JPS63239448A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To enable the low replenishing of a processing solution and the rapid processing of the titled material, and to prevent the deterioration of whiteness of an image by incorporating a prescribed silver halide particle in a nonphotosensitive layer mounted on the rear surface of a supporting body. CONSTITUTION:The red, green and blue photosensitive silver halide emulsion layers are formed on the surface of the supporting body (such as the supporting body formed the waterproof surface on a paper base body) respectively, and the nonphotosensitive layer incorporated the silver halide particle contg. >=60mol.% silver chloride is formed on the another surface of the supporting body. Thus, as the silver halide particle absorbs a coloring substance such as a filter dye which dissolves in a processing tank, etc., and then, the coloring substance is discharged out of a system, without accumulating the coloring substance in the system, even in the case of the low replenishing of the processing solution and the rapid processing of the titled material, the decoloring of said dye is improved, thereby preventing the deterioration of the whiteness of the image.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a silver halide color photographic light-sensitive material, and particularly to a silver halide color photographic light-sensitive material having photographic performance with little deterioration of white background.

[Conventional technology]

In the recent processing of color photographic materials, there is a strong demand for reducing running costs and preventing environmental pollution, and in order to meet these demands, measures have been adopted to minimize the replenishment of each processing solution in a series of processing steps. There is. That is, by suppressing the amount of replenisher and reducing the amount used, running costs are lowered, and the amount of waste liquid is further reduced to prevent environmental pollution.

On the other hand, there is a strong desire for faster processing due to the desire to obtain photographic prints as quickly as possible.

If we try to simultaneously achieve the above requirements of low replenishment of processing solutions and speeding up processing, coloring substances such as sensitizing dyes and filter dyes contained in photographic light-sensitive materials will flow out into each processing solution, causing problems with the processing solution. The substance will accumulate inside. This results in defective decolorization of filter dyes and the like contained in photographic light-sensitive materials, resulting in a phenomenon in which the white background of the resulting images deteriorates. Therefore, at present, it is necessary to sacrifice some of the above requirements to ensure whiteness.

[Purpose of the invention]

The present invention has been made to solve the above problems,
The object of the present invention is to obtain a silver halide color photographic light-sensitive material that can ensure low replenishment of a processing solution and speed up processing, as well as prevent deterioration of photographic performance such as deterioration of white background.

[Structure and operation of the invention]

The present invention provides a support having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on one side of the support, and A silver halide color photographic light-sensitive material having a non-photosensitive layer on the other side of the halogenated material, characterized in that the non-photosensitive layer contains silver halide grains containing at least 60 mol% or more of silver chloride. With silver color photographic material,
This achieved the second objective.

The non-photosensitive layer provided on the other side (hereinafter referred to as the "back side") of the support of the silver halide color photographic light-sensitive material according to the present invention comprises silver halide grains containing at least 60 mol% of silver chloride. have.

In the present invention, the silver halide grains containing at least 60 mol % or more of silver chloride included in the non-photosensitive layer are silver halide grains that are not exposed to light during image exposure and are not substantially developed during development.

As mentioned above, the halogen particles are present in a small amount (both 60 mol%
As long as the silver halide contains the above silver chloride in such a ratio, any grain shape and crystal structure can be selected and used. In practicing the invention, silver chloride,
or silver chlorobromide or silver chloroiodobromide in which at least 60 mol% is silver chloride, preferably at least 60 mol%
A more preferable effect can be achieved when 0 mol % is silver chloride (silver chlorobromide). Furthermore, when carrying out the present invention, it is more preferable that the silver chloride ratio is 70 mol % or more, and in particular, silver chloride alone is most preferable. On the other hand, such silver halide grains have an average grain size of 0.
．． 05-3 μm, more preferably 0.09-0.7 μm
It is preferable that The average grain size of the silver halide grains means the average diameter of a circle corresponding to the projected area of each individual silver halide grain, and this measurement is carried out, for example, in ``Fundamentals of Photographic Optics - Silver Salt Photography Pigeon''. ” (Japan Photographic Society results 1972)
It can be determined by the method described in pages 227 to 228 (Published January 30, 2013).

The above-mentioned silver halide grains can be obtained in the same manner as in the preparation of ordinary non-light-sensitive silver halide emulsions, or in accordance with the preparation of ordinary light-sensitive silver halide emulsions. In this case, there is no need to chemically sensitize the silver halide grain surface (and spectral sensitization is also not necessary. Rhodium salts, etc. are added during the preparation of the silver halide emulsion to further reduce the sensitivity. , can also be substantially non-photosensitive.

However, before adding the silver halide grains to the coating solution, known stabilizers such as triazole compounds, azaindene compounds, benzthiazolium compounds, mercapto compounds, and zinc compounds are added in advance. What to keep
is preferred.

In the light-sensitive material of the present invention, the silver halide grains containing at least 60 mol% of silver chloride contained in the non-photosensitive layer of the present invention may range from 0.02 g/mr to 1 g/rrr in terms of silver. It is preferable to use a coating amount of . More preferably from 0.05 g/at to 0.5
It is preferred to use a coating weight in the range up to g/rd.

Since the above-mentioned silver halide particles are contained in the non-photosensitive layer, the silver halide particles adsorb coloring substances such as filter dyes dissolved in a color development processing tank, etc., and carry them out of the system. Therefore, even under conditions of low replenishment and rapid processing, colored substances do not accumulate in the system, and as a result, the decolorization of filter dyes, etc. in the photographic constituent layers of the photographic light-sensitive material is improved. Deterioration of the white background of an image can be prevented.

Next, the support in the present invention will be explained.

The support may be any support as long as it supports the emulsion layer, and its material can be selected arbitrarily.

Further, it is preferable that the support has a surface with excellent water resistance, and a support with excellent water resistance can be obtained, for example, by forming a water-resistant surface on a substrate.

The water-resistant surface in this case can be formed by coating a substrate, for example a paper substrate, with a hydrophobic resin.

In an embodiment in which such a water-resistant surface is formed, even when the silver halide photographic light-sensitive material is immersed in a bath used for development processing, it is possible to prevent water from forming on the substrate.

Examples of resins used in the hydrophobic resin coating layer coated on the surface include polyolefins such as polyethylene, polypropylene, and polybutene; olefins such as ethylene, propylene, and butene, and vinyl acetate, vinylidene chloride, and maleic anhydride. Copolymer with Nanatsumer (
(e.g., ethylene-vinyl acetate copolymer, propylene-vinylidene chloride copolymer, propylene-maleic anhydride copolymer, etc.), or homopolymers or copolymers of polystyrene, polyvinyl chloride, polyacrylate, saturated polyester, polycarbonate, etc. , or a blend thereof. The thickness of this hydrophobic resin coating layer is not particularly limited, but is generally 15 to
The thickness is preferably about 50 μm.

When using polyethylene resin, there is no particular restriction on its molecular weight as long as extrusion coating is possible, but polyethylene having a molecular weight in the range of 20.000 to 200.000 is usually used. Further, the polyethylene resin used for the hydrophobic resin coating layer in this case may be any of low density, medium density, and high density polyethylene resins, and these may be used alone or in combination of two or more types.

In addition, a fine particle powder with higher heat resistance than the above resin, for example, a white pigment such as Ba5Oa, Zr+0+Ti1t, etc., may be mixed with the resin (this can form an opaque support. In this case, the mixture is mixed and then extruded. Alternatively, an opaque white support with high transmission density can be obtained by forming voids and whitening by stretching, or by bonding these together.

Next, the emulsion used to form the silver halide emulsion layer in the present invention will be explained.

The composition of the silver halide in the emulsion is arbitrary, and various silver halides can be used, but silver chlorobromide, silver bromoiodide, silver chloroiodide, or a mixture thereof is preferred.

The grain size of silver halide grains in the emulsion is 0.3 to 1.5 μm.
There are no particular limitations on the crystal form or crystal habit of the silver halide grains used. The crystal habit is preferably cubic, octahedral, dodecahedral, twinned or tabular. can.

The emulsion may be prepared by any of the acidic method, neutral method, alkaline method, ammonia method, etc. Further, any of the forward mixing method, back mixing method, and simultaneous mixing method may be used, and the pAg control double jet method or a layered emulsion based on the converge run method may be used.

When implementing the photographic material of the present invention, in order to control the gradation, a high-speed emulsion and a low-sensitivity emulsion can be provided separately in an upper layer and a lower layer, or they can be mixed and coated.

The photographic light-sensitive material of the present invention has a red-sensitive silver halide emulsion layer containing a cyan coupler, a green-sensitive silver halide emulsion layer containing a magenta coupler, a yellow filter layer if necessary, and a yellow filter layer on a support. It is composed of a blue-sensitive silver halide emulsion layer containing a coupler.

Although the order of these layers is arbitrary, it is desirable to coat them in the above-mentioned order starting from the support side.

As the couplers contained in each of the above photosensitive layers, yellow couplers include benzoylacetanilide type,
Useful are pivaloylacetanilide type or 2-equivalent type yellow couplers in which the carbon atom at the camping position is substituted with a so-called split-off group that can be separated during camping.

As magenta couplers, 5-pyrazolones, pyrazoloazoles such as pyrazolotriazole, pyrazolinobenzimidazoles, indashilons, or 2-equivalent cyan couplers having a split-off group are useful.

As the cyan coupler, phenol-based, naphthol-based, vilazoquinazolone-based, or 2-equivalent type cyan couplers having a split-off group are useful.

These dye-forming couplers can be selected arbitrarily, and there are no particular limitations on how they are used, how much they are used, etc.

In addition, in order to prevent fading of the dye image due to short wavelength actinic rays, ultraviolet absorbers can be used, such as thiazolidone, benzotriazole, acrylonitrile, benzophenone compounds, etc., and in particular Tinuvin PS,
120, 320, 326, 327, 328 (
Both products (manufactured by Ciba Geigy) are advantageous to use alone or in combination.

When carrying out the present invention, in addition to the four layers of red, green, and blue photosensitive layers and one yellow filter layer, a protective layer, an intermediate gelatin layer, or an antihalation silane layer as a lower layer may be formed as necessary. It's okay.

The silver halide emulsion used in the light-sensitive material of the present invention includes:
For example, an internal latent image type silver halide emulsion can be used. Internal latent image type silver halide emulsions include, for example, so-called conversion type silver halide emulsions produced by the conversion method described in US Pat. No. 2+592+250, or US Pat. 317
, 322 and 3.367.778, or U.S. Pat. Nos. 3,271°157 and 3.447; , No. 927 and No. 3.531.29.
Silver halide emulsions having silver halide grains incorporating polyvalent metal ions as described in US Pat. No. 1, or silver halide containing dopants as described in US Pat. No. 3,761,276 Silver halide emulsions whose grain surfaces are weakly chemically sensitized, or so-called core-shell type halogenation using the lamination method described in JP-A-50-8524, JP-A-50-38525, and JP-A-53-2408. Silver emulsion, etc. JP-A-52-156614, JP-A-52-156614
Silver halide emulsions described in No. 127549 and No. 57-79940 can be used.

In this case, it is particularly preferable that the internal latent image type silver halide be made of layered grains.

Such silver halide can be produced in the same manner as ordinary laminated silver halide. For example, Japanese Patent Application Publication No. 1973-
No. 8524, No. 50-38525, No. 53-6022
No. 2, No. 55-1524 and U.S. Patent No. 3, 206
．． As described in No. 313, silver chloride grains are formed, then bromide is added to convert them into silver bromide grains, and then silver nitrate is further added to laminate a halide, or silver iodobromide is formed in a state with little excess halogen. Examples include a method of making particles and then sequentially stacking silver chloride and silver bromide.

The composition of the silver halide grains inside the laminated type and core-shell type has a high silver bromide content (60 to 100 mol%).
Silver iodobromide grains are suitable. The composition of the silver halide layered on the outside is preferably silver chlorobromide, and from the viewpoint of developability, it is desirable to have a high silver chloride ratio (70 mol % or more).

The grain size of silver halide is 0.2 to 1.7
Particles of .mu.m can be used, and if high contrast is required, those with a narrow particle size distribution are preferred, and if low contrast is required, those with a wide particle size distribution are preferred.

Various photographic additives can be added to the internal latent image type silver halide emulsion. For example, various optical sensitizers can be added. It can also be supersensitized.

When using internal latent image type silver halide emulsions, the emulsions contain stabilizers that are commonly used, such as compounds with azaindene rings, in order to keep the surface sensitivity as low as possible and to impart lower minimum density and more stable properties. and a heterocyclic compound having a mercapto group.

In addition, wetting agents can be used depending on the purpose. Other photographic additives include gelatin plasticizers, surfactants, ultraviolet absorbers, pH adjusters, antioxidants, antistatic agents, thickeners, graininess improvers, dyes, mordants, brighteners, and developers. It is optional to use speed modifiers, matting agents, etc.

The silver halide color photographic light-sensitive material of the present invention may contain appropriate gelatin (including oxidized gelatin) and its derivatives depending on the purpose.

Preferred gelatin derivatives include, for example, sialylated gelatin, guanidylated gelatin, carbanylated gelatin, cyanoethanolated gelatin, and esterified gelatin.

Further, in the silver halide color photographic light-sensitive material of the present invention, the hydrophilic colloid layer may contain other hydrophilic binders in addition to gelatin.

This hydrophilic binder can be added to photographic constituent layers such as an emulsion layer, an intermediate layer, a protective layer, a filter layer, a backing layer, etc., depending on the purpose. It is possible to contain agents, lubricants, etc.

Further, the photographic constituent layers of the light-sensitive material of the present invention can be hardened with any suitable hardening agent.

Further, in carrying out the present invention, dip coating, air doctor coating, extrusion coating, slide hopper coating, curtain flow coating, etc. can be used as a coating method for the photographic constituent layer.

All of the light-sensitive emulsion layers in the present invention can directly form a positive image by applying optical power. In this case, the main process is generally to perform surface development on the internal latent image type silver halide photographic light-sensitive material, which has not been coupled in advance, after image exposure, after subjecting it to fogging treatment, or while subjecting it to fogging treatment. be. Here, the fogging process can be performed by applying uniform exposure to the entire surface. In this case, the entire surface uniform exposure is performed by immersing or moistening the image-exposed internal latent image type silver halide color photographic light-sensitive material in a developer or other aqueous solution, and then uniformly exposing the entire surface. The light source used here may be any light within the wavelength range to which the internal latent image type silver halide color photographic light-sensitive material is sensitive, and short-term irradiation with high-intensity light such as flash light may also be used. The final uniform exposure time for the entire surface will depend on the internal latent image type silver halide color photographic light-sensitive material, development processing conditions, type of light source used, etc. It can be varied over a wide range to obtain a positive image.

When the light-sensitive material of the present invention is applied as an internal latent image type silver halide color photographic light-sensitive material, a positive image can be directly formed by exposing the entire surface and developing it after image exposure as described above. However, any developing method may be employed as the developing method for the photosensitive material, preferably a surface developing method. This surface development processing method means processing with a developer that does not substantially contain a silver halide solvent.

In carrying out the present invention, a positive image (visible image) corresponding to the original image can be formed by subjecting the exposed silver halide photographic material to processing using a processing solution having development and fixing ability.

The primary aromatic amino color development agents used in the color development treatment of the light-sensitive material of the present invention include various types that are widely used in various color photographic processes.

These developers are conventionally known aminophenol-based and p-based developers.
-Includes phenylenediamine derivatives. Since these compounds are more stable in the free state, they are generally used in the form of salts, such as hydrochlorides or sulfates. In addition, these compounds are generally used in amounts of about 0.1 g to 1β for color developer 1β.
Concentration of about 30g, more preferably color developer 1! A concentration of about 1 g to about 15 g per liter is used.

As aminophenol-based developers, primary aromatic amino-based color developers are particularly useful; May be substituted or not substituted. Among them, an example of a particularly useful compound is N9N-diethyl-p-phenylenediamine hydrochloride.

In addition to the above-mentioned primary aromatic amino color developer, the alkaline color developer that can be used in the photographic material of the present invention contains various components normally added to color developers, such as sodium hydroxide and carbonate. It may optionally contain alkaline agents such as sodium and potassium carbonate, alkali metal bisulfites, alkali metal thiocyanates, alkali metal halides, pendyl alcohol, water softeners and thickeners. The OpH value of the color developer is preferably usually 7 or higher, most commonly about 10 to about 13, preferably about 10.

The fixing processing liquid for the photosensitive material of the present invention is a processing liquid containing a soluble complexing agent that is solubilized as a silver halide complex salt,
It includes not only a general fixing solution but also a bleach-fixing solution and a developing bleach-fixing solution, but preferably a bleach-fixing solution. Typical soluble complexing agents include thiosulfates such as potassium thiosulfate, thiocyanates such as potassium thiocyanate, thioureas, thioethers, and high concentrations of bromides and iodides. In particular, it is desirable to contain thiosulfate from the viewpoint of stabilization of the dye image over time, chemical stability, and ability to form a soluble complex with silver halide.

After color development processing, processing is performed with a processing solution having fixing ability. In color processing, when the processing solution having fixing ability is a fixing solution, bleaching processing is usually performed before that. A metal complex salt of an organic acid is used as a bleaching agent in the bleach solution or bleach-fix solution used in the bleaching process, and the metal complex salt oxidizes metallic silver produced by development and converts it into silver halide. It has the effect of coloring the uncolored part of the coloring agent, and its structure is that metal ions such as iron, cobalt, copper, etc. are coordinated with aminopolycarboxylic acid or organic acids such as oxalic acid and citric acid. The most preferred organic acids used to form such metal complexes of organic acids include polycarboxylic acids and aminopolycarboxylic acids. These polycarboxylic acids or aminopolycarboxylic acids may be alkali metal salts, ammonium salts or water-soluble amine salts.

The bleaching solution used contains a metal complex salt of an organic acid as described above as a bleaching agent, and may also contain various additives. As additives, it is particularly desirable to contain alkali halides or ammonium halides, such as rehalogenating agents such as potassium bromide, sodium bromide, sodium chloride, ammonium bromide, metal salts, chelating agents, etc. pH buffering agents such as salts, oxalates, acetates, carbonates, and phosphates, alkylamines, polyethylene oxides, and the like which are known to be commonly added to bleaching solutions can be appropriately added.

Further, the fixing solution and the bleach-fixing solution can contain one or more of various pH buffering agents conventionally used such as sulfite, boric acid, borax, alkali agents, and acetic acid.

When processing is carried out while replenishing the bleach-fixing solution (bath) with a bleach-fixing replenisher, the bleach-fixing solution (bath) may contain thiosulfate, thiocyanate, sulfite, etc. The processing solution (
(bath) may be refilled.

In addition, in order to increase the activity of the bleach-fix solution, air or oxygen may be blown into the bleach-fix bath and the bleach-fix replenisher storage tank, if desired.
A suitable oxidizing agent such as hydrogen peroxide, bromate, persulfate, etc. may be added as appropriate.

After treatment with a treatment liquid having fixing ability, a normal water washing treatment may be performed, but it is preferable to perform a stabilization treatment that does not substantially include a post-washing process.

Stabilization treatment that does not substantially include a water rinsing process refers to stabilization treatment using a single-tank or multiple-tank countercurrent method immediately after treatment with a treatment liquid that has fixing ability, but does not include rinsing treatment or supplementary treatment. Processing steps other than general water washing, such as water washing and a known water washing accelerator bath, may be included.

Furthermore, water washing treatment may not be necessary before and after stabilization treatment, but
It is optional to provide a treatment tank for rinsing with a small amount of water within a short time, surface cleaning with a sponge, stabilizing the image, and adjusting the surface properties of the silver halide photographic light-sensitive material. Examples of the agent for stabilizing the image and adjusting the surface properties of the silver halide photographic light-sensitive material include activators such as formalin and its derivatives, siloxane derivatives, polyethylene oxide compounds, and quaternary salts.

In carrying out the present invention, it is optional to provide additional processing steps in addition to the processing steps described above. Further, silver may be recovered by a known method not only from the above-mentioned stabilizing solution but also from a processing solution containing a soluble complex salt such as a fixing solution or a bleach-fixing solution.

Moreover, if the above-mentioned stabilization treatment is performed, the water washing step is substantially unnecessary.

The silver halide color photographic light-sensitive material of the present invention can be widely applied to direct positive type, reversal type light-sensitive materials, and other color papers.

〔Example〕

The present invention will be explained below based on the following examples.

However, the present invention is not limited to the following examples.

Example 1 First, the procedure for producing a silver halide photographic material will be explained.

A gelatin solution with the following composition was applied to the back side (transparent polyethylene FJ) of a paper support whose surface was coated with polyethylene containing titanium oxide, so that the amount of halogenation attached was as shown in Table 1 below. The amount is 1.8g/
Samples Nos. 1 to 10 were prepared by applying nf.

(S-1) CHCOOC? H□ 0Ja (H-13 Table-1 F: "On the other hand, the surface of the paper support (white polyethylene layer containing titanium oxide) was pretreated by undercoating with gelatin, and then the following layers were sequentially laminated to create a photographic composition. formed a layer.

First layer: Blue-sensitive silver chlorobromide emulsion layer A silver chlorobromide emulsion containing 5 mol% of silver chloride was
The following yellow couplers (Y-1) and 2,5
An emulsified dispersion prepared by dissolving -di-tert-octylhydroquinone in dioctyl phthalate was used for coating.

Second layer: First intermediate layer was coated using an emulsified dispersion prepared by dissolving 2.5-di-tert-octylhydroquinone in dioctyl phthalate.

Third layer: Green-sensitive silver chlorobromide emulsion layer Anhydro-9-ethyl-5,5'-diphenyl-3°3'-di(
Optically sensitized with 3-sulfopropyl) oxacarbocyanine hydroxide, and the following magenta coupler (M-
1) and an emulsified dispersion prepared by dissolving 2,5-di-terL-octylhydroquinone in dioctyl phthalate, and the following anti-irradiation dye (A-1) were coated.

4th layer; 2nd intermediate layer: ultraviolet absorber (UV-1) and 2,5-diter
An emulsified dispersion prepared by dissolving t-octylhydroquinone in dioctyl phthalate was used for coating.

5th layer; red-sensitive silver chlorobromide emulsion layer Anhydro-2-[3-ethyl-5-(1-ethyl=4(IH)-)
Quinolilidene] ethylidene-4-oxo-thiazolidine-2-ylidenecomethyl-3-[3-sulfopropyl]
Optically sensitized using benzoxacillium hydroxide, the following cyan coupler (C-1) and 2,5-di-t
An emulsified dispersion prepared by dissolving ert-octylhydroquinone in dioctyl phthalate was coated using an anti-irradiation dye (A-2) described below.

6th layer; protective layer The following hardener (H-2) was added to gelatin and coated.

The compounds used in the above emulsion are as follows.

(Y71) q l◆) (M-1) f (C-1) (H-2) (UV-1) C511th (t) (A-1) (A-2) In addition, the components of each layer of the sample above it (per 100 ed) is as shown in Table 2 below.

Table 2 The samples obtained as described above were subjected to wedge exposure using a conventional method, and then subjected to a series of running treatments using the following processing solution.

Standard processing steps (processing temperature and processing time) [1] Color development 38 °C 3 minutes 30 seconds [2] Bleach-fixing 38 °C 1 minute 30 seconds [, 3] Stabilization treatment 25
~30℃ 3 minutes [4] Drying 75-80℃ approx. 2
Separation solution composition (color developer tank solution) (color developer replenisher) (bleach-fix tank solution) (bleach-fix replenisher) Fill an automatic processor with the above color developer tank solution, bleach-fix tank solution, and the following stabilizing solution and sample. A running test was conducted while replenishing the color developing replenisher, bleach-fixing replenisher, and stable replenisher in fixed amounts during processing.

Furthermore, the following stabilizers and replenishers were used.

After performing the above treatment, the minimum density of each photosensitive emulsion layer of the image obtained for each sample was measured, and Table 3 B: Blue-sensitive silver chlorobromide emulsion layer G: Green-sensitive chlorobromide emulsion layer Silver emulsion layer R: red-sensitive silver chlorobromide emulsion layer As is clear from the results in Table 3 above, sample No. 1, which does not have a silver halide emulsion layer on the back side of the support, and a silver halide emulsion layer The minimum density at the start of running is almost the same as that of samples Nα2 to Nα10 having layers, but the minimum density after a certain period of time is particularly high for sample sludge 1, indicating that the white background has deteriorated. This is particularly noticeable in the blue-sensitive layer and the green-sensitive layer.

Further, in the case of the sample Na9.10 in which the ratio of silver chloride was less than 60%, the minimum density at the end of the running was high (it is understood that the white background was deteriorated).

Therefore, if a silver halide emulsion containing 60% or more of silver chloride is applied to the back side of the support, deterioration of the white background can be prevented.

Example-2 In this example, thin polyethylene laminated paper (100
A gelatin solution having the following composition was coated on the back side (transparent polyethylene layer) of μ) so that the amount of gelatin applied was 4.5 g 10f and the silver halide was 0.3 g/rrf, and then dried.

Table 4 On the other hand, the following layers were sequentially laminated on the surface (white polyethylene layer) side of the paper support to form a photographic constituent layer of a direct positive color photographic light-sensitive material.

(Emulsion Layer, etc.) Preparation of Emulsion S 750 d of 2.0% inert gelatin solution was kept at 50°C, and the following solutions A1 and B were simultaneously added while stirring, and poured over a period of 3 minutes. After aging for 25 minutes, excess salt was removed by precipitation and washing with water, and the mixture was redispersed, and liquid C1 and liquid D1 were added. 10
Excess water-soluble salt was removed by fractionation, and a small amount of gelatin was added to disperse silver halide grains.

Preparation of emulsion 1.5% inert gelatin solution 750I11 was kept at 60°C, and while stirring, solutions A2 and B were added simultaneously and injected over 15 minutes. After aging for 40 minutes, excess salt was removed by precipitation and washing with water, the mixture was redispersed, 10 ml of hypo was added, and then liquid C2 and liquid D2 were added. After 10 minutes, excess water-soluble salt was removed again, and a small amount of gelatin was added to disperse the silver halide grains.

Preparation of Emulsion M 750 mL of a 2.0% inert gelatin solution was kept at 50°C, and the following solutions A3 and B were added simultaneously while stirring, and injected over 5 minutes. After aging for 25 minutes, excess salt was removed by precipitation and washing, followed by redispersion, and liquid C1 and liquid D2 were added. 1
After 0 minutes, excess water-soluble salt was removed, and a small amount of gelatin was added to disperse the silver halide particles.

LKBr 12 g Sensitizing dyes, couplers, etc. were added to these three emulsions as shown below to prepare a multilayer color light-sensitive material.

Sensitizing dyes [D-33,
CD-4), stabilizer (T-1), (T-2], surfactant (S-3), dibutyl phthalate, ethyl acetate,
Surfactant (S-3), 2゜5-dioctylhydroquinone and cyan coupler (CC-1), (CC-2)
Protect dispersed coupler solution containing

Gelatin is added and mixed at a ratio of 5:5 (emulsion S:emulsion M) (weight ratio), and coated so that the amount of silver coated is 0.4 g/ITf and the amount of gelatin coated is 1.8 g/ITf.

Second layer: First intermediate layer A gelatin solution containing a protect-dispersed solution containing dioctyl phthalate, 2,5-dioctylhydroquinone, an ultraviolet absorber Tinuvin 328 (manufactured by Ciba Geigy), and a surfactant (S-23) was prepared. Tinuvin application amount 0.15g
/rrf, gelatin coating amount is 1.08 g/rl'f.

3rd layer: Green-sensitive emulsion layer Emulsion S and Emulsion M include a sensitizing dye (D-2) and a stabilizer (T
-1), (T-2), surfactant (S-3), dibutyl phthalate, ethyl acetate, 2.5-dioctylhydroquinone, surfactant (S-2), magenta coupler (MC-1) ) was added to the protect-dispersed coupler solution.

Add gelatin, further add hardening agent (H-3), and mix emulsion S: emulsion M so that the ratio is 5:5 (weight ratio), and the silver coating amount is 0.43 g/n? , gelatin coating amount 1.5g/n
Apply so that it becomes f.

4th layer: 2nd intermediate layer Same formulation as the 1st intermediate layer, coating amount of Tinuvin 328 0.2
Coat so that the gelatin coating amount is 087 g/n (g/n).

5th layer: Yellow filter oxidized under an alkaline weak reducing agent (weak reducing agent removed by noodle water washing method after neutralization) Yellow colloidal silver, dioctyl phthalate, ethyl acetate, surfactant (S- 2) Add the protect dispersion containing 2.5-dioctylhydroquinone, surfactant (S-3) and hardener (H-3) to obtain a coating amount of colloidal silver of 0.15 g/
Coat so that r+f and gelatin coating amount is 1.0 g/rrf.

6th layer; 3rd middle layer Same as the first middle layer.

7th layer: blue-sensitive emulsion layer Sensitizing dye [D-1] for emulsion A and emulsion M, respectively;
Stabilizer (T-1), (T-3), surfactant (S・-3
), and a protected dispersed coupler solution containing dibutyl phthalate, ethyl acetate, 2.5-dioctylhydroquinone, a surfactant (S-23, and yellow coupler (YC-1)) was added.

Add gelatin, then add hardener (H-3) and mix so that emulsion L=emulsion M is 5:5 (weight ratio), silver coating amount is 0.55 g/I, and gelatin is coated. Amount 1
．． Apply at a rate of 7g/rrf.

8th N: Third intermediate layer dioctyl phthalate, 2,5-dioctyl hydroquinone, ultraviolet absorber Tinuvin 328, surfactant (S-
2) Prepare a gelatin solution in which protection is dispersed,
Tinuvin coating amount 0.5g/rrf, gelatin coating amount 0.
Apply so that it becomes 9g/rd.

9th layer; protective layer colloidal silica, coating aids (S-3) and (S-4)
A gelatin solution containing hardeners (H-4) and (H-2) was used to coat the gelatin at a coating weight of 310.8 g/rff.

CD-13 (D-2) 1'D-33 CD-43 (T=1) (T-2) (T-3) (S-23 (S-3) (S-4) 0Ja (H-33 Shiagi (H-43 (YC-1) l (MC-1) Q E (CC-1) 1; Ki (CC-2) H3 Treatment process (processing temperature and processing time) [1] Immersion (color developer ) 38 °C 8 seconds [2] Fog exposure □ 10 seconds with IL&Fux [3] Color development 38 °C 2 minutes [4] Bleach fixing 35 °C 60 seconds [5] Stabilization treatment 25-30 °C 1 minute 30 seconds [6] ] Drying at 75-80°C for 1 minute Processing solution composition (color developer) (bleach-fix solution) (stabilizing solution) Image exposure was performed on each sample as described above, and running processing was performed using an automatic processor. The minimum density of each image at the beginning and end of the measurement was measured, and the results are shown in Table 5 below.
It was shown to. In addition, in the cough table, B, G, and R have the same meanings as in Table 3, Tables 1 and 2.
111, hereafter referred to as margin: ゛Poor/Table-5 As is clear from Table-5 above, this example also has the same tendency as Example-1 above, that is, 60% on the back side of the support.
Sample k coated with an emulsion layer containing more than mol% of silver chloride
It can be seen that deterioration of the white background is suppressed in samples No. 12 to No. 15.

〔Effect of the invention〕

According to the present invention, a silver halide color photographic material with excellent white background can be obtained even under processing conditions that speed up processing such as color development processing and reduce replenishment of each processing solution.

Claims (1)

[Claims] a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on one side of the support, and the other side of the support A silver halide color photographic material having a non-photosensitive layer, wherein the non-photosensitive layer contains silver halide grains containing at least 60 mol% of silver chloride. material.