JPH02110539A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To improve sharpness, fogging resistance and preservable property by incorporating a high-polymer compd. having a physical restraining property into a black colloidal silver layer and/or at least one layer of silver halide emulsion layers. CONSTITUTION:The black colloidal silver-contg. layer of the silver halide color photographic sensitive material having at least a red-photosensitive silver halide emulsion layer, green-photosensitive silver halide emulsion layer, blue- photosensitive silver halide emulsion layer, and black colloidal silver-contg. layer on a base is provided adjacently to the base side of the silver halide emulsion positioned nearest the base. In addition, the high-polymer compd. having the physical restraining property is incorporated into the black colloidal silver layer and/or at least one layer of the silver halide emulsion layers. The sharpness, fogging resistance and preservable property are improved in this way.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a silver halide color photographic light-sensitive material, and more particularly to a silver halide color photographic light-sensitive material with improved image quality. It is related to.

[Prior Art] In recent years, demands for silver halide color photographic light-sensitive materials have become increasingly sophisticated, and there is no end to the desire for materials with high image quality and high sensitivity. A number of technologies have been developed to meet these demands. For example, U.S. Pat. No. 3,858,536 discloses that silver halide emulsion layers having different color sensitivities, which are unique to silver halide color photographic light-sensitive materials, include changing the layer arrangement on the support.
Techniques have been described to improve sharpness mainly through effective optical utilization. On the other hand, U.S. Patent No. 3,227,55
The specification of No. 4 describes a technology using a DIR coupler DIR compound, and further describes British Patent No. 2,083°640.
The patent discloses a technique using couplers that produce mobile dyes. However, the technique of changing the layer arrangement of the photographic constituent layers on the support reduces operational efficiency in preparing, coating, and drying coating solutions in which each silver halide emulsion layer has a different color sensitivity. In addition, even when coating photographic constituent layers on a support that does not have a large number of photographic constituent layers, it is necessary to implement a manufacturing method that involves multiple coatings and drying, which is unsatisfactory from a product cost standpoint. Furthermore, due to their characteristics, DIR compounds have a desensitizing effect, which is disadvantageous for increasing sensitivity, and there is a limit to how much they can be used.DIR compounds themselves are expensive, and products It is also disadvantageous in terms of cost.

A simple method for improving sharpness is to make the photosensitive layer thinner to shorten the optical path length and reduce light scattering. For example, JP-A-58-145941 describes an example in which a non-photosensitive layer between a black colloidal silver-containing layer and a photosensitive silver halide emulsion layer is removed, and the sharpness is improved. However, direct contact between the black colloidal silver-containing layer and the light-sensitive silver halide emulsion layer has a significant impact on photographic performance, such as contact fog and a significant increase in fog under high-temperature storage conditions. This tendency is more pronounced in color sensitive materials containing couplers in the solvent. As typified by 1503200, recent advances in silver halide emulsion technology have led to higher sensitivity of silver halide emulsions, and at the same time, fog due to contact with the emulsion tends to increase. The non-light-sensitive layer between the layer and the light-sensitive silver halide emulsion layer is required to be thicker rather than eliminated. However, as mentioned above, it is preferable not to have a non-photosensitive layer in terms of sharpness, and in order to achieve both high sensitivity and high image quality, the black colloidal silver-containing layer and the photosensitive silver halide layer must be in contact with each other. However, it is necessary to keep the increase in fog to a small level during storage.

Therefore, the present inventors investigated the non-photosensitive layer (intermediate F
l) is removed from between the black colloidal silver-containing layer and the photosensitive silver halide emulsion layer, and by using the polymer compound of the present invention, the photosensitive silver halide emulsion layer adjacent to the black colloidal silver-containing layer is removed. It has been found that the sharpness is greatly improved and the increase in fog under high temperature storage conditions is significantly reduced.

[Object of the Invention] Therefore, the first object of the present invention is to provide a silver halide color photographic light-sensitive material that has excellent sharpness and excellent fogging and storage stability, and the second object is to provide a silver halide color photographic material that is inexpensive and highly An object of the present invention is to provide a silver halide color photographic material with high image quality.

[Structure of the Invention] The object of the present invention is to form at least a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer, and a black colloidal silver-containing layer on a support. In the silver halide color photographic light-sensitive material, the black colloidal silver-containing layer is adjacent to the support side of the silver halide emulsion located closest to the support, and the black colloidal silver layer, and Alternatively, the present invention has been achieved using a silver halide color photographic light-sensitive material characterized in that at least one of the silver halide emulsion layers contains a polymer compound having physical inhibition properties.

Next, the present invention will be described in more detail.

The polymer compound having physical inhibitory properties in the present invention is
Affects the physical ripening of silver halide emulsions.
The turbidity of silver halide obtained by using a polymer compound other than gelatin, specifically, the method described in the Journal of the Photographic Society of Japan, Vol. 29, No. 1, P17-21 (1966), Any polymer compound that is smaller than that using inert gelatin may be used.

In the present invention, it is unclear what mechanism causes the effect to appear, but since the effect is related to the physical inhibitory property of the polymer compound, it is likely that the adsorption property of the polymer compound to the silver halide grains is related to the effect. It is presumed that there is some kind of relationship between this and the effects of the present invention.

Therefore, in the present invention, the effects of the present invention can be obtained as long as the polymer compound has physical inhibitory properties.

Examples of such polymer compounds include polyvinylpyrrolidone, polyvinyl alcohol, polyvinylimidazole, and derivatives thereof. Among the polymer compounds used in the present invention, those having a group containing a heterocycle in the side chain are most effective. A particularly preferred example is a polymer having a repeating unit represented by formula [I].

Numerical formula [■COR+ -CH2-C-] [In the formula, R3 represents a hydrogen atom or an alkyl group, and Q represents any one group selected from the group consisting of the following a) to C).

a) b) C) d) In these groups a) to d), R2 represents a methyl group or an ethyl group, R3 represents a hydrogen atom, a methyl group, or an ethyl group, and A is a simple bond, and , Z represents an atomic group forming a 5- to 6-membered lactam ring or oxazolidone ring. Most preferably, Q represents a pyrrolidone residue.

Examples of monomers inducing the repeating unit represented by general formula [I] include N-methyl-N-vinylacetamide,
N-vinylpyrrolidone, N-vinyloxazolidone, N
-Vinyl succinimide and the like.

The polymer having the repeating unit represented by the general formula [11] may be not only a homopolymer but also a copolymer. Ethylenically unsaturated compounds forming this copolymer include, for example, acrylic esters, methacrylic esters, acrylamides, methacrylamides, allyl compounds, vinyl ethers, vinyl esters, vinyl heterocyclic compounds, These include styrenes, maleates, fumarates, itaconic esters, crotonate esters, and olefins. Specific examples thereof include methyl acrylate, ethyl acrylate, isopropyl acrylate, n-butyl acrylate, octyl acrylate, 2-chloroethyl acrylate, 2-
Cyanoethyl acrylate-1-, N-(β-dimethylaminoethyl) acrylate, hensyl acrylate, cyclohexyl acrylate, phenyl acrylate: methyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate,
Cyclohexyl methacrylate, 3-sulfopropyl methacrylate; allyl butyl ether, allyl phenyl ether; methyl vinyl ether, butyl vinyl ether, methoxyethyl vinyl ether, 2-hydroxyethyl vinyl ether, (2-dimethylaminoethyl) vinyl ether, vinyl phenyl ether, vinyl chlorphenyl Needle, acrylamide, methacrylamide, N-methylacrylamide, N-(1,1-dimethyl-3-oxobutyl)acrylamide, N-(1,1-
dimethyl-3-hydroxybutyl)acrylamide, N
, N-dimethylacrylamide, acryloylhydrazine, N-methoxymethylmethacrylamide, N-'(1
, 1-dimethyl-3-hydroxybutyl) methacrylamide, N-citroxymethyl acrylamide): vinylpyridine, N-vinylimidazole, N-vinylcarbazole, vinylthiophene, styrene, chloromethylstyrene, p-acetoxystyrene, p- Methyl styrene; p-vinylbenzoic acid, methyl p-vinylbenzoate; crotonamide, butyl crotonate, glycerin monoclonate; methyl vinyl ketone, phenyl vinyl ketone:
Ethylene, propylene, 1-butene, dicyclopentadiene, 4-methyl-1-hexene, 44-dimethyl-1
-Pentene, etc.; Methyl itaconate, ethyl itaconate, diethyl itaconate, etc.; Methyl sorbate, ethyl maleate, butyl maleate, dibutyl maleate,
Octyl maleate, etc.; Ethyl fumarate, dibutyl fumarate, octyl fumarate, etc.; Halogenated olefins, such as vinyl chloride, vinylidene chloride, isoprene, etc.; Unsaturated nitriles, such as acrylonitrile,
Examples include methacrylonitrile, and two or more types can be used if necessary.

Among these, preferred from the viewpoint of hydrophilicity of the resulting polymer are acrylic acid, methacrylic acid, 2-hydroxyethyl acrylate, 2-methoxyethyl acrylate, sulfopropylacrylate, acrylamide, dimethylacrylamide, and 2-acryloylamino-2 -Methylpropanesulfonic acid, hydroxyethylacrylamide, methacrylamide, methyl vinyl ether, sodium styrene sulfonate, sodium styrene sulfinate N
-vinyl-3,5-dimethyltriazole, maleic anhydride, etc.

The molecular weight of the polymer compound used in the present invention is usually about 200.
0 or more, and those having a molecular weight of about 5,000 to 2,000,000 can be used in a wide range, and there are no particular restrictions on the molecular weight.

The amount of the polymer compound used in the present invention is determined by the effect of the present invention,
From 0.1% to 20% by weight based on the gelatin solid content of the layer to which the polymer compound is added in terms of coating solution viscosity and setting properties.
Preferably, weight percentages are used.

Next, examples of polymeric compounds used in the present invention will be given, but the present invention is not limited to these. (The numbers outside the parentheses represent the molar ratio of the comonomers.) -11 Margin below Black colloidal silver used in the black colloidal silver-containing layer according to the present invention is disclosed in, for example, U.S. Patent No. 2,688,601,
It can be easily prepared by the previously known method described in German Patent No. 1,096,193.

The black colloidal silver particles used in the present invention preferably consist of a polydisperse with a diameter of 30 to 200 mμ, and the optical properties thereof vary depending on the preparation conditions of the colloidal silver.
In terms of sharpness, the spectral transmission density of colloidal silver that can be used in the present invention has a relative value of 0.50 to 1.50 at 450 nm, when the value at 550 nm is 1.00.
In addition, the relative value at 650 nm is preferably 0.60 or more, and the spectral transmission density value at 550 nlD is preferably 1
．． 00, the relative value at 450nI11 is 0.70
The relative value at 1.00.650 nm is particularly preferably 1.00 or more. If you want to express these values in concrete terms, it is 550.
Transmission density in nm is 0.50-0.90, also 450n
The value at m is 0.35 ~ 0.90. The value at 650 nm is 0
．． 50 or more is particularly preferred.

The coating amount of black colloidal silver is preferably 1 in terms of silver.
1.05 to 0.40z/m2, particularly preferably 0
°lO~0.30.

Desilvering properties and anti-halation properties in the development process include:
The above-mentioned range is preferable from the viewpoint of the clarity of data when forming the photographing date and time by optical exposure from the back side of the silver halide color photographic light-sensitive material as suitable for an auto-date camera.

The polymer compound used in the present invention includes at least one layer of a group of light-sensitive silver halide emulsion layers having substantially the same color sensitivity that are adjacent to the black colloidal silver-containing layer and/or a black colloidal silver-containing layer. Adding it to a layer has a great effect, and it is particularly preferable to add it to a silver halide emulsion layer adjacent to a black colloidal silver-containing layer from the viewpoint of effectiveness.

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.

In the present invention, at least a portion of the silver halide grains may contain a desensitizer.

To explain in more detail, in the present invention, in order to obtain a wide exposure latitude, it is possible to mix and use silver halide grains with different average grain sizes, but instead of using low-sensitivity silver halide grains with a small grain size, If silver halide grains containing a desensitizer are used, the difference in average grain size can be reduced without changing the sensitivity of the silver halide grains, and silver halide grains with the same average grain size but different sensitivities can be produced. It is also possible to use a mixture of.

That is, by using silver halide grains containing a desensitizer, a wide exposure latitude can be obtained even if the coefficient of variation of the entire grain is made small. Therefore, these silver halide grains having a small coefficient of variation that are exposed to the same environment are preferred because their photographic performance is stabilized against changes over time and fluctuations in development processing. Furthermore, from the viewpoint of production technology, it becomes possible to chemically sensitize a mixed system of silver halide grains with different sensitivities in the same batch.

Various desensitizers can be used in addition to metal ions, such as antifoggants, stabilizers, and desensitizing dyes, but metal ion doping is particularly preferred.

The metal ion used for doping is Cu.

Cd, 2n, Pb, Fe, TfL, Rh, Bi, I
Examples include metal ions such as r, Au, Os, and Pd. These metal ions can be used, for example, as herodene complex salts, etc., and can also be used in combination of two or more types. The pH of the suspension system is preferably 5 or higher.

In addition, the doping amount of these metal ions varies depending on the type of metal ion, the particle size of the silver halide grains, the doping position of the metal ion, the desired sensitivity, etc.
10-17 to 1O-2 mol is preferable per 1 mol,
Particularly preferred is 10-16 to 10-4 mol.

In addition, when the metal ion is Rh ion, 10-14 to 1
0"' mole is preferred, and 10-If to 10-4 mole is particularly preferred. Furthermore, by selecting the type of metal ion, the doping position, and the doping amount, various different sensitivity qualities can be imparted to the silver halide grains. be able to.

If the doping amount is less than 10-2 mol/^g Silver particles can be prepared.

It is also possible to prepare silver halide grains with different doping conditions so that they can be put to practical use, and then mix them in a predetermined quantitative ratio to form the same batch and apply chemical sensitization. Each silver halide grain receives a sensitizing effect based on its properties, and an emulsion having a wide latitude can be obtained depending on the sensitivity difference and mixture ratio.

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

Emulsion layers, other hydrophilic colloid layers can be hardened and also contain plasticizers, water-insoluble or! It is also possible to include a dispersion (latex) of i'lf-soluble synthetic polymers.

A coupler is used in the emulsion layer of a light-sensitive material for color photography. Furthermore, by coupling with colored couplers, competitive couplers, and oxidized forms of developing agents, which have a color correction effect, it is possible to create development accelerators, white accelerators, developing agents, halogenated solvents, toning agents, and hardening films. agent, fogging agent, antifogging agent,
Compounds that release photographically useful fragments such as chemical 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. A dye may be contained in these layers and/or the emulsion layer.

A formalin scavenger-1 fluorescent whitening agent, a matting agent, a lubricant, an image stabilizer, a surfactant, a color fog preventive agent, a development accelerator, a development retardant, a bleach accelerator, etc. can be added to the photosensitive material.

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

To obtain a dye image using the photosensitive material of the present invention, after exposure,
Commonly known color photographic processing can be performed.

Examples] Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited thereto.

In all the examples below, the amount added in the silver halide photographic light-sensitive material is expressed in grams per 1 m' unless otherwise specified. In addition, silver halide and colloidal silver are shown in terms of silver.

Example 1 Sample 101, a multilayer color photographic element, was prepared by sequentially forming layers having the compositions shown below on a triacetyl cellulose film support from the support side.

Sample-101 (comparison) 1st layer: Antihalation R (HC-1) black colloidal silver 0.20 ultraviolet absorber (LIV-
1) 0.20 colored coupler (CC
-1) 0.05 colored coupler (CM-
1) 0.05 high boiling point solvent (Oil-1)
0.2G gelatin
1.5 Second layer; Intermediate layer (IL-1) Ultraviolet absorber (tlV-1) 0.01
High boiling point solvent (Oil-1) 0.01 Gelatin 1.5; Low sensitivity red-sensitive emulsion layer (RL) Silver iodobromide emulsion (Em-1-■) 0.6 Silver iodobromide emulsion (Em-2- ■) 0.2 Sensitizing dye (SD-1) 4. OX 10-'
(mol/silver 1 mol) Sensitizing dye (SD-2) 4
．． OX 10-' (mol/silver 1 mol) Sensitizing dye (SD
-3) 0.8X10-' (mol/silver 1 mol) Cyan coupler (C-1) 0.85
Colored cyan coupler (CG-1) 0.06D
IR compound (D-1) 0.004 High boiling point solvent (Oil-1) 0.8 Gelatin 1.5 3rd layer 4th layer; High sensitivity red-sensitive emulsion layer (RH) Silver iodobromide emulsion (Em-3 -■) Sensitizing dye (50-113,5Xl0-' (mol/silver sensitizing dye (SD-2) 3.5 Xl0-' (mol/silver sensitizing dye (50-3) 0.2 Xl0-' (mol/
Silver cyan coupler (C-2) Cyan coupler (C-3) Colored cyan coupler (CG-1) DIR compound (D-2) High boiling point solvent (Oil-1) Gelatin 5th layer; intermediate layer (IL-2) 6th gelatin layer; low-sensitivity green-sensitive emulsion layer (GL) silver iodobromide emulsion (Em-1-■) sensitizing dye (SD-4) 8. OXl0-' (mol/silver sensitizing dye (SD-5) 1.6 mole) 1 mole) 1 mole) 0.16 0.02 0.03 0.007 0.2! , 3 0.7 0.6 1 mol) 1 mol) 0.1 0.2 0.1 DIR compound (D-3) DIR compound (D-4) High boiling point solvent (OII-2) Gelatin seventh layer; High-sensitivity green-sensitive emulsion layer (GH) Silver iodobromide emulsion (Em-3-■) Sensitizing dye (SD-6) 2.7 Xl0-' (mol/
Silver sensitizing dye (SD-7) 4.5 Xl0-'C mol/silver sensitizing dye (SD-8) 1. OX to-' (mol/silver magenta coupler (M-2) colored magenta coupler (CM-2) DIR compound (
D-31 High boiling point solvent (Oil-2) Gelatin 8th layer; Yellow filter layer (yc) Yellow colloid silver stain inhibitor (SC-1) High boiling point solvent (Oil-3) Gelatin 9th layer: Low sensitivity blue sensitivity Emulsion layer (BL) 0.7 1 mol) 1 mol) 1 mol) 0.09 0.04 0.006 0.5 1.0 0.1 0.1 0.1 0.8 Silver iodobromide emulsion ( Em-1-■) Silver iodobromide emulsion (Em-2-■) Sensitizing dye (SO-10) 1. IX Yellow coupler (Y-1) Yellow coupler (Y-2) 0111 compound (D-2) High boiling point solvent (Oil-3) Gelatin 10th layer; High sensitivity blue-sensitive emulsion layer Silver iodobromide emulsion (Em-3 -■) Silver iodobromide emulsion (Em-1-■) Sensitizing dye (SO-9) I X Sensitizing dye (SD-10) 3 X Yellow coupler (Y-1) Yellow coupler (Y-2) High Boiling point solvent (Oil-3) Gelatin 11th layer; 1st protective layer (PRO-1) (BH) 0.25 0.1O to-3 (mol/silver 1 mol) 0.5 0.1 0.01 0 .3 1.0 0.3 0.1 to-' (mol/1 mole of silver) 10-' (mol/1 mole of silver) 0.30 0.05 0.07 1.1 Fine grain silver iodobromide emulsion ( Average particle size 0.08 μm g1 0.2 2 mol%) Ultraviolet absorption analysis (UV-1) Ultraviolet absorption analysis (IJV-2) High boiling point solvent (Oil-1) High boiling point solvent (Oil-4) Formalin scavenger (H5-1) Formalin scavenger ()Is-2) Gelatin 12th layer; 2nd protective layer (PRO-2) Surfactant (Su-1) 0.10 0.05 0.1 0.1 0 .5 0.2 1.0 0.005 Alkali-soluble matting agent 0.05 (average particle size 2 μm) Polymethyl methacrylate θ, Q5 (average particle size 3 μm) Sliding agent (WAX-1) 0.04 Gelatin 0 .5 In addition to the above composition, each layer contains coating aid 5u-2, dispersion aid 5u-3,
and 5u-4, hardener) 1-1.

Hardener H-2, stabilizer ST-1, antifoggant AF-1
was added.

Em-1-■ Average grain size 0.46 μm Average silver iodide content 7.0 mol% Monodisperse (width of distribution 18%) surface low silver iodide (2,0
Em-2-■ Emulsion containing (mol%) Average grain size 0.30 μm Average silver iodide content 2.0 mol% Monodisperse (width of distribution 18%) surface silver bromide emulsion Em-3 -■ Average grain size 0.81 μm Average silver iodide content 7.0 mol% Monodisperse (width of distribution 16%) surface low silver iodide (1,0
Margin below the emulsion containing mol%) - (CzHs)J@C6F+7SO3” (margin below) Next, Sample 105 and Sample 101 excluding the second layer of Sample 101, and Sample 102 to which the first layer of Sample 105 is added with the polymer compound shown in Table 1. 104.106~1
10 were produced.

Each sample thus prepared was subjected to rectangular Helium chart exposure using white light, and then subjected to the following development treatment.

Processing process (38℃) Color development 3 minutes 15 seconds (white paper)
Wash with water for 6 minutes and 30 seconds
3 minutes 15 seconds fixation 6 minutes 30 seconds washing 3 minutes 15 seconds stabilization
Drying for 1 minute and 30 seconds The composition of the treatment liquid used in each treatment step is as follows.

[Color developer] 4-amino-3-methyl-N-ethyl -N-(β-hydroxyethyl) Aniline/sulfate anhydrous sodium sulfite Hydroxylamine・1/2 Anhydrous potassium carbonate sodium bromide sulfate 4.75g 4.25g 2.0 g 37.5 g 1.3 g Nitrilotriacetic acid trisodium salt (monohydrate salt) potassium hydroxide Add water and bring to 1°C.

[White liquor] 2.5 g 1.0 g Ethylenediaminetetraacetic acid iron (III) ammonium salt 100.0 g Ethylenediaminetetraacetic acid diammonium salt 10.0 g Ammonium bromide 150.0 g Glacial acetic acid 10mJ2 Add water te1
1 and adjust the pH to 6.0 using aqueous ammonia.

[Fixer] Ammonium thiosulfate Anhydrous sodium sulfite 175.0 8.5 g Sodium metasulfite 2.3 g Add water to make 1λ, and adjust to pl=e, o using acetic acid.

[Stable night] Formalin (37% aqueous solution) 1.5 m
ft Konidax (Konica IJ) 7.5
[Add 11ρ water to make 11.

The MTF value of the obtained treated sample was measured in the following manner.

The results obtained are shown in Table 1.

[Measurement method of MTF value] Regarding sharpness, the sample exposed to rectangular wave chart was measured using a Sakura microdensitometer, model PDM-5 type AR (manufactured by Konica), with a slit width of 300 μm vertically and 2 horizontally.
The density is measured using a slit with a width of μ0, the resolving power for incident light is determined as a percentage value, and from this value M T F (Mod
elation Transfer Func-tio
n) value was determined. M when the spatial frequency is 30 trees/+uIn
It is shown as a relative value of TF (Sample 101 is set as 100).

To determine fog during high-temperature storage, each sample was left at 55° C. for 7 days, exposed using a wedge of white light, and subjected to the above development process to determine the minimum density.

In addition, in Table 1, comparative sample 1 is shown for ease of comparison.
In order to show how much the fog density differs between No. 01 and each sample of the present invention, relative values of fog on the sample are shown with O as a reference.

As is clear from Table 1, samples 107 to 11 of the present invention
0 has higher sharpness and less thermal fog than the comparative sample. Regarding Comparative Samples 101 to 104 having the second layer, not only the sharpness was low, but even when the polymer compound according to the present invention was added, no effect on thermal fogging was observed.

Samples 105 to 110 that do not have a second layer include a sample that does not contain a polymer compound (No. 105) and a sample that uses a polymer compound (sodium polyacrylate) that does not have physical inhibition properties (No. 106). It can be seen that although the sharpness is high, the thermal fog is large.

In this way, when the black colloidal silver layer contains a polymer compound having physical inhibition properties, it has a great effect on the occurrence of thermal fog when the emulsion layer is in direct contact with the black colloidal silver layer.

In addition, instead of the polymer compound P-4 of sample 10B, P-
The effects of the present invention were also observed when Samples No. 2, P-3, and P-10 were used.

Example 2 Samples 111 to 117 were prepared by adding the polymer compounds listed in Table 2 to the first layer, third layer, and/or fourth layer of Samples 101 and 105 of Example 1.

Each sample was exposed and developed in the same manner as in Example 1, and the resulting samples were measured.

The results are shown in Table 2.

As is clear from Table 2, samples 114 to 11 of the present invention
Sample No. 7 has higher sharpness and less thermal fog than the comparative sample. Comparative samples 101.111~ with a second layer
Sample No. 113 has almost no effect on thermal fogging when the polymer compound according to the present invention is added to the silver halide emulsion layer, but comparative sample No. 105 has no effect on thermal fogging when the silver halide emulsion layer is added
As is clear from the comparison between Samples 114 to 117 of the present invention, when the polymer compound according to the present invention was added, a remarkable fog suppressing effect was observed, and samples with excellent sharpness and good storage stability were obtained. Ta. Furthermore, the effect of the polymer compound according to the present invention is greater when it is added to the silver halide emulsion layer adjacent to the black colloidal silver layer.

[Effects of the Invention] As can be seen from the above examples, as in the present invention, by containing a polymer compound having physical inhibition properties in at least one of the black colloidal silver layer and/or the silver halide emulsion layer, , a silver halide color photographic material with excellent sharpness, capri and storage stability can be obtained.

Claims (1)

[Claims] In a silver halide color photographic light-sensitive material having at least a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer and a black colloidal silver-containing layer on a support, the black colloid is The silver-containing layer is adjacent to the support side of the silver halide emulsion located closest to the support, and is adjacent to the black colloidal silver layer and/or at least one of the silver halide emulsion layers. 1. A silver halide color photographic light-sensitive material, characterized in that it contains a polymer compound having physical inhibitory properties.