JPS61153639A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To inhibit pressure fog and to enable quick development by specifying the total thickness of photographic constituent layers, the average particle size of a sliver halide in a blue-sensitive silver halide emulsion layer and the silver bromide content in silver halide in green- and red-sensitive silver halide emulsion layers. CONSTITUTION:The total thickness of photographic constituent layers which are all of hydrophilic colloidal layers on one side of a reflecting support on which photosensitive silver halide emulsion layers have been formed by coating is regulated to 5-11mum, preferably 6-9mum. Among the photographic constituent layers the photosensitive silver halide emulsion layers contain dye forming couplers, preferably polymer couplers, respectively. The average particle size of silver halide in the blue-sensitive silver halide emulsion layer is 0.20-0.55mum, preferably 0.30-0.50mum. Silver chlorobromide, silver chloroiodobromide or a mixture thereof is used as silver halide in the blue- and red-sensitive silver halide emulsion layers, and the silver bromide content in the silver halide is 5-65mol%.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a silver halide color photographic light-sensitive material, and more specifically, it has improved rapid development processability and processing stability in the rapid development process, and has reduced pressure fog. This invention relates to a silver halide color photographic material that can suppress generation.

In general, silver halide color photographic light-sensitive materials have three types of photographic silver halide emulsion layers selectively sensitized to have sensitivity to blue light, green light, and red light, coated on a support. For example, in silver halide photographic light-sensitive materials for color negatives, the layers are generally formed in the order of exposure: a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. A bleachable layer is provided between the blue-sensitive silver halide emulsion layer and the green-sensitive silver halide emulsion layer to absorb the blue light that passes through the blue-sensitive silver halide emulsion layer. A layer of several color filters is provided. Further, each emulsion layer is provided with other intermediate layers for various special purposes, and a protective layer as the outermost layer. Furthermore, for example, in a silver halide photographic light-sensitive material for color photographic paper, a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer are generally arranged in this order from the exposed side. Similar to silver halide photographic materials for color printing, interlayers such as an ultraviolet absorbing layer, protective layers, etc. are provided for special purposes. It is also known that each of these silver halide emulsion layers is provided in a different arrangement from the above, and furthermore, each silver halide emulsion layer is sensitive to substantially the same wavelength range for each color light. It is also known to use a photosensitive silver halide emulsion layer consisting of two layers. In these silver halide color photographic materials, exposed silver halide grains are developed using, for example, an aromatic primary amine color developing agent as a color developing agent, and the resulting color developing agent is oxidized. A dye image is formed by reaction of the product with the dye-forming coupler. In this method, phenolic or naphtholic cyan couplers, 5-pyrazolones, pyrazolinobenzimidazoles, pyrazolotriazoles, indacylones or cyanocoupler couplers, 5-pyrazolones, pyrazolinobenzimidazoles, pyrazolotriazoles, indacylones or cyanocouplers are typically used to form cyan, magenta and yellow dye images, respectively. An acetyl magenta coupler and an acylacetamide yellow coupler are used. These dye-forming couplers are contained in the light-sensitive silver halide emulsion layer or in the developer.The present invention is directed to the use of halogen-forming couplers that are previously contained in the silver halide emulsion layer and are rendered non-diffusible. This invention relates to silver oxide color photographic materials.

[Prior Art] In recent years, there has been a demand in the industry for silver halide color photographic materials that can be rapidly processed, have high image quality, have excellent processing stability, and are inexpensive.

In other words, silver halide color photographic light-sensitive materials are subjected to running processing in automatic processing machines installed in each laboratory, but as part of our efforts to improve service to users, processing is carried out on the same day of the development reception issue. In recent years, it has become necessary to process and return the material to the user within a few hours of receipt, and there is an urgent need to develop silver halide color photographic materials that can be processed even more rapidly. It's broken. Furthermore, in running processing, there is a problem in that photographic properties vary greatly between laboratories or even within the same laboratory due to changes in the composition of the processing solution and fluctuations in conditions, making it impossible to obtain stable photographic performance. Such changes in the composition of the processing solution and fluctuations in conditions are considered to be due to elution and accumulation of photographically active substances from the light-sensitive material during development processing (running) and other causes.

Therefore, in order to respond to variations in processing conditions, it is required that the development time, the temperature and pH of the developer, as well as the halogen concentration, especially the bromide ion concentration, etc. in the developer are highly controlled. However, compared to the development time or the temperature and pH of the developer, the bromine ion concentration in the developer is difficult to quantify and difficult to measure, making it difficult to control.

Therefore, it is particularly necessary to develop a silver halide color photographic light-sensitive material whose photographic performance has little dependence on bromine concentration and is highly process-stabilized. Processing stability is a problem even with current processing times, but processing stability becomes more of a problem in rapid processing. Furthermore, these treatments stabilized/
It is a matter of course that silver halogenide color photographic materials are required to be economically provided at low cost.

Therefore, if we look at the conventional techniques for silver halide color photographic light-sensitive materials that can be rapidly processed, for example, there is a technique for making silver halide fine grains as described in LD JP-A No. 51-77223; No., Special Publication 1982-
1-Aryl-3-pyrazolidones having a specific structure as described in JP-A-56-64339 in silver halide color photographic light-sensitive materials. Addition technology and JP-A-5
No. 7-144547, No. 58-50534, No. 58-
1- as described in No. 50535 and No. 58-50536
A technique of adding arylpyrazolidones to a silver halide color photographic light-sensitive material is known; There is also known a technique of using a color development accelerator when performing development. for example,
Such color development accelerators include US Pat.
No. 50,970, No. 2,515,147, No. 2,49
No. 6,903, No. 4.038.075, No. 4,119
, No. 462, British Patent No. 1,430.998, No. 1,4
No. 55,413, JP-A No. 53-15831, No. 55-
No. 62450, No. 55-62451, No. 55-624
No. 52, No. 55-62453, No. 51-12422, No. 55-62453, Special Publication No. 51-12422,
There are compounds described in No. 55-49728 and the like.

However, when using ■ or ■ of these conventional techniques,
Although the processing time was shortened, the processing stability was poor, and there were also problems with fogging and storage stability in same-day performance.

And, when using the fine grain silver halide of (2) above,
It has the disadvantage that processing stability is poor, and the sensitivity deteriorates as the particles become finer.

In addition, when the low silver bromide emulsion (2) above is used, less bromide ions are eluted into the processing solution from the silver halide color photographic light-sensitive material containing the low silver bromide emulsion, and the bromide ion concentration in the processing solution is Although rapid processing can be achieved because the bromide concentration can be set low, processing stability is poor if a silver halide color photographic light-sensitive material containing a low silver bromide emulsion is processed using a processing solution with a low bromide ion concentration. . Processing stability here refers to the degree of variation in sensitometry with respect to fluctuations in the processing solution composition, pH, temperature, protom ion concentration, etc., and to the contamination of other compounds other than the processing solution composition.

On the other hand, if we look at conventional techniques for improving processing stability, for example, as disclosed in JP-A-59-121036 and JP-A-59-120250, there are techniques that involve improving the processing solution. To the best of our knowledge, there is no example in which the processing stability has been substantially improved by improving silver halide color photographic materials.

Therefore, the present inventor previously proposed a technique shown in Japanese Patent Application No. 158782/1982. The previously proposed technology is a silver halide color photographic light-sensitive material having a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support. The average grain size of silver halide in the silver halide emulsion layer is 0.20 to 0.55.
A silver halide color photographic light-sensitive material, wherein the silver bromide content of silver halide in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is 5 to 65 mol%. , rapid color development processing is possible, and
It has excellent processing stability and can obtain high-quality images.

[Problems to be Solved by the Invention] As a result of continuing research on the previously proposed technology, the present inventor found that there was room for further improvement in terms of processing stability in faster development processing in a shorter time. Ta.

On the other hand, a technique for thinning photographic constituent layers is known as one technique for shortening the development processing time.

There are mainly four techniques for making the film thinner: Namely, (1) technology for polymerizing photographic materials such as couplers (see JP-A-58-28745, etc.); (2) technology for polymerizing or liquefying photographic additives such as ultraviolet absorbers (JP-A-58-28745);
111942, etc.), ■ Coupler two-equivalent technology (
Japanese Patent Application Laid-open No. 56-40825, etc.) is known, and there is also a technique for improving the coloring efficiency of couplers as described in Japanese Patent Application No. 17627-1982. According to such thin film technology, it is possible to shorten not only the development processing time but also the drying time. However, on the other hand, the thin film silver halide color photographic light-sensitive material has the disadvantage that pressure fog occurs significantly. be.

The present invention has been made in view of the above, and has rapid development processability,
Another technical object of the present invention is to provide a silver halide color photographic material that has further improved processing stability in the rapid development process and suppresses the occurrence of pressure fog.

[Means for Solving the Problems] The silver halide color photographic light-sensitive material of the present invention which solves the above-mentioned technical problems has at least one blue-sensitive silver halide emulsion layer and one green-sensitive silver halide emulsion layer on a reflective support. In a silver halide color photographic light-sensitive material having a photographic constituent layer including a red-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, the film thickness of the photographic constituent layer on the reflective support is 5 to 11 p. ,
m, and the average grain size of silver halide in the blue-sensitive silver halide emulsion layer is 0.20 to Q, 55ILm, and the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion The silver bromide content of the silver halide in the layer is 5 to 85.
It is characterized by being mol%.

According to the present invention, the technical problems of the present invention can be solved,
In particular, when using the previously proposed technology and thin film technology,
It was surprising to the present inventor that not only pressure fog can be suppressed and rapid development processing can be performed in a shorter time, but also processing stability in the rapid development processing can be further improved.

The present invention will be explained in more detail below.

. Here, the photographic constituent layers refer to all hydrophilic colloid layers involved in image formation, such as silver halide emulsion layers, subbing layers, intermediate layers (mere intermediate layers, filter layers, ultraviolet absorption layers, antihalation layers). etc.), protective layer, etc. In this way, the photographic constituent layers of the present invention refer to all the wood-philic colloid layers on the reflective support side coated with the photosensitive silver halide emulsion layer. is 5-11!11, preferably 6-9JL11. The film thickness of the photographic constituent layer is 114. If it exceeds m, the improvement in rapid processing properties, which is one of the objects of the present invention, will not be achieved. On the other hand, if the thickness of the photographic constituent layer is less than 5 layers, it will not be possible to suppress the occurrence of pressure fog.

Here, the film thickness of the photographic constituent layer is the value obtained by subtracting the film thickness of the reflective support from the film thickness of the photographic light-sensitive material, and was measured under the following conditions. That is, at a temperature of 25°C and a humidity of 40%, 24
After standing for a period of time, under the above conditions, Model E manufactured by Tokyo Seimitsu Co., Ltd.
-5T 100C film thickness measuring device.

In the present invention, any technique may be used to reduce the thickness of the photographic constituent layer to a thickness of 5 to 11 layers.
One or a combination of two or more of the above-mentioned thin film forming techniques (1) to (2) may be employed.

Techniques for thinning photographic constituent layers that can be preferably used in the present invention are listed below, but the present invention is not limited thereto.

Among the photographic constituent layers of the present invention, the light-sensitive silver halide emulsion layer contains a dye-forming coupler, and it is preferable to use a polymer coupler as the dye-forming coupler.

The polymer coupler used in the present invention is obtained by polymerizing coupler monomers, and as the yellow polymer coupler monomer, those represented by the following general formula (1) are preferable, and the cyan coupler The monomers are preferably those represented by the following general formula [■] or (III), and the magenta coupler monomers are preferably those represented by the following general formula (IV).

The following are blank general formulas: 4 alkyl group, alkoxy group, halogen atom, sulfo group, carboxy group,
represents a sulfonamide group, a carbamoyl group, a sulfamoyl group (e.g., an alkylsulfamoyl group), a cyan group, R3 represents an alkyl group or an aryl group, and X represents a coupling with an oxidized product of an aromatic primary amine developing agent. Represents a group that leaves when For example, aryloxy groups, carbamoyloxy groups, carbamoylmethoxy groups, acyloxy groups, sulfonamide groups, succinimide groups, etc., which are bonded to the coupling position through a hydrogen atom, halogen atom, oxygen atom, or nitrogen atom can be mentioned. In addition, U.S. Patent No. 3.471.583, Special Publication No. 1973-
No. 36894, JP-A-47-37425, JP-A No. 50-1
No. 0135, No. 50-117422, No. 50-117
No. 423, No. 50-130441, No. 51-1088
No. 41, No. 50-120334, No. 52-18315
You may use the leaving group described in No. 1, No. 53-52423, No. 53-105226, etc.

Segment (b) in the general formula (I) is a yellow coloring component, and the molecule fj Ca) contains a polymerizable vinyl group in which at least one of (b) is substituted at any position. A represents a linking group of -NHCO- (a carbon atom is bonded to a vinyl group), -a-C (a carbon atom is bonded to a vinyl group), or -0-.

In the general formula (II), R1, A and X have the same meanings as in the general formula CI). R4 and R5 each have the same meaning as Rt or Rz shown in the general formula CI). B is a divalent organic group, and n represents 0 or l.

Specifically, B is an alkylene group having l −12 carbon atoms, an arylene group having 6 to 12 carbon atoms, an arylene alkylene group having 7 to 24 carbon atoms, and an arylene alkylene group having 8 to 32 carbon atoms. It represents an arylenebisalkylene group having an atom, an alkylenebisarylene group having 13 to 34 carbon atoms, or an iminoarylenealkylene group.

In the general formula (m), R7 and R9 have the same meanings as R1 and R2 shown in the general formula (I), respectively, and X has the same meaning as in the general formula CI). R6 and Re are each a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, a halogen atom, a sulfo group, a carbamoyl group, a carboxy group, a sulfamoyl group, or a group represented by -NH-L (where L is alkoxycarbonyl) , alkylcarbamoyl,
(represents an acyl group such as an aliphatic, aromatic, or heterocyclic carboxylic acid or sulfonic acid), an acryloylamide group which may be substituted with other substituents, a methacryloylamino group, an acryloyloxy group, or a methacryloyloxy group. At least one of R6 and Re must have, as a terminal substituent, a group having a polymerizable vinyl group as shown in (a) of general formula (I).

In the general formula (1'V), X is the general formula CD
and R11l has the same meaning as R2 in the above general formula 1"I). Ru has the same meaning as R6 and R in the above general formula (m).
It is synonymous with i. C has the same meaning as R6 or Rs in the general formula (I [I), or -NH-(B); A -G-C
Expressed in Hz. Here, R+, A, and B have the same meanings as in the above general formula (H).

In the general formula (IT) where porcelain represents an integer from O to 3, (
At least one of C) and Ru must have a group having a polymerizable vinyl group, which is the segment (a) of the general formula (I).

The amount of the polymer coupler preferably used in the present invention is 5
Preferably it is IQ-3 to 5X+o-mol, more preferably 5X+o-2 to 3XlO-' mole.

For details about coupler monomers and polymer couplers obtained from the coupler monomers, see JP-A No. 57-1999. 9
No. 4752, No. 57-17.6038, No. 57-20
No. 4038, No. 58-28745, No. 58-4204
No. 4, No. 58-43955, No. 58-120252, No. 58-145944, No. 58-211756,
No. 58-224352, No. 59-40643, No. 5
No. 9-65844, No. 59-86048, U.S. Patent 3
．． No. 787,412, etc., and is also included in the present invention.

It goes without saying that the contents of these disclosures can be applied.

One of the preferable photographic additives to be included in the photographic structure M (for example, the intermediate layer) of the present invention is an ultraviolet absorber, and the ultraviolet absorber is preferably polymerized or liquefied. , the detailed technology is disclosed in JP-A-57-142975, JP-A-58-111942, JP-A-58-178351, JP-A-58-181041, JP-A-5
No. 9-19945, No. 59-23344, No. 59-2
No. 6733, No. 59-68731, etc., and it goes without saying that the contents disclosed in these can be applied to the present invention.

The amount of the ultraviolet absorber that can be used in the present invention is:
0.1-10 g/rrr' is preferred.

As the dye-forming coupler used in the light-sensitive silver halide emulsion layer among the photographic constituent layers of the present invention, it is preferable to use a polymer coupler as described above, but there are also two other dye-forming couplers.
It is also preferable to use an equivalent coupler, which also allows the photographic constituent layers to be made thinner. Preferred examples of 2-equivalent couplers are active point-substituted magenta couplers and active point-substituted pyrazolotriazole magenta couplers, as well as active point-substituted yeO-couplers,
These include active point substitution type cyan couplers.

Next, a preferred active site substitution type magenta coupler for use in the green-sensitive silver halide emulsion layer of the present invention will be described.

Examples of the active point substitution type magenta coupler of the present invention in which the active point substitution component is bonded via an oxygen atom include 1
For example, U.S. Pat. No. 3,4111,391, U.S. Pat.
, No. 478, JP-A-52-58533, JP-A No. 51-10
No. 8842, No. 51-117032, No. 51-112
No. 343, No. 52-55529, No. 52-90932
No. 52-20023, No. 51-110328,
No. 50-48922, No. 57-96334, No. 57
-96335, 57-96336, 57-96
No. 337, No. 57-96338, No. 57-96339
No. 57-96340, No. 57-96341, No. 57-96342, No. 57-96343, and the like.

In addition, as an example of an active site substitution component bonded via a sulfur atom, for example, U.S. Patent No. 3,227.554
No., Special Publication No. 53-34044, Japanese Patent Application Publication No. 1977-1692
No. 4, No. 54-80744, No. 55-62454,
No. 56-126833, No. 55-135835, No. 57-4044, No. 57-17950, No. 57-3
No. 5858, No. 58-50537, No. 58-5854
Examples include compounds described in No. 4 and the like.

Furthermore, as an example of an active point substitution component bonded via a nitrogen atom, for example, Japanese Patent Publication No. 50-3754
No. 0, No. 51-10100, JP-A No. 50-13041
No. 50-159336, No. 51-3232, No. 51-3233, No. 51-20826, No. 51-3
No. 0228.

No. 51-36938, No. 52-58922, No. 53
-123129, 55-118034, 56-
No. 38043, No. 56-38044, No. 56-408
Examples include compounds described in No. 25 and the like.

The amount of the active site substitution type magenta coupler of the present invention is not limited, but it is preferably 2 X+o-3 to 5 X+o-' mo/L/ per mole of silver in the green-sensitive silver halide emulsion layer.
Preferably, more preferably IXIQ-2 to 5Xl
G-' moles.

Next, the active site-substituted pyrazolotriazole magenta coupler preferably used in the present invention will be explained.

The active point substituted pyrazolotriazole magenta coupler used in the present invention is, for example, U.S. Patent No. 3.705,8
No. 96, No. 3,725,787, No. 3,758,30
No. 9, same 3. ato, No. 7et, British Patent 1,252,
No. 418, No. 1.334, 515, Special Publication No. 1984-42
No. 045, Japanese Patent Application No. 58-164882, No. 58-16
No. 7326, No. 58-206321, No. 58-214
No. 853, No. 58-217339, No. 59-2465
Compounds described in No. 3 and the like can be mentioned.

The amount of the active site-substituted pyrazolotriazole magenta coupler of the present invention is not limited, but is 2 x 10-3 to 5 x IQ- per mole of silver in the green-sensitive silver halide emulsion layer.
1 mol is preferable, more preferably 1 x+o-2~5
XlG”-T-lutea 6゜As the active point substitution type yellow coupler preferably used in the present invention, the so-called 2
Active point -〇-aryl substituted couplers called equivalent type couplers, active point -〇-acyl substituted couplers, active point hydantoin compound substituted couplers, active point urazole compound substituted couplers, active point succinimide compound substituted couplers, active point There are fluorine substituted couplers, active point chlorine or bromine substituted couplers, active point -0-sulfonyl substituted couplers, etc. Specific examples include U.S. Pat.
No. 5,508, No. 3.408,194, No. 3,582
, No. 322, No. 3.725.072, No. 3,891,
445, West German Patent No. 1,547,868, West German Patent Application No. 2,219,917, West German Application No. 2,261,381, West German Patent No. 2.414.0Of3, British Patent No. 1.425.020
No., Special Publication No. 1978-10783, Japanese Patent Publication No. 47-2613
No. 3, No. 48-73147, No. 51-102636, No. 50-6341, No. 50-123342, No. 5
No. 0-130442, No. 51-21827, No. 50-
No. 87650, No. 52-115219, No. 58-95
Examples include those described in No. 346 and the like.

Furthermore, the active point substitution type cyan coupler preferably used in the present invention is a so-called 2-equivalent type coupler, and a specific example thereof is disclosed in U.S. Patent No. 2.389.929.
No. 2,474,293, No. 2,895,828, No. 3,034,892, No. 3,311,478,
3,458.315, 3,476.583, 3,583,971, 3.591.383, 3
, No. 787,411, No. 3,772,002, No. 3,
No. 933,494, No. 4,004,929, West German Patent Application (OLS) No. 2,414,830, No. 2,45
No. 4,329, JP-A-48-59838, JP-A No. 48-5
No. 055, No. 51-146827, No. 52-9093
No. 2, No. 53-109630, No. 55-163537
No. 56-55945, No. 56-161541,
Examples include those described in Japanese Patent Publication No. 58-95346, Japanese Patent Publication No. 11572-1972, and the like.

The amount of the active point-substituted yellow coupler and the active point-substituted cyan coupler of the present invention is not limited, but the amount of each added per mole of silver in the blue-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is not limited. x10-3 to 5XIQ-mol, more preferably each IXIQ-2 to 5Xl
Q-1 mole.

The silver halide contained in the blue-sensitive silver halide emulsion layer of the present invention has an average grain size (average grain size) of 0.20-0.
55 molar mass, preferably 0.30 to 0.50 molar mass.

When the average particle size exceeds Q, 55pm, processing stability is poor;
In particular, the deterioration of processing stability is remarkable when the amount of potassium bromide changes. On the other hand, if the average grain size is less than 0.20 p, m, the sensitivity of the blue-sensitive silver halide emulsion layer is insufficient, resulting in magenta color turbidity.

The average grain size of the silver halide contained in the blue-sensitive silver halide emulsion layer of the present invention can be measured by various methods commonly used in the art for the above purpose. A suitable method is Loveland's "Particle Size Analysis Method" A, S, T, M, Symposium on Light e-Microscopy, 1855, 94-1.
22 or Chapter 2 of ``Theory of Photographic Processes'' by Mies and James, 3rd edition, published by Macmillan (19E18). This particle size can be measured using the particle's projected area or diameter approximation. If the particles are of substantially uniform shape, the particle size distribution will describe this fairly accurately as a diameter or projected area. be able to.

The silver halide used in the present invention may be a polydisperse emulsion in which the average grain size is distributed over a wide range, but it is preferably a substantially monodisperse emulsion.

In the present invention, the above-mentioned monodisperse silver halide grains are those in which most of the silver halide grains appear to have the same shape when the emulsion is observed using an electron microscope, have uniform grain sizes, and have the following formula: It has a defined particle size distribution. That is, when the standard deviation S of the particle size distribution is divided by the average particle size f, the value is 0.15 or less.

1 ≦ 0.15 The grain size here has the same meaning as the grain size described above regarding the average grain size, and in the case of cubic silver halide grains, the length of the side or the length of the side of the cubic silver halide grain, or In the case of particles, it is the length of one side when converted to a cube having the same volume, and when the individual particle size in this sense is ri and the number is ni, 7 is calculated by the following formula. defined.

Σni*ri Σni The relationship between particle size distribution is described in "Empirical relationship between sensitometric distribution and particle size distribution in photography" The Photographic Journal, Volume LXXIX (1949) 33
This can be determined by the method described in the article by Tribel and Smith, pages 0-338.

The silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention may be silver chlorobromide, silver chloroiodobromide, or a mixture thereof. The content is 5 to 65 mol%. One or both of the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer in the present invention may consist of two or more layers, and
In the present invention, the silver bromide content refers to the total silver bromide content of each layer in the total silver halide contained in each of the total green light-sensitive silver halide emulsion layer and the total red light-sensitive silver halide emulsion layer. When the silver bromide content exceeds 85 mol %, processing stability deteriorates, magenta color becomes cloudy, and image quality deteriorates.

On the other hand, when the silver bromide content is less than 5 mol %, processing stability deteriorates significantly.

When the silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention is silver chloroiodobromide, the silver iodide content does not exceed 2 mol%. Preferably.

The silver bromide content of the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is preferably 20 to Bθ mol%, more preferably 30 to 55 mol%.

The silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer of the present invention is substantially the same as the silver halide contained in the blue-sensitive silver halide emulsion layer. Monodisperse ones are preferred.

The composition of the silver halide contained in the blue-sensitive silver halide emulsion layer is not particularly limited, and may be silver bromide, silver chlorobromide, silver chloroiodobromide, or a mixture thereof. However, silver chlorobromide is preferable, with a silver bromide content of 30
~85 mol%. Furthermore, the blue-sensitive silver halide emulsion layer in the present invention may consist of two or more layers.

The average grain size of the silver halide contained in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is not particularly limited, but is preferably 0.1 to 2 JL, more preferably 0.2 to 2 JL. tu, ■, particularly preferably 0.25 to 0.8
This is the terminal layer.

The amount of silver (silver material amount) in the silver halide emulsion layer in the silver halide color photographic light-sensitive material of the present invention is not limited, and is 0.3 to Ig/m'' in the entire photosensitive silver halide emulsion layer. That is, in order to obtain excellent image quality, the silver amount is preferably less than Ig/rn', while in order to obtain high maximum density and high sensitivity, the silver amount is preferably 0. It is preferable that it is .3 g/m' or more.

Silver halide compositions preferably used in the present invention include silver chlorobromide and silver chloroiodobromide. Furthermore, a mixture of these may be used. In other words, since particularly fast developability is required in the present invention, it is preferable that the halogen composition of the silver halide contains chlorine atoms, and at least 1%.
The substantially monodisperse silver halide grains preferably used in the present invention are particularly preferably silver chlorobromide or silver chloroiodobromide containing silver fluoride. It may be obtained by any preparation method such as the ammonia method.

Alternatively, for example, seed grains may be produced using an acidic method, and then grown using an ammonia method, which has a fast growth rate, to grow to a predetermined size. control the
For example, it is preferable to simultaneously implant and mix silver ions and halide ions in amounts commensurate with the growth rate of silver halide grains, as described in JP-A-54-48521.

Further, the crystals of these silver halide grains may be normal crystals, twin crystals, or other crystals, and have [1,0,01 planes and [1,1
, 1] Any ratio can be used for the plane. Furthermore, even if the crystal structure of these silver halide grains is uniform from the inside to the outside, it has a layered structure (
Furthermore, these silver halides may be of the type that forms the latent image mainly on the surface or of the type that forms the latent image inside the grain. Silver oxide particles (Japanese Patent Application Laid-open No. 58-11393
No. 4, Japanese Patent Application No. 170070/1983) may also be used.

The silver halide grains according to the present invention are prepared as described above. A composition containing the silver halide grains is referred to herein as a silver halide emulsion.

These silver halide emulsions contain activated gelatin; sulfur sensitizers such as allylthiocarbamide, thiourea, cystine; selenium sensitizers; reduction sensitizers such as stannous salts, thiourea dioxide, Polyamines, etc.; noble metal sensitizers, such as gold sensitizers, specifically potassium aurithiocyanate, potassium chloroaurate, 2-aurothiol-3-
Sensitizers such as methylbenzothiazolium chloride or water-soluble salts such as ruthenium, palladium, platinum, rhodium, iridium, etc., specifically ammonium chloroparadate, potassium chlorooleate and sodium chlorovaladate (these These substances act as sensitizers or fog suppressants depending on the amount. It may also be chemically sensitized (for example, in combination with a sensitizer).

The silver halide emulsion according to the present invention is chemically ripened by adding a sulfur-containing compound, and before, during, or after this chemical ripening, a nitrogen-containing emulsion having at least one kind of hydroxytetrazaindene and a mercapto group is produced. It may contain at least one type of heterocyclic compound.

The silver halide used in the present invention is mixed with an appropriate sensitizing dye in an amount of 5 x 10 M to 3
-3 mol may be added for optical sensitization.

Various sensitizing dyes can be used, and each sensitizing dye can be used alone or in combination of two or more types. Examples of the sensitizing dyes that can be advantageously used in the present invention include the following: I can list kimono.

That is, examples of the sensitizing dye used in the blue-sensitive silver halide emulsion layer include West German Patent No. 929,080, US Patent No. 2,231,858, US Patent No. 2,493,748, and US Patent No. 2,503,778. No. 2,519.001, No. 2
, No. 912,329, No. 3,658,959, No. 3,
No. 872,897, No. 3,894.217, No. 4.0
No. 25,349, No. 4,048,572, British Patent 1
, No. 242,588, Special Publication No. 44-14030, No. 5
Examples include those described in No. 2-24844. Further, as a sensitizing dye used in a green-sensitive silver halide emulsion, for example, US Pat.
No. 2,072,1308, No. 2,739.141
No. 3, No. 2,945.7133, British Patent No. 505,1
Representative examples thereof include cyanine dyes, merocyanine dyes, and composite cyanine dyes as described in No. 1179 and the like. Furthermore, examples of sensitizing dyes used in red-sensitive silver halide emulsions include, for example, U.S. Pat. No. 2,289,234, U.S. Pat. , No. 829,
Typical examples thereof include cyanine dyes, merocyanine dyes, and composite cyanine dyes as described in Japanese Patent No. 2,776.280. Furthermore, cyanine dyes, merocyanine dyes or composite cyanine dyes as described in U.S. Pat. No. 2,213,995, U.S. Pat. It can be advantageously used in green-sensitive silver halide emulsions or red-sensitive silver halide emulsions.

These sensitizing dyes may be used alone or in combination.

The photographic material of the present invention may be optically sensitized in a desired wavelength range by a spectral sensitization method using cyanine or merocyanine dyes alone or in combination, if necessary.

A typical example of a particularly preferred spectral sensitization method is, for example, Japanese Patent Publication No. 43-493 concerning the combination of henzimidazololupocyanine and benzoxazolocarbocyanine.
No. 6, No. 43-22884, No. 45-18433,
No. 47-37443, No. 4B-28293, No. 49
No.-8209, No. 53-12375, JP-A-52-2
No. 3931, No. 52-51932, No. 54-8011
No. 8, No. 58-153926, No. 59-116646
No. 59-116647 and the like.

Further, regarding the combination of carbocyanine having a benzimidazole nucleus with other cyanine or merocyanine, for example, Japanese Patent Publication Nos. 45-25831 and 47-11
No. 114, No. 47-25379, No. 48-38406
No. 48-38407, No. 54-34535, No. 55-1569, JP-A-50-33220, No. 50
-38526, 51-107127, 51-1
No. 15820, No. 51-135528, No. 52-10
No. 4916, No. 52-104917, and the like.

Furthermore, regarding combinations of benzoxazolocarbocyanine (oxa-carbocyanine) and other carbocyanines, for example, Japanese Patent Publication Nos. 44-32753 and 46
-11627, Japanese Unexamined Patent Publication No. 1483/1983, and Japanese Patent Publication No. 38408/1983 regarding merocyanine.
No. 48-41204, No. 50-40662, JP-A No. 56-25728, No. 58-10753, No. 5
No. 8-91445, No. 59-116645, No. 50-
No. 33828 etc. are mentioned.

Further, regarding combinations of thiacarbocyanine and other carbocyanins, for example, Japanese Patent Publication No. 4'3-4932
No. 43-4933, No. 45-26470, No. 4
No. 6-18107, No. 47-8741, JP-A-59-
No. 114533, etc., and the method described in Japanese Patent Publication No. 114533, which uses zeromethine or dimethine merocyanine, monomethine or trimethine cyanine, and styryl dye, can be advantageously used.

In order to add these sensitizing dyes to the silver halide emulsion according to the present invention, a dye solution such as methyl alcohol, ethyl alcohol, acetone, dimethylformamide, or fluorinated alcohol described in Japanese Patent Publication No. 40659/1984 is used in advance. It is used by dissolving it in a wood-friendly organic solvent.

The addition may be made at any time such as at the start of chemical ripening of the silver halide emulsion, during ripening, or at the end of ripening, and in some cases, it may be added at a step immediately before coating the emulsion.

The silver halide color photographic light-sensitive material of the present invention may contain a water-soluble dye in the hydrophilic colloid layer as a filter dye or for various purposes such as preventing irradiation. Dyes include hemioquinol dyes, merocyanine dyes and azo dyes. Among them, oxonol dyes, hemioxonol dyes and merocyanine dyes are useful. Specific examples of dyes that can be used include British Patent No. 584.609, f, 277.
．． No. 429, JP-A-48-85130, JP-A No. 49-99
No. 620, No. 49-114420, No. 49-1295
No. 37, No. 52-108115, No. 59-25'84
No. 5, U.S. Patent No. 2,274,782, U.S. Patent No. 2.533,
No. 472, No. 2,958,879, No. 3,125,4
No. 48, No. 3,148.187, No. 3,177.07
No. 8, No. 3,247,127, No. 3,540,887
No. 3,575,704, No. 3,853,905, No. 3,718,472, No. 4,071,312,
It is described in No. 4,070,352.

Each of the silver halide emulsion layers according to the present invention can contain a coupler, that is, a compound capable of reacting with an oxidized product of a color developing agent to form a dye.

In the present invention, various yellow couplers, magenta couplers, and cyan couplers can be used as the couplers. These couplers are 2 as mentioned above.
Equivalent type couplers are preferred, but 4-equivalent type couplers may be used, or both may be used in combination, and it is also possible to use diffusible dye-releasing couplers, etc. in combination with these couplers. .

In addition, the silver halide color photographic light-sensitive material of the present invention includes:
A compound (DIR compound) that reacts with an oxidized color developing agent to release or form a development inhibitor may be contained.

In order to incorporate these couplers into the silver halide emulsion according to the present invention, if the couplers are alkali-soluble, they may be added as an alkaline solution.
If it is oil-soluble, for example, U.S. Pat. No. 2,322,
No. 027, No. 2,801,170, No. 2,801
, No. 171, No. 2,272,191 and No. 2,
No. 304,940, it is preferable to dissolve the coupler, etc. in a high boiling point solvent, optionally in combination with a low boiling point solvent, and to disperse it in the form of fine particles and add it to the silver halide emulsion. At this time, other hydroquinone derivatives, ultraviolet absorbers, anti-fading agents, etc. may be used in combination as necessary, and two or more couplers may be used in combination, which is preferred in the present invention. To explain in detail the method of adding couplers, etc., one or more of the couplers, etc. may be added together with other couplers, hydroquinone derivatives, anti-fading agents, ultraviolet absorbers, etc., as necessary, and organic acid amides, carbamates, etc. , esters,
Ketones, urea derivatives, ethers, hydrocarbons, etc., especially di-n-butyl phthalate, tri-resyl phosphate, triphenyl phosphate, di-isooctyl azelate, di-n-butyl sebacate, tri-n-hexyl phosphate , N,N-di-ethyl-caprylamidobutyl, N,N-diethyl laurylamide, n-pentadecyl phenyl ether, di-octyl phthalate,
High boiling point solvents such as n-nonylphenol, 3-pentadecyl phenylethyl ether, 2,5-di5eC-amylphenylbutyl ether, monophenyl-di-rochlorophenyl phosphate or fluoroparaffin,
and/or methyl acetate, ethyl acetate, propyl acetate, butyl acetate, butyl propionate, cyclohexanol, diethylene glycol monoacetate, nitromethane, carbon tetrachloride, chloroform, cyclohexane tetrahydrofuran, methyl alcohol, acetonitrile, dimethylformamide, dioxane, methyl ethyl ketone, etc. Anionic surfactants such as alkylbenzenesulfonic acids and alkylnaphthalenesulfonic acids and/or nonionic surfactants such as sorbitan sesquioleate and sorbitan monolaurate and/or parent substances such as gelatin are dissolved in a low boiling point solvent. It is mixed with an aqueous solution containing a wood binder, emulsified and dispersed using a high-speed rotary mixer, colloid mill, ultrasonic dispersion device, etc., and then added to a silver halide emulsion.

In addition, the above-mentioned couplers may be dispersed using a latex dispersion method.The latex dispersion method and its effects are described in JP-A-49-74538, JP-A-51-59943, and JP-A-5.
4-32552 and Research Disclosure, August 1876, No. 14850, pages 77-79.

Suitable latexes include, for example, styrene, acrylate,
n-butyl acrylate, n-butyl methacrylate,
2-acetoacetoxyethyl methacrylate, 2-(methacryloyloxy)ethyltrimethylammonium methosulfate, 3-(methacryloyloxy)propane-1-sulfonic acid sodium salt, 'N-isopropylacrylamide, N-(2-(2-methyl- 4-oxopentyl)] acrylamide, 2-acrylamide-2
-homopolymers, copolymers and terpolymers such as methylpropanesulfonic acid and the like.

The silver halide color photographic light-sensitive material of the present invention may contain various other photographic additives, such as antifoggants, stabilizers, ultraviolet absorbers, etc. described in Research Disclosure No. 17843, Color stain inhibitors, optical brighteners, color image fading inhibitors, antistatic agents, hardeners, surfactants, df plasticizers, wetting agents, etc. can be used, and especially when using ultraviolet absorbers, As mentioned above, those that have been polymerized or liquefied are preferred.

In the silver halide color photographic light-sensitive material of the present invention, the woody colloids used to prepare the emulsion include gelatin, derivative gelatin, graft polymers of gelatin and other polymers, proteins such as albumin and casein, Any of cellulose derivatives such as hydroxyethyl cellulose derivatives and carboxymethyl cellulose, starch derivatives, single or copolymer synthetic wood-philic polymers such as polyvinyl alcohol, polyvinylimidazole, and polyacrylamide are included.

Various coating methods such as dipping coating, air doctor coating, curtain coating, and hopper coating can be used to coat the emulsion layer and other constituent layers used in the present invention. Also, U.S. Patent No. 2.781,791;
It is also possible to use a simultaneous coating method of two or more layers by the method described in No. 941,898.

In the present invention, the coating position of each emulsion layer can be arbitrarily determined. For example, in the case of a full-color photosensitive material for photographic paper, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a green-sensitive silver It is preferable to arrange a silver halide emulsion layer and a red-sensitive silver halide emulsion layer.

In the light-sensitive material of the present invention, it is optional to provide an intermediate layer depending on the purpose, and various layers such as a filter layer, an anti-curl layer, a protective layer, and an annulation layer may be appropriately combined as photographic constituent layers. It can be used as In these photographic constituent layers, hydrophilic colloids that can be used in the emulsion layer as described above can be similarly used as a binder, and can also be contained in the emulsion layer as described above. Various photographic additives can be included.

There are no particular restrictions on the method of processing photographic light-sensitive materials using the silver halide emulsion according to the present invention, and any processing method can be applied. For example, typical methods include:
After color development, a bleach-fixing treatment is carried out, and if necessary, washing and/or stabilization treatment is carried out; after color development, bleaching and fixing are carried out separately, and if necessary, further washing and/or stabilization treatment is carried out; Alternatively, a method of pre-hardening, neutralization, color development, stop fixing, water washing, bleaching, fixing, water washing, post-hardening, water washing, color development, water washing, supplementary color development, stopping, bleaching, fixing, water washing, Any method may be used for processing, such as a method in which the developed silver produced by color development is subjected to halogenation bleaching and then color development is performed again to increase the amount of dye produced.

The color developing solution used for processing the silver halide emulsion of the present invention is an alkaline aqueous solution containing a color developing agent and preferably having a pH of 8 or higher, more preferably a pH of 9 to 12. The aromatic primary amine developing agent used as the color developing agent is a compound having a primary amino group on an aromatic ring and has the ability to develop silver halide exposed to light. Precursors that form such compounds may also be added.

The p-phenylenediamine type developing agent is typical of the color developing agent, and the following are preferred examples.

4-Amino-N, N-diethylaniline, 3-methyl-
4-amino-N, N-diethylaniline, 4-amino-
N-ethyl-N-β-hydroxyethylaniline, 3-
Methyl-4-amino-N-β-hydroxyethylaniline, 3-methyl-4-amino-N-ditiruto β-methoxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfone amidoethylaniline,
3-methoxy-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methoxy-4-amine-N
-ethyl-N-β-methoxyethylaniline, 3-acetamido-4-amino-N, N-dimethylaniline, N
-Ethyllate β-[β-(β-methoxyethoxy)ethoxy]ethyl-3-methyl-4-aminoaniline, toethyl-N-β-(β-methoxyethoxy)ethyl-3
-Methyl-4-7minoaniline, and salts thereof such as sulfates, hydrochlorides, sulfites, and ρ-toluenesulfonates.

Furthermore, for example, JP-A-48-64932, JP-A-50-1
No. 31526, No. 51-95849, and Bent et al., Journal of the American Chemical Society, 73@, pp. 3100-3125 (1951).
The ones described above are also listed as representative ones.

The amount of these aromatic primary amino compounds used depends on where the activity of the developer is set, but in order to increase the activity, it is preferable to increase the amount used, and the amount used is 0. It is used in a range of 0,002 mol/i to 0.7 mol/i. In addition, two or more compounds may be used in appropriate combination depending on the purpose. For example, 3-methyl-4-7minorN,N-diethylaniline and 3-methyl-4-amino-N-ethyl-N-β- Combinations of methanesulfonamide ethylaniline, 3-methyl-4-aminoethyl-N-β-methanesulfonamidoethylaniline and 3-methyl-4-amino-N-ethylroot β-hydroxyethylaniline, etc. depending on the purpose. Can be used in any combination.

The color developing solution used in the present invention may contain a monochrome developing agent as described in Japanese Patent Application No. 59-2455 filed by the present applicant, and may also contain various commonly added components such as sodium hydroxide. , alkali agents such as charcoal sodium, alkali metal sulfites, alkali metal hydrogen sulfites, alkali metal thiocyanates, alkali metal halides, benzyl alcohol, water softeners, thickeners, development accelerators, etc. are optionally contained. You can also do it.

Examples of additives other than the above added to the color developing solution include bromides such as potassium bromide and ammonium bromide;
In addition to compounds for quick processing solutions such as alkali iodide, nitrobenzimidazole, mercaptobenzimidazole, 5-methyl-benzotriazole, 1-phenyl-5-mercaptotetrazole, anti-stain agents, anti-sludge agents, preservatives, There are multilayer effect promoters, chelating agents, etc.

Bleaching agents used in bleaching solutions or bleach-fixing solutions in the bleaching process are generally known to be those in which metal ions such as iron, cobalt, and copper are coordinated with aminopolycarboxylic acids or organic acids such as oxalic acid and citric acid. There is. The following are typical examples of the above-mentioned 7minoboricarpon ugliness.

Ethylenediaminetetraacetic aciddiethylenetriaminepentaacetic acidpropylenediaminetetraacetic acidnitrilotriacetic acidiminodiacetic acid ethyl ether diaminetetraacetic acidethylenediaminetetrapropionic acidethylenediaminetetraacetic acid disodium saltdiethylenetriaminepentaacetic acid pentasodium saltnitrilotriacetic acid sodium saltBleaching solution contains various additives along with the above bleaching agents. When a bleach-fixing solution is used in the bleaching step, a solution containing a silver halide fixing agent in addition to the bleaching agent is used. In addition, the bleach-fix solution may further contain a halogen compound such as potassium bromide, and as in the case of the bleach solution described above, various other additives such as pHH buffers, optical brighteners, Antifoaming agents, surfactants, preservatives, chelating agents, stabilizers, organic solvents, etc. may be added or contained.

Silver halide fixing agents include, for example, sodium thiosulfate, ammonium periosulfate, potassium thiocyanate, sodium thiocyanate, thiourea, thioether, etc., which react with silver halide and dissolve in water. Examples include compounds that form a silver salt.

Color development of the silver halide color photographic light-sensitive material of the present invention,
The processing temperature of bleach-fixing (or bleaching, fixing), and various processing steps such as washing with water, stabilization, and drying, which are carried out as necessary, is preferably carried out at 30° C. or higher from the viewpoint of rapid processing.

The silver halide color photographic light-sensitive material of the present invention is disclosed in Japanese Unexamined Patent Publication No. 58
-14834, 58-105145, 58-1
No. 34634 and No. 58-18631 and patent application 1973
A stabilizing treatment as an alternative to washing may be performed as shown in Japanese Patent No. 8-2709 and Japanese Patent No. 59-89288.

[Effects of the Invention] According to the silver halide color photographic light-sensitive material of the present invention, the film thickness of the photographic constituent layer on the reflective support is 5 to 11 l,
and the average grain size of the silver halide in the blue-sensitive silver halide emulsion layer is 0.20 to 0.551 L■, and the silver halide in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is Since the silver bromide content is from 5 to 65 mol %, rapid development processing properties and processing stability in the rapid development processing are further improved, and the occurrence of pressure fog can also be suppressed.

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

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

Sample No. 1 Layer 1-I-1,2 g/rrf of gelatin7. 0.3
A blue-sensitive silver chlorobromide emulsion (silver bromide content and average grain size are shown in Table 1) of 2 g/rn' (in terms of silver, the same applies hereinafter), 0.
Q,3 dissolved in 40 g/m' of dioctyl phthalate
Qg/m' (7) Layer containing Izo-coupler (Y-1).

Layer 2...0.7g/rr+' gelatin, 10mg/
m' irradiation dye (AI-1), 5a+g
An intermediate layer consisting of (A I -2) of /rtI'.

Layer 3---1.3g/ITI' gelatin, 0.32
g/m' green-sensitive silver chlorobromide emulsion (silver bromide content as well as average grain size are shown in Table 1), 0.4 g/m'' magenta coupler dissolved in 0.30 g/m' dioctyl phthalate. A layer containing (M-1).

Layer 4---1.4 g/m' gelatin and 0-5 g/m'
m' of dioctyl phthalate. ,80g/r
A layer containing an ultraviolet absorber (UV-1) of l'l''.

Layer 5--1.4g/ln'c7) Gelatiny, 0.2
0 g/rn' red-sensitive silver chlorobromide emulsion (silver bromide content as well as average grain size are shown in Table 1), 0.45 g/m' cyan coupler dissolved in 0.20 g/ln' dioctyl phthalate. A calendar containing (C-1).

913---1.0g/rrf of gelatin and 0.2
0,30 dissolved in 0 g/m'' dioctyl phthalate
g/lri" ultraviolet absorber (UV-1) layer.

Layer 7φ: A layer containing 0.8 g/rr+' of gelatin.

In addition, as a hardening agent, 2,4-dichloro-8-hydroxy-3-) riazine sodium was added in layers 2.4 and 7.
Each was added in an amount of 0.017 g per 1 g of gelatin.

Sample No. 2 Layer 3-1 in sample No. 1! Silver halide color photographic light-sensitive material sample No. 2 was prepared in the same manner as sample No. 1 above except that #4 and P#6 were replaced as shown below.

Layer 3---0.1115g/rn' gelatin, 0
．． 32 g/rn'' green-sensitive silver chlorobromide emulsion (silver bromide content as well as average grain size are shown in Table 1), 0.2 g/m' pyrazolo dissolved in O, 15 g/m'' dioctyl phthalate. Layer containing triazole magenta coupler (M-2).

Layer 4---0.90g/rrfc7) Gelatin and 0
．． 0,8 dissolved in 1 g/g of dioctyl phthalate
Layer containing 0 g/m' of liquid ultraviolet absorber (UV-2).

W2C... cloudy 0.7g/rI'r' of gelatin and 0.7g/rI'r'
0,3 dissolved in 0.04 g/m' of dioctyl phthalate
A layer containing 0 g/rn' of liquid ultraviolet absorber (UV-2).

Sample No. j Silver halide color photographic light-sensitive material Sample No. 3 was prepared in the same manner as Sample No. 1 above, except that layers 3, 4, and 6 in Sample No. 1 were replaced with the following. .

Layer 3...-0.4g/gelatin, 0.32g/m
' green-sensitive silver chlorobromide emulsion (silver bromide content and average grain size are shown in Table 1), a layer containing 0.2 g/rrl of polymeric magenta coupler (M-3).

Layer 4...gelatin of φ0.80g/rr12 and 0.8
Layer containing 0 g/ba of polymeric ultraviolet absorber (UV-3).

Layer 6---0.7g/rn' gelatin and 0.30g
/m'' of polymeric ultraviolet absorber (UV-3).

Margin below (Y-1) t (M-1) t t t (AI-1) (AI-2) (UV-1) 05H1, (t) [2-equivalent magenta coupler (M-2)] [UV light Absorbent (UV-3)) Polymer latex (A) described in JP-A-58-111942 was used. That is, (a) and (
Two solutions of b) were prepared.

(a) 10% by weight aqueous solution of bone gelatin (pH 5, 8, 3
(at 5°C) 70g was heated and dissolved at 32°C.

Add a 70% by weight methanol solution of sodium decylbenzenesulfonate. Next, put (a) and (b) into an explosion-proof mixer and stir at high speed for 1 minute, then stop the mixer and remove ethyl acetate by distillation under reduced pressure. I left. In this way, a latex was prepared by dispersing the lipophilic polymer UV absorber in a dilute aqueous gelatin solution.

[Magenta coupler (M-3)] Polymer latex (A) described in JP-A-58-28745 was used. That is, two aqueous solutions containing 2 g of sodium salt of oleyl methyltauride were heated to 85° C. while stirring and passing a nitrogen stream through the solution.

Add 4011 of potassium persulfate 2130a + H to this mixture.
Next, 20 g of n-butyl acrylate and 20 g of coupler monomer (1) according to the manufacturing method described in the above publication were dissolved by heating in 40 ml of ethanol, and added at approximately 30 minute intervals while preventing crystal precipitation. .

After the addition, the mixture was heated and stirred at 85 to 95°C for 45 minutes, and then 120 layers of potassium persulfate in a 40-sample solution was added and reacted for an additional hour. After that, ethanol and unreacted n-butyl acrylate were distilled off as an azeotrope of water. I left.

The latex formed was cooled, the pH was adjusted to 6.0 with °IN-sodium hydroxide, and then filtered. The polymer concentration of the latex was 10.35%, and elemental analysis showed that the formed copolymer contained 47.2% of 1-(2,5-dichlorophenyl)-3-acryloylamino-2-pyrazolin-5-one. It was shown that it contained

Sample No. 4.5.8 was prepared as follows.

Table 1 shows the silver bromide content and average grain size of the blue-sensitive 110 silver halide emulsion layer, the green-sensitive silver halide emulsion layer, and the red-sensitive silver halide emulsion layer in samples NO61, 2, and 3. Instead, silver halide color photographic light-sensitive material sample No. 004.5.6 was prepared.

Sample No. 7.8.9 was prepared as follows.

Table 1 shows the silver bromide content and average grain size of the blue-sensitive silver halide emulsion layer, green-sensitive silver halide emulsion layer, and red-sensitive silver halide emulsion layer in sample No. 1.2.3. Silver halide color photographic light-sensitive material sample No.
, 7.8.9 was created.

Below are the blank spaces for each of the above photosensitive material samples No. 1 to 9. +7
After exposure through the lens, it was processed in the next step.

Processing steps (38 DEG C.) Color development 3 minutes bleach-fixing 1 minute water washing 1 minute drying 60-80"0 2 minutes The composition of the processing solution is as follows.

[Color developer] Pure water 800g Benzyl alcohol 15g Hydroxyamine sulfate 2.0g Potassium bromide
1.5g sodium chloride
1.0g potassium sulfite
2.0g triethanolamine
2.0 g N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-7 minoaniline sulfate 4.5 g 1-hydroxyethylidene-1,1-diphosphonic acid (60% aqueous solution)
1.5m standing potassium carbonate
32gWhitsx BB (50% aqueous solution)
2rsl (fluorescent brightener, manufactured by Sumima Kagaku Kogyo Co., Ltd.) Add pure water to make 11 and 20% potassium hydroxide or 10%
Adjust the pH to 10.1 with dilute sulfuric acid.

[Bleach-fix solution] Pure water 5501% Iron ethylenediaminetetraacetate (I[I) Ammonium 65g Ammonium thiosulfate 85g Sodium hydrogen sulfite 10g Sodium metabisulfite
2g ethylenediaminetetraacetic acid-disodium 2
Add 0g sodium bromide and 10g pure water to make one sentence, and add aqueous ammonia or dilute sulfuric acid to pl=
Adjust to 7.0.

Separately, add 0.5.1.0 potassium bromide to the above color developer.
, 2.0, and 2.5 g/vert were used to develop the same samples Nos. 1 to 3 as above, respectively.

Sensitometry was carried out on each sample obtained by a conventional method. Table 2 shows the gamma values at each potassium bromide concentration.

As is clear from Table 2, sample No. 5.6.8 of the present invention
．． It can be seen that in Sample No. 9, the gamma movement was significantly small with respect to fluctuations in the potassium bromide concentration in the developer, and the processing stability was improved. In addition, sample No. using an emulsion other than the present invention
, 1.2.3 are samples No. 4 to 8 using the emulsion of the present invention.
Processing stability is worse, and even when the film thickness is reduced,
In most cases, the processing stability was not improved. This shows that when the emulsion of the present invention is combined with film thinning, the processing stability is improved due to a synergistic effect.

Example 2 Using samples Nos. 1 to 9 of Example 1, a pressure burr test was conducted. The sample was divided into two parts and exposed to light so that the density of the blue-sensitive silver halide emulsion layer, the green-sensitive silver halide emulsion layer, and the red-sensitive silver halide emulsion layer was 0.5. Example 1
Using exactly the same processing solution as [I], one sample was developed by applying a pressure terminal to the emulsion surface immediately after the start of development.
[II] The other sample was prepared in the same manner as in Example 1. After constant bleaching, washing with water, and drying, the density of the blue-sensitive silver halide emulsion layer, the green-sensitive silver halide emulsion layer, and the red-sensitive silver halide emulsion layer was measured using a microdensitometer. The results shown indicate the occurrence of fog due to pressure in a wet state.

Table 3 From Table 3, sample No. 1.2 using an emulsion other than the present invention.
Although pressure fog increased with thinning of the film in No. 3, the sample of the present invention using the emulsion of the present invention showed no increase in pressure fog even when the film was thinned, and was excellent against pressure fog. I know that there is.

Example 3 Sample No. 4 and Sample No. 8 were used to test for rapid processability. That is, using each processing solution of Example 1 (however, the potassium bromide concentration of the color developer was set to 1.0 g/fL), the color development time was 1 minute 30 seconds, 2 minutes, and 2 minutes 3 seconds.
Sensitivity (S), gamma (γ), and maximum density (D m) when set to 0 seconds were investigated. The results are shown in Table 4.

Margins below Note that sample No. 4 and sample No. 6 have exactly the same emulsions in the blue-sensitive silver halide emulsion layer, the red-sensitive silver halide emulsion layer, and the green-sensitive silver halide emulsion layer, and the photographic structure is Only the thickness of the layer is changed.

From the results in Table 4, samples No. 4, No., and No. 8 all have sufficient photographic performance with a color development time of 2 minutes, but photographic performance of samples No. 4, No., and 8 with a development time of 1 minute and 30 seconds. When compared, it is clear that sample No. 006 of the present invention develops faster. Therefore, it was found that the thin film silver halide color photographic light-sensitive material of the present invention is also excellent in rapid processing properties.

Claims (1)

[Claims] A silver halide color photographic material having photographic constituent layers each comprising at least one blue-sensitive silver halide emulsion layer, one green-sensitive silver halide emulsion layer, and one red-sensitive silver halide emulsion layer on a reflective support. In the material, the film thickness of the photographic constituent layer on the reflective support is 5 to 11 μm, and the average grain size of silver halide in the blue-sensitive silver halide emulsion layer is 0.
．． 20 to 0.55 μm, and the silver bromide content of the silver halide in the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer is 5 to 65 mol%. Silver chemical color photographic material.