JP3220831B2 - Silver halide color photographic materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide color photographic light-sensitive material, and more particularly to a silver halide color having excellent rapid processing suitability and sharpness, and having improved pressure fog, curl and bending resistance. It relates to a photosensitive material.

[0002]

2. Description of the Related Art With the spread of color photographic light-sensitive materials, demands for high-quality images are increasing. Under such circumstances, in color print photosensitive materials, researches on color reproducibility, tone reproducibility, sharpness improvement, density unevenness improvement, and the like have been conducted more widely than ever.

[0003] Irradiation and halation are generally known as factors affecting sharpness. The former is caused by scattering of incident light by oil droplets such as silver halide particles and couplers dispersed in a gelatin film, and its degree depends mainly on the amount of gelatin, silver halide and oil droplets. The latter depends on the degree of light reflection from the support, and depends on the reflectance and refractive index of the support.

For prevention of irradiation, improvement of dyes and the like have been performed. For example, JP-A-50-145125,
No. 52-20830, No. 50-111641, No. 61-148448, No. 61-1
Improvements are described in 51650, 62-275562, 62-283336 and the like.

As a method for preventing halation, a method of providing an antihalation layer is known. For example,
Improvements are described in 55-33172, 59-193447 and 62-33448. However, in these methods, sharpness is remarkably reduced along with improvement in sharpness, and it is difficult to improve sharpness while maintaining sufficient sensitivity practically by such means alone.

[0006] Improvements in the support have also been studied. In recent years, as a support for a color print photosensitive material, a water-resistant support in which a polyolefin is laminated on a base paper surface for speeding up the development process has been used, and for sharpness and a white background, a polyolefin layer on the photographic emulsion side is used. Has a white pigment such as titanium oxide dispersed therein. In order to improve sharpness, as shown in JP-A-54-46035, JP-A-64-18144, JP-A-2-71256, etc., a white pigment is added to the polyolefin resin layer on the side to which a photographic emulsion is applied. It is effective to combine the technology using a paper support filled with a large amount of silver halide, but it has disadvantages such as deterioration of the smoothness of the polyethylene layer and deterioration of the adhesion between the polyethylene layer and the emulsion layer. It has been difficult to use it as a support for photographic light-sensitive materials.

Because of these difficulties, techniques for improving sharpness are disclosed in JP-A-58-60738, JP-A-61-9646, and JP-A-61-22.
As described in JP-A No. 1746, JP-A-2-28640, etc., a technique of providing a layer containing a white pigment between a support and a silver halide emulsion layer has been considered.

However, in recent years, a reflective support comprising a resin coating layer on both sides of a base paper, which is mainly used in recent years, is provided with a layer containing a white pigment on one side and a silver halide emulsion layer provided thereon. Silver halide color photographic materials
There has been a problem that curling becomes large and cracks easily occur on the coated surface when bent. If the curl is large, it is likely to stick to one of the rollers when it is sandwiched between rollers when fed by an automatic developing machine, etc. Even if it is necessary to pass through, it is difficult to pass here, and jamming often occurs. Further, if the bending resistance is poor, the occurrence of cracks on the coated surface is liable to occur when a jam or the like occurs.

Further, when the silver halide color photographic light-sensitive material is subjected to pressure such as breaking of nails or being scratched by protrusions, silver halide grains in unexposed areas are developed.
It has been found that a phenomenon called so-called pressure fog tends to occur when a layer containing a white pigment is provided between the support and the silver halide emulsion layer.

In recent years, the color development processing has been increasingly simplified and speeded up, and it has been desired that the processing can be performed quickly and that the processing is stable.

From the viewpoint of speeding up the development processing time, silver bromide, silver chlorobromide and silver chloride containing substantially no silver iodide are used as silver halide emulsions applied to color photographic paper. Have been. It is known that silver halide emulsions having a higher silver chloride content have higher developability and are advantageous for rapid processing.

However, in a silver halide color photographic light-sensitive material having a layer containing a white pigment between silver halide emulsion layers having a silver halide emulsion having a high silver chloride content,
Although it has many advantages such as a great improvement in sharpness, pressure fog is more likely to occur, and in the case of rapid processing, a large curl or poor bending resistance has a fatal defect to the product Therefore, improvement of pressure fog, curl, and bending resistance is strongly desired.

[0013]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an object of the present invention is to provide a silver halide color photographic material having excellent sharpness and low pressure fog.

A second object of the present invention is to provide a silver halide color photographic material having improved curl and bending resistance.

[0015]

The above object of the present invention is achieved by the following means.

A silver halide color photographic photosensitive material having at least one hydrophilic colloid layer containing a white pigment and at least one silver halide emulsion layer on one side of a reflection support having a resin coating layer on both sides of a base paper. A silver halide color photographic light-sensitive material, characterized in that the material contains a hydrophilic polymer in at least one of a hydrophilic colloid layer containing the white pigment and a layer adjacent to the hydrophilic colloid layer.

A silver halide color photographic light-sensitive material having at least one hydrophilic colloid layer containing a white pigment and at least one silver halide emulsion layer on one side of a reflective support having a resin coating layer provided on both sides of a base paper. A silver halide color photographic light-sensitive material, wherein at least one of a hydrophilic colloid layer containing the white pigment and a layer adjacent to the hydrophilic colloid layer is hardened with a polymer hardener.

Hereinafter, the present invention will be described in detail.

The white pigment used in the hydrophilic colloid layer containing a white pigment according to the present invention (hereinafter referred to as white pigment layer) includes, for example, rutile-type titanium dioxide, anatase-type titanium dioxide, barium sulfate, barium stearate,
Although silica, alumina, zirconium oxide, kaolin and the like can be used, titanium dioxide is preferable among them for various reasons. The white pigment is dispersed in a water-soluble binder of a hydrophilic colloid such as gelatin, which can penetrate the treatment liquid, and is applied as a white pigment layer.

The coating amount of the white pigment is preferably 1 g
/ M ² to 50 g / m ² , more preferably 2 g
/ M ² to 20 g / m ² .

The white pigment layer according to the present invention comprises a support,
It can be provided between the support and the nearest silver halide emulsion layer. Between the support and the silver halide emulsion layer closest to the support, besides the white pigment layer, a non-photosensitive hydrophilic layer such as an undercoat layer or an intermediate layer may be provided on the support, if necessary. An aqueous colloid layer can be provided.

The white pigment layer according to the present invention preferably has a porosity of 5 to 30% by weight based on the hydrophilic colloid layer. The porosity is determined from the specific gravity, the film thickness and the like.

The white pigment layer according to the present invention may contain, in addition to the white pigment, a colorant such as yellow, gray, blue, and black colloidal silver, an inorganic colored pigment, an organic colored pigment, and a dye.

A colorant-containing hydrophilic colloid layer can be provided between the white pigment layer according to the present invention and the support. As the coloring agent, various known filter dyes can be used in addition to yellow, gray, blue, and black colloidal silver. As such a light-absorbing substance, a substance that absorbs only light in the entire visible spectrum region can be used, or a substance that selectively absorbs only light in a certain partial region can be used. You can choose. The transmittance of the colorant-containing hydrophilic colloid layer is preferably 50% or less, particularly preferably 30% or less.

The hydrophilic polymer according to the present invention includes, for example, a synthetic hydrophilic polymer and a natural hydrophilic polymer, and both can be preferably used. Among them, examples of the synthetic hydrophilic polymer include those having a nonionic group in the molecular structure, those having an anionic group, and those having a nonionic group and an anionic group. As the nonionic group, for example, an ether group,
Examples include an ethylene oxide group and a hydroxy group, and examples of the anionic group include a sulfonic acid group or a salt thereof, a carboxylic acid group or a salt thereof, and a phosphate or a salt thereof.

As these synthetic hydrophilic polymers, not only homopolymers but also copolymers with one or more monomers may be used. Further, the copolymer may be a copolymer with a partially hydrophobic monomer as long as the copolymer itself retains water solubility. However, the composition of the copolymer is subject to some restrictions depending on the place and amount of addition. That is, especially when a large amount is added to the emulsion layer,
It is necessary to limit the composition range so as not to cause side effects due to the addition.

The natural hydrophilic polymers include, for example, those having a nonionic group, those having an anionic group, and those having a nonionic group and an anionic group in the molecular structure.

In the present invention, the water-soluble polymer may be soluble in 0.05 g or more, preferably 0.1 g or more, in 100 g of water at 20 ° C.

As the synthetic hydrophilic polymer, a repeating unit represented by the following general formula [P-1] may have 10 to 10 per molecule of the polymer.
0 mol%.

[0030]

Embedded image

In the formula, R ₁ and R ₂ may be the same or different and each is a hydrogen atom, an alkyl group, preferably an alkyl group having 1 to 4 carbon atoms (including those having a substituent), and a halogen. Represents an atom or —CH ₂ COOM, and L ₁ represents —
CONH-, -NHCO, -COO-, -OCO-, -CO-, -SO
_2- , -NHSO _2- , -SO ₂ NH- or -O-
Is an alkylene group, preferably an alkylene group having 1 to 10 carbon atoms (including those having a substituent), an arylene group (including those having a substituent), and an aralkylene group (including those having a substituent). included.),

[0032]

Embedded image

M represents a hydrogen atom or a cationic group;
₉ represents an alkyl group having 1 to 4 carbon atoms (ethyl);
R ₃ , R ₄ , R ₅ , R ₆ , R ₇ and R _{8 each} represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group, a phenyl group,
Represents an aralkyl group, X represents an anion, and p and q each represent 0 or 1. Particularly, a polymer containing acrylamide or methacrylamide is preferable.

Y represents a hydrogen atom or-(L ₁ ) p- (J) q-W.

The synthetic hydrophilic monomer of the present invention can be copolymerized with an ethylenically unsaturated monomer. Examples of the copolymerizable ethylenically unsaturated monomer include styrene, alkylstyrene, hydroxyalkylstyrene (alkyl group having 1 to 4 carbon atoms), vinylbenzenesulfonic acid and a salt thereof, α-methylstyrene, 4-methylstyrene, Pinylpyridine, N-vinylpyrrolidone, monoethylenically unsaturated esters of aliphatic acids, ethylenically unsaturated monocarboxylic or dicarboxylic acids and salts thereof, maleic anhydride, esters of ethylenically unsaturated monocarboxylic or dicarboxylic acids And amides of ethylenically unsaturated monocarboxylic or dicarboxylic acids.

Next, specific examples of the synthetic hydrophilic polymer represented by the general formula [P-1] will be described.

[0037]

Embedded image

[0038]

Embedded image

[0039]

Embedded image

[0040]

Embedded image

[0041]

Embedded image

[0042]

Embedded image

[0043]

Embedded image

[0044]

Embedded image

[0045]

Embedded image

[0046]

Embedded image

[0047]

Embedded image

[0048]

Embedded image

[0049]

Embedded image

[0050]

Embedded image

[0051]

Embedded image

[0052]

Embedded image

In the above P-1 to P-61, x,
y and z represent mol% of each monomer component, and M represents an average molecular weight (in the present specification, the average molecular weight indicates a number average molecular weight).

The most useful polymer for practicing the present invention generally has an average molecular weight of about 1,000 to about 1,000,000 as described above.

The natural hydrophilic polymer is described in detail in a comprehensive technical data collection of water-soluble polymer water-dispersible resin (publishing section of Business Development Center), but lignin, starch, brulan, cellulose, alginic acid, dextran, Preference is given to dextrin, guar gum, gum arabic, pectin, casein, agar, xanthan zam, cyclodextrin, locust bean gum, tragan gum, carrageenan, glycogen, laminaran, lichenin, nigellan, and derivatives thereof.

Derivatives of natural hydrophilic polymers include those sulfonated, carboxylated, phosphorylated, sulfoalkylated, or carboxyalkylated, alkylphosphorylated, and salts thereof, and polyoxyalkylenes (eg, ethylene, glycerin, etc.). , Propylene, etc.)
Alkylation (methyl, ethyl, benzylation, etc.) is preferred.

These natural hydrophilic polyoxyalkylenes may be used in combination of two or more.

Among the natural hydrophilic polymers, glucose polymers and derivatives thereof are preferred. Among the glucose polymers and derivatives thereof, starch, glycogen, cellulose, lichenin, dextran, nigeran and the like are preferred, and dextran is particularly preferred. And derivatives thereof are preferred.

Dextran is a polymer of α-1,6-linked D-glucose and is generally obtained by culturing dextran-producing bacteria in the presence of saccharides. Dextran-producing bacteria such as leuconostoc, mesenteroides, etc. Can be obtained by reacting the separated dextran sucrose with the saccharide from the culture solution of the above. In addition, these native dextrans are reduced to a desired molecular weight by a partial decomposition polymerization method using an acid or an alkaline enzyme, and the intrinsic viscosity is reduced.
Those having a range of 0.03 to 2.5 can be obtained.

The modified dextran includes dextran sulfate, carboxyalkyldextran,
Hydroxyalkyl dextran and the like can be mentioned.
The molecular weight of these natural water-soluble polymers is preferably from 1,000 to 100,000, and particularly preferably from 2,000 to 50,000.

Methods for producing these dextrans and derivatives thereof are described in JP-B-35-11989 and US Pat.
No. 924, Japanese Patent Publication No. 45-12820, No. 45-18418, No. 45-10149
No. 46-31192.

The hydrophilic polymer according to the present invention may be added to at least one of the white pigment-containing layer and the layer adjacent to the white pigment-containing layer. The amount of the water-soluble polymer to be added may be 1 to 1000% by weight, preferably 2 to 200% by weight, based on the hydrophilic colloid such as gelatin used in the layer to be added.

The polymer hardener according to the present invention will be described.

JP-A-56-66841, British Patent 1,322,971
No. 3,671,256, and the like, and James, The Theory of the Photographic Processes by James.
s) 4th edition, p. 84 (1977, Macmillan), by Campbell et al., Polymeric amine and ammonium.
Salts (Campbell etal Polymeric Amine and Ammonium
Salta), pages 321-332 (1979, Pergamon Press). A polymer having a functional group that reacts with gelatin (polymer hardener) is preferable for achieving the object of the present invention because it is a polymer and therefore has diffusion resistance.

As the polymer hardener, [HP-I],
[HP-II] and [HP-III] are preferred.

[0066]

Embedded image

In the formula, A represents an ethylenically unsaturated monomer copolymerizable with the monomer unit shown on the right.

In the formula, R ₃ represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms. Q is -CO ₂
—, —CO—N (R ₃ ) —, wherein R ₃ is the same as described above, or an arylene group having 6 to 10 carbon atoms. L ₂ is a divalent group having 3 to 15 carbon atoms including at least one of —CO ₂ —, —CO—N (R ₃ ) — (where R ₃ is the same as described above). group or -O, -, - N (R 3) -, - CO -, - SO -, - S
O _2- , -SO _3- , -SO ₂ N (R ₃ )-, -N (R ₃ ) CON (R ₃ )-, -N
(R ₃ ) CO ₂ — (R ₃ is the same as defined above), and is any divalent group having 1 to 12 carbon atoms, including at least one bond. R ₄ represents a vinyl group or a functional group serving as a precursor thereof, and —CH ＝ CH ₂ , —CH ₂ CH ₂ X
Is one of X represents a group which can be substituted by a nucleophilic group or a group which can be eliminated in the form of HX by a base.

In the formula, x and y represent mole percentages, x takes a value of 0 to 99, and y takes a value of 1 to 100.

Examples of the ethylenically unsaturated monomer represented by A in the formula [HP-I] include ethylene, propylene, 1-butene, isobutene, styrene, chloromethylstyrene, hydroxymethylstyrene, sodium vinylbenzene sulfonate, Sodium vinylbenzyl sulfonate, N, N, N-trimethyl-N-vinylbenzylammonium chloride, N, N-
Dimethyl-N-benzyl-N-vinylbenzylammonium chloride, α-methylstyrene, vinyltoluene, 4-vinylpyridine, 2-vinylpyridine, benzylvinylpyridinium chloride, N-vinylacetamide, N-vinylpyrrolidone, 1-vinyl- 2-methylimidazole, monoethylenically unsaturated esters of aliphatic acids, ethylenically unsaturated monocarboxylic or dicarboxylic acids and salts thereof,
Examples include maleic anhydride, esters of ethylenically unsaturated monocarboxylic or dicarboxylic acids, and amides of ethylenically unsaturated monocarboxylic or dicarboxylic acids.

When the polymer of the present invention is used as a crosslinked latex, a monomer having at least two copolymerizable ethylenically unsaturated groups as A in addition to the above-mentioned ethylenically unsaturated monomer (A) For example, divinylbenzene, methylenebisacrylamide, ethylene glycol diacrylate, trimethylene glycol acrylate, ethylene glycol dimethacrylate, trimethylene glycol dimethacrylate, neopentyglycol dimethacrylate, etc.) are used.

Examples of R _{3 in} the formula [HP-I] include a timmer group,
Includes ethyl, butyl, and n-hexyl groups.

Q includes the following groups.

[0074]

Embedded image

-SOCH ₂ CH ₂ --CH ₂ SOCH ₂ CH ₂ --SO ₂ CH ₂ CH ₂ --SO ₂ CH ₂ CH ₂ SO ₂ CH ₂ CH ₂ --SO ₂ CH ₂ CH ₂ SO ₂ CH ₂ C (OH) HCH ₂ − −SO ₃ CH ₂ CH ₂ CH ₂ − −SO ₃ CH ₂ CO ₂ CH ₂ CH ₂ − −SO ₃ CH ₂ CH ₂ CO ₂ CH ₂ CH ₂ − −SO ₂ NHCH ₂ CO ₂ CH ₂ CH ₂ − −SO ₂ NHCH ₂ CH ₂ CO ₂ CH ₂ CH ₂ − −NHCONHCH ₂ CH ₂ − −CH ₂ NHCONHCH ₂ CH ₂ − −NHCO ₂ CH ₂ CH ₂ − −CH ₂ NHCO ₂ CH ₂ CH ₂ R ₄ in the formula [HP-I] includes the following groups.

[0076]

Embedded image

In the formula, A is an ethylenically unsaturated monomer unit or a mixture of monomers copolymerizable with the monomer unit shown on the right.

In the formula, x and y represent mole percentages, x takes a value of 10 to 95 percent, and y takes a value of 5 to 90 percent. R ₅ is an alkyl group having a hydrogen atom or 1 to 6 carbon atoms; R ₆ is -CH = CH _2, or a -CH ₂ CH ₂ X. X represents a group which can be substituted by a nucleophilic group or a group which can be eliminated in the form of HX by a base.

L_ThreeIs an alkylene (more preferably 1
Alkylenes having 6 carbon atoms such as methylene,
A linking group selected from ethylene, isobutylene, etc.), 6
Arylenes having from 12 to 12 carbon atoms (eg phenylene)
A linking group selected from len, tolylene, naphthalene, etc.),
Or -COZ- or -COZR₇-, [Where R ₇
Is an alkylene having 1 to 6 carbon atoms, or
Arylene having 6 to 12 carbon atoms, Z is an oxygen atom
Or a NH or a NH).

In the formula [HP-II], examples of A include the formula [HP-II].
I]]. Examples of R _{3 in} the formula [HP-II] include the same examples as R _{3 in the} formula [HP-I]. Examples of R _{6 in} the formula [HP-II] include the same examples as R _{4 in the} formula [HP-I].

Still other preferred polymeric hardeners are disclosed in British Patent
As described in No. 1,534,455, the following formula (HP-III)
And a repeating unit represented by

[0082]

Embedded image

A represents an ethylenically unsaturated monomer unit copolymerizable with the monomer unit shown on the right;
R is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and L ₄ is a divalent linking group having 1 to 20 carbon atoms (more preferably at least one of -CONH- or -CO- bond). X is an active ester group; x and y are mole percentages, x is a value from 0 to 95, y is a value from 5 to 100, and m is 0 or 1 It is.

Examples of A in the formula [HP-III] include the formula [HP-III]
I]].

R ₈ of the formula [HP-III] is substituted for R ₈ of the formula [HP-I].
_The same as example ₃ is included and described above.

L ₄ in the formula [HP-III] includes the following groups.

-CONHCH _2- , -CONHCH ₂ CH _2- , -CONHCH ₂
CH ₂ CH ₂ −, −CONHCH ₂ CH ₂ CH ₂ CH ₂ CH ₂ −, −COCH ₂ CH ₂ OCOCH
₂ CH _2- , -CONHCH ₂ CONHCH _2- , -CONHCH ₂ CONHCH ₂ CONHCH
_{2 -, - COCH 2 -,} - CONHCH 2 NHCOCH 2 CH 2 SCH 2 CH 2 -, - CO
NHCH ₂ OCOCH ₂ CH _2- and the like.

X in the formula [HP-III] includes the following groups.

[0089]

Embedded image

[0090]

Embedded image

[0091]

Embedded image

-CO ₂ CH ₂ CN -CO ₂ CH ₂ CO ₂ C ₂ H ₅ -CO ₂
CH ₂ CONH ₂ —CO ₂ CH ₂ COCH ₃ Specific examples of the compounds that can be used in the present invention are shown below, but the invention is not limited thereto.

[0093]

Embedded image

[0094]

Embedded image

[0095]

Embedded image

[0096]

Embedded image

However, M is a hydrogen atom, a sodium atom or a potassium atom, x and y are the mole percentages of the charged units, respectively, and are not limited to the above. X is 0 to 99, and y is 1 to 100. Can be taken.

For the hardening of the white pigment-containing layer and / or the layer adjacent thereto, the above-described polymer hardener may be used alone, or may be used in combination with a diffusible low-molecular hardener. These diffusible low-molecular hardeners include various organic or inorganic hardeners (alone or in combination). Typical examples are mucochloric acid, formaldehyde, trimethylolmelamine, glyoxal, 2,3- Dihydroxy-1,4
Aldehyde compounds such as -dioxane, 2,3-dihydroxy-5-methyl-1,4-dioxane, succinaldehyde, glutaraldehyde; divinyl sulfone, methylene bismaleide, 1,3,5-triacryloyl-hexahydro-s- Triazine, 1,3,5-trivinylsulfonyl-hexahydro-s-triazine, bis (vinylsulfonylmethyl) ether, 1,3-
Active vinyl compounds such as bis (vinylsulfonyl) -propanol-2, bis (α-vinylsulfonylacetamido) ethane, 1,2-bis (vinylsulfonyl) ethane and 1,1′-bis (vinylsulfonyl) methane; 2 Active halogen compounds such as 2,4-dichloro-6-hydroxy-s-triazine; 2,4,6
And gelatin hardeners well known in the art such as -ethyleneimine compounds such as -triethyleneimino-s-triazine.

As a method of adding a polymer hardener, a hardener dissolved in water or an organic solvent is directly added to a layer whose hardness is to be controlled. When a diffusible hardener is used in combination, it may be added to the layer to which the polymer hardener is added,
It may be added to another layer and diffused to all layers. The addition amount of the diffusion-resistant polymer hardener is determined by the amount of the reactive group of the polymer hardener.

The silver halide grains used in the present invention may be silver halide grains having an arbitrary halogen composition. However, from the viewpoint of suitability for rapid processing, 95% or more of the total silver halide constituting silver halide grains is substantially silver chloride. Silver halide grains composed of silver chlorobromide containing no silver iodide are preferred.

The silver halide emulsion according to the present invention can contain heavy metal ions. Heavy metal ions used include iron, iridium, platinum, palladium,
Examples include Group 8 to 10 metals such as nickel, rhodium, osmium, ruthenium, and cobalt; and Group 12 transition metals such as cadmium, zinc, and mercury; and ions of lead, rhenium, molybdenum, tungsten, and chromium. . Among them, transition metal ions of iron, iridium, platinum, ruthenium, and osmium are preferable. These metal ions can be added to the silver halide emulsion in the form of a salt or a complex salt.

The silver halide grains according to the present invention may have any shape. One preferred example is
It is a cube having the (100) plane as the crystal surface. Also,
U.S. Pat.Nos. 4,183,756 and 4,225,666, JP-A-55-26589
No. 55-42737, The Journal of Photographic Science (J.Photogr.Sci.) 21, 39
Octahedron, by methods described in documents such as (1973)
Particles having a shape such as a tetradecahedron or a dodecahedron can be prepared and used. Further, particles having a twin plane may be used.

As the silver halide grains according to the present invention, grains having a single shape may be used, or grains having various shapes may be mixed.

The grain size of the silver halide grains according to the present invention is not particularly limited, but is preferably 0.1 to 1.2 μm, more preferably 0.2 to 1.2 μm, in consideration of other photographic properties such as rapid processing and sensitivity. 1.01.0 μm. The particle size can be measured by various methods generally used in the technical field. A typical method is Loveland's “Particle Size Analysis Method” (ASTM Symposium on Right Microscopy, 94-122).
Page, (1955)) or "Theory of Photographic Process, Third Edition"
(Mies and James co-authored, Chapter 2, published by Macmillan, (1966)).

The particle diameter can be measured by using the projected area of the particle or an approximate value of the diameter. If the particles are substantially uniform in shape, the particle size distribution can represent this quite accurately as diameter or projected area.

The particle size distribution of the silver halide grains of the present invention may be polydisperse or monodisperse.

As the apparatus and method for preparing a silver halide emulsion, various methods known in the art can be used.

The silver halide emulsion according to the present invention may be obtained by any of an acidic method, a neutral method and an ammonia method. The particles may be grown at one time or may be grown after seed particles have been made. The method of producing the seed particles and the method of growing them may be the same or different.

The form in which the soluble silver salt and the soluble halide salt are reacted may be any of a forward mixing method, a reverse mixing method, a simultaneous mixing method, a combination thereof, and the like. Is preferred. As one type of the double jet method, a pAg controlled double jet method described in JP-A-54-48521 can be used.

If necessary, a silver halide solvent such as thioether may be used. Further, a compound having a mercapto group, a nitrogen-containing heterocyclic compound or a compound such as a sensitizing dye may be added at the time of forming silver halide grains or after the completion of grain formation.

As the silver halide emulsion according to the present invention, any silver halide emulsion, such as a surface latent image type silver halide emulsion and an internal latent image type silver halide emulsion in which a latent image is formed inside a grain, can be used. Can be.

The amount of silver applied to the silver halide color photographic light-sensitive material used in the present invention is desirably 1.5 g / m ² or less.

The silver halide emulsion according to the present invention can use a sensitization method using a sulfur compound, a sensitization method using a gold compound, and a sensitization method using both a sulfur compound and a gold compound. As the sulfur sensitizer applied to the silver halide emulsion according to the present invention, thiosulfate, allylthiocarbamide urea,
Allyl isothiocyanate, cystine, p-toluenethiosulfonic acid, rhodanine, inorganic sulfur and the like can be mentioned.

As the gold sensitizer applied to the silver halide emulsion according to the present invention, various gold complexes such as chloroauric acid and gold sulfide and the above-mentioned gold compounds can be preferably used.

The silver halide emulsion according to the present invention is intended to prevent fogging during the preparation process of the silver halide photographic light-sensitive material, to reduce performance fluctuation during storage, and to prevent fogging during development. A known antifoggant,
Stabilizers can be used. Examples of compounds that can be used for such purposes include JP-A-2-46036.
Compounds represented by the general formula (II) described in the lower column of the page can be exemplified, and specific compounds thereof include (IIa-1) to (IIa-8) described on page 8 of the publication. , (IIb-
Compounds of 1) to (IIb-7) and compounds such as 1- (3-methoxyphenyl) -5-mercaptotetrazole and 1- (4-ethoxyphenyl) -5-mercaptotetrazole can be mentioned. These compounds, depending on their purpose,
It is added in the steps of preparing the silver halide emulsion grains, the chemical sensitization step, the completion of the chemical sensitization step, and the coating liquid preparation step.

The support used in the present invention is a paper support based on paper and having a resin layer on both sides, and the resin layer on the side on which the silver halide emulsion layer is coated contains a white pigment. Paper support.

The base paper used in the paper support of the present invention can be selected from raw materials generally used for photographic printing paper. Examples include natural pulp, synthetic pulp, a mixture of natural pulp and synthetic pulp, and various raw materials for laminated paper. Generally, natural pulp mainly composed of softwood pulp, hardwood pulp, and mixed pulp of softwood pulp and hardwood pulp can be widely used. Neutral paper, acidic paper and any other materials may be used.

The thickness of the paper is preferably from 40 μm to 250 μm.

Further, the support may contain additives generally used in papermaking, such as a sizing agent, a fixing agent, a tension enhancer, a filler, an antistatic agent, a dye and an antifoggant. Further, a surface sizing agent, a surface tension agent, an antistatic agent or the like may be appropriately applied to the surface.

As a method of applying a resin coating layer on the support used in the present invention, a method of laminating a polyolefin resin or a polyethylene terephthalate resin or the like is known.

The olefin resin mainly used for lamination can be selected from ethylene, α-olefins and a mixture of at least two of them. Among them, polyolefin resins widely used are low density polyethylene, high density polyethylene or a mixture thereof.

In general, a resin laminate can be formed by melt extrusion coating a resin composition on a support. In order to carry out the melt extrusion coating method, the resin composition is usually melt-extruded on a running support from a slit die of an extruder into a single layer or a plurality of layers. Usually, the melt extrusion temperature is preferably from 200 to 250 ° C.

The thickness of the resin coating layer is not particularly limited, and is usually 15 to 60 μm.

The white pigment used in the resin coating layer of the support used in the present invention includes, for example, rutile-type titanium dioxide, anatase-type titanium dioxide, barium sulfate, and the like.
Barium stearate, silica, alumina, zirconium oxide, kaolin and the like can be used, and titanium dioxide is particularly preferable.

The titanium dioxide may or may not be surface-treated with aluminum hydroxide, alcohol, a surfactant or the like. These white pigments are usually contained in an amount of 16% by weight or less, preferably 13% by weight or less, more preferably 10% by weight or less, based on the resin of the resin coating layer on the side of the reflective support on which the photographic emulsion is coated. Most preferred is no more than 7% by weight.

The silver halide color photographic light-sensitive material according to the present invention includes a layer containing a silver halide emulsion spectrally sensitized to a specific region of a wavelength region of 400 to 900 nm in combination with a yellow coupler, a magenta coupler, and a cyan coupler. Having. The silver halide emulsion contains one kind or a combination of two or more kinds of sensitizing dyes.

As useful sensitizing dyes, cyanine dyes,
Merocyanine dyes and complex merocyanine dyes.

As the coupler used in the silver halide color photographic light-sensitive material according to the present invention, a coupling product having a spectral absorption maximum wavelength in a wavelength region longer than 340 nm by a coupling reaction with an oxidized form of a color developing agent is used. Although any compound that can be formed can be used, particularly typical ones are a yellow coupler having a spectral absorption maximum wavelength in a wavelength range of 350 to 500 nm, and a magenta coupler having a spectral absorption maximum wavelength in a wavelength range of 500 to 600 nm. , Wavelength range 600-750nm
A typical example is a cyan coupler having a spectral absorption maximum wavelength.

As the yellow coupler, various acylacetanilide couplers and the like can be used.

As the magenta dye-forming coupler, 5-pyrazolone couplers, pyrazolone benzimidazole couplers, pyrazoloazole couplers, open-chain acylacetonitrile couplers and the like can be used.

As the cyan dye-forming coupler, naphthol couplers, phenol couplers, imidazole couplers and the like can be used.

The yellow coupler which can be preferably used in the silver halide color photographic light-sensitive material according to the present invention includes a compound represented by the formula (Y-) described in JP-A-4-114154, page 8.
The couplers represented by I) can be mentioned. Specific compounds include those described as YC-1 to YC-9 on pages 9 to 11 of the same publication. In particular, the gazette
YC-8 and YC-9 described on page 11 are preferable because they can reproduce a preferable yellow color tone, but the present invention is not limited thereto.

The magenta coupler which can be preferably used in the silver halide color photographic light-sensitive material according to the present invention includes a compound represented by the general formula (M-C) described in JP-A-4-114154, page 12.
Couplers represented by I) and (M-II) can be mentioned. Specific compounds are described in pages 13 to 16 of the publication, MC-1 to MC.
-11 can be mentioned.
Above all, couplers represented by the general formula (MI) are particularly preferred for enhancing the effects of the present invention, and specific compounds are described as MC-8 to MC-11 described on pages 15 to 16 of the same publication. However, the present invention is not limited to this.

Cyan couplers that can be preferably used in the silver halide color photographic light-sensitive material of the present invention include compounds represented by the general formula (C-C) described in JP-A-4-114154, page 17.
Couplers represented by I) and (C-II) can be mentioned. Specific compounds are described in pages 18 to 21 of the publication, CC-1 to CC.
However, the present invention is not limited thereto.

When the oil-in-water emulsion dispersion method is used to add the coupler used in the silver halide photographic light-sensitive material according to the present invention, usually, a water-insoluble high-boiling organic solvent having a boiling point of 150 ° C. or more is used. If necessary, a low boiling point and / or water-soluble organic solvent is used in combination to dissolve, and emulsified and dispersed in a hydrophilic binder such as an aqueous gelatin solution using a surfactant.
As a dispersing means, a stirrer, a homogenizer, a colloid mill, a flow jet mixer, an ultrasonic disperser, or the like can be used. After or at the same time as the dispersion, a step of removing the low boiling organic solvent may be added. As a high boiling organic solvent that can be used for dissolving and dispersing the coupler, phthalic acid esters such as dioctyl phthalate and phosphates such as tricresyl phosphate are preferably used.

In place of the method using a high-boiling organic solvent, a coupler and a water-insoluble and organic solvent-soluble polymer compound may be dissolved in a low-boiling and / or water-soluble organic solvent, if necessary, to prepare an aqueous solution of gelatin or the like. A method of emulsifying and dispersing by using various kinds of dispersing means using a surfactant in a hydrophilic binder can also be used. Examples of the water-insoluble and organic solvent-soluble polymer used at this time include poly (Nt-butylacrylamide).

For the purpose of shifting the absorption wavelength of the coloring dye, the compound (d-1) described in JP-A-4-114154, page 33, was used.
1), compounds such as compound (A'-1) described on page 35 of the publication can be used. In addition, other US patents
The fluorescent dye releasing compounds described in 4,774,187 can also be used.

In the silver halide color photographic light-sensitive material of the present invention, gelatin is used as a binder. If necessary, other gelatins, gelatin derivatives, graft polymers of gelatin and other polymers, proteins other than gelatin, A hydrophilic colloid such as a sugar derivative, a cellulose derivative, or a synthetic hydrophilic polymer such as a homopolymer or a copolymer can also be used in combination with gelatin.

The gelatin used in the silver halide color photographic light-sensitive material according to the present invention may be lime-processed gelatin or acid-processed gelatin. Gelatin produced as a raw material may be used, but lime-processed gelatin using bovine bone or pork skin as a raw material is preferred.

In the present invention, the photosensitive silver halide from the silver halide emulsion layer closest to the support on the side where the silver halide emulsion layer is coated to the hydrophilic colloid layer farthest from the support is provided. The total amount of gelatin contained in the emulsion layer and the non-photosensitive hydrophilic colloid layer is desirably 10 g or less per 1 m ^{2 of the} silver halide color photographic light-sensitive material according to the present invention.

The photographic emulsion layer and other hydrophilic colloid layers of the silver halide color photographic light-sensitive material according to the present invention may be used alone or in combination with a hardener for increasing the film strength by crosslinking the binder (or protective colloid) molecules. To be cured.

In addition to the above compounds, various photographic additives can be added to the silver halide color photographic light-sensitive material according to the present invention.

Such examples include, for example, ultraviolet absorbers (eg, benzophenone compounds, benzotriazole compounds, etc.), development accelerators (eg, 1-aryl-3-pyrazolidone compounds, etc.), surfactants (eg, alkyl Naphthalene sulfonates, alkyl succinate sulfonates, etc.), water-soluble irradiation preventing dyes (e.g., azo compounds, styryl compounds, oxonol compounds, etc.), film property improvers (liquid paraffin, polyalkylene glycol, etc.), Examples include color turbidity inhibitors (diffusion-resistant hydroquinone-based compounds, etc.), color image stabilizers (eg, hydroquinone derivatives, gallic acid derivatives, etc.), water-soluble or oil-soluble fluorescent brighteners, and ground color tone adjusters.

In addition, if necessary, a competing coupler, a fogging agent, a development inhibitor releasing coupler (a so-called DIR coupler), a development inhibitor releasing compound and the like can be added.

In the silver halide color photographic light-sensitive material according to the present invention, when the silver halide emulsion layer and the hydrophilic colloid layer used in the present invention are coated on the support used in the present invention, the coatability is improved. Thickeners may be used to achieve this. Extrusion coating and curtain coating, in which two or more layers can be simultaneously applied, are useful as an application method.

In order to form a photographic image using the silver halide color photographic light-sensitive material according to the present invention, an image recorded on a negative is optically transferred onto a silver halide photographic light-sensitive material to be printed. You can image it and print it,
Once the image is converted to digital information, the image is converted to a CRT
(Cathode ray tube), this image may be formed on a silver halide photographic material to be printed and printed, or scanning is performed by changing the intensity of laser light based on digital information. May be baked.

The silver halide color photographic light-sensitive material according to the present invention can form an image by performing a color development process known in the art.

As the aromatic primary amine developing agent used in the present invention, known compounds can be used. The following compounds can be mentioned as examples of these compounds.

(CD-1) N, N-diethyl-p-phenylenediamine (CD-2) 2-amino-5-diethylaminotoluene (CD-3) 2-amino-5- (N-ethyl-N-lauryl Amino) toluene (CD-4) 4-amino-3-methyl-N-ethyl-N- (β-butoxyethyl) aniline (CD-5) 2-methyl-4- [N-ethyl-N- (β- (Hydroxyethyl) amino] aniline (CD-6) 4-amino-3-methyl-N-ethyl-N- [β- (methanesulfonamido) ethyl] -aniline (CD-7) N- (2-amino-5 -Diethylaminophenylethyl) methanesulfonamide (CD-8) N, N-dimethyl-p-phenylenediamine (CD-9) 4-amino-3-methyl-N-ethyl-N-methoxyethylaniline (CD-10) 4-Amino-3-methyl-N-ethyl-N- (β-ethoxyethyl) aniline (CD-11) 4-Amino-3-methyl-N-ethyl-N- (γ-hydroxypropyl) aniline Color developing agent Is usually 1 × 10 per liter of developer
^{-2 to} 2 × 10 ^-1 mol, and from the viewpoint of rapid processing, 1.5 × 10 ^-2 to 2 × 10 ^-1 per liter of the color developing solution.
It is preferably used in the molar range. The color developing agent may be used alone or in combination with other known p-phenylenediamine derivatives.

The color developing solution according to the present invention may contain the following developing solution components in addition to the above components. As an alkali agent, for example, sodium hydroxide, potassium hydroxide, sodium metaborate, potassium metaborate, trisodium phosphate, tripotassium phosphate, borax or silicate alone or in combination, without precipitation , P
They can be used together within a range that maintains the H stabilizing effect. Further, for the purpose of preparation or for the purpose of increasing ionic strength, disodium hydrogen phosphate,
Various salts such as dipotassium hydrogen phosphate, sodium bicarbonate, potassium bicarbonate, and borate can be used.

In addition, if necessary, inorganic and organic antifoggants can be added.

For the purpose of suppressing development, halide salt ions are often used, but chloride ions are mainly used to complete development in a very short time, and potassium chloride, sodium chloride and the like are used. Used.

Furthermore, if necessary, a development accelerator can be used. U.S. Pat.
648,604, 3,671,247, various pyridinium compounds represented by JP-B-44-9503, other cationic compounds, cationic dyes such as phenosafranine, neutral salts such as thallium nitrate, U.S. Pat. No.
No. 2,531,832, 2,950,970, 2,577,127 and JP-B-44-9504, nonionic compounds such as polyethylene glycol and its derivatives, polythioethers, etc.
Organic solvents, organic amines, ethanolamine, ethylenediamine, diethanolamine, triethanolamine and the like described in No. 44-9509 are included. Also, U.S. Patent 2,304,92
No. 5, phenethyl alcohol, acetylene glycol, methyl ethyl ketone, cyclohexanone, pyridine, ammonia, hydrazine, thioethers, amines and the like.

Further, a color developing solution may be used, if necessary, with ethylene glycol, methyl cellosolve, methanol, acetone, dimethylformamide, β-cyclodextrin, and others described in JP-B-47-33378 and JP-B-44-9509. The compound can be used as an organic solvent for increasing the solubility of the developing agent.

Further, an auxiliary developer can be used together with the developing agent. These auxiliary developers include, for example, N-methyl-p-aminophenol sulfate, phenidone, N, N′-diethyl-p-aminophenol hydrochloride, N, N,
N ', N'-tetramethyl-p-phenylenediamine hydrochloride and the like are known.
0.01-1.0 g is used per liter.

Each component of the color developing solution can be prepared by sequentially adding and stirring a certain amount of water. In this case, the component having low solubility in water can be added as a mixture with the above-mentioned organic solvent such as triethanolamine. More generally, a color developing solution is prepared by adding a concentrated aqueous solution containing a plurality of components each of which can stably coexist or a solution prepared in advance in a small container in a solid state in water, followed by stirring. Can also.

In processing the silver halide color photographic light-sensitive material according to the present invention, a color developing solution is adjusted to an arbitrary pH.
Although it can be used in the range, the pH is preferably from 9.5 to 13.0, more preferably from 9.5 to 12.0, from the viewpoint of rapid processing.

The processing temperature for color development according to the present invention is 15 ° C.
As described above, the treatment is preferably performed at a temperature of 45 ° C. or lower, particularly preferably at a temperature of 20 ° C. or higher and 45 ° C. or lower.

The color development time is usually within 3 minutes and 30 seconds, but it is preferably within 1 minute for rapid processing.

When the silver halide photographic light-sensitive material according to the present invention is subjected to a running process while continuously replenishing a color developing solution, the overflow of the color developing solution is reduced,
In order to reduce the environmental destruction caused by the waste liquid, the replenishment amount of the color developing solution is preferably 20 to 150 ml per 1 m ² of the photosensitive material. More preferably, the replenishing amount is such that waste liquid is not substantially generated due to overflow. The specific replenishing amount is 20 to 20 m ² per 1 m ² of the light-sensitive material.
More preferably, it is 60 ml.

The silver halide photographic light-sensitive material of the present invention is subjected to bleaching and fixing after color development. The bleaching process may be performed simultaneously with the fixing process. After the fixing process, a washing process is usually performed. Further, a stabilization process may be performed as an alternative to the water washing process. The developing apparatus used for developing the silver halide photographic light-sensitive material of the present invention may be a roller transport type in which the light-sensitive material is conveyed between rollers arranged in a processing tank, and the photosensitive material may be transferred to a belt. It may be an endless belt type that is fixed and transported, but the processing tank is formed in a slit shape,
A method of supplying the processing solution to the processing tank and transporting the photosensitive material, a spray method of spraying the processing solution, a web method by contact with a carrier impregnated with the processing solution, and a method of using a viscous processing solution may be used. Can be.

[0162]

EXAMPLES The present invention will be described below with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1 High-density polyethylene was laminated on both sides of a paper pulp having a basis weight of 180 g / m ² to prepare a paper support. However, on the side to be coated with the emulsion layer, a molten polyethylene containing surface-treated anatase-type titanium oxide dispersed at a content of 10% by weight was laminated to produce a reflective support. Each layer having the following constitution was coated on this reflective support to prepare a silver halide photographic material. The coating solution was prepared as described below.

First layer coating solution 23.4 g of yellow coupler (Y-1), 3.34 g of dye image stabilizer (ST-1), 3.34 g of (ST-2), 3.34 g of dye image stabilizer, stain inhibitor ( 60 cc of ethyl acetate was added to and dissolved in 0.33 g of HQ-1), 5.0 g of compound A and 5.0 g of a high boiling point organic solvent (DBP), and this solution was dissolved in a 20% surfactant (S
U-1) A yellow coupler dispersion was prepared by emulsifying and dispersing in 220 cc of a 10% aqueous gelatin solution containing 7 cc using an ultrasonic homogenizer. This dispersion was mixed with a blue-sensitive silver halide emulsion prepared under the following conditions to prepare a first layer coating solution.

The coating liquids for the second to seventh layers were prepared in the same manner as the coating liquid for the first layer so that the coating amounts were as shown in Tables 1 and 2.

(H-1), (H-2)
Was added. Surfactants (SU-
2) and (SU-3) were added to adjust the surface tension. Further, F-1 was added to each layer so that the total amount became 0.04 g / m ² .

[0167]

[Table 1]

[0168]

[Table 2]

SU-1: sodium tri-i-propylnaphthalene sulfonate SU-2: di (2-ethylhexyl) sodium sulfosuccinate sodium salt SU-3: di (2,2,3,3,4) sulfosuccinate , 4,5,5-octafluoropentyl) · sodium salt DBP: dibutyl phthalate DNP: dinonyl phthalate DOP: dioctyl phthalate DIDP: di-i-decyl phthalate PVP: polyvinylpyrrolidone H-1: tetrakis (vinylsulfonylmethyl) methane H-2: 2,4-dichloro-6-hydroxy-s-triazine.
Sodium Compound A: Pt-octylphenol

[0170]

Embedded image

[0171]

Embedded image

[0172]

Embedded image

[0173]

Embedded image

[0174]

Embedded image

[0175]

Embedded image

(Preparation of Blue-Sensitive Silver Halide Emulsion) The following (A) was placed in 1 liter of a 2% aqueous gelatin solution kept at 40 ° C.
Solution) and (solution B) with pAg = 7.3 and pH = 3.0.
At the same time, and further add the following (Solution C) and (Solution D)
The co-addition was performed over 180 minutes while controlling pAg = 8.0 and pH = 5.5.

At this time, pAg was controlled by the method described in JP-A-59-45437, and pH was controlled using sulfuric acid or an aqueous sodium hydroxide solution.

(Solution A) Sodium chloride 3.42 g Potassium bromide 0.03 g 200 cc with water (Solution B) 10 g of silver nitrate 200 cc with water (Solution C) K ₂ IrCl ₆ 2 × 10 ⁻⁸ mol / mol Ag chloride Sodium 102.7 g K ₄ Fe (CN) ₆ 1 × 10 ^-5 mol / mol Ag Potassium bromide 1.0 g Add water 600 cc (Solution D) Silver nitrate 300 g Add water 600 cc after the addition is complete, and then add Kao Atlas Demol N After desalting using a 5% aqueous solution of magnesium sulfate and a 20% aqueous solution of magnesium sulfate, the mixture was mixed with an aqueous gelatin solution to obtain a single particle having an average particle size of 0.85 μm, a variation coefficient of particle size distribution of 0.07, and a silver chloride content of 99.5 mol%. A dispersed cubic emulsion EMP-1 was obtained. The average particle size here is a particle size when a projected image of silver halide grains is converted into a circular image having the same area.

The emulsion EMP-1 was optimally chemically sensitized at 60 ° C. using the following compounds to obtain a blue-sensitive silver halide emulsion (EmB).

Sodium thiosulfate 0.8 mg / mol AgX chloroauric acid 0.5 mg / mol AgX stabilizer STAB-3 8 × 10 ⁻⁴ mol / mol AgX sensitizing dye BS-14 4 × 10 ⁻⁴ mol / mol AgX sensitization Dye BS-2 1 × 10 ^-4 mol / mol AgX (Preparation of green-sensitive silver halide emulsion) (Solution A) and (Solution B)
The average particle size was 0.43 μm in the same manner as in (EMP-1) except that the addition time of (CMP) and (C solution) and (D solution) were changed.
m, a coefficient of variation of 0.08 and a monodisperse cubic emulsion (EMP-2) having a silver chloride content of 99.5%.

The emulsion (EMP-2) was optimally chemically sensitized at 55 ° C. using the following compounds to obtain a green-sensitive silver halide emulsion (EmG).

Sodium thiosulfate 1.5 mg / mol AgX chloroauric acid 1.0 mg / mol AgX stabilizer STAB-1 6 × 10 ⁻⁴ mol / mol AgX stabilizer STAB-2 3 × 10 ⁻⁴ mol / mol AgX sensitizing dye GS-1 4 × 10 ^-4 mol / mol AgX (Preparation of red-sensitive silver halide emulsion) (solution A) and (solution B)
The average particle size was 0.50 μm in the same manner as in (EMP-1) except that the addition time of (CMP) and (C solution) and (D solution) were changed.
m, a coefficient of variation of 0.08 and a monodispersed cubic emulsion (EMP-3) having a silver chloride content of 99.5%.

The emulsion (EMP-3) was optimally chemically sensitized at 60 ° C. using the following compounds to obtain a red-sensitive silver halide emulsion (EmR).

Sodium thiosulfate 1.8 mg / mol AgX chloroauric acid 2.0 mg / mol AgX stabilizer STAB-1 6 × 10 ^-4 mol / mol AgX stabilizer STAB-2 3 × 10 ^-4 mol / mol AgX sensitizing dye RS-1 1 × 10 ^-4 mol / mol AgX sensitizing dye RS-2 1 × 10- ⁴ mol / mol AgX STAB-1: 1- (3- acetamidophenyl) -5-mercaptotetrazole STAB-2: 1- Phenyl-5-mercaptotetrazole STAB-3: 1- (4-ethoxyphenyl) -5-mercaptotetrazole

[0185]

Embedded image

The sample thus obtained was used as Sample 101.

Next, a sample 102 was prepared in the same manner as the sample 101. However, S having the following structure is provided between the support and the first layer.
-1 layer and S-2 layer were applied.

S-1 layer: White pigment-containing layer Gelatin 2.0 g / rutile type titanium dioxide (manufactured by Ishihara Sangyo) 5.0 g / S-2 layer: Intermediate layer 0.5 g of gelatin / Also as a gelatin hardener (H-2) 20 mg for the S-1 layer
/ M ² , and 5 mg / m ² to S-2.

Further, the coating amount of gelatin was changed in the S-1 layer and the S-2 layer as shown in Table 3 and the hydrophilic polymer according to the present invention was added. Sample 103 was obtained.

Next, the gelatin hardener of Sample 103 was replaced with (H-
2) was changed to (H-1), and the hardener (H-1) was changed to S-
The first layer is the 30mg / m ^{2, S-2} was prepared Samples 104 of the added present invention so as to be 15 mg / m ^2.

Further, as shown in Table 3, the coating amount of gelatin was changed in the S-1 layer and the S-2 layer, and the hydrophilic polymer according to the present invention was added. Samples 105 to 115 were obtained.

The following evaluation was performed using the sample thus manufactured.

<Evaluation of Sharpness> After a resolving power test chart was printed on each sample with red light and the following developing process was performed, the obtained cyan image was converted to a microdensitometer PDM-5D (manufactured by Konica Corporation). ) Was measured, and the value represented by the following equation was defined as sharpness.

Sharpness (%) = (Dmax of dense line print image of (3 lines / mm)
−Dmin) / (Dmax−Dmin in the large area portion) Here, Dmax: maximum density Dmin: minimum density The larger this value is, the better the sharpness is.

<Evaluation of Pressure Resistance> Before exposure, using a Haydon Scratch Strength Tester Model 18 (manufactured by Shinto Kagaku), 5, 10,
Scratching the emulsion surface of each sample with each load of 20, 30 and 50 g,
Thereafter, wedge exposure was performed with white light, and the following development processing steps were performed.

◎: excellent ○: good
Δ: Slightly generated ×: Generated ××: Notably generated <Evaluation of curl> An undeveloped sample of 10 cm × 10 cm was measured at 23 ° C. and 20%
The sample was allowed to stand for 24 hours under the condition of RH, and the curl degree was determined by the reciprocal of the radius of curvature.

Curl = 1 / radius of curvature (m) If the radius of curvature exceeds 20, the handling becomes extremely poor and the level becomes unpractical.

<Evaluation of Folding Resistance>
The evaluation was performed using a T folding tester.

A sample having a width of 15 mm and a length of 100 mm was measured at a measurement load of 1.0 kg, and the number of reciprocating bending was performed 10 times.
The frequency of occurrence of cracks on the silver halide emulsion-coated surface was visually evaluated.

…: Excellent…: Good や: Slightly generated X: Slightly generated The sample prepared in this manner was exposed to light wedge by a conventional method, and then subjected to a developing process in the following developing process.

Processing step Processing temperature Time Replenishment amount Color development 38.0 ± 0.3 ° C 45 seconds 80cc Bleaching and fixing 35.0 ± 0.5 ° C 45 seconds 120cc Stabilization 30-34 ° C 60 seconds 150cc drying 60-80 ° C 30 seconds Development processing The composition of the liquid is shown below.

Color developer tank solution and replenisher tank solution Replenisher Pure water 800 cc 800 cc triethylenediamine 2 g 3 g diethylene glycol 10 g 10 g potassium bromide 0.01 g-potassium chloride 3.5 g-potassium sulfite 0.25 g 0.5 g N-ethyl-N- ( β-methanesulfonamidoethyl) -3-methyl-4-aminoaniline sulfate 6.0 g 10.0 g N, N-diethylhydroxylamine 6.8 g 6.0 g triethanolamine 10.0 g 10.0 g diethylenetriaminepentaacetic acid sodium salt 2.0 g 2.0 g Whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 2.0 g 2.5 g Potassium carbonate 30 g 30 g Water was added to make a total volume of 1 liter.
At 10, the replenisher is adjusted to pH = 1.60.

Bleach-fixer tank solution and replenisher diethylenetriaminepentaacetate ammonium ferric dihydrate 65 g diethylenetriaminepentaacetic acid 3 g ammonium thiosulfate (70% aqueous solution) 100 cc 2-amino-5-mercapto-1,3,4-thiadiazole 2.0 g Ammonium sulfite (40% aqueous solution) 27.5 cc Add water to make the total volume 1 liter, and adjust the pH to 5.0 with potassium carbonate or glacial acetic acid.

Stabilizing solution tank solution and replenisher solution o-phenylphenol 1.0 g 5-chloro-2-methyl-4-isothiazolin-3-one 0.02 g 2-methyl-4-isothiazolin-3-one 0.02 g diethylene glycol 1.0 g Fluorescent brightener (Tinopearl SFP) 2.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 1.8 g Bismuth chloride (45% aqueous solution) 0.65 g Magnesium sulfate heptahydrate 0.2 g PVP 1.0 g Ammonia water (ammonium hydroxide 25 2.5g Nitrilotriacetic acid / trisodium salt 1.5g Water is added to make up to 1 liter, and the pH is adjusted to 7.5 with sulfuric acid or aqueous ammonia.

Table 3 shows the obtained results.

[0206]

[Table 3]

As shown in Table 3, it can be seen that the sample according to the present invention has excellent sharpness and has improved pressure resistance, curl and bending resistance as compared with the comparative sample 102.

Example 2 A sample 201 was prepared in the same manner as in the sample 101 of Example 1.
However, an S-1 layer and an S-2 layer having the following structure were applied between the support and the first layer.

S-1 layer: White pigment-containing layer Gelatin 3.0 g / m ² Anatase type titanium dioxide (manufactured by Ishihara Sangyo) 5.5 g / m ² S-2 layer: Intermediate layer Gelatin 1.0 g / m ² Still gelatin hardener 2,4-dichloro-6-hydroxy-s-
Triazine sodium was added to the S-1 layer in an amount of 25 mg / m ² and S-2.
To 10 mg / m ² .

Next, the polymer hardeners according to the present invention shown in Table 4 except that sodium 2,4-dichloro-6-hydroxy-s-triazine used as a gelatin hardener in the S-1 layer and the S-2 layer were used. Sample 210 was obtained from Sample 202 in the same manner as in Sample 201, except that it was added to Sample 201.

The same evaluation as in Example 1 was performed using the sample thus manufactured.

[0212]

[Table 4]

As shown in Table 4, it can be seen that the sample according to the present invention has excellent sharpness and has improved pressure resistance, curl, and bending resistance as compared with Comparative Sample 201.

Example 3 A sample 301 was prepared in the same manner as in the sample 101 of Example 1.
However, an S-1 layer and an S-2 layer having the following structure were applied between the support and the first layer.

S-1 layer: White pigment-containing layer Gelatin 2.0 g / m ² P-1 0.5 g / m ² Anatase type titanium dioxide (manufactured by Ishihara Sangyo) 5.5 g / m ² Black colloidal silver 1.0 g / m ² S- Two layers: Intermediate layer Gelatin 1.0 g / m ^{2 The} above (H-1) was used as a gelatin hardener in the S-1 layer.
30 mg / m ² and S-2 were added at 15 mg / m ² .

The sample 301 was evaluated in the same manner as in Example 1, and the obtained results are shown below.

Sample No. Sharpness Pressure fog Curl Curl Fold Remarks 301 0.83 ◎ 11.6 ○ The present invention As is clear from the above, the sample 301 according to the present invention has excellent sharpness, pressure resistance, curl and bending. It can be seen that the resistance is greatly improved.

Example 4 A sample 401 was prepared in the same manner as in the sample 101 of Example 1.
However, S-0 having the following structure is provided between the support and the first layer.
Layer, S-1 layer and S-2 layer were provided.

S-0 layer: Colored layer Gelatin 0.8 g / m ² Black colloidal silver 1.2 g / m ² S-1 layer: White pigment-containing layer Gelatin 2.0 g / m ² P-1 0.5 g / m ² Anatase type dioxide Titanium (manufactured by Ishihara Sangyo) 5.5 g / m ² Black colloidal silver 1.0 g / m ² S-2 layer: Intermediate layer Gelatin 1.0 g / m ² Further, the above (H-1) was used as a gelatin hardener in the S-1 layer. Is
It was added to 25 mg / m ² and to 15 mg / m ² for S-2.

The sample 401 was evaluated in the same manner as in Example 1, and the obtained results are shown below.

Sample No. Sharpness Pressure fog Curl Curl Fold Remarks 401 0.88 ◎ 11.0 ○ The present invention As is clear from the above, the sample 401 according to the present invention has excellent sharpness, pressure resistance, curl and bending. It can be seen that the resistance is greatly improved.

Example 5 The support used for the sample of Example 1 was the following support A,
Except for changing to B, C, and D, all operations were performed in the same manner as Sample 104 of Example 1, and Sample 501 to Sample 504 were prepared.

<Adjustment of Reflective Support A> L for photographic printing paper
BKP (sulfate bleached hardwood pulp) 50% by weight and NBSP
(Sulfate bleached softwood pulp) 50% by weight white base paper (basis weight)
(175 g / m ² , thickness 180 μm) is extruded and coated with a polyethylene composition (density 0.95 g / cc, MI 8.0 g / 10 min) to form a 25 g / m ² back laminate layer. Was manufactured.

Next, 87 parts by weight of polyethylene terephthalate were placed on the surface on the side where the back laminate was not applied.
13 parts by weight of a titanium oxide white pigment (anatase type) was added, kneaded, and then melt-extruded to obtain a laminate of 30 g / m ^2.
Was applied to the surface of the sheet-like substrate.

<Adjustment of Reflective Support B> Photographic paper L
BKP (sulfate bleached hardwood pulp) 50% by weight and NBSP
(Sulfate bleached softwood pulp) 50% by weight white base paper (basis weight)
(175 g / m ² , thickness 180 μm) is extruded and coated with a polyethylene composition (density 0.95 g / cc, MI 8.0 g / 10 min) to form a 25 g / m ² back laminate layer. Was manufactured.

Next, 95 parts by weight of polyethylene terephthalate were placed on the surface on the side where the back laminate was not applied.
5 parts by weight of a titanium oxide white pigment (anatase type) was added, kneaded, and then melt-extruded and laminated to obtain 30 g / m ^2.
Was applied to the surface of the sheet-like substrate.

<Adjustment of Reflective Support C> L for photographic printing paper
BKP (sulfate bleached hardwood pulp) 50% by weight and NBSP
(Sulfate bleached softwood pulp) 50% by weight white base paper (basis weight)
(175 g / m ² , thickness 180 μm) is extruded and coated with a polyethylene composition (density 0.95 g / cc, MI 8.0 g / 10 min) to form a 25 g / m ² back laminate layer. Was manufactured.

Next, 98 parts by weight of polyethylene terephthalate were placed on the surface on the side where the back laminate was not applied.
2 parts by weight of a titanium oxide white pigment (anatase type) was added, kneaded, and then melt-extruded to form a laminate of 30 g / m ^2.
Was applied to the surface of the sheet-like substrate.

<Adjustment of Reflective Support D> L for photographic printing paper
BKP (sulfate bleached hardwood pulp) 50% by weight and NBSP
(Sulfate bleached softwood pulp) 50% by weight white base paper (basis weight)
(175 g / m ² , thickness 180 μm) is extruded and coated with a polyethylene composition (density 0.95 g / cc, MI 8.0 g / 10 min) to form a 25 g / m ² back laminate layer. Was manufactured.

Next, 90 parts by weight of polyethylene terephthalate were placed on the surface on the side where the back laminate was not applied.
10 parts by weight of a titanium oxide white pigment (anatase type) was added, kneaded, and then melt-extruded to form a laminate of 30 g / m ^2.
Was applied to the surface of the sheet-like substrate.

The samples 501 to 504 were evaluated in the same manner as in Example 1,
The results obtained are shown below.

Sample No. Support Sharpness Pressure fog curl Bending Remarks 501 A 0.79 ◎ 14.0 ○ Present invention 502 B 0.78 ◎ 12.0 ◎ Present invention 503 C 0.77 ◎ 12.0 ◎ Present invention 504 D 0.79 ◎ 15.0 ○ Present invention From above As is apparent, the samples 501 to 504 according to the present invention have excellent sharpness and greatly improved pressure resistance, curl and bending resistance.

Further, it can be seen that Samples 502 and 503 are particularly excellent in curl resistance and bending resistance.

Example 6 Each layer having the following constitution was coated on a 110 μm thick support obtained by laminating polyethylene on one side of a paper support and polyethylene containing titanium oxide on the other side of the first layer on the other side. And
Multilayer silver halide color photographic light-sensitive material 601 according to the present invention
It was created.

(Preparation of Emulsion EM-1) While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 95: 5 by molar ratio) ) Is added simultaneously with the control double jet method to obtain a particle size of 0.30
A μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by a control double jet method, and the average grain size was adjusted. 0.42μm diameter
The shell was formed until. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-1. The distribution width of this emulsion EM-1 was 8%.

(Preparation of Emulsion EM-2) While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 95: 5 by molar ratio). ) Is added at the same time by the control double jet method to give a particle size of 0.18
A μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by a control double jet method, and the average grain size was adjusted. 0.25μm diameter
The shell was formed until. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-2. The distribution width of this emulsion EM-2 was 8%.

(Preparation of Blue-Sensitive Emulsion EM-B) EM-1
Was added with sensitizing dye D-1 and color sensitized, and then T-1 was added in an amount of 600 mg per mol of silver to prepare a blue-sensitive emulsion EM-B.

(Preparation of Green-sensitive Emulsion EM-G) A green-sensitive emulsion EM-G was prepared in the same manner as the blue-sensitive emulsion except that sensitizing dye D-2 was added to EM-2 for color sensitization.

(Preparation of red-sensitive emulsion EM-R) A red-sensitive emulsion EM-R was prepared in the same manner as the blue-sensitive emulsion except that sensitizing dyes D-3 and D-4 were added to EM-2 and color-sensitized. Produced.

(Preparation of Pan-sensitive Emulsion EM-P) Except that sensitizing dyes D-1, D-2, D-3 and D-4 were added to EM-1 and color-sensitized, the same procedure as in the blue-sensitive emulsion was performed. Pan-sensitive emulsion EM-
P was produced.

T-1: 4-hydroxy-6-methyl-1,3,3a,
7-tetrazaindene

[0244]

Embedded image

EM-B, EM-G, EM-R, EM
Color photographic light-sensitive material 1 having the following composition using -P
-1 was produced. The first to ninth layers were coated on the front surface of the support in the following configuration. The same layer was coated on the back surface side, and the tenth layer was coated on the back surface side. Sample 1 was prepared using SA-1 and SA-2 as coating aids and H-1 and H-2 as hardeners.

SA-1: Sulfosuccinate di (2-ethylhexyl) ester sodium SA-2: Sulfosuccinate di (2,2,3,3,4,4,5,5-octafluoropentyl) ester Sodium H-1: 2,4-dichloro-6-hydroxy-s-triazine / sodium H-2: Tetrakis (vinylsulfonylmethyl) methane Layer Composition Coating weight (g / m ² ) Ninth layer Gelatin 0.78 (UV Absorbing layer) UV absorber (UV-1) 0.065 UV absorber (UV-2) 0.120 UV absorber (UV-3) 0.160 Solvent (SO-2) 0.1 Silica matting agent 0.03 8th layer Gelatin 1.43 (Blue sensitive layer ) Blue-sensitive emulsion EM-B (amount of coated silver) 0.4 Approximately sensitive emulsion EM-P (amount of coated silver) 0.1 Yellow coupler (YC-1) 0.82 Stain inhibitor (AS-2) 0.025 Solvent (SO-1) 0.82 Agent (ST-1, ST-2, T-1) Fine Amount 7th layer Gelatin 0.54 (Intermediate layer) Anti-color mixing agent (AS-1,3,4,5,6 equivalent) 0.055 Solvent (SO-2) 0.072 6th layer Gelatin 0.42 (Yellow yellow colloidal silver 0.1 Colloidal silver layer ) Color mixture inhibitor (AS-1, 3, 4, 5, 6 equivalents) 0.04 Solvent (SO-2) 0.049 Polyvinylpyrrolidone (PVP) 0.047 Anti-irradiation dye (AI-3) 0.03 Fifth layer gelatin 0.54 ( Intermediate layer) Color mixture inhibitor (AS-1, 3, 4, 5, 6 equivalents) 0.055 Solvent (SO-2) 0.072 4th layer Gelatin 0.42 (Green sensitive layer) Green sensitive emulsion EM-G (Amount of silver coated) 0.40 Emulsion EM-P (silver coating amount) 0.10 Magenta coupler (MC-1) 0.25 Yellow coupler (YC-2) 0.06 Stain inhibitor (AS-2) 0.019 Solvent (SO-1) 0.31 Inhibitor (ST- 1, ST-2, T-1) Trace 3rd layer Latin 0.75 (intermediate layer) Anti-color mixing agent (AS-1, 3, 4, 5, 6 equivalents) 0.055 Solvent (SO-2) 0.072 Anti-irradiation dye (AI-1) 0.01 Anti-irradiation dye (AI-2) ) 0.01 Second layer Gelatin 1.38 (Red-sensitive layer) Red-sensitive emulsion EM-R (Average silver coating) 0.30 Approximately sensitive emulsion EM-P (Average silver coating) 0.06 Cyan coupler (CC-2) 0.44 Solvent (SO-1) 0.31 Stain inhibitor (AS-2) 0.015 Inhibitor (ST-1, ST-2, T-1) Trace amount First layer Gelatin 1.0 (White pigment layer) Anatase type titanium dioxide 3.0 Hydrophilic polymer (P-7) 0.2 10th layer Gelatin 6.00 (back layer) Silica matting agent 0.65 Silver coating amount is based on silver.

SO-1: trioctyl phosphate SO-2: dioctyl phthalate AS-1: 2,4-di-t-octylhydroquinone

[0248]

Embedded image

[0249]

Embedded image

[0250]

Embedded image

[0251]

Embedded image

[0252]

Embedded image

The sample 601 obtained as described above was exposed under the following exposure condition-1 by bringing the black plate and cyan plate of the halftone original document into close contact. Subsequently, the black plate and the magenta plate were brought into close contact with each other and exposed under the following exposure condition-2. Further, a black plate and a yellow plate were brought into close contact with the sample, and exposed by exposure-3 shown below.

(Exposure condition-1) When each photosensitive material is exposed to white light through a red filter (Ratten No. 26) and an ND filter, the density of the ND filter is adjusted so that the red light density after development processing is minimized. Exposure for 0.5 seconds with the minimum exposure amount.

(Exposure condition-2) The ND filter density was adjusted when each photosensitive material was exposed to white light through a green filter (Ratten No. 58) and an ND filter so that the green light density after development processing was minimized. Exposure for 0.5 seconds with the minimum exposure amount.

(Exposure condition-3) When exposing each photosensitive material to white light through a blue filter (Ratten No. 47B) and an ND filter, the density of the ND filter was adjusted so that the density of blue light after the development processing was minimized. Exposure for 0.5 seconds with the minimum exposure amount.

Note that a fluorescent lamp was used as the light source under the exposure conditions -1 to -3. The exposed sample was processed according to the following processing conditions-1 to obtain an image.

The conditions of the development processing and the formulation of the processing solution are as follows.

Processing Step-1 Temperature Time Immersion (developer) 37 ° C. 12 seconds Fog exposure −12 seconds (1 lux) Development 37 ° C. 95 seconds Bleach-fix 35 ° C. 45 seconds Stabilization 25-30 ° C. 90 seconds Drying 60-degree 85 ° C 40 seconds Processing solution composition (color developing solution) Benzyl alcohol 15.0ml Cerium sulphate 0.015g Ethylene glycol 8.0ml Potassium sulfite 2.5g Potassium bromide 0.6g Sodium chloride 0.2g Potassium carbonate 25.0g T-1 0.1g Hydroxylamine Sulfate 5.0 g Sodium diethylenetriaminepentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 4.5 g Optical brightener (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Water Potassium oxide 2.0 g Diethylene glycol 15.0 ml Water is added to make the total volume 1 liter, and the pH is adjusted to 10.15.

(Bleaching-fixing solution) Ferric ammonium diethylenetriaminepentaacetate 90.0 g Diethylenetriaminepentaacetic acid 3.0 g Ammonium thiosulfate (70% aqueous solution) 180 ml Ammonium sulfite (40% aqueous solution) 27.5 ml 3-mercapto-1,2,4-triazole 0.15 g Adjust the pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to make the total volume 1 liter.

(Stabilizing solution) o-phenylphenol 0.3 g potassium sulfite (50% aqueous solution) 12 ml ethylene glycol 10 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.5 g bismuth chloride 0.2 g zinc sulfate heptahydrate 0.7 g water Ammonium oxide (28% aqueous solution) 2.0 g Polyvinylpyrrolidone (K-17) 0.2 g Fluorescent whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 2.0 g Water was added to make a total volume of 1 liter. Adjust the pH to 7.5 with sulfuric acid. The stabilization process is 2
A countercurrent system with a tank configuration was used.

The formula of the replenisher for running is shown below.

(Color developing replenisher) Benzyl alcohol 18.5 ml Ceric sulfate 0.015 g Ethylene glycol 10.0 ml Potassium sulfite 2.5 g Potassium bromide 0.3 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g Hydroxylamine sulfate 5.0 g Sodium diethylenetriaminepentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 5.4 g Fluorescent whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g 18.0 ml of diethylene glycol Add water to make the total volume 1 liter, and adjust the pH to 10.35.

(Bleach-fixing solution replenisher) Same as the bleach-fixing solution.

(Stabilizing solution replenisher) The same as the above-mentioned stabilizing solution.

The replenishment rate of the developer replenisher, the bleach-fixer and the stabilizer was 320 ml per square meter of the light-sensitive material.

Another part of the sample was exposed under exactly the same conditions as in the case of the processing with the new solution, and processed in the same manner as in the processing step-1, except that the developing solution was replenished in the processing step-1. The processing was carried out using a developing solution, a bleach-fixing solution and a stabilizing solution obtained by performing a running process on Sample 1 until the total amount became three times the capacity of the developing tank. (Running liquid treatment) The sharpness, curl resistance, pressure fog, and bending resistance of the sample 601 according to the present invention were evaluated. Was observed.

[0268]

According to the present invention, excellent sharpness is obtained,
Thus, a silver halide color photographic light-sensitive material having reduced pressure fog and improved curl and bending resistance was provided.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G03C 1/91 G03C 1/04 G03C 1/30 G03C 1/79

Claims (2)

(57) [Claims] 1. A silver halide having at least one hydrophilic colloid layer containing at least one white pigment and at least one silver halide emulsion layer on one side of a reflective support having resin coating layers provided on both sides of a base paper. A silver halide color photographic light-sensitive material comprising a hydrophilic colloid layer containing the white pigment and at least one layer adjacent to the hydrophilic colloid layer containing a hydrophilic polymer. 2. A silver halide having at least one hydrophilic colloid layer containing a white pigment and at least one silver halide emulsion layer on one side of a reflective support having a resin coating layer on both sides of a base paper. A color photographic light-sensitive material, wherein at least one of a hydrophilic colloid layer containing the white pigment and an adjacent layer of the hydrophilic colloid layer is hardened with a polymer hardener. material.