JPH0481844A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To improve the spectral characteristics of a yellow dyestuff and to obtain excellent color reproducibility by incorporating the yellow coupler expressed by a specific structure and 2-(2'-hydroxyphenyl)benztriazole compd. into the above material. CONSTITUTION:This photosensitive material contains the yellow coupler expressed by the formula and the 2-(2'-hydroxyphenyl)benztriazole compd. In the formula, RA denotes an alkyl group, cycloalkyl group; RB denotes an alkyl group, cycloalkyl group, acyl group or aryl group; RC denotes a group which can be substd. with a benzene ring; RD denotes an alkyl group; J denotes -N(RE) CO- or -CON(RE)- (RE denotes a hydrogen atom, alkyl group, aryl group or heterocyclic group); X1 denotes a group which can be eliminated at the time of coupling; (n) denotes 0 or 1. The excellent preservable property of yellow dye images and the high color developing densities as well as the sufficient max. density are obtd. in this way.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is directed to a halogenated dye that has good spectral absorption characteristics of the formed dye, excellent color reproducibility, excellent image storage stability, and high maximum density. This relates to silver photographic materials.

[Background of the Invention] In silver halide photographic materials intended for direct viewing, such as color photographic paper, a combination of a yellow coupler, a magenta coupler, and a cyan coupler is usually used as a color former to form a dye image. It will be done. These couplers are required to have basic performance such as color reproducibility, color development, and image storage stability in the resulting dye image, but in recent years in particular, color reproduction has been improved in order to faithfully reproduce the original color of the object. Demand for improved sexual performance is increasing from users.

For example, in the case of a yellow coupler, unnecessary absorption in the long wavelength side of 500 nm or more is not sharply reduced for the coloring dye formed, so it has the disadvantage that color reproduction in yellow and green hues is insufficient. .

On the other hand, with the progress of silver halide color photographic light-sensitive materials, improvements in color development have been required in recent years, and for this purpose, for yellow couplers, reasonable consideration has been made in the design of coupler molecules. It has been proposed to improve color development by introducing hydrophilic groups such as alkoxycarbonyl groups, sulfonyl groups, N-substituted or uncovered alkylsulfonamide groups, and arylsulfonamide groups into the ballast component.

However, when such a hydrophilic group is introduced into the ballast component of a yellow coupler, color development is generally improved, but unnecessary absorption of the long wavelength side of the color development dye further increases, resulting in deterioration of color reproducibility. Furthermore, there is also a tendency for light resistance to deteriorate.

For this reason, the reality is that a silver halide color photographic material that is excellent in color development, color reproducibility, and light fastness has not yet been found.

[Object of the Invention] A first object of the present invention is to provide a silver halide photographic material in which the spectral characteristics of a yellow dye are improved and the material has excellent color reproducibility.

A second object of the present invention is to provide a silver halide photographic material with excellent preservability of yellow dye images.

A third object of the present invention is to provide a silver halide photographic material which has a high color density and can obtain a sufficient maximum density.

[Structure of the Invention] The above object of the present invention is to combine at least one yellow coupler represented by the following general formula [Y-1] and 2- (2'
This is achieved by a silver halide photographic material containing at least one of -hydroquinphenyl)benzotriazole compounds.

General formula [Y-1) , Ro represents an alkyl group, J bar N GO
- or -CON- (Rx is hydrogen RE
RE represents an atom, an alkyl group, an aryl group, or a heterocyclic group. )
, Xl represents a group that can be separated upon coupling with an oxidized form of a developing agent, and n represents 0 or 1. ] [Specific structure of the present invention] The yellow coupler represented by the general formula [Y-I] will be explained.

In general formula [Y-1), examples of the alkyl group represented by RA include a methyl group, an ethyl group, an isopropyl group, a t-butyl group, and a doorlyl group. This R.A.
The alkyl group represented by also includes those having a substituent, and examples of the substituent include a halogen atom, an aryl group, an alkoxy group, an aryloxy group, an alkylsulfonyl group, an arylsulfonyl group, an acylamino group, and a hydroxyl group. Examples include groups.

Examples of the cycloalkyl group represented by RA include a cyclopropyl group, a cyclohexyl group, and an adamantyl group.

Particularly preferred as RA is a branched alkyl group.

In general formula [Y-1), the alkyl group and cycloalkyl group represented by RB include the same groups as RA, and the aryl group includes, for example, a phenyl group.

The alkyl group, cycloalkyl group, and aryl group represented by RB include those having the same substituents as R^.

Examples of the acyl group include an acetyl group, a propionyl group, a butyryl group, a hexanoyl group, and a benzoyl group.

RB is preferably an alkyl group or an aryl group,
Particularly preferred is an alkyl group.

In general formula [Y-1), the groups that can be substituted on the benzene ring represented by Rc include l\logen atom (e.g. chlorine atom), alkyl group, alkoxy group (e.g. methoxy group), aryloxy group, allyloxy group, acylamino group, carbamoyl group, alkylsulfonamide group, arylsulfonamide group, sulfamoyl group, imide group, and the like.

n is 0 or 1.

In the general formula [Y-I), the alkyl group represented by RD includes linear and branched alkyl groups having 1 to 30 carbon atoms, such as methyl group, ethyl group, n-propyl group, isopropyl group, t- Butyl group, n-pentyl group, n-hexyl group, 2-ethylhexyl group, n-octyl group, n-
Decyl group, linear and branched dodecyl group, tridecyl group,
Examples include a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a nonadecyl group, an eicosyl group, a tocosyl group, a tetradecyl group, and a hexanoyl group. Particularly preferred among these alkyl groups are those having 8 to 20 carbon atoms.

In general formula [Y-1), RE　　　　　　　R.

Represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group.

Examples of the alkyl group represented by RE include methyl group, ethyl group, isopropyl group, t-butyl group, and dodecyl group.

Further, examples of the aryl group represented by RE include a phenyl group and a naphthyl group.

These alkyl groups or aryl groups represented by RE include those having substituents.

This substituent is not particularly limited, but representative examples include a halogen atom, an alkyl group, an aryl group (e.g., phenyl group, p-methoxyphenyl group, naphthyl group, etc.), an alkoxy group, and an aryloxy group. , alkylthio group, arylthio group, alkylsulfonyl group,
Examples include arylsulfonyl group, acylamino group, etc.
Further examples include a carbamoyl group that may have a substituent, an acyl group, a sulfonamide group, a sulfamoyl group that may have a substituent, a hydroxy group, a nitrile group, and the like.

In the general formula [Y-1], Xl represents a group that leaves during the coupling reaction with the oxidized form of the developing agent, and for example represents a group of the following general formula [Y-Ill or [Y-■].

General formula (yn) -OR4 In the formula, RF represents an aryl group or a heterocyclic group including those having a substituent.

General Formula [Y-m] In the formula, Zl represents a group of nonmetallic atoms necessary to form a 5- to 6-membered ring in cooperation with the nitrogen atom.

Here, the atomic groups necessary to form the nonmetallic atomic group include, for example, methylene, methine, substituted methine, 〉C-0,
-NH--N--OS S O2-, etc. are mentioned.

Particularly preferable groups among the groups represented by the general formula [Y-Ill or [Y-m:l] are the following general formulas [Y-mV) to [Y
-IX).

General formula [Y-rV] In the formula, R1 is a carboxyl group, an ester group, an acyl group,
It represents an alkylsulfonyl group, an arylsulfonyl group, a hydroxyl group, or a substituent similar to the group represented by Rc above, and I represents an integer of O to 5.

When g is 2 or more, R may be the same or different.

General formula (y - v) General formula [Y-VIE represents a arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonami F group, an arylsulfonamide group, a carboxylic acid group, and these groups are the same. may also be different.

Furthermore, R3 and RK may form a ring.

General formula [Y-■] General formula [Y-■] In the general formulas [Y-V), [Y-VI] and [Y-■], RJ and RK are hydrogen atoms, halogen atoms,
Alkyl group, alkoxy group, aryl group, heterocyclic group,
In the carboxylic acid ester group, amino group, acylamino group, alkylsulfonyl group, Z2 represents a hetero atom (for example, -NH-O--S-, etc.), and R5 has the same meaning as R4. RM represents an alkyl group, an aryl group, an alkylcarbonyl group, an arylcarbonyl group, an alkylsulfonyl group, or an arylsulfonyl group.

General formula [Y-IX) /\, O C In the formula, W is a heteroatom (e.g. -NH--N--0--
3-, etc.), sulfonyl, car group, and Z3 is -W-N
Represents a group of nonmetallic atoms necessary to form a 5- to 6-membered ring in cooperation with -CO-. RN, Ro and Rp represent the same groups as R4 and RK above.

Further, RNSRo and RP may form a ring together with a part of Z3.

The yellow coupler of the present invention preferably has a ballast group. A ballast group is an organic group that provides diffusion resistance to the coupler, and includes an alkyl group with 6 or more carbon atoms,
Examples include an aryl group having 10 or more carbon atoms, and an aryl group substituted with a linear or branched alkyl group having 10 or more carbon atoms in total. All of these are
R in general formula [Y-I] is a group included in the above description as 5RcSRD or a partial structure thereof.

Among the general formulas [Y-IV) to [:Y-IX:l, the most preferable one is represented by the general formula [Y-IX].

The yellow coupler represented by the general formula [Y-I] according to the present invention can be synthesized by a conventionally known method.

Further, the yellow coupler represented by the general formula [Y-■] according to the present invention can be used alone or in combination of two or more types, and can also be used in combination with another type of yellow coupler.

Further, the yellow coupler according to the present invention can be used generally in a range of about IX 10-3 mol to about 1 mol, preferably IX 10-2 mol to 8X 10-' mol per mol of silver halide. .

Next, 2 represented by the general formula [Y-I] used in the present invention
Although typical examples of equivalent yellow couplers are shown, the present invention is not limited thereto.

The 2-(2'-hydroxyphenyl)benzotriazole compound used with the yellow coupler of the present invention may have any structure as long as it is a 2-(2'-hydroxyphenyl)benzotriazole compound. However, in particular, the following general formula [UV
Compounds represented by -1)' are preferred.

General formula [UV-1] K^2 The above general formula (UV-I) Ic, RAo, RA2 and RAl each represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group,
Represents an alkenyl group, nitro group or hydroxyl group.

Examples of the halogen atom represented by RAl, RA2, and RAl include a fluorine atom, a chlorine atom, a bromine atom, and the like, with a chlorine atom being particularly preferred.

The alkyl group and alkoxy group represented by RAl, RA2 and RAl preferably have 1 to 20 carbon atoms, and the alkenyl group preferably has 2 to 20 carbon atoms. It may be a branch.

Moreover, these alkyl groups, alkenyl groups, and alkoxy groups may further have a substituent. Examples of substituents include aryl, cyano, halogen atom, heterocycle, cycloalkyl, cycloalkenyl, spiro compound residue, bridged hydrocarbon compound residue, as well as acyl, carboxy, carbamoyl, alkoxycarbonyl, and aryloxycarbonyl. those substituted via a carbonyl group, and those substituted via a heteroatom (specifically hydroxy, alkoxy, aryloxy, heterocyclic oxy,
Those substituted through an oxygen atom such as siloxy, acyloxy, carbamoyloxy, nitro, amino (including dialkylamino, etc.), sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, acylamino, sulfonamide, imide, Those substituted through a nitrogen atom such as ureido, alkylthio, arylthio, heterocyclic thio, sulfonyl, sulfinyl,
Examples include those substituted via a sulfur atom such as sulfamoyl, and those substituted via a phosphorus atom such as a phosphonyl group.

Specifically, for example, methyl group, ethyl group, isopropyl group, t-butyl group, 5ec-butyl group, n-butyl group,
n-amyl group, 5ee-amyl group, t-amyl group, α,
α-dimethylbenzyl group, octyloxycarbonylethyl group, methoxy group, ethoxy group, octyloxy group,
Examples include allyl group.

As the aryl group and aryloxy group represented by RAl, RA2 and RA3, for example, phenyl group and phenyloxy group are particularly preferable, and substituents (for example, alkyl group,
(alkoxy group, etc.). Specific examples include phenyl group, 4-t-butylphenyl group, 2,4-di-t-amylphenyl group, and the like.

Among the groups represented by RAI and RA2, hydrogen atoms, alkyl groups, alkoxy groups and aryl groups are preferred;
Particularly preferred are hydrogen atoms, alkyl groups and alkoxy groups.

Among the groups represented by RA3, hydrogen atoms, halogen atoms, alkyl groups, and alkoxy groups are particularly preferred.

Furthermore, among the compounds represented by the general formula [UV-I],
Compounds that are liquid at room temperature can also be used as high-boiling point organic solvents for the yellow coupler of the present invention, so they are advantageously used from the viewpoint of lowering the oil ratio in the coating film and from the viewpoint of precipitation. be able to.

Here, being liquid at room temperature means that it is liquid under the temperature conditions of the step of incorporating the compound represented by the general formula [UV-1] into the silver halide photographic light-sensitive material according to the present invention, particularly Compounds whose melting point is 30°C or lower are preferred. More preferably, it is a compound having a melting point of 15°C or lower.

In this case, if it is liquid under the above conditions, 2-(2
Any compound among "-hydroxyphenyl)benzotriazole compounds may be used, and it may be a single compound or a compound. As a mixture, one composed of a group of structural isomers is preferably used. be able to.

Typical specific examples of the compound represented by the general formula CUV-1 are shown below, but the present invention is not limited thereto.

Below margin (UV-1) (UV-2) ShiH5 (UV-3) (UV-4) (UV-5) ShiH3 (UV-6) (UV-7) (UV-8) (UV-13 ) (UV-14) ('[JV-15) (UV-16) ShiJu(tl (UV-9) (UV-10) (UV-11) (UV-12) (UV-17) (UV- 18) (UV-19) (UV-20) (UV-21) CHzCHzCOOCsH17(n) (UV-22) 2H5 (UV-23) C)+3 ('[JV-24) OCaH,7(o) These 2-(2'-hydroxyphenyl)benzotriazole compounds are disclosed in U.S. Pat. No. 3,533,794.
No. 4,323,633, No. 4. ! No. 183.8H, West German Patent Application Publication No. 1,813,161, No. 2,15
No. 1,098, Japanese Patent Publication No. 4B-41,572, Japanese Patent Publication No. 4
No. 7-580, No. 47-1026, No. 47-1057
No. 57-142975, etc., and can be synthesized according to the described synthesis method.

The above-mentioned 2-(2'-hydroxyphenyl)benzotriazole compound is added to the photographic layer containing the yellow coupler of the present invention, or is added to a layer above the photographic layer containing the yellow coupler of the present invention. If so, it may be added to any layer.

In recent years, in the field of manufacturing technology for color photographic materials, in order to obtain even higher quality color photographs, great efforts have been made to develop color photographic materials that are thinner in order to improve sharpness. ing.

However, in a thin layered color photographic material,
There is a limit to the amount of the 2-(2'-hydroxyphenyl)benzotriazole compound of the present invention that can be added, making it impossible to add the desired amount.

Therefore, the conventional yellow coupler and the 2-(2'-
When used in combination with a hydroxyphenylbenzotriazole ultraviolet absorber, it is extremely difficult to suppress the deterioration of the light resistance of thinned color photographic materials due to ultraviolet rays to within an acceptable range.

Furthermore, if the benzotriazole-based ultraviolet absorber of the present invention can suppress the deterioration of light resistance due to ultraviolet rays within an allowable range with a smaller amount than the conventional one, it will be advantageous in terms of saving resources.

As a result of extensive studies, the present inventors have found that if the yellow coupler of the present invention is used, a smaller amount of the benzotriazole-based ultraviolet absorber of the present invention than before can be added to a color photographic light-sensitive material, resulting in a reduction in light resistance. They found that it was suppressed more than expected.

Thereby, even if the benzotriazole-based ultraviolet absorber-containing layer of the present invention is made thinner than before, deterioration in light resistance due to light can be suppressed.

The coupler and ultraviolet absorber of the present invention can be added using various methods such as solid dispersion method, latex dispersion method, oil-in-water emulsion dispersion method, etc., as well as the method of adding hydrophobic compounds by boat fishing. This can be appropriately selected depending on the chemical structure of the hydrophobic compound such as the coupler.

The oil-in-water emulsion dispersion method can be applied by dispersing a hydrophobic compound such as a coupler, and is usually mixed with a high-boiling organic solvent with a boiling point of about 150°C or higher, and if necessary with a low-boiling point and/or water-soluble organic solvent. After dissolving and emulsifying and dispersing in a hydrophilic binder such as an aqueous gelatin solution using a surfactant using a dispersion means such as a stirrer, homogenizer, colloid mill, flow jet mixer, or ultrasonic device,
It may be added to the desired hydrophilic colloid layer. A step of removing the low boiling point organic solvent may be included after or simultaneously with the dispersion.

The silver halide photographic light-sensitive material of the present invention can be, for example, color negative and positive films, color photographic paper, etc., but the effects of the present invention are especially achieved when it is used as color photographic paper for direct viewing. is fully demonstrated.

The silver halide photographic material of the present invention, including this color photographic paper, may be for monochrome use or for multicolor use. In the case of multicolor silver halide photographic light-sensitive materials, in order to perform subtractive color reproduction, a silver halide emulsion layer containing yellow, magenta, and cyan couplers as photographic couplers and a non-light-sensitive layer are usually used. has a structure in which a suitable number and order of layers are laminated on a support, but the number and order of layers may be changed as appropriate depending on the important performance and purpose of use.

Examples of magenta dye image-forming couplers that can be used in the present invention include 5-pyrazolones, pyrazoloazoles, pyrazolinobenzimidazoles, indacylons,
Cyanoacetyl 4-equivalent or 2-equivalent magenta dye image-forming couplers are mentioned, such as those described in US Pat. No. 2,600,788, No. 3,061,432
No. 3,062,653, No. 3,127.26
No. 9, No. 3,311,476, No. 3.152゜8
No. 96, No. 3.419.391, No. 3.519,
No. 429, No. 3,558,318, No. 8,684
．． 514, 3.705.896, 3.88
No. 8,680, No. 3,907,571, No. 3.9
No. 28,044, No. 3,930,861, No. 3.
93o, Gie No. 8,933,500, JP-A-49-29639, JP-A-49-111631, JP-A-49
-129538, 51-112341, 52-
No. 58922, No. 55-62454, No. 55-118
No. 034, No. 51i-386, 43, No. 5B-135
No. 841, Special Publication No. 46-60479, No. 52-349
No. 37, No. 55-29421, No. 55-3569B, British Patent No. 1,247.493, Belgian Patent No. 792
Cyan couplers that can be used in the present invention described in the specifications of No. 525 and West German Patent No. 2,156,111 include:
Phenol compounds, naphthol compounds, etc. can be used. A specific example is U.S. Patent No. 2,36
No. 9,929, No. 2,434.272, No. 2.4
No. 74,293, No. 2,521,908, No. 2.
No. 895826, No. 3,034,892, No. 3,
311.47 [1i, 3,458.315, 3,476.563, 3.583.971,
No. 3,591.383, No. 3,767.411, No. 4,004,929, West German Patent (OLS)
No. 2,414°830, No. 2,454,329,
JP 48-59838, JP 51-28034, JP 48-5055, JP 51-146828, JP 2-6
Examples include those described in No. 9624, No. 52-90932, and the like.

Silver halide emulsion used in the silver halide photographic light-sensitive material of the present invention (hereinafter referred to as the silver halide emulsion of the present invention).

) may be any silver halide used in ordinary silver halide emulsions, such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, and silver chloride.

The silver halide emulsion of the present invention is chemically sensitized by a sulfur sensitization method, a selenium sensitization method, a reduction sensitization method, a noble metal sensitization method, or the like.

The silver halide emulsion of the present invention can be optically sensitized to a desired wavelength range using dyes known as sensitizing dyes in the photographic industry.

The silver halide photographic material of the present invention includes a color antifoggant, a hardening agent, a plasticizer, a polymer latex, an ultraviolet absorber, a formalin scavenger mordant, a development accelerator, a development retardant, a fluorescent whitening agent, Matting agents, lubricants, antistatic agents,
Surfactants and the like can be optionally used.

The silver halide photographic material of the present invention can form images by performing various color development treatments.

[Example] Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited to these.

Example 1 Silver halide color photographic light-sensitive material sample No. 1 was prepared by sequentially coating the following layers on a paper support laminated with polyethylene from the support side.

Layer 1---= 1.2g/rd gelatin, 0
．． Blue-sensitive silver halide emulsion (silver chloride content 97 mol%) of 32 g/nf (in terms of silver, the same applies hereinafter), 0.50 g/nf
0.80 g/m” dissolved in dioctyl phthalate of
A layer containing a yellow coupler [Y-, A].

Layer 2 - = -0,7 g / rrlt of gelatin, 1.
0+wg/ryi” irradiation dye (AI
-1) Intermediate layer consisting of 5 mg/bo of (AI-2).

Layer 3: 1.25 g/rtf gelatin, 0.
22g/rr? a green-sensitive silver halide emulsion (silver chloride content 100 mol %), a layer containing 0#2g1rd magenta coupler (M-A) dissolved in 0.30g/I dioctyl phthalate.

Layer 4: Intermediate layer consisting of 1.2 g/rrF of seratin.

Layer 5...1.40g/nf gelatin, 0.2
A layer containing 0 g/rrf of red-sensitive silver halide emulsion (silver chloride content 100 mol%), 0.45 g/rr of cyan coupler (C-A) dissolved in 0.20 g/rr of triro-octyl phosphate. .

Layer 6: Intermediate layer consisting of 1.2 g/rd of seratin.

Layer 7: Layer containing 0.5 g/rrr of gelatin.

As a hardening agent, sodium 2,4-dichloro-6hydroxy-s-triazine was added to layers 2.4 and 6 in an amount of 0.017 g per 1 g of gelatin, respectively.

(AI-1) (AI-2) The layer 6 of sample Nα1 contained the ultraviolet absorber UV-8 or UV-111i dissolved in dibutyl phthalate-1-(DBP) in the amount shown in Table 1, and Samples No. 2 to No. 5 were prepared by changing the amount of gelatin.

In addition, for each of samples No. 1 to No. 5, as shown in Table 1, the yellow coupler Y-
Sample No. 6 was prepared in the same manner as Sample No. 1 to No. 5 above except that A was replaced with yellow coupler Y-B.
-No.

Created IO.

Furthermore, for each of samples No. 1-No. 5, as shown in Table 1, the yellow coupler Y contained in layer 1
Samples Nα11 to No. 1.5 were prepared in the same manner as Samples Nos. 1 to 5 above, except that -A was replaced with the yellow coupler Y-1 of the present invention.

Below Margin Below Margin Table 1 Each of the above photosensitive material samples Nα1 to Nα15 was exposed to blue light through an optical wedge and then processed in the following steps.

Processing process> Temperature Development color development
34.7±0.3℃ 45 seconds bleach fixing 34
．． 7±0.5℃ Stabilized for 50 seconds 30-34℃
Dry for 90 seconds 60-80℃ 60
Quick color developer〉 Pure water
800mJ triethanolamine
8g N,N-diethylhydroxyamine
5g potassium chloride 2g
N-Ethyl-N-β-methanesulfonamidoethyl-3-methyl-4 Aminoaniline sulfate 5g Sodium tetrapolyphosphate 2g Potassium carbonate 30g Potassium sulfite
0.2g optical brightener (4,4'
-diaminostilbendisulfonic acid derivative) 1g Add pure water to bring the total amount to 111, and adjust the pH to 10.2.

Bleach-fix solution> Ferric ammonium ethylenediaminetetraacetic acid dihydrate 80g ethylenediaminetetraacetic acid 3g ammonium thiosulfate (70% solution) 100ml ammonium sulfite (40% solution) 27.5ml Adjust the pH to 5.7 with potassium carbonate or glacial acetic acid. Add water to bring the total volume to 19.

Stabilizing liquid> 5-chloro-2-methyl-4-isothiazolin-3-one 1g 1-hydroxyethylidene-1゜1-diphosphonic acid 2g Water was added to make II, and the pH was adjusted to 7.0 with sulfuric acid or potassium hydroxide.
Adjust to 0.

The obtained sample was measured using an optical densitometer (Konica Corporation PDA
- [i5 type] with the highest density (D) of the blue-sensitive emulsion layer
max) was measured.

Further, the maximum absorption wavelength λmax when the density of the yellow dye image was 1.0, and the density and DG at a wavelength of 500 nm at that time were measured.

Further, the obtained sample was subjected to a fading test for 10 days using a fade meter, and the light resistance was evaluated by determining the residual rate (%) of the dye image at an initial density of 1.0.

The results are shown in Table 2.

As is clear from Margin Table 2 below, the yellow coupler according to the present invention has good color development, has excellent color reproducibility due to decreased D6, and furthermore, when combined with the ultraviolet absorber according to the present invention. It can be seen that the light resistance deterioration of the prepared samples Nα12 to No. 5 is small, and especially the samples in which the amount of gelatin and ultraviolet absorber in layer 6 are small also show that the light resistance deterioration is small.

Example 2 Samples Nos. 16 to 43 were prepared in the same manner as in Example 1 using the combinations shown in Table 3, treated in exactly the same manner as in Example 1, and then tested for light resistance in the same manner as in Example 1. evaluated.

[Y-C] Table 3 shows that the yellow coupler of the present invention and the ultraviolet absorber of the present invention can significantly improve light resistance.

[Effects of the Invention] In the silver halide photographic light-sensitive material of the present invention, by including the yellow coupler of the present invention and the ultraviolet absorber of the present invention, the spectral absorption characteristics of the yellow dye formed are improved, and as a result, the color Reproducibility can be significantly improved. Furthermore, the light resistance of the yellow dye can be improved, and the color development is also high and a sufficient maximum density can be obtained.

Sender: Konica Corporation

Claims (1)

[Scope of Claims] A halogenated compound characterized by containing at least one yellow coupler represented by the following general formula [Y-I] and at least one 2-(2'-hydroxyphenyl)benzotriazole compound. Silver photographic material. General formula [Y-I] ▲ Numerical formulas, chemical formulas, tables, etc. represents a group that can be substituted on the benzene ring, R_D represents an alkyl group, J is ▲ formula,
There are chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (R_E represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group. It represents a group that can be separated during ringing, and n represents 0 or 1. ]