JPS6291945A - Silver halide color photographic sensitive material having multilayered structure - Google Patents

Abstract

PURPOSE:To obtain superior sharpness and color reproducibility in an ordinary photographing region and superior graininess in an under-exposure photographing region by forming a high sensitivity emulsion layer giving <=0.3 maximum density of developed color, medium and low sensitivity emulsion layers each giving >=0.8 maximum density of developed color. CONSTITUTION:This silver halide color photographic sensitive material has a three-layered structure. The blue- or green-sensitive top layer (high sensitivity layer) gives <=0.3, preferably 0.1-0.25, especially preferably 0.1-0.2 maximum density of developed color. The blue- or green-sensitive intermediate layer (medium sensitivity layer) gives >=0.8, preferably 0.8-1.8, especially preferably 1.1-1.6 maximum density of developed color. The blue- or green-sensitive lowest layer (low sensitivity layer) gives >=0.8, preferably 0.8-2.0, especially preferably 0.9-1.6 maximum density of developed color.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a multilayer silver halide color photographic material that has excellent graininess, sharpness, and color reproducibility, and more specifically, it relates to a multilayer silver halide color photographic material that has excellent graininess, sharpness, and color reproducibility. The present invention relates to a color photographic material that has excellent sharpness and graininess in underexposed photographic areas.

(Prior Art) There has been a strong demand for the development of silver halide color photographic materials with high sensitivity and excellent graininess and sharpness, and many proposals have been made for this purpose.

For example, British Patent No. 923, O'lj is divided into a high-speed emulsion layer and a low-speed emulsion layer containing a diffusion-resistant coupler that develops substantially the same hue, and furthermore, the maximum color density of the high-speed layer is lowered. It is disclosed that the sensitivity can be increased by adjusting the grain size without making it coarse. However, with this method, the graininess was still unsatisfactory.

Japanese Patent Publication No. 4t9-16419.9 discloses that the maximum color density between the high-sensitivity emulsion layer and the low-sensitivity emulsion layer is 0. The following method of providing a medium-sensitivity silver halide emulsion layer has been proposed. It is true that this method significantly improved the graininess in the medium density range, but it also increased Capri density, deteriorated sharpness in the medium density range, and made gradation changes in the middle density range highly dependent on processing. There were some problems.

Furthermore, European Patent Publication No. 736603 describes a three-layer structure of the emulsion as described above, which suppresses the maximum color density of the highest sensitivity layer after exposure and development to 0.1 or less, and suppresses the maximum color density of the intermediate sensitivity layer and the lowest sensitivity layer. It has been proposed that the maximum color density should exceed θ and B. This method certainly allows Tokko Sho Geta/! 4t9! The sharpness, which was one of the issues with the issue, has been improved to some extent. However, even with this method, the sharpness, especially in the exposure area most frequently used during photographing, is still not sufficient.

This is because the color density share of the highest sensitivity layer is not low enough, and in the underexposed shooting area, the highest sensitivity layer does not develop color over the entire surface, and the grain improvement effect (grain disappearing effect) due to the entire surface color development does not occur. Conceivable. Furthermore, in the normal shooting range, the highest sensitivity layer is almost completely colored, and the middle sensitivity layer is also quite colored, so the sharpness and color reproducibility are still far from satisfactory.

Furthermore, regarding the processing dependence of gradation, it is difficult to match the processing dependence and development progress of the highest sensitivity layer and the middle sensitivity layer, so that the connection between gradations may be poor.

Furthermore, JP-A-37-736336 discloses that a non-light-sensitive intermediate layer containing a dye image-forming coupler is provided between a high-sensitivity layer and a low-sensitivity layer that are sensitive to substantially the same spectral region. ≦θ−J&jg≦ has silver halogenide emulsion layers of high sensitivity, intermediate sensitivity, and low sensitivity, and a non-photosensitive layer may be provided between the intermediate sensitivity layer and the low sensitivity layer. Although it has been proposed, this method also allows normal shooting (
The sharpness and graininess in the medium density region, which are most important under the exposure (exposure) conditions, were not fully satisfied, and the gradation changes were highly dependent on processing.

(Problems to be Solved by the Invention) As mentioned above, the problem with the conventional method is that it has high sensitivity, particularly good sharpness and color reproducibility in the normal shooting (exposure) range, and It is difficult to obtain color photographic materials with excellent graininess in underexposed photographic areas, and the present invention is intended to solve this problem.

Therefore, an object of the present invention is to provide a silver halide color photographic material that has excellent sharpness and color reproducibility in normal photographic (exposure) areas and excellent graininess in underexposed photographic areas. There is K.

(Means for Solving the Problems) The object of the present invention is to provide at least one of a low-sensitivity silver halide emulsion layer having blue sensitivity, a medium-sensitivity silver halide emulsion layer, and a high-sensitivity silver halide emulsion layer. A color photographic light-sensitive material prepared by coating three layers in this order from the one closest to the support, or a green-sensitive low-sensitivity silver halide emulsion layer, a medium-sensitivity silver halide emulsion layer and a high-sensitivity silver halide emulsion layer. In a color photographic light-sensitive material formed by coating at least three layers in this order starting from the side closest to the support, the high-sensitivity emulsion layer has a 0°3
It gives the following maximum color density, and both the medium-speed emulsion layer and the low-speed emulsion layer have θ, ? This can be effectively achieved using a color photographic light-sensitive material that is characterized in that it provides the maximum color density as described above.

Embodiments of the invention are described in detail below.

The color light-sensitive material of the present invention comprises a blue-sensitive silver halide emulsion layer and/or a low-sensitivity emulsion layer, a middle-sensitivity emulsion layer, and/or a blue-sensitive silver halide emulsion layer consisting of at least three layers: a low-sensitivity emulsion layer, a medium-sensitivity emulsion layer, and a high-sensitivity emulsion layer. It consists of at least three layers, a sensitive emulsion layer and a high-sensitivity emulsion layer, and is green-sensitive. It is formed by coating a Rogge/silver oxide emulsion layer as an essential layer on a support, but it is also red-sensitive. Preferably, a silver halide emulsion layer is coated.

In the present invention, the uppermost layer of the blue-sensitive layer or the green-sensitive layer (high-sensitivity layer)
is 0.7 to 0. ．． It is preferable to provide a maximum color density of 2j, more preferably in the range of 0.7 to 0.2.

In addition, the intermediate layer (medium sensitivity layer) between the blue-sensitive layer or the green-sensitive layer has θ,
It is preferable to give the maximum coloring density of ♂~/, ♂, and more preferable ranges are /, /~/, and B.

In addition, the lowest layer (low sensitivity) of the blue-sensitive layer or green-sensitive layer is θ, ♂~
It is preferable to give a maximum color density of 2.0, and more preferable is a range of 0.9 to 0.2.

In this way, the silver halide emulsion layer with the same color sensitivity is divided into at least three layers: a high-speed layer, a medium-speed aperture layer, and a low-speed layer, and the maximum color density of these layers is adjusted as described above. This is because applying it to a blue-sensitive layer or a green-sensitive layer is better than a red-sensitive layer in terms of improving color reproducibility.

In the color photographic light-sensitive material of the present invention, the red-sensitive silver halide emulsion layer that can be coated on the support does not necessarily need to be coated in multiple layers, but layer,
Coating is applied to the top of the medium-sensitivity layer and high-sensitivity layer, and the low-sensitivity layer has θ
, ri θ~/, gives the maximum color density of θ, and the medium sensitivity layer is 0.
．． 9th evening~/,! A maximum color density of θ is provided, and the high-sensitivity layer may be adjusted to provide a maximum color density of 0.7 to θ, 20.

A two-pixel coupler or a combination of a two-pixel coupler and an equivalent coupler can be added to the top layer, middle layer, and bottom layer of the same color sensitivity to which the present invention is applied, and the two-pixel coupler for all couplers in these layers can be added. The ratio is 0.3 to / in molar ratio,
It is preferable that θ, and it is particularly preferable that θ is t˜7.0.

The two-pixel coupler may be added to any of the top layer, middle layer and bottom layer of the same color sensitivity to which the present invention is applied, or may be added to two or more layers.

Moreover, it is preferable that at least one kind of couplers added to any of these layers is a polymer coupler.

Here, among the 2-equivalent couplers, a typical example of the coupler core of the 2-equivalent yellow coupler is U.S. Pat.
! , No. 0!7, No. 02, No. 2/θ, No. 3.2t
J-, rθg issue, same, 2,29er.

4t4t3, 3.04t7. It is described in /9g issue, same j, g gua, 5'2/ issue, etc. Among these yellow couplers, acylacetamide derivatives such as benzoylacetanilide and pivaloylacetanilide are preferred.

Therefore, as the yellow coupler residue (Cp), those represented by the following general formulas CI) and [11] are preferable.

Note that yellow represents the bonding position of a leaving group (described later) of the 2-equivalent yellow coupler.

Here, R1 represents a diffusion-resistant group having a total of ♂ to 32 carbon atoms when the leaving group does not have a diffusion-resistant group, and when the leaving group has a diffusion-resistant group (British Patent Co., θ? 3. The coupler described in No. 90, etc.) represents a hydrogen atom,/or more than 1% rogen atom, a lower alkyl group, a lower alkoxy group, or a diffusion-resistant group having a total number of carbon atoms of r to 32.

R2 is a hydrogen atom, or a hydrogen atom,
Lower alkyl group, lower alkoxy group, or total carbon number/
~32 diffusion-resistant groups. When there are two or more R2's, they may be the same or different.

Leaving groups for coequivalent yellow couplers include, for example:
Tokukai Sho + t9-72 to θ, same /, 2 Otsu≦7, around Wharf 3 Tough 6, same! /-/θ7!3, same! /-Ko! 23
3. J4T-3R'197, JP-A-4T7-2AI3
．． 3, 4t♂-6 Otsu 73 (1, qr-4473!,
Same&J'-73/(47, same g9-/θ73g, same geter-/-2?, same! θ-t34t/, same jO-j4t co3
2, same jO-//74Jj, same! /-/θ21.34,
Same J-0-/! ♂3ko9, same! /-/74tj? , same J
-/-3A3/, same! /-26039, same j/-! θ2
3g, same ta/-3rd,! Nico! ,same! /-♂9730,
Same j coco! 3/♂, 12-j/9.2.2, 62
-90932, 63-7. ? jt2j, same! Cuda♂
! da/, same Jl-/2//ko tsu, same j goo 99 yen 33,
same! e-/3329 Re5search Discl
osure/rOf3/, US Patent 3. ? 9 girls, 7!
No. 3. 33, No. 60/etc. Among them (active point of coupler + -0-acyl substitution, -hydantoin substitution, -urazole substitution, -monoxoimide substitution, -pyridanone compound substitution, -sulfonyl substitution, etc.) is preferred.

Representative examples of coupler cores of co-equivalent magenta couplers include U.S. Pat.
l/l/9, same co, 3g 3,703, same 2,3//
, θt No. 2, same 3. /! Ko, / Wa Otsu, same 3. j/9,
4t 2nd issue, 3.0 otsuko.

6J3, same, 90F, 67.3, same 3,233
．． No. 336, British Patent/, 334t, 31! It is stated in the number etc. Among these magenta couplers, pyrazolones or pyrazoloazoles (pyrazolopyrazole, pyrazoloimidazole, pyrazolotriazole, pyrazolotetrazole, etc.) are preferred.

Therefore, the magenta coupler residue (Cp) is
Those represented by the following general formulas [■], [■] and [v] are preferred.

Here, R1 represents a diffusion-resistant group having a total carbon number of ♂ to 32 when the leaving group does not have a diffusion-resistant group, and when the leaving group has a diffusion-resistant group (British Patent, 2, oz3
．． The couplers described in No. t4to, etc.) represent a hydrogen atom, a halogen atom of 1 or more, a lower alkyl group, a lower alkoxy group, or a diffusion-resistant group having a total carbon number of 3.2. R2 represents a hydrogen atom, a halogen atom of more than 1, a lower alkyl group, a lower alkoxy group, or a diffusion-resistant group having a total of ♂ to 32 carbon atoms. When there are two or more R2's, they may be the same or different.

Note that yellow represents the leaving group (to be described later, the bonding position) of the 2-equivalent magenta coupler.

The leaving group for the 2-equivalent magenta coupler is, for example,
Special public Showa 4t? -377! g, 10-37690, j/-
10100, same 62-34t937, and JP-A-Sho Geta-λri Otsu 3er, same r;tter/ko 9!3♂, same 60-
/304t/, same 10-/2293! ,same! θ−/! 9
33 Otsu, same j/-3232, same! /-3233, same J/
-/74tJ7, same j/-/929, same 61-20♂
2nd, same! No 3693! , same j/-IOrr4t2,
Same j/-//23ri/, Same j/-//234t3, Same j
2-67922, 63-/23129, j4t-3
303, same! Goo 4t7639, same! Goo? θ74t
4t1 same! Goo / j 72 <t, same! -Ha μ! 9
,same! t-r3oαq1 3j-//za0341. same!
6-31”04t3, same! 6-3♂otit4t, same j
≦−g0♂ko! ,same! 1/26♂33, 77-4t
04tgu, same j7-3J-♂! ♂, same! 7-9 Otsu 33q
1 together! 7-9g3351 same! 7-9g337 etc. Among these, those substituted with nitrogen-containing heteroterminals, such as those substituted with azole)-alkylthio compounds such as pyrazole and imidabetriazole, those substituted with -aryl compounds thio, those substituted with aryloxy compounds, and those substituted with aryloxy compounds. Substituted ones, those substituted with compounds in which an aryl aldehyde group is combined with an alkyl aldehyde group are preferred.

Examples of the coupler core of a 2-equivalent cyan coupler include US Pat. No. 772.112, 2°! Wow! ,/
λg, 3.002, t, 36, 3, θ34t
1 ♂ No. 92, same, 4t74t, No. 293, same,
4t, 2J, No. 730, same, 3go 7, 63/No., and same 3. It is described in θ4tl, No. 236, etc. Among these cyan couplers, phenols or naphthols are preferred.

Therefore, as the cyan coupler residue (Cp), those represented by the following general formulas [VI], [■], [■] and [■] are suitable.

Note that the arrow represents the bonding position of the leaving group of the 2-equivalent cyan coupler.

Here, R1 represents a diffusion-resistant group having a total of ♂ to 32 carbon atoms when the leaving group does not have a diffusion-resistant group, and when the leaving group has a diffusion-resistant group (UK Patent 2.0 3) represents a hydrogen atom, a halogen atom of more than 1, a lower alkyl group, a lower alkoxy group, or a diffusion-resistant group having a total number of carbon atoms of r to 32.

R2 is a hydrogen atom,/or a halogen atom, a lower alkyl group, a lower alkoxy group, or a total number of carbon atoms/-
32 diffusion-resistant groups. If there are two or more R2,
They may be the same or different.

As the leaving group of the 2-equivalent cyan coupler, for example, Tokko Sho & 9-/77 Jt, Ibid! 7-q♂9i,
Japanese Patent Application Publication No. 1987-2//39, 4t7-374t! ,same! θ-/θ/3! ,same! θ-, 2f22r, 30-9
/323, same 60-//71t22, same! 0-/203
341. Same jO-/3θ4t9/, same! /-/7da37
, Same j/-2/♂2? ,same! /-2ta? ko r1 same j/-
107♂&/, same! /-/103? ,same! ／ −／
'l <42/, same! Ko/r3/j, same! Cor 20
023, same j2-j! jj, 29, same! Co90932
,same! 3-3ri 72g, same j 3-397su! ,same! 3
-Kuzu24t163-4t7F27, same! -3-32
4t23, same! 3-/θ! 22g1 same! Goo/li 73g
1 same tag-1, #23? , Jl-6t/29, same! ! −
3207/, same! ! -Otoyo 9! 2, same! ≦-/93/,
Same 54-t23'l, same! Otsu-72 4t3, same evening 122/da 2, same! ! -4 tons! 7. Same! 6-tO0 google, same! Goichi/Koro♂32, same J-7-, 2θ003,
US patent 3.74 tons, 73! , 3°737.3/!
, same 3. ♂391 kuni 11 q.

227.233, etc. Among these, those substituted with arylalkoxy, those substituted with alkylalkoxy, those substituted with carbonylmethoxy, those substituted with halogen atoms (F', cl, Br, ■), those substituted with sulfonyloxy compounds, and those substituted with sulfonamide compounds. Things such as things are preferable.

In addition, as a co-equivalent coupler, it has a dye moiety whose maximum absorption wavelength is shifted to the short wavelength side due to a bond that is cleaved directly or via a timing group by a coupling reaction with an oxidized form of a developing agent, and as a result of this reaction. A coupler that produces a compound or a precursor thereof having a dye moiety having an extremely thick absorption wavelength before shifting is also preferred. This -equivalent Cap2- includes those represented by the following general formula (X).

Cp (TIME)n
) where CP represents a coupler residue capable of releasing -(TIME)n-X-Dye through a coupling reaction with an oxidized form of an aromatic primary amine developing agent. TIME represents a timing group, and n represents θ or a positive integer. Dye is a dye residue and X represents an auxochrome residue of the dye.

Here, the coupler residue represented by CP is one that forms a dye through a coupling reaction with an oxidized product of an aromatic primary amine developing agent, and the other that forms a colorless substance (so-called colorless coupler residues). C
p may have a diffusion-resistant group, may not have a diffusion-resistant group, or may have an alkali solubilizing group.

When n≧/, the timing group represented by TIME is C
It represents a divalent or trivalent organic group that connects the coupling part of p and -X-Dye. When n=0, -X-D
ye will be directly coupled to the coupling part of Cp.

Examples of the mechanism for releasing -X-Dye when TIME is present include those disclosed as photographically useful group (hereinafter abbreviated as PUG) release timing couplers.

A method for releasing PUG by an intramolecular nucleophilic substitution reaction after elimination, described in U.S. Pat. 7-/! 234t,
77-/77034F, a method for releasing PUG by electron movement along a conjugated system after separation, JP-A-Shoj? -jtrj7, and the same! ♂-20974t OK
The method of releasing PUG by causing an intramolecular nucleophilic substitution reaction with the newly generated nucleophilic group due to electron transfer along the conjugated system after separation, as described in the patent application! 9-2 tag 2! ,same!
Examples include a method of releasing PUG by cleavage of hemiacetal after detachment, as described in Work 2/9.

In addition to cases in which the coupler of the present invention has a timing group represented by the general formula (X), it also includes cases in which it has a trivalent timing group as shown below.

For example, Tokukai Akira! ? - As described in Co097g No. 0, Cp and TIME also have a bond at the non-coupling site of Cp, and even after the coupling reaction with the oxidized form of the developing agent and the subsequent reaction, Cp There is a case where and TIME have a bond. Also, special request Akira! Tar♂92
/9 issue, same o9-904t37, same j9-926j otsu issue, and same! As described in Patent No. 923!7, the case where TIME and Dye further have a bond that is not cleaved even after the coupling reaction with the oxidized form of the developing agent and the subsequent reaction is also included. In each of the above cases, Cp and Dye may further have a bond that does not cleave even after the coupling reaction with the oxidized form of the developing agent and the subsequent reaction. Alternatively, in the structure of general formula (X), such an uncleavable bond is replaced by Cp and TIM.
E and 1' IME and Dye may further have one.

Examples of the auxochrome residue represented by X include heteroatoms such as oxygen atom, nitrogen atom, or sulfur atom.

The dye residue represented by Dye has its maximum absorption wavelength shifted to the shorter wavelength side due to the auxochrome group being blocked by Cp or TIME.

These pigments include, for example, G. Fabia 7,
xTutch, Hart-q/(J, Fabian, H.

Hartmann), LightAbsorption Op Organic Colorant (LightAb
sorption of Organic Co1or
ants)”.

(Springer-
Verlag), but is not limited to these.

More desirable dyes are those that have a suitable hue when the auxochrome is dissociated.

Preferred dyes include hydroxy group-substituted aromatic azo dyes and hydroxy group-substituted heterocyclic aromatic azo dyes represented by the following general formula (XI).

General formula (X, X-Y-N; N-Z In the formula, In an atom containing at least one unsaturated bond, X
2 represents an atomic group containing at least one unsaturated bond that can be conjugated with an azo group, and the total number of carbon atoms contained in Y and Z is 70 or more.

In general formula (XI), X is preferably an oxygen atom or a sulfur atom.

In general formula (M), Y and Z are preferably aromatic groups or unsaturated heterocyclic groups. The aromatic group is preferably a #'i-substituted or unsubstituted phenyl group or naphthyl group. The unsaturated heterocyclic group is preferably a q- to 7-membered heterocyclic group having a hetero atom selected from a nitrogen atom, a sulfur atom, or an oxygen atom, and may be a benzene-fused ring. Examples of the heterocyclic group include virol, thiophene, furan, imidazole, /, 2. It-) lyazole, oxazole, thiadiazole, pyridine, indole, benzothiophene, benzimi l-7''-A/,
Or a group with a ring structure such as benzoxazole.

Y may have a substituent in addition to X and the azo group, and examples of the substituent include an aliphatic group, an aromatic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an aclaramino group, an alkylthio group, and an arylthio group. group, heterocyclic group, sulfonyl group, halogen atom, nitro group, nitroso group, cyano group, carboxyl group, hydroxyl group, sulfonamide group, alkoxy group, aryloxy group, acyloxy group, and further carbamoyl group, amino group, They are a ureido group, a sulfamoyl group, a carbamoylsulfonyl group, or a hydrazinyl group. These groups may be further substituted.

When 2 represents a substituted aromatic group or a substituted unsaturated heterocyclic group, the substituents include those listed above for YK.

When Y and Z contain an aliphatic group moiety as a substituent,
It may be substituted or unsubstituted, saturated or unsaturated, linear or branched, chained or cyclic, and has a carbon number of /~32, preferably /~20.

When Y and 2 contain an aromatic group moiety as a substituent,
The number of carbon atoms is ~IO, preferably a substituted or unsubstituted phenyl group.

In the present invention, it is preferable that the high-sensitivity layer and the medium-sensitivity layer and the medium-sensitivity layer and the low-sensitivity layer are adjacent to each other.

Further, each of the high-sensitivity layer, medium-sensitivity layer, and low-sensitivity layer may be composed of two or more layers, but is preferably a single layer.

In the present invention, the sensitivity difference between the high-speed layer, medium-speed layer, and low-speed layer can be optimized by taking into account gradation, graininess, and sharpness, but normally the high-speed layer is the medium-speed layer. compared to 0. /~/, OlogE (I2: exposure amount) is highly sensitive, and the medium sensitivity layer is 0.7~/, olog compared to the low sensitivity layer.
E: High sensitivity is preferred.

The maximum color density of the high, medium, and low sensitivity layers according to the present invention can be measured as follows.

A sample coated with a high-, medium-, or low-speed emulsion on a support is exposed to sufficient light (usually under clear daylight for at least 7 minutes) and subjected to the color development process described in 3. Do it with roc.

After processing, this sample was measured with a Macbeth densitometer for status M.
Measure the concentration using a filter.

On the other hand, in the case of a color photographic light-sensitive material on which multiple photographic emulsion layers have been coated, each layer is separated (peeled) after being exposed to light and color developed under the same conditions as above to reduce the density of these layers. Measure in the same manner as above.

Color development 6 minutes 30 seconds Bleached white 6 minutes 30 seconds Water Washing - minutes/θ seconds Fixed Arrival 9 minutes - 0 seconds Wash with water for 3 minutes/! seconds Stable / minute θ! seconds The composition of the treatment liquid used in each step was as follows.

Diethylenetriaminepentaacetic acid /, θg/-hydroxyethylidene/l l-diphosphonic acid 2.0g Sodium sulfite da, θg Potassium carbonate
3theta,og potassium bromide
/, 41g potassium iodide
/ , jmg hydroxylamine sulfate
2.4tg Goo (N-ethyl-N-β-hydroxyethylamino)-2-methylaniline sulfate 4t, 6g water added /, 01 pH 10,0 Bleach solution Ethylenediaminetetraacetic acid ferric ammonium salt /θ0. θg Ethylenediaminetetraacetic acid second sodium salt 10.0g ammonium bromide /! 0,0g ammonium nitrate Add 10.0g water
/・01pHt,.

Fixer Ethylenediaminetetraacetic acid disodium salt /, 0g Sodium sulfite 9.0g Ammonium thiosulfate aqueous solution (70%) / 7 r, Om
l1 Sodium bisulfite, add 6g water /, 01pHΔ,
Otsu stable liquid E/L/Mariy (4tOqb) 2.0ml
Polyoxyethylene-p-monononylphenyl ether (average degree of polymerization K/θ) 0.3 g with water added /, θ1 In the present invention, the silver/coupler ratio in the high-speed layer (color image forming coupler 1
The number of moles of silver halide per mole is suitably about 5 to 30θ, but in the case of a back-sensitive layer, it is preferably /θ to /
θo1 More preferably 20~! 0, and in the case of a green-sensitive layer or a red-sensitive layer, the angle is preferably 30-200°, more preferably 90-/! θ. The silver/coupler ratio in the medium speed layer is between 2 and 10 θ, but in the case of a blue sensitive layer it is preferably between co and 1.10. More preferably 2~
20, preferably in the case of a green-sensitive layer or a red-sensitive layer! ~10Q1 more preferably! ~! It is 0. The silver/coupler ratio in the low sensitivity layer is 7~! In the case of a blue-sensitive layer, θ is preferably 7 to . 20, more preferably /.

! -10, and in the case of a green-sensitive layer or a red-sensitive layer, preferably 3-! 0, preferably 3 to 3θ.

In the photographic emulsion layer of the photographic light-sensitive material used in the present invention, any silver halide including silver bromide, silver iodobromide, silver iodochlorobromide, silver chlorobromide, and silver chloride may be used. Preferred silver halides are silver iodobromide or silver iodochlorobromide containing up to 30 moles of silver iodide. Particularly preferred is silver iodobromide containing from λmolti to 2tmol% silver iodide.

The silver halide grains in the photographic emulsion may be so-called regular grains having a regular crystal structure such as a cube, octahedron, or dodecahedron, or may have an irregular crystal shape such as a spherical shape. It may be one with crystal defects such as twin planes or a composite form thereof.

The grain size of the silver halide may be fine grains of 7 microns or less, or large grains with a projected area diameter of up to 10 microns, and may be a monodisperse emulsion with a narrow distribution or a polydisperse emulsion with a wide distribution. good.

The silver halide photographic emulsion that can be used in the present invention can be produced by a known method, for example, as described in Research Disclosure (
RD), Melon/7 Otsu 113 (/97/72) 1.2
．． 2~=3 pages, “■, Emulsion production (Emulsion p
``reparation and types)'' and the same, ya/♂7it (/97 year//month), fu4t/
You can follow the method described on page.

The photographic emulsion used in the present invention is described in "Physics and Chemistry of Photography" by Grafkide, published by Beaumontel (P.

Glafkides, Chimie et Phy
siquePhotographique Paul
Montel, /914;7), "Photographic Emulsion Chemistry" by Du Huynh, published by Focal Press (G, F, Du
ffin, Photographic Emulsio
n Chemistry (Focal Press,
``Production and Coating of Photographic Emulsions'' by Zelikman et al., published by Focal Press (V, L, Zeli
kmanet at, Making and Coa
tingPhotographic Emulsion
, Focal Press.

/9≦4t). That is, any of the acidic method, neutral method, ammonia method, etc. may be used, and the methods for reacting the soluble silver salt and soluble halogen salt include one-sided mixing method, simultaneous mixing method,
Any combination thereof may be used. It is also possible to use a method in which particles are formed in an excess of silver ions (so-called back-mixing method). As one form of the simultaneous mixing method, a method in which the pAg in the liquid phase in which silver halide is produced can be kept constant, that is, a so-called Chondrald double jet method can also be used. According to this method,
A silver halide emulsion with a regular crystal shape and nearly uniform grain size can be obtained.

Two or more types of silver halide emulsions formed separately may be mixed and used.

The silver halide emulsion consisting of the regular grains described above can be obtained by controlling pAg and pH during grain formation. For more information, please see Photographic Science and Engineering.
5science and Engineering) Volume 6, /j 9~/j 3 pages (/912): Journal op Photographic° Scie/x (Jou
rnal of Photographic 5ci
ence), /2 volumes, 2 pages ~ 2j/page (/64t)
, U.S. Patent No. 3. tjj.

No. 39q and British Patent No. 1,4t/J, 74t♂.

Furthermore, as a monodisperse emulsion, the average grain diameter is approximately θ.

Silver halide grains larger than 7 microns, at least 9! Emulsions in which the weight percent is within θ of the average grain diameter are typical. Average particle diameter is 0.2! ~λ microns, at least 9! Weight Ji% or quantity is at least 9! The average grain diameter of the silver halide grains is
Emulsions such as those falling within the range of Methods for preparing such emulsions are described in U.S. Pat.
No. 4, No. 3, AJ-6, 394 and British Patent No. 7°4t/3,7'lr.

Also, Japanese Patent Publication No. 4T, R-2600, J/-39027
Same issue! /-r3097, j3-/37/33,
same! q-gu♂32/issue, same j&-994t/wa issue, same 3
? -3743j, same j? Monodisperse emulsions such as those described in No. 4t993/ etc. can also be preferably used in the present invention.

Further, tabular grains having an aspect ratio of j or more can also be used in the present invention. Tabular grains are described by Gatoff, Photographic Science and Engineering (
Cutoff, Photographic Science
CE and Engineering), Volume 74, 2nd Edition. ~2!2 pages (7920): U.S. Patent No. G.

3g, 2g, 4t, 3/θ, 4t
, 4t33.0417, sameq, g39. ! 2θ and British Patent No. 2. It can be easily prepared by the method described in, for example, No. 2,717. The use of tabular grains has advantages such as improved color sensitization efficiency by sensitizing dyes, improved graininess, and increased sharpness, as disclosed in the above-cited US Patent No. DA.

It is described in detail in No. 4t311.22A.

The crystal structure may be uniform, with the inside and outside having different halogen compositions, or it may have a layered structure. These emulsion grains are described in British Patent No. 1. θ27. Hara, U.S. Patent No. 3. ! Q! , θ6? No., same group, g4t4
t, /77 issue and special request! ! -211r'lt No. 9, etc.

Further, silver halides having different compositions may be joined by epitaxial joining, and for example, silver halides, rhodan silver,
It may be bonded with a compound other than silver halide, such as lead oxide. These emulsion grains are described in U.S. Patent No. G,094
t, 4/4 issue, rotation, /412.900 issue, same 4t,'
tj9.3!3, British Patent No. 1, θJ/, No. 792,
U.S. Patent No. 3419, No. 22, Ibid.
, Gua ♂ issue, same da.

4t 33.601, 4t, 4t 3.077, 3, Otsu! Otsu, No. 9E, 3. ! ! Ko, No. 062, Tokukai Sho! It is disclosed in War/Otsu 2!410, etc.

Also, mixtures of particles of various crystal forms may be used.

The emulsion of the present invention is usually used which has been subjected to physical ripening, chemical ripening and spectral sensitization. Additives used in such processes are Research Disclosure A/7
T 473 and A/J' 7/B, and the relevant parts are summarized in the table below.

Known photographic additives that can be used in the present invention are also listed in the two Research Disclosures mentioned above, and their locations are shown in the table below.

Various color couplers can be used in the present invention, specific examples of which can be found in the above-mentioned Research Disclosure (
RD) A/7. g4tj, ■-C-G. As dye-forming couplers, couplers that give the three primary colors (i.e., black, magenta, and cyan) in subtractive color development are important.Specific examples of diffusion-resistant g-equivalent or 2-equivalent couplers include the aforementioned RD/2-equivalent couplers.
In addition to the couplers described in the patents listed in Sections 7a4t3, 1-C and D, the following can be preferably used in the present invention.

A representative example of the yellow coupler that can be used in the present invention is a hydrophobic acylacetamide coupler having a pallast group. A specific example is US Patent No. 2.
07, 2/θ issue, same issue.

No. 776.0J-7 and No. 3.2Aj, No. 601°, etc. The use of a two-hit yellow coupler is preferred for the present invention, as described in US Pat. No. 3.4t07,1.
9'1 No. 31, Gugu No. 2, 9J♂, No. 3. ri33
, No. 601 and the same No. G, θ22゜1.20, etc., the oxygen atom separation type yellow coupler or Tokko Sho! Z-1073, US Patent No. &, 4tO/
, No. 762, No. 326.024, RDi,
ror3 (/979Q), British Patent No. 1, '72
! , No. 020, West German Application Publication No. 2,2/2, No. 977, No. 2. Coro/13 No. 7, No. 2,329.677
Typical examples thereof include the nitrogen atom separation type yellow couplers described in No. 1, No. 2 and No. 2゜4t33.272. α-pivaloylacetanilide couplers have excellent color fastness, especially light fastness, while α-benzoylacetanilide couplers provide high color density.

The magenta coupler that can be used in the present invention is preferably a hydrophobic indacylon or cyanoacetyl coupler having a pallast group! - Pyrazolone and pyrazoloazole couplers may be mentioned. ! -Pyrazolone couplers are preferably those in which the 3-position is substituted with an arylamino group or an acylamino group from the viewpoint of the hue and color density of the coloring dye.
3//, 0♂ko issue, 2,34t3.703, 2,600,7? No. ♂, No. 2. Ri0♂,! No. 23, same No. 23, ? , 01.2, Otsu! No. 3, same No. 3. /! Ko,
♂ri No. 6 and same No. 3,93≦, θ/! It is written in the number etc. As the leaving group for a two-equivalent j-pyrazolone coupler, U.S. Pat.

The nitrogen atom leaving group described in No. O/R or U.S. Patent No. 4t, 3! /,? The arylthio group described in No. 97 is particularly preferred. It also has a pallast group as described in European Patent No. 73゜<J4! - Pyrazolone couplers provide high color density. As a pyrazoloazole coupler, U.S. Patent No. 3, ? J? , /79, preferably U.S. Pat. No. 3.7.
26.0g Pyrazolo(j+/-C)C described in No. 2
/1'r'') Triazoles, Research Disclosure Co4t220 (/9dog year g month) and pyrazolotetrazoles and Research Disclosure 14t23 described in JP-A-60-3363.2
0 (/ri♂ri year ni month) and JP-A-30-4134! Examples include pyrazolopyrazoles described in No. Imidazo (/, z) described in U.S. Pat.
-b: ] pyrazoles are preferred, European Patent No. 1/9
,,! ! 'Pyrazolo C'+"]C' described in No. 0J
+'+g]triazole is particularly preferred.

Cyan couplers that can be used in the present invention include hydrophobic, diffusion-resistant naphthol and phenolic couplers, preferably the naphthol couplers described in U.S. Pat. y, θJ'2
．． Co/No. 2, same No. G.

/4t No. 13 No. 6, No. 9, No. 2 J', No. 233 and No. 47. ．． 29t, No. 200, a two-equivalent naphthol coupler of the oxygen atom separation type is mentioned as a representative example. Further, specific examples of phenolic couplers are described in U.S. Patent No. 2.3t9. No. 29, No. 2. ♂0/ ,1
No. 77, No. 2,772,162, No. C, F9,
It is written in ♂2 Otsu No. etc.

Cyan couplers that are stable against humidity and temperature are preferably used in the present invention, and a typical example thereof is as described in U.S. Pat. Phenolic cyan coupler having U.S. Pat. No. 2,772,162;
Same number 3.7! ! .

No. 30, No. 3, /26, No. 30, No. 3, No. 3, No. 30, No. 30, No.

334t, 0! ! No. Q, No. 3.27.173,
West German Patent Publication No. J, 329.729 and European Patent No. 12/, 3 O! λ written in the issue etc.,! -Dianruamino-substituted phenolic couplers and U.S. Patent No. 3
, 4t4t4.622, same number 9,333.999,
Same thing, Gu! /, J-39 and the same No. G, G27, 2
It has a phenylureido group at the 11th position as described in No. g7 etc. and! These include phenolic couplers having an acylamino group at the -position.

In order to correct unnecessary absorption of color pigments, it is preferable to perform masking by using a colored coupler in combination with a color photosensitive material for photographing. Yellow-colored magenta couplers described in U.S. Patent No. 733.620 and Japanese Patent Publication No. 3947/3, or U.S. Patent No. 929
No. 3, No. 3, No. 23t and British Patent No. 1
Typical examples include the magenta-colored cyan couplers described in , /4t4, J6♂, and the like. Other colored couplers are RD/7 t<<t
3. Described in sections ① to G.

Granularity can be improved by using a coupler in which the coloring dye has an appropriate diffusibility. Such a coupler is
U.S. Patent No. 9,3g Otsu, 237 and British Patent No. 2
,/2! , No. 370 contains a specific example of a magenta coupler,
Also, European Patent No. 96,370 and West German Application Publication No. 3
．． 23'l, No. 633 describes specific examples of yellow, magenta or cyan couplers.

The dye-forming couplers and the special couplers described above may form dimers or more polymers. Typical examples of polymerized dye-forming couplers are described in U.S. Patent No. 3. Gu! /,♂2
No. 0 and No. +tlO♂0゜2! ! listed in the number. Specific examples of polymerized magenta couplers are described in British Patent No. 2,102,173 and U.S. Patent No. 9,3.
It is listed in the 2nd issue.

Couplers that release photographically useful residues upon coupling are also preferably used in the present invention. The DIR coupler that releases the development inhibitor is q3, ■
The patent couplers listed in Sections .-F. are useful.

Preferred in combination with the present invention is JP-A-7-
Developer deactivated type represented by /j/9K<; US Patent Nos. /12
Timing type represented by No. 34; patent application Shoj9-39
The reaction represented by No. A63 is particularly preferred. 7-/! /9 daq issue, same j,! '-, 2/
79J', l! No., patent application No. Shoj9-7j4t7￥, same 5
9-22+27q issue, same j9-/2.2/4 issue and same J? -Developer deactivated type D described in No. 904tjr etc.
These are IR couplers and reactive DIR couplers described in Japanese Patent Application No. 1997-39, <33, etc.

Suitable supports that can be used in the present invention include, for example, the above-mentioned R
D= 16.77 t<g3, 2/page and the same, ya/e
! 7/4 64t page 7 6g from the right column? It is written in the left column of the page.

The color photographic material according to the present invention includes the above-mentioned RD,
&/7 Otsu 4t3, pages 2/-29 and the same, ya/17/6
6! / It can be developed by the usual methods described in the left column to right column.

The color photographic material of the present invention is usually subjected to a water washing treatment or a stabilization treatment after development, bleach-fixing or fixing treatment.

In the washing process, it is common to use countercurrent washing in tanks larger than one to conserve water. For stabilization treatment, use Tokukaisho instead of the water washing process! 2-♂! A typical example is a multistage countercurrent stabilization treatment as described in No. 3 of the present invention. In the case of this process, 2 to 9
A countercurrent surface of the tank is required. Various compounds are added to this stabilizing bath for the purpose of stabilizing images. For example, various buffers (e.g., borates, metaborates, borax, phosphates, carbonates, potassium hydroxide, sodium hydroxide, aqueous ammonia) to adjust the membrane pH (e.g., pHj~/) Typical examples include carboxylic acids, dicarboxylic acids, polycarboxylic acids, etc.) and formalin. In addition, water softeners (inorganic phosphoric acid, aminopolycarboxylic acid, organic phosphoric acid, aminopolyphosphonic acid, phosphonocarboxylic acid, etc.), disinfectants (
benzisothiazolinone, isothiazolone, 9-thiazolinebenzimidazole, halogenated phenol, etc.)
Various additives such as surfactants, fluorescent whitening agents, and hardening agents may be used, and two or more compounds for the same or different purposes may be used in combination.

In addition, ammonium chloride-'7m is used as a pH adjusting agent after treatment. It is preferable to add various ammonium salts such as ammonium 12 ammonium, ammonium sulfate, ammonium phosphate, ammonium sulfite, and ammonium thiosulfate.

The present invention can be applied to various color photosensitive materials. Typical examples include color negative film for general use or movies, and color reversal film for slides or television. The present invention can also be applied to black-and-white light-sensitive materials using a mixture of three color couplers as described in Research Disclosure 2-/ri/co-3 (July 7/2012).

Example/In order to demonstrate the effectiveness of the present invention, a multilayer color photosensitive material sample /θ/ having the composition shown below was prepared on an undercoated triacetyl cellulose film support.

Coating weights are expressed in g/m2 per silver for silver halides and colloidal silver, and in g/m2 for couplers, additives and gelatin, and the same for sensitizing dyes. Silver halide in one layer 1
Expressed in moles per mole.

(Sample/θ/) 1st layer (antihalation layer) Black colloidal silver 0. / Gelatin 7.3 Colored coupler C-/ ,,,, 0.0 as ultraviolet absorber UV-/
・・・・・・ 0. / Same as above UV-2...0.
2 High boiling point organic solvent HBS-/...0.0/same
HBS-2・ ・ ・ θ, 0/0th/(
(intermediate layer) Gelatin... /, θ coupler C-x... 0.02HBS-7.
... θ, / 3rd layer (first red-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide! Molch average grain size θ, tμ) ... /, / gelatin
・・・・／、Otsu sensitizing dye I
... 2X/Q-4 same ■
・ ・ ・ ・ Otsu X10-4 same ■
・ ・ ・ ・ −×/θ-5 coupler C-3
...0.30 Coupler C-ta...0.0 Coupler C-2...0. θ2 HBS-/ ・ ・ ・ ・
o, /9 qth layer (first red-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 6 mole average grain size 0.7 μ) ...0.90 Gelatin ... /, 0 increase Sensitive pigment■
.../, j×70-4 same ■
・ ・ ・ ／ , ! ×10-4 same ■
・ ・ ・ ・ /X/Q-5 coupler
C-t... o, /3 coupler C-2
...0.0gco HBS-/ ...o, ott evening HBS
-, z ----o, oq.

5th layer (middle layer) Gelatin... /, θ,! −
D-t-octylhydroquinone ・ ・ ・ θ, θ31
i B S -/ ・ ・ ・ ・
θ, 10 6th layer (first green-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 3 molar average grain size 0.g μ) ...0.3 Sensitizing dye ■ ...! , O×10-4 same ■
・ ・ ・ 2.0×70-4 same ■
・ ・ ・ 0.3×70-4 gelatin
・・・・／・θ coupler C-t
...0.2 coupler C-7...
0.03 Coupler C-7...0,03 HBS-/...05147 layer (second green-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide y molar average grain size 0.!μ ) ...0. 0 gelatin
... /, θ sensitizing dye■
・・3×IQ-4 same ■
・ ・ ・ 2×10-4 same ■
・ ・ 0, 3×70-4 coupler C
-t... θ, 02! Coupler C-/
... θ, θ3 coupler C-ar
...0. θノ! Coupler C-7...
0.03HBS-7・ ・ ・ ・ θ , 20
No.? Layer (third green-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 6 mole chronic average grain size 0.2μ) ... θ, /! gelatin
... /, 0 sensitizing dye ■
...3. ! ×10 4 sensitizing dye■...
・/、G×10-4 coupler C-9...0.0I C-/θ...0,0/ C-//...0.0♂ C-7... 0.02 C-/; ...θ, θkoHBS-/ ...0,10HB
S-2・ ・ ・ ・ 0.0! 9th layer (yellow filter single layer) Gelatin...7.2 Yellow colloidal silver...0.0♂2,! -G-t-
Octylhydroquinone ・ ・ ・ ・ 0. /
HBS-/ ・ ・ ・ ・
0.3 70th layer (7th blue-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 2 molar, average grain size 0.3μ) ...0.4t Gelatin ... /, θ increase Sensitive pigment■
...Kome 10-4 coupler~C~73
...0. Ta coupler C-7...0.0
7 HBS-/ 0.2 1st
/ layer (first green-sensitive emulsion layer) Silver iodobromide (molar ratio to silver iodide, average grain size /, jμ) ... o, r gelatin ... 0. Core sensitizing dye■
.../X10-4 coupler C-/3
...θ, 2! HBS-/
---・o, o7 12th layer (first protective layer) Gelatin... θ, male ultraviolet absorber UV-/...0. / Same as above UV-co
...Ol, 2 HBS-/ ...0.0/HBS
-Co...θ, 0/0th/layer (2nd
Protective layer) Fine grain silver bromide (average grain size 0.02μ) ・ ・ ・ ・ O,! Gelatin...O, ugh! Polymethyl methacrylate particles (diameter/, tμ)...0.2 Hardener H
-7...0. In addition to the above components, a surfactant was added to each layer as a coating aid. Sample 10 was prepared as above.
/.

Through the first layer, second layer and second layer of this sample 70/!
Juto! J acetyl cellulose film support, and the maximum magenta color density (using a green filter) of the 6th layer was measured using the density measurement method described above.
The values were as shown in the table.

(Samples 702 to 10≦) Samples /θ/ were washed and subjected to the color development process (
3 minutes/! The coating amount of the coupler and high-boiling organic solvent, the grain size of the silver halide, and the degree of chemical sensitization are controlled so that the gradation at After making appropriate adjustments, 10 g of sample/θ was prepared.

These samples were passed through a stepped wedge for RMS granularity measurement to determine the maximum color density. Among the processes described above, the color development process time was changed to 3 minutes/! instead of 6 minutes and 30 seconds.
Color development was carried out in the same manner except that the time was changed to seconds. μ
From magenta capri density to 0.
The RMS at 2 higher concentrations was measured. The results obtained are shown in Table 1.

From the results in Table 1, the RM of samples 10/-101 of the present invention
The S value is significantly smaller than that of the comparison sample 10 and /θ6, which is outside the range of the maximum color development 4 degree value specified in the present invention. It is clear that the graininess is improved.

Next, the chemical structural formulas or chemical names of the compounds used in the present invention are shown below: UV-/x/y=2/3 (weight ratio) UV-, 2 HBS-/tricresyl phosphate HBS-, 2 phthalate Dibutyl acid C-/〈 [C-,? C-r ■ H2 C(CHa)a C-/ -10 H3 H-/ Sensitizing dye■ Sensitizing dye■ Sensitizing dye■ (CH2)3S03Na Sensitizing dye■ Sensitizing dye■ 2H5 Sensitizing dye■ Sensitizing Dye■ Sensitizing dye■ Sensitizing dye■ Example 2 (Sample 20/) A sample was prepared in the same manner as Sample 10/, except that the fifth layer, seventh layer, and male layer of Sample 10/ were changed as shown below. 20/ was created.

3rd layer (first green-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide 2 molar average grain size θ, 3μ) ...0.3 gelatin
... /, 0 sensitizing dye ■
... j×10-4 same ■
・ ・ ・ ・ Same as comment 10-4 ■
・ ・ ・ ・ 3×IQ-5 coupler C-
t...O, co-coupler C-7...
...0.03 Coupler C-/ ...0.03HBS
-7...0. E Second layer (second green-sensitive emulsion layer) Silver iodobromide emulsion (silver iodide!Molar coefficient average grain size o, tμ) ...0.4t! Gelatin sensitizing dye ■・・・1. ! X10-4 same h
■ ・ ・ ・ ・ 2.2 ×
70-4 Same as above ■ ・・・0.3×/θ-4
Coupler C-t...0.27 Same as above
C-/ ・0.03 Same as above C-
♂ ...0.0/7 Same as above C-7...
・0.03 Same as above HBS-/... θ, 1st layer (
3rd green-sensitive emulsion layer) Processed emulsion (silver iodide otsu morchi average grain size 0.7! μ) ...0.90 gelatin
... /, 3 sensitizing dye ■
...3.7X/θ-4 times higher ■ .../
, j×/θ-4 coupler C-51...0.0! Same as above C-1o...0.0//Same as above C-//...0.0? Same as above C
-/...0.02 Same as above C-/ko...0.0koHB S -/
・・・・θ, 10HBS-2・ ・ ・ ・ 0
．． 0! (Sample Co θ Co - Co θ Sample 20/) /j seconds) so that the gradation is linear (the sensitometric curve is a straight line), the coating amount of the coupler and high-boiling organic solvent, the grain size of the silver halide, and the chemical sensitization are controlled. Adjust the degree appropriately and prepare the sample, 202~
20! It was created.

These samples 20/-20j were exposed to light through a pattern for MTF measurement, and subjected to the aforementioned 3 minute/evening second color development process. Co/mm at a density 0.9 higher than the capri density of magenta! Calculate the MTF value in the cycle,
It is shown in Table 2.

Also, these samples 20/~20J- have a color temperature of 2? s<t
Sample (A) subjected to imagewise exposure using a tungsten light source with a filter color density adjusted to y, roooK, and sample (B) further subjected to imagewise exposure via a green filter BPN-r3. Regarding the aforementioned 3 minutes/! A second color development process was performed.

The magenta turnip IJ of sample (A) is 0. /When the exposure amount for high density is corrected so that the exposure amount is the same as the magenta capri density of sample (B), /the density is 0.9 higher than the magenta capri density of sample (A). Let DG be the magenta density of sample (B) at the exposure amount of (D'c). ΔG=1) Calculated as G-D oG,
It is shown in Table 2.

From Table 2, MTF of sample-0/~ko θ3 according to the present invention
A sample whose value is outside the specifications of the present invention - 〇Riya10! Since the sample of the present invention is smaller than that of the sample θ9 or 20!
It is clear that the sharpness is better than that of .

Further, ΔG in Table 2 means the difference between gray and green colored objects in color photography, and the larger the value, the higher the brightness of the green colored object. 07-20
Since the value of ΔG of Sample No. 3 is larger than that of samples 20g and XOS, it is clear that the sample of the present invention has better color reproducibility than samples Cog θg and 20j.

(Effects of the Non-Invention) As is clear from the results in Tables 1 and 2 above, the present invention significantly improves graininess, sharpness, and color reproducibility.

Patent applicant: Fuji Photo Film Co., Ltd. 1985//
clothes／／day

Claims (1)

[Claims] A color photographic light-sensitive material comprising at least three layers, a low-sensitivity silver halide emulsion layer having blue sensitivity, a medium-sensitivity silver halide emulsion layer, and a high-sensitivity silver halide emulsion layer, coated on a support in this order from the side closest to the layer. or a color photographic light-sensitive material comprising at least three layers, a low-sensitivity silver halide emulsion layer, a medium-sensitivity silver halide emulsion layer, and a high-sensitivity silver halide emulsion layer having green sensitivity, coated in this order from the side closest to the support. In the
A color photograph characterized in that the high-speed emulsion layer gives a maximum color density of 0.3 or less, and the medium-speed emulsion layer and the low-speed emulsion layer both give a maximum color density of 0.8 or more. photosensitive material.