JPH0321948A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain a superior masking effect accompanied by small deterioration of sensitivity by incorporating a specified masking coupler in an emulsion layer. CONSTITUTION:At least one silver halide emulsion layer contains the masking coupler represented by formula I in which Coup is a coupler residue; J is a divalent linking group combined with the active site of the coupler; het is an O or S atom; and Ar is an arylene group, thus permitting deterioration of sensi tivity to be restrained and a superior masking effect to be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a silver halide color photographic material containing a novel masking coupler.

[Background of the Invention] Usually, in a silver halide color photographic light-sensitive material, a color image is produced by combining an aromatic primary amine color developing agent with an oxide of a color developing agent produced by reducing exposed silver halide grains. It is formed by oxidative coupling between yellow, magenta, and cyan dye-forming couplers present in the vicinity of silver halide grains.

Since the dye images thus formed have undesirable absorption, colored compounds are usually used as masking couplers in color negative light-sensitive materials to correct the undesired absorption of magenta and cyan dye images. Colored magenta couplers and colored cyan couplers are used.

For example, a colored cyan coupler is a dye that absorbs green and blue light, but when it is oxidatively coupled with a color developing agent oxide, it forms a cyan dye, and depending on the degree of oxidative coupling, the colored cyan coupler has Loss the ability to absorb green and blue light. This will keep the undesired absorption of green and blue light in the cyan dye image constant and will correct for the undesired absorption in the cyan dye.

Since these methods add a colored compound to the photosensitive layer, some of the incident light that would otherwise sensitize the silver halide is absorbed, resulting in a decrease in sensitivity.

To solve this problem, a type of coupler (post-mask) has been proposed that is essentially colorless when mixed into a color photosensitive material and then forms a colored mask in the development process.

U.S. Pat. No. 4,555,477 discloses that a chelating agent is substituted at the coupling position of the coupler, and the coupling reaction releases the chelating agent that can flow into the processing liquid.
A masking method has been disclosed in which the released chelating agent is discharged into a processing solution and then treated with a processing bath containing a heavy metal, thereby forming a chelate dye from the remaining coupler in the form of a positive image.

Furthermore, Japanese Patent Application Laid-Open No. 83-75747 discloses that a leuco dye is substituted at the coupling position of a coupler, and a leuco dye that can flow out into a processing solution is released by a coupling reaction.
A masking method in which the released leuco dye is drained into a processing solution and then treated with a red blood salt bleaching solution to oxidize the leuco dye substituted at the coupling position of the remaining coupler to form a masking dye in the form of a positive image. is disclosed.

Although these two methods are certainly excellent in that there is no decrease in sensitivity, they require the leaving group to have a ligand or leuco dye, which limits the range of choices for the leaving group, and as a result, It has drawbacks such as low ring activity and the need for special processing steps.

Further, JP-A-64-52148 discloses a coupler in which a leaving group containing a formyl group is substituted at the coupling position. This coupler can be said to be an excellent method because it does not cause a decrease in sensitivity and does not require any special processing because it reacts with a color developing agent to form a masking dye.

However, the silver halide color photographic light-sensitive materials using the compounds described in this publication were still insufficient in terms of sensitivity and masking effect.

[Object of the Invention] The first object of the present invention is to provide a silver halide color photographic light-sensitive material using a masking coupler that exhibits little reduction in sensitivity.

A second object is to provide a silver halide color photographic material using a masking coupler with excellent masking effects.

[Structure of the invention]

The above object of the present invention is to provide a silver halide color photographic light-sensitive material having at least one silver halide emulsion layer on a support, in which at least one of the silver halide emulsion layers has a compound represented by the following general formula [I]. This was achieved by a silver halide color photographic light-sensitive material characterized by containing a masking coupler.

General formula [1] Coop - J - h et - Ar -
CHO [In the formula, Coup represents a coupler residue, and J represents a divalent linking group bonded to the active site of the coupler. het represents an oxygen or sulfur atom, and Ar represents an arylene group. ] Next, the compound represented by the general formula [I] will be explained.

The coupler residue represented by Coup is generally a yellow coupler residue, a magenta coupler residue, a cyan coupler residue, or a coupler residue that does not substantially form an image dye, and is preferably represented by the following general formulas [1 a] to [ Ih
] It is a coupler residue represented by.

Below are the blanks General formula [I a] General formula [Ibl R3 General formula [Icl General formula [1d] General formula [I el General formula [1 fl General formula [1g] General formula [1hl nlJ In the above general formula [1 a]] , R represents an alkyl group, an aryl group, or an arylamino group, and R2 represents an aryl group or an alkyl group.

In the above general formula [1 b], R represents an alkyl group or an aryl group, and R4 represents an alkyl group, an acylamino group, an arylamino group, an arylureido group, or an alkylureido group.

The above general formula [! C], R4 has the same meaning as R4 in general formula [Ib], and R5 represents an acylamino group, a sulfonamide group, an alkyl group, an alkoxy group, or a halogen atom.

In the above general formulas [1d] and [Ie], R6 represents an alkyl group or an aryl group, and R7 represents an alkyl group, an aryl group, an acylamino group, an arylamino group, an alkoxy group, an arylureido group, or an alkylureido group.

In the above general formula [1 fl, R8 is a halogen atom,
It represents an alkyl group, an alkoxy group, an acylamino group, or a sulfonamide group, and R represents an acylamino group, a carbamoyl group, or an arylureido group.

In the above general formula [Ig], R9 has the same meaning as in general formula [1f], and Ri0 represents an amino group, a substituted amino group, an amide group, a sulfonamide group, or a hydroxyl group.

In the above general formula [1 h], R,, is a nitro group,
Represents an acylamino group, a succinimide group, a sulfonamide group, an alkoxy group, an alkyl group, a halogen atom, and a cyano group.

In addition, in the above general formula, g in [I cl is O to 3, and n in [1 f] and [Ih] is O to 2
, m in [Ig] represents an integer from 0 to 1, 2,
When n is 2 or more, each R, , R8 and R. may be the same or different.

Each of the above groups includes those having a substituent, and preferred substituents include a halogen atom, a nitro group, a cyano group, a sulfonamide group, a hydroxyl group, a carboxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted alkyl group. alkoxy group,
In addition to a carbonyloxy group, an acylamino group, a substituted or unsubstituted aryl group, examples include those containing a portion of a coupler constituting a so-called bis-type coupler or a polymer coupler.

J represents a divalent linking group.

The divalent linking group is not particularly limited and can be various groups, but one consisting of an atomic group substituted at the active site of the coupler component by -0--S--N< is preferred.

Examples of the linking group substituted by 101 at the active site of the coupler component include an arylenesulfonylaryloxy group, an arylenesilponyloxy group, a carbonylalkoxy group, and a carbonylalkylamidoaryloxy group.

Further, examples of the linking group substituted at the active site of the coupler component by 1S1 include arylenethio group, arylene heterocyclic thio group (e.g. arylenetetrazolylthio group), carbonylarylenethio group, carbonylalkylenethio group, Examples include alkylenethio groups.

The linking group substituted by -N< at the active site of the coupler component includes, for example, a heterocyclic group (eg, imidazolidine 2,4-dione-3,5-diyl, imidazolidine-5-diyl).

These linking groups also include those having further substituents.

Substituents include halogen atoms (e.g. chlorine, bromine),
Hydroxyl group, nitro group, cyano group, carboxyl group, alkyl group (straight chain or branched alkyl group such as methyl, ethyl, t-butyl, t-amyl, dodecyl, octadecyl, etc.), alkoxy group (methoxy, putoxy, dodecyloxy etc.), alkylcarbonylamino groups (e.g. undecyl luponylamino group), arylcarbonylamino groups (e.g. penzoylamino group), alkylsulfonamide groups (e.g. dodecylsulfonamide group)
, arylsulfonamide group (e.g. benzenesulfonamide group), alkylaminosulfonamide group (e.g. dimethylaminosulfonamide group), arylaminosulfonamide group (e.g. anilinosulfonamide group),
Alkyl carbamoyl group (e.g. hexadecyl carbamoyl group), aryl carbamoyl group (e.g. phenyl carbamoyl group), sulfonyl group (e.g. methylsulfonyl group), alkyloxy carbonyl group (e.g. dodecyloxy carbonyl group), aryloxycarbonyl group (
For example, phenoxycarbonyl group) and the like can be mentioned.

The arylene group represented by A' is preferably a phenylene group or a naphthylene group, and the arylene group is one C.HO
It also includes those having other substituents.

Examples of these substituents include those exemplified as the substituent for J above.

Specific examples of couplers represented by general formula [1] are listed below, but the present invention is not limited to these couplers.

Below margin (1) Cσ (5) 1. :tl(J (l3) 0H (lO) (1i) 0H (t2) On (l6) Examples of synthesis of couplers represented by general formula [I] are shown below.

Synthesis Example 1 [Synthesis of Exemplified Compound 3] Synthesis Scheme (1) (2) H (3) (4) (5) Dissolve 80 g of HCI (1) in 150 ml of acetic acid, and add bromine 2
8 g was slowly added dropwise at room temperature. After dropping, leave it as it is 3
Stir for an hour. The solvent was distilled off under reduced pressure, and the residue was recrystallized from methanol to obtain (2) 83sr.

(Yield 77%) Next, 30 g of (2) was added to 200 g of dimethylformamide.
ml, added 28 g of (3), and reacted at 60°C for 4 hours. The reaction solution was poured into ice water and neutralized using hydrochloric acid to precipitate crystals. The precipitated crystals were collected by filtration and recrystallized with acetonitrile to obtain 37 g of (4). (yield
83%) Next, 48 g of (5) was dissolved in 5 Q Q mt of acetone, 15 g of potassium carbonate and 35 g of (4) were added, and the mixture was heated under reflux for 8 hours. Insoluble materials were removed by filtration, and the reaction solution was concentrated under reduced pressure. Methanol 3 (10 ml) was added to the residue, concentrated hydrochloric acid 5 ml was added, and the mixture was stirred at 40°C for 1 hour.

The reaction solution was concentrated under reduced pressure, and the residue was recrystallized from an acetic acid ethylulohexane mixed solvent to obtain 383 g of the target exemplary compound. (Yield 79%) The structure of the target product was identified by Mass and NMR spectra.

Synthesis Example 2 [Synthesis of Exemplified Compound 14] Synthesis Scheme (6) (7) -> Exemplified Compound 14 40. Dissolve (6) in 500 ml of acetone,
β-merkabutopropionic acid 9g and potassium carbonate 14
g was added thereto, and the mixture was heated under reflux for 3 hours. Filter off insoluble matter,
The solvent was distilled off under reduced pressure, and the residue was recrystallized from acetonitrile to obtain 37 g of (7).

(Yield 80%) Next, 35 g of (7) was dissolved in 500 ml of benzene, 3 g of triple oroacetic anhydride and LL g of (8) were added, and the mixture was reacted at room temperature for 4 hours. The solvent was distilled off under reduced pressure, and the residue was recrystallized from a mixed solvent of ethyl acetate and n-hexane.
The target exemplary compound 14 ae, was obtained. (Yield 76%) The structure of the target product was identified by MS and NMR spectra.

Below is a margin Synthesis Example 3 [Synthesis of Exemplified Compound 11] Synthesis Scheme (9) 1> Dissolve 50 g of Exemplified Compound 11 (9) in 500 ml of benzene,
3 g of trifluoroacetic anhydride and 12 g of (8) were added and reacted at room temperature for B hours. The solvent was distilled off under reduced pressure, and the residue was recrystallized from a mixed solvent of ethyl acetate and n-hexane to obtain 1154 g of the target exemplary compound.

(Yield 88%) The structure of the target product was identified by Mass and NMR spectra.

The amount of the masking coupler of the present invention to be added varies depending on its structure, etc., but is preferably 1 x 1 /% per mole of silver halide in the silver halide emulsion layer to which the coupler is added.
0-' to 1.0 mol, particularly preferably IXIO-' to 0.5 mol.

The silver halide emulsion used in the light-sensitive material of the present invention includes:
Any of the conventional silver halide emulsions can be used.

The emulsion can be chemically sensitized by conventional methods, and can be optically sensitized to a desired wavelength range using a sensitizing dye.

Anticapri agents, stabilizers, etc. can be added to the silver halide emulsion. Gelatin is advantageously used as binder for the emulsion.

The emulsion layer and other hydrophilic colloid layers can be hardened and can contain a plasticizer and a dispersion (latex) of a water-insoluble or sparingly soluble synthetic polymer.

A coupler is used in the emulsion layer of a light-sensitive material for color photography.

Furthermore, by coupling with competing couplers and oxidized forms of developing agents, development accelerators, bleach accelerators, developing agents, silver halide solvents, toning agents, hardeners, fogging agents, antifogging agents, and chemical sensitizers can be produced. Compounds that release photographically useful fragments such as spectral sensitizers, spectral sensitizers, and desensitizers can be used.

The photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, and an antiirradiation layer. These layers and/or the emulsion layer may contain dyes that are washed out or bleached from the light-sensitive material during the development process.

A formalin scavenger, an optical brightener, a matting agent, a lubricant, an image stabilizer, a surfactant, a color fog preventer, a development accelerator, a development retardant, and a bleach accelerator can be added to the photosensitive material.

As a support, paper laminated with polyethylene, etc.
Polyethylene terephthalate film, baryta paper, cellulose triacetate film, etc. can be used.

In order to obtain a dye image using the light-sensitive material of the present invention, commonly known color photographic processing can be performed after exposure.

[Example] Comparison masking coupler A less than, Examples of the present invention are shown below. The present invention is The invention is not limited to these examples.

Comparative masking couplers and other compounds used in the following examples are as follows.

Below margin 0 Comparison masking coupler B 0H Comparison masking coupler C Comparison masking coupler D (S-1) 0H (S-2) Comparison masking coupler E rJ (S-3) Comparison masking coupler F N0U (S-4) (CHzhSOt (CH*)tsOJi (S-6) (S-7) (S-8) (CH2)4SO3 C2H% (C-3) (M-1) (M-2) C1 (S-9) (S- 10) (C-1) (C-2) (D-3) (H-1) (H-2) [(CH2-CHS02CH2)3CCH2S02CH
2CI{2]. NC! {2CH2SO,K(o i 1
-1) (o i 1 -2) (oil-3) (oil-4) (Stab-1) (D-4) nl1 NOz (UV-1) (UV-2) C2H! 1 (HS-1) (HS-2) (AF-1) (AF-2) (DI-1) CH, CHi CH3 (Su-1) H N103S C COOCHz (CF2ChhH1 C -COOCH*(ChCF2)J H2 (S u - 2) H Nl03S C COOCaHt7CTo CO
OCaH+7 (Su-3) (SC-1) (AIC-1) (AIM-1) 0}1 OH SO3K )03h Example 1 The masking coupler of the present invention and the comparative masking coupler shown in Table 1 were each mixed with silver 1 Tricresyl phosphate in an amount of 1 times the weight of the coupler and ethyl acetate in an amount of 3 times the weight of the coupler were added to each 0.1 mol of the coupler, and the mixture was heated to 60° C. to completely dissolve. This solution was mixed with 1 2 ml of a 5% aqueous gelatin solution containing 1 2 0 ml of a 5% aqueous solution of Alkanol B (alkylnaphthalene sulfonate, manufactured by DuPont).
0 0 ml, emulsified and dispersed with an ultrasonic dispersion machine,
An emulsion was obtained.

Thereafter, this dispersion was added to a red-sensitive silver iodobromide emulsion (>4 kg containing 6 mol% silver iodide), and 1.2-
Add 120 ml of a 2% solution of bis(vinylsulfonyl)ethane (water:methanol-1:l), coat on the subbed transparent polyester base and dry.
-8 were produced. (Coated silver amount 20mg/l
00cd) These samples 1 to 8 were prepared according to a conventional method.
The sample was exposed stepwise to red light using a sensitometer, and the following development process was performed.

Processing process (38℃) Processing time Color development 3 minutes i5 seconds bleaching 6 minutes 30 seconds water
Wash for 3 minutes and 15 seconds
Arrival B: Wash for 30 seconds.
Stable for 3 minutes and 5 seconds
The composition of the treatment liquid used in each treatment step is as follows.

(Color developer composition) 4-amino-3-methyl-N-ethyl-N-(β-hydroxyethyl) -aniline sulfate 4.75g anhydrous sodium sulfite 4.25g hydroxylamine 1/2 sulfate 2.0g anhydrous potassium carbonate 37. 5g sodium bromide
1.3g Nitrilotriacetic acid trisodium salt (monohydrate) 2.51r Potassium hydroxide l. Add Og water to lg and adjust pH to 10 using potassium hydroxide.
Adjusted to 0.

(Bleach solution composition) Ethylenediaminetetraacetic acid iron ammonium salt 100.0g Ethylenediaminetetraacetic acid diammonium salt to. og ammonium bromide 150.0g glacial acetic acid
1 0. 0 ml of water was added to make up to 1 g, and the pH was adjusted to 6.0 using aqueous ammonia.

(Fixer composition) Ammonium thiosulfate (50% aqueous solution) LB2ml
Anhydrous sodium sulfite 12.4g Water was added to make tU, and the pH was adjusted to 8.5 using acetic acid.

(Stabilizing liquid composition) Formalin (37% aqueous solution) 5.0ml
Konidax (manufactured by Konica Corporation) 7.5 ml of water was added to prepare LR.

After drying, samples 1 to 8 having a cyan negative image and a yellow positive mask image were obtained.

Table 1 shows the cyan density (Fog) of the unexposed portion of each sample and the relative sensitivity of the cyan image (S, where the sensitivity of sample 5 is 100).

As is clear from Table 1, the masking coupler of the present invention exhibited good sensitivity without increasing capri.

Example 2 Take 0.02 mol each of magenta coupler and masking coupler shown in Table 2, add the total amount to a mixture of the same amount of dibutyl phthalate and 3 times the amount of ethyl acetate, and heat to 60°C. It was heated and dissolved.

An aqueous solution of Alkanol B (alkylnaphthalene sulfonate, manufactured by DuPont) and gelatin was added to this solution, and the mixture was emulsified using a colloid mill to prepare a coupler dispersion.

Next, this coupler dispersion was added to a green-sensitive silver iodobromide emulsion containing 0.1 mol of silver (7 mol % silver iodide), and taurine of 1,2-bisvinylsulfonylethane was added as a hardener. The reactants were heated to O. Samples 9 to 12 were prepared by adding 1.1 g of the solution and coating it on a transparent cellulose triacetate film base and drying it.

Each sample thus obtained was exposed to green light and processed in the same manner as in Example 1.

The masking effect was evaluated from the obtained images.

The results are shown in Table 2.

Table 2: Table 2 shows the decrease in yellow density from the yellow density of the fogged area at the jogE value that gives a magenta density of 1.0. Comparative samples 9 and 10 have small masking, while the masking of the present invention It was found that samples 11 and 12 had large masking.

Furthermore, the effect of the present invention was also observed when the masking coupler 7 of the present invention was used in place of the masking coupler 14 of Sample 11.

Example 3 In this example, the amount added in the silver halide photographic light-sensitive material is expressed in Durham number per lr& unless otherwise specified.

In addition, silver halide and colloidal silver are shown in terms of silver.

Sample 1 was prepared by sequentially forming each layer having the composition shown below on the triacetyl cellulose film support from the support side.
3 was produced.

1st layer; antihalation layer (HC-1) black colloidal silver 0.20 ultraviolet absorber (UV
-1) 0.20 colored coupler (C
C-1) 0.05 colored coupler (CM-1) 0.05 high boiling point organic solvent (
Oil-1) O. 20 gelatin
1,5 Second layer: Intermediate layer (IL-1
) Ultraviolet absorber (UV-1) 0.01 High boiling point organic solvent (Oil-1) 0.01 Gelatin 1.5 Third layer; low sensitivity red-sensitive emulsion layer (RL) Silver iodobromide emulsion (E m − 1)
1.0 silver iodobromide emulsion (E m-2)
0.5 sensitizing dye (S-1)
2.5x 10-' (mol/silver 1 mol) Sensitizing dye (S-2) Sensitizing dye (S-3) 2.5X 10-' (mol/silver 1 mol) 0.5X 10-4 (mol / silver mol) 0.8 0.2 0.05 0.002 0.5 1.5 Cyan coupler (C-1) Cyan coupler (C-2) Comparative masking coupler A DIR compound (D-1) High boiling point Organic solvent (Oil-1) Gelatin 4th layer; High sensitivity red-sensitive emulsion layer (RH) Silver iodobromide emulsion (Em-3) Sensitizing dye (S-1) 2,0 2. OX 1G-' (mol/silver mol) 2. OX 10-' (mol/silver mol) 0. IX 10-' (mol/l mol of silver) Q. 25 0.015 Sensitizing dye (S-2) Sensitizing dye (S-3) Cyan coupler (C-3) Comparative masking coupler A DIR compound (D-2 > 0.
05 High boiling point organic solvent (Oil-1) 0.5
Gelatin 1.5 5th layer; Intermediate layer (IL-2) Gelatin 0.5 6th layer; Low-sensitivity green-sensitive emulsion layer (GL) Silver iodobromide emulsion (E
m-1) 1.0 sensitizing dye (S
-4) 5 x to-' (mol/silver 1 mol) Sensitizing dye (S-5) 1xlO-' (
Magenta Coupler (M-1) 0.4 Comparative Masking Coupler E O. 05 DIR compound (D-3) 0.015 DIR compound (D-4) 0.020 High boiling point organic solvent (Oil-2) 0.5 Gelatin 1,0 7th layer; Intermediate layer (IL-3) Gelatin 0.8 High boiling point organic solvent (Oil-1) 0.2 8th layer; High sensitivity green-sensitive emulsion layer (GH) Silver iodobromide emulsion (Em-3) 1.3 Sensitizing dye (S-6) l. 5x 1
0-' (mol/silver mol) Sensitizing dye (S-7) 2.5X
10-' (mol/silver 1 mol) Sensitizing dye (S-8) 0.5XIO-'
(Mole/i mole of silver) Magenta Cobra (M-2) 0.05 Magenta Cobra (M-3) 0.15 Comparative Masking Coupler FO. 05DIR compound (D-3 > 0.01 High boiling point organic solvent (Oil-3) 0.5 Gelatin
1.0 9th layer; yellow filter layer (YC) yellow colloidal silver
0.1 color stain prevention agent (SC-1)
0.1 high boiling point organic solvent (0-i 1-3)
0.1 gelatin 0
．． 8th 1O layer; low sensitivity blue-sensitive emulsion layer (BL) Silver iodobromide emulsion (E m -1) 0.25 Silver iodobromide emulsion (E m -2) 0.2
5 Sensitizing dye (S-10) 7
x 10-' (mol/i mol of silver) 0.5 0.1 0. Ol-3) 0.15 l. Yellow coupler (Y-1) Yellow coupler (Y-2) DIR compound (D-2) High-boiling organic solvent (Oi.1 Gelatin 11th layer; High sensitivity blue-sensitive emulsion layer Silver iodobromide emulsion (Em-4) ) Silver iodobromide emulsion (Em-1) Sensitizing dye (S-9) (BH) Sensitizing dye (S-10) 0.50 0.20 l X 10-' (mol/l mole of silver) 3 X 10-' (mol/silver mol) 0.3α 0.05 0.07 L.1 Yellow coupler (Y-1) Yellow coupler (Y-2) High boiling point organic solvent (Oil-3) Gelatin 12th layer; First protective layer (PRO-1) Fine grain silver iodobromide emulsion (average grain size 0.08 μm, AgI
2 mol%) 0.4 Ultraviolet absorber (UV-1) 0.10 Ultraviolet absorber (U4-2) 0.05 High boiling point organic solvent (Off-1) 0.1 High boiling point organic solvent (O l 1 - 4) 0.1 Formalin Scavenger (HS-1) 0.5 Formalin Scavenger (MS-2) Gelatin 13th layer; 2nd protective layer (PRO-2) Surfactant (S u-1) Alkali Soluble matting agent (average particle size 2 μm) Cyan dye (AIC-1) Magenta dye (AIM-1) Slip agent (WAX-1) Gelatin 0.2 i. 0 0.005 0. to 0.005 0.01 0.04 0,6 In addition to the above, each layer also contains a coating aid (Su-2), a dispersion aid (Su-3), a hardening agent (H-1), and (H-2)
Preservative (DI-1), stabilizer (Stab-1), antifoggant (AF-1) and (AF-2) were added.

Em-1 Average grain size 0.48 μm 1 Average silver iodide content 7.5 mol%
, monodisperse silver iodobromide emulsion Em-2, average grain size 0.32 μm, average silver iodide content 2.0 mol%
, monodisperse silver iodobromide emulsion Em-3 average grain size 0.78 μm 1 average silver iodide content 6.0 mol%
, monodisperse silver iodobromide emulsion Em-4, average grain size 0.96 μm, average silver iodide content 8.0 mol%
, a monodisperse surface-low silver iodide-containing silver iodobromide emulsion.In addition, in sample 13, the masking couplers in the third, fourth, sixth, and eighth layers were changed as shown in Table 3. Samples 14 to 20 were prepared in this manner.

It is possible to provide a silver halide photographic light-sensitive material having a third-appearing masking effect.

Claims (1)

[Scope of Claims] In a silver halide color photographic material having at least one silver halide emulsion layer on a support, at least one of the silver halide emulsion layers has the following general formula [
A silver halide color photographic material containing a masking coupler represented by I. General formula [I] Coup-J-het-Ar-CHO [In the formula, Coup represents a coupler residue, and J represents a divalent linking group bonded to the active site of the coupler. he
t represents an oxygen or sulfur atom, and Ar represents an arylene group. ]