the like. Particularly useful Pt5 primary aromatic amine color developers include N,
It is an N'-noalkyl+1-7 2-2 diamine compound, and the alkyl group and phenyl group may be unsubstituted or unsubstituted. Among them, particularly useful compound examples include N-No-methyl-11-phenylenecyamine hydrochloride and N-methyl-p-phenylenediamine hydrochloride W,N. N'-tumethyl-p-phenylenecyamine hydrochloride, 2-
Amino-5-(N-ethyl-N-dodecylamino)-
) toluene, N-ethyl-N-β-notanesulfonamidoethyl-3-methyl-4-ami/aniline sulfate, N-
Ethyl-N-β-hydroxyethylamide/aniline, 4
-7mi/-3-/chiruN, N'-noethylaniline,
Examples include 4-amino-N-(2-methoxyethyl)-N-ethyl-3-methylaniline-p)luenesulfonate. Further, the above color developing agents may be used alone or in combination of two or more. Furthermore, the above color developing agents may be incorporated into color photographic materials. In this case, it is also possible to process the silver halide color photographic light-sensitive material with an alkaline solution (activator solution) instead of a color developing solution. The color developing solution may contain alkaline additives commonly used in developing solutions, such as sodium hydroxide, potassium hydroxide, ammonium hydroxide, sodium carbonate, potassium carbonate, sodium sulfate, sodium methborate, or borax, and various other additives. additives, such as benzyl alcohol,
It may contain an alkali metal halide such as potassium bromide or potassium chloride, a development regulator such as citradinic acid, a preservative such as hydroxylamine or sulfite, and various antifoaming agents and interfaces. An activator and a suitable solvent such as methanol, dimethylformamide or trimethylsulfoxide may be included as appropriate. The p++ of the color developing solution is usually 7 or more, preferably about 9-13. In addition, the color developing solution used in the present invention may optionally contain antioxidants such as diethylhydroxyamine, tetronic acid, tetronimide, 2-anili7ethanol, hydroxyacetone, aromatic secondary alcohol, hydroxamic acid, Pentose or hexose, pyrogallol-1,
3-methyl ether etc. may be contained. In the color developing solution, various chelating agents can be used in combination as metal ion sequestering agents. For example, as the chelating agent, amine polycarboxylic acids such as ethylenediaminetetraacetic acid and noethylenetriaminepentaacetic acid, organic phosphonic acids such as 1-hydroxyethylidene-1,1'-nophosphonic acid, ami/tri(methylenephosphonic acid), or ethylene 7-minopolyphosphonic acids such as noaminetitralinic acid, oxycarboxylic acids such as citric acid or gluconic acid, phospho/carboxylic acids such as 2-phosphonobutane-1,2,4-tricarboxylic acid, tripolyphosphoric acid or hexametaphosphoric acid, etc. Examples include polyphosphoric acid and polyhydroxy compounds. It is believed that the present invention allows the internal capri emulsion to be developed by iodide ions released from the so-called tri-emulsion. Therefore, even if internal capri emulsion is developed by lit alone, it will cause fogging and wrinkling.~1 developer is preferable. In addition, strong silver halide solvents such as thiananates and thiosulfates are also preferably not included in the developing solution since they also cause an increase in capri irrespective of the image quality. The bleaching process may be carried out simultaneously with the fixing process as described above, or may be carried out separately.) 7 Metal complex salts of organic acids are used as bleaching agents, such as polycarboxylic acids, amino polysaccharides, etc. Contains carboxylic acid, oxalic acid, citric acid, etc. Acids with coordinated metal ions such as iron, cobalt, and copper are used. Among the above organic acids, the most preferred organic acids include polycarboxylic acids and aminopolycarboxylic acids. Specific examples of these include ethylenecyaminetetraacetic acid, noethylenetriaminepentaacetic acid, and ethylenediamine-N-(β-oxyethyl)-N.
, N', N'-)acetic acid, propylenediaminetetraacetic acid, nitrilotriacetic acid, cyclohexanediaminetetraacetic acid, imino? Examples include i1' acid, nohydroxyethylglycine citric acid (or tartaric Wl>, ethyl ether noamine tetraacetic acid, glycol ether diamine tetraacetic acid, ethylenediaminetetrapropionic acid, phenylenediaminetetraacetic acid, etc.) These polycarboxylic acids The acids may be alkali metal salts, heptammonium salts or water-soluble amine salts. These bleaching agents are preferably used at 5-450 g/Z, more preferably 20-2502/l. In addition to the bleaching agent, a solution containing sulfite can be used as a preservative if necessary.Also, the bleaching solution is ethylenenoaminetitraacetate (I).
[) It may be a liquid containing a famous salt bleach and a large amount of a halide such as ammonium bromide. In addition to ammonium bromide, the halides include hydrochloric acid, hydrobromic acid, lithium bromide, and
Jum, potassium bromide, sodium iodide, potassium iodide, ammonium iodide, and the like can also be used. For bleaching solution, Vf Ma No. 46-280, Special Publication No. 45-8
No. 506, No. 4G-556, Belgian Patent No. 770,
No. 910, Special Publication No. 45-8836, No. 53-9854
No., JP-A No. 54-71634 and JP-A No. 49-42349
It is possible to add various bleaching accelerators as described in No. 1, etc. The fixing solution may have a commonly used composition. Examples of the bleaching agent used in the bleaching constant Xi solution include the metal complex salts of organic acids described in the bleaching process above.
Preferred Compounds and Concentrations in Treatment Solutions [Examples] Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto. Example 1 The following layers were sequentially coated on a transparent support having an antihalation layer (containing 0.4 OS of black colloidal silver and 3.0 g of gelatin) on a cellulose triacetate film subjected to J+ processing to prepare Sample 1. was created. In addition, the amount of additives added is shown in the amount per photosensitive material 1,
Further, the amount of silver halomonide emulsion is expressed in terms of silver. Sample 1 Layer 1... Average particle size α8μm color sensitized to red sensitivity
Red-sensitive silver iodobromide monodispersed emulsion of 1.2 g and 2.2 g of gelatin and 0.80 ! A red-sensitive emulsion layer containing 0.81 tricresyl phosphate in which the following comparative cyan coupler (C'-1) of I was dissolved. R2..., ... Retention layer having gelatin of 239. Furthermore, Samples 2 to 8 were prepared in the same manner as Sample 1, except that the cyan coupler (C'-1) in Sample 1 was replaced with the cyan coupler and the amount added shown in Table 1. Table 1 (C'-1) (C'-2) H Next, samples 9 to 16 were prepared in the same manner as samples 1 to 8, except that the following internal capri emulsion 0.159 was added to layer 1. . The results are shown in Table 2. Internal capri emulsion Chondrale double jet method produces an average grain size of 0.
．． A 20 μm silver bromide cubic emulsion was prepared and fogged at low pAg with hydrazine and total complex salt. Silver bromide was shelled to a thickness of 0.03 .mu.m on the surface of the emulsion thus prepared to prepare an internal capri emulsion having an average grain size of 0.26 .mu.m and a coefficient of variation of grain size distribution of 14%. These samples were wedge exposed, followed by normal processing of color negative films, and sensitivity and RMS granularity were measured. The results are shown in Table 2. In Table 2, the sensitivity is expressed as a relative sensitivity with the sensitivity of Sample 1 being 100. Furthermore, RMS granularity is the standard deviation of density value fluctuations that occur when a dye image with a dye image density of (Dmin, + 0.3) is scanned by a microdensitometer with a rectangular scanning area of 5 μm x 50 μm. 1000 of
Shown as double value. From Table 2, it can be seen that surface latent image type silver halide emulsion using a high speed 2-equivalent cyan coupler has a significantly higher value than when an internal fog type emulsion is added to a surface latent image type silver halide emulsion layer using a cyan coupler other than the present invention. It can be seen that when added to the silver emulsion layer, the RMS value is dramatically improved. This is consistent with the results of visual evaluation conducted in actual plants. Furthermore, in terms of sensitivity, the sensitizing effect of combining a high-speed 2-equivalent cyan coupler with an internal fog type emulsion exceeds the sensitizing effect expected from the combination of a cyan coupler other than the present invention with an internal fog type emulsion. It can be seen that it can be obtained by [Effects of the Invention] The silver halide photographic material of the present invention provides a yellow dye image having an improved sensitivity-graininess relationship. In addition, by using internal latent image type silver halide grains with internal fog in combination with a high-speed 2-equivalent cyan coupler, sensitivity and graininess can be improved, and color density can be improved.
If this is reflected in the amount of silver halide, the effect of improving sharpness by saving silver and making the film thinner can be obtained.

Claims (1)

[Claims] At least one layer containing internal latent image type silver halide grains imparted with internal fog and a high speed 2-equivalent cyan coupler, and in which surface latent image type silver halide grains are present adjacent to the internal latent image type silver halide grains. 1. A silver halide photographic material comprising a silver halide emulsion layer.