JPS59180555A - Silver halide photosensitive material - Google Patents

Abstract

PURPOSE:To obtain an image high in sensitivity and quality by forming green and red sensitive silver halide emulsion layers and plural blue sensitive silver halide emulsion layers different in photosensitivity in each specified relative position on a support. CONSTITUTION:Green and red sensitive silver halide emulsion layers are formed between a blue sensitive silver halide emulsion layer located farthest from a support and a blue sensitive silver halide emulsion layer lower in photosensitivity than the former. Silver halide micrograins are incorpoarated in the blue sensitive silver halide emulsion layer and/or its adjacent layer. The green sensitive layer is located father than the red sensitive layer from the support to lower the effect of light scattering. On the other hand, a green sensitive layer and/or a red sensitive layer is formed on the side of the blue less sensitive nearer to the support, and made lower in sensitivity than said green and red sensitive layers located between the blue less sensitive layer and the uppermost blue sensitive layer, and the green sensitive layer is located father than the red sensitive layer from the support apart from the view point of sharpness.

Description

Detailed Description of the Invention (1) Background Technical Field of the Invention The present invention relates to a color silver halide photographic light-sensitive material which is highly sensitive and has excellent image quality.

More specifically, regarding silver halide color photographic light-sensitive materials that exhibit high sensitivity and excellent graininess - prior art and its problems Conventionally, silver halide color photographic light-sensitive materials (hereinafter referred to as light-sensitive materials) Therefore, there is a demand for the development of photosensitive materials with high sensitivity and excellent image quality. Especially in recent years, opportunities to take photos under poor conditions with little light, such as indoors, have increased.
In addition, as photosensitive materials become smaller in format, there is a strong demand for the development of photosensitive materials that are highly sensitive and have excellent image quality such as sharpness, graininess, and interimage effects.

However, it is difficult to achieve both higher sensitivity and improved image quality.

For example, the following is known as a layer structure for achieving high sensitivity. For example, each of the red-sensitive, green-sensitive and blue-sensitive light-sensitive silver halide emulsion layers (hereinafter referred to as light-sensitive silver halide emulsion Q->simply "emulsion layer") coated on a support. In the axial layer structure, some or all of the light-sensitive emulsion layers are combined with a high-sensitivity rogenated Φμ emulsion layer (containing a diffusion-resistant coupler that develops substantially the same hue as each other). There is a layer structure in which the emulsion layer is separated into a high-sensitivity emulsion layer (hereinafter referred to as a high-speed emulsion layer) and a low-sensitivity silver arsenic emulsion layer (hereinafter referred to as a low-sensitivity emulsion layer), which are all adjacent to each other and have a -C layer.

With this configuration, the emulsion layer closer to the support receives δ light n@+y, and the amount of exposure light is absorbed by other emulsion layers farther away; There is a problem in that it takes time for the active agent to diffuse.

That is, with such an axial layer configuration, it is difficult to achieve high sensitivity in the green-sensitive and red-sensitive emulsion layers located in the lower layers (on the support side) due to the loss of fog light amount and the delay in the production of light.

On the other hand, a technique for changing the stacking order of each emulsion layer is known.

For example, U.S. Patent No. 3,663,228 discloses that 1) red-sensitive, green-sensitive, and blue-sensitive low-sensitivity emulsion layers are coated in order from a support, and A structure is described in which red-sensitive, green-sensitive, and blue-sensitive high-speed emulsion layers are coated on the far side from the support 11.

This technology provides higher sensitivity than the light-sensitive material with the axial layer structure, but each laminate unit of the high-sensitivity emulsion layer and the low-sensitivity emulsion layer is separated by a neutral density (neutral density) filter. As is clear from the left, increasing sensitivity is not considered a problem at all. A technique that attempts to eliminate the exposure loss of the green-sensitive emulsion layer by locating all the layers on the surface side farther from the support is υ;
1 is shown.

However, with this layer structure, the technology for increasing the sensitivity of the blue-sensitive emulsion layer is not addressed at all, and improvements in sharpness, graininess, and interimage effects are insufficient.

Other changes in layer composition! 3′! About the technology related to t-ma, '1, open IM (51-49 (+27-issue, 1tii)
53-97424 and U.S. Patent No. 4,129,
The technique described in the specification of No. 446 is known. However, although all of these have higher sensitivity than the light-sensitive materials with the axial layer structure shown in M, they not only have insufficient sensitivity of the green-sensitive and red-sensitive emulsion layers, but also have problems such as graininess and sharpness. The effect of improving image quality is also due to the lack of light.

(2) Purpose of the Invention The main object of the present invention is to provide a highly sensitive photosensitive material, and also to provide a photosensitive material that can produce high quality images.

Specifically, when a layer structure is adopted in which high-sensitivity layers with different color sensitivities are formed on low-sensitivity layers with different color sensitivities, Dmin+ (0,4 to o, 8 ) The object of the present invention is to provide a fluorinated pot photographic light-sensitive material 'fc' which has improved sensitivity, good gradation linearity, and improved graininess.

These objects are achieved by the present invention described below.

That is, the present invention comprises, on a support, at least one green-sensitive silver halide emulsion layer, at least one red-sensitive silver halide emulsion layer, and a plurality of blue-sensitive halide emulsion layers having a different light sensitivity. In the silver halogenide photographic light-sensitive material having a silver emulsion layer, the plurality of blue-sensitivity! - one of the silver halide emulsion layers is provided as a silver halide emulsion layer located on the farthest side from the support, and the blue-sensitive silver halide emulsion layer and the blue-sensitive silver halide emulsion At least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer are provided separated from the blue-sensitive silver halide emulsion layer, which has lower photosensitivity than the blue-sensitive silver halide emulsion layer. Low photosensitivity! This is a silver halide photographic light-sensitive material characterized in that an r-sensitive silver halide emulsion layer and/or a layer adjacent thereto contains fine grain silver halide.

■Specific structure of the invention Hereinafter, a specific configuration of the present invention will be explained in detail.

The silver halide photosensitive material (sensitive material) of the present invention has blue-sensitive silver halide emulsions rWI having a plurality of photosensitivity.

One of the blue-sensitive silver halide emulsion layers is provided on the farthest side from the support among all the silver halide emulsion layers. This uppermost blue-sensitive layer may be divided into two layers.

On the other hand, the photosensitive material of the present invention each has at least one green-sensitive emulsion layer and one red-sensitive emulsion layer.

At least one of each of the green-sensitive and red-sensitive emulsion layers is provided below the uppermost blue-sensitive layer (on the support side).

Furthermore, a blue-sensitive silver halide emulsion layer having lower photosensitivity than the uppermost blue-sensitive layer is provided below each of the at least one green-sensitive layer and one red-sensitive layer (on the support side). This low-sensitivity blue-sensitive layer is also divided into 2Ni layers. It is preferable to have

The green-sensitive layer and the red-sensitive layer interposed between the uppermost blue-sensitive layer and the low-light-sensitivity blue-sensitive layer may each be divided into two and nine layers.

In this case, the green-sensitive layer is preferably located on the side (upper layer) farther from the support than the red-sensitive layer.

This is because the green-sensitive layer is sensitive to wavelengths that have a large effect on visibility, so it is placed in the upper layer to reduce the influence of light scattering.

On the other hand, it is preferable that at least one green-sensitive layer and/or one red-sensitive layer is provided on the support side (lower side) of the low-light-sensitivity blue-sensitive layer. Such a green-sensitive layer and a red-sensitive layer have a low photosensitivity as well as a green-sensitive layer and a red-sensitive layer interposed between the uppermost blue-sensitive layer and the low-photosensitivity blue-sensitive layer, respectively. It is assumed that the difference in sensitivity between the two is about ΔI og E "' O-2 to 1.0.

It is preferable that both the green-sensitive layer and the red-sensitive layer with low light sensitivity are provided, and in terms of sharpness, the green-sensitive layer is further away from the support than the red-sensitive layer. side (upper layer)
It is preferable to be located at .

Note that the green-sensitive layer and the red-sensitive layer with low photosensitivity may be separated into 211 layers, respectively.

Furthermore, when the above-mentioned low-sensitivity blue-sensitive emulsion III is divided into two or more layers, a lower-sensitivity blue-sensitive layer is positioned on the support side, and a lower-sensitivity blue-sensitive emulsion layer is placed between these two low-sensitivity blue-sensitive emulsion layers. A green-sensitive layer and/or a red-sensitive layer may also be interposed. .

Furthermore, a green-sensitive layer and/or a red-sensitive layer having a lower sensitivity may be provided below the blue-sensitive layer having a lower sensitivity.

Examples of the most preferred layer configurations in the present invention are shown below, but the present invention is not limited to these. In addition, in the following, B is a blue-sensitive layer and G is a green-sensitive layer 1.
-1 几 indicates the red-sensitive layer, H attached to B, G and R,
H' indicates high photosensitivity, L and L' indicate low photosensitivity, H is more sensitive than 11', and L is more sensitive than L'. In the following, the order of layer formation from the support is shown.

In such a case, it is preferable to interpose a non-photosensitive intermediate layer between adjacent layers having different color sensitivities.

Further, such a non-photosensitive intermediate layer may contain a scavenger substance or the like that reacts with the oxidized form of the developing agent to deactivate it.

The composition of silver halide in each emulsion layer is preferably silver iodobromide or silver bromide, but silver chlorobromide, silver chloroiodobromide, etc. may also be used.

Regarding the grain size of the silver halide grains in the emulsion layer, in each high-sensitivity layer, the presence of small grains with large light scattering should be avoided in order to reduce sharpness deterioration for the layer located on the support side. preferable.

For this reason, the average grain size of the silver halide grains in each high-sensitivity layer is preferably n, 5 to 2.5 .mu., particularly n, 7 to 2.5 .mu..
When dividing the high-sensitivity III into two layers, the higher-sensitivity layer'fc (1.7 to 2.5μ, the other 0.5μ
The thickness should be approximately 1.5μ.

On the other hand, the average grain size of the silver halide grains in each low-sensitivity layer is preferably from 0.2 to 1.5 microns, particularly from 0.2 to 1.0 microns. In this case, when dividing the low-sensitivity layer into two layers,
One side is 0.5~1.5μ, and the other layer is 0.2~1.5μ.
The thickness should be approximately 1.0μ.

Even if such silver halide grains are monodisperse,
Although it may be polydisperse, monodisperse is preferable from the viewpoint of improving graininess and sharpness.

In this case, it is preferable that the emulsion be a monodisperse emulsion with a coefficient of variation σ/7 of 0.2 or less, where σ is the standard deviation of the r1 particle size distribution and the average particle diameter of the grains.

Further, there is no restriction on the crystal structure of the silver halide grains in the emulsion layer having each of these color sensitivities, and so-called core-shell type grains and other so-called core-shell type grains can be used.

There are no restrictions on the method of manufacturing the emulsion layer having each of these color sensitivities, and any known method can be applied. and,
Any protective colloid such as gelatin may be used as the protective colloid.

The emulsions of the emulsion layers having each color sensitivity can be chemically sensitized by any known method.

Then, this silver halide is optically sensitized to a desired wavelength range using a cyanine dye, a merocyanine dye, etc., and is given a desired color sensitivity.

Further, it is preferable that the emulsion layer having each color sensitivity contains a coupler corresponding to the color sensitivity. The method of combining couplers depending on the color sensitivity may be carried out in accordance with a known method, and any known couplers can be used.

The coating speed of each emulsion layer is approximately 4 to 40 my/d-. The amount of the coupler is about 0.01 to 0.4 mol per mol of silver halide.

In addition, the intermediate layer is a color-sensitive sac interposed between the emulsion layers to prevent color discoloration, and as mentioned above, it is made of a hydrophilic binder such as gelatin. Scavengers and the like are contained as necessary.

Under such a premise, a predetermined layer among the above-mentioned constituent layers contains fine grain silver halide.

In the present invention, the layer containing fine grain silver halide is a green-sensitive layer located below the blue-sensitive layer located farthest from the support, and a low-photosensitivity layer provided below the red-sensitive layer. blue-sensitive layer and/i or a layer adjacent thereto.

In this case, when it is contained in a low-light-sensitivity blue-sensitive layer, if it is divided into two or more layers, it may not be contained in that one layer, regardless of whether they are divided into adjacent layers.
It may be contained in all of them. just,
When separated by another color-sensitive layer, it is preferably contained at least in the layer located on the lower layer side (support side).

On the other hand, in the case where a layer adjacent to a low-light sensitivity blue-sensitive layer contains fine-grained silver logefluoride in addition to this, the adjacent layer refers to a low-light sensitivity blue-sensitive emulsion layer. It refers to the top and bottom two layers counting from the top.

In this case, when the low-light-sensitivity blue-sensitive layer is divided by other layers, it is sufficient that it is at least one of them, but it is at least the blue-sensitive layer located on the upper layer side. It is preferable that there be.

In such a case, the adjacent layer may be, in particular,
An intermediate layer adjacent to the upper side of the low-speed blue-sensitive layer (support and anti-body @) or below the low-speed blue-sensitive layer (support side) 1
Preferably, the layer is an intermediate layer, a green-sensitive layer, or a red-sensitive layer located at the second layer or the second layer.

In particular, low-light sensitivity blue-sensitive layers and/or
or an intermediate layer adjacent to the lower part contains fine grain silver halide, and if necessary, an intermediate layer adjacent to the upper part of the low-sensitivity blue-sensitive layer and/or a green part located below the low-sensitivity blue-sensitive layer. It is preferred that the sensitive layer or red-sensitive layer further contain fine grain silver halide.

The fine grain silver halide contained has an average grain size of 0.2μ or less, more preferably 0.03 to 0.15μ, and suppresses iodine, bromine, etc. released from the emulsion layer during development. It adsorbs and captures substances.

Fine-grained silver halide is usually applied to color-sensitive emulsion layers and/or interlayers in the range of 2 to 20"9/d using a coating scissor tip.
m2, especially those containing 3 to 10 mg/dm2.

The fine grain silver halogenide is preferably substantially non-photosensitive.

Such fine grains of silver halogenide may be polydisperse or monodisperse, but are preferably monodisperse with a coefficient of variation of 0.2 or less.

These are manufactured by a known method, and are usually mixed with the emulsion of the layer containing the entire emulsion before coating.

The fine silver halide particles are preferably steel bromide or silver iodobromide, particularly silver iodobromide having a silver iodide content of 4 molt or more.

The photosensitive material of the present invention is useful for various uses, and is particularly useful as a color negative film.

To explain the photosensitive material of the present invention in more detail,
A conventional colored magenta cobbler can be used in the green-sensitive emulsion layer of the present invention. Colored magenta couplers include U.S. Pat. No. 2,801.171, U.S. Pat.
519,429 specifications and Japanese Patent Publication No. 48-2793
Those described in Publication No. 0 etc. can be used.

The colored magenta turnip 2- which is sometimes suitably used is as follows.

b HM Furthermore, a conventional 2-docyan coupler can be used in the red-sensitive emulsion layer of the present invention. Colored cyan coverr is patented in Japanese Patent Publication No. 55-32461 and British Patent No. 1.
No. 084480 etc.: those described can be used.

Especially as a colored cyan coupler.

The following may be mentioned.

0000161 (33) The photosensitive emulsion layer constituting the photosensitive paulownia material of the present invention can contain a color forming color corresponding to fL.

As the yellow coloring coupler, a known open-chain ketomethylene coupler can be used. These tipenzoylacetanilide and biparoylacetanilide compounds can be advantageously used.

A specific example of a yellow coupler is disclosed in Japanese Patent Application Laid-Open No. 47-26133.
No. 48-29432, No. 50-87650, No. 51-17438, No. 51-102636, Japanese Patent Publication No. 45-19956, U.S. Patent No. 2,875,057, No. 3,408,194 No. 3519429,
Special Publication No. 51-33410, No. 51-10783, No. 46-1 qo3i00 (JOHOOOO, □I (25 0/.

b A 0H.

0〃C! 001-J A 0TT3 0/ Shun 115 j Cβ Magenta coloring cazolers include birazolone-based compounds, indacylon-based compounds, cyanoacetyl f-carbon compounds,
Pyrazolotriazole can be used in combination with kumquats, such as pyrazolotriazole, and pyrazolone compounds are particularly advantageous.

The specific ψ1j of maze/recolorable cassoler that can be used is disclosed in JP-A-49-111631, JP-A-48-27930, JP-A-56-29236, and U.S. Patent No. 2,600,78.
No. 8, No. 3,062. '653, same No. 3.408,
No. 194%, No. 3,5], No. 9,429, JP-A n (
(No. 57-94752 Suzarch Disclosure 12
443, etc.

Particularly preferred casolers are as follows.

As a cyan coloring color, phenolic 16 compound,
Naphthol-based compounds and other compounds can be used.

Specific examples thereof include U.S. Patent No. 2,423,730 and U.S. Pat.
, No. 474,293, No. 2,895,826, Japanese Unexamined Patent Publication No. 117422/1980, and the like.

Particularly preferred curlers are as follows.

H t-C511■ t t-Q, Hi Sumire (〕A O5)(Is(t) 00H20ONH[jFI20H200H30H Os)lt　t　(t) H H (3sF(tt(t) A 06 H+ tit) Two or more of the above couplers can be contained in the same layer.

Furthermore, even if the same f-hybrid compound is contained in two or more different layers, a method of incorporating an L coupler into an emulsion layer is known (and the present invention may also follow this known addition method. The emulsion layer contains a non-diffusible compound (DID
compounds) can be added.

As a DIR compound, JP-A No. 52-82,424,
U.S. Patent No. 2,327,554, U.S. Patent No. 3,227゜5
No. 54, No. 3.615.506, Special Publication No. 51-16.
No. 141, JP-A No. 54-145, 135, No. 57-1
51.9474 etc. can be used for one advantage.

This is a particularly preferred DIR ratio anastomosis record.

H3 Of The photographic constituent layers such as the non-photosensitive intermediate layer of the present invention may contain photographic additives such as anti-staining agents. For "prevention of contamination", compounds described in JP-A No. 4 FI-2,128 and US Pat. No. 2,728,659 can be advantageously used, and the following compounds are particularly preferred.

Of(L HOH H2?H2 CF(3) The silver halide emulsions used in the emulsions of the present invention may be mechanically sensitized. Enru.

1- namely activated gelatin, water-soluble gold salt, water-soluble platinum salt,
Water-soluble palladium salt, water-soluble rhodium salt.

Precious metal sensitizers such as water-bathable iridium salts; sulfur sensitizers; selenium sensitizers: chemical sensitizers such as reduction sensitizers such as borian ions and stannous chloride, etc. alone or in combination. can be chemically sensitized.

Furthermore, this silver halide can be optically sensitized to a desired wavelength range, for example, an optical sensitizer such as a cyanine dye such as a zeromethine dye, a monomethine dye, a dimethine dye, a trimethine dye, or an optical sensitizer such as a merocyanine dye. Alternatively, optical sensitization can be achieved in combination (for example, superchromatic sensitization).

The photosensitive material of the present invention also includes a photosensitive layer and/or other constituent layers (for example, an intermediate layer, a subbing layer, a filter layer, a protective layer,
(image-receiving layer, etc.) may contain various photographic additives depending on the purpose.

For example, stabilizers and antifoggants such as azaindenes, triazoles, tetrazoles, imidazolium salts, tetrazolium salts, and terihydroxy compounds; aldehyde-based, aziridine-based, inoxazocal-based, hinyl sulfone-based, acryloyl-based, and anti-fogging agents , maleimi P type, methanesulfonic acid ester type,
Hardening agents such as triazine; Development accelerators such as he/cyl alcohol and holoxyethylene compounds; Image stabilizers such as Chroman, Claman, hisphenol, and phosphite esters; Wax, high grade There are lubricants such as glycerides of fatty acids and higher alcohol esters of higher fatty acids.

In addition, it can be used as a coating aid as a surfactant, an emulsifier, a permeability improver that burns into processing liquids, an antifoaming agent, or as a material for controlling the physical properties of light-sensitive materials. , nonionic or amphoteric types can be used.

Mordants include N-guanylhydrazone compounds,
Quaternary onium chlorides and the like are effective.

As the antistatic agent, diacetyl cellulose, styrene perfluoroalkyl rhidium maleate copolymer, alkali salt of a reaction product of styrene-maleic anhydride copolymer and p-7 minobenmonesulfonic acid, etc. are effective.

Examples of the color turbidity inhibitor include polymers containing vinylpyrrolidone monomers, polymers containing vinylimidazole monomers, and the like. Matting agents include polymethyl methacrylate, polystyrene and alkali-soluble bottles.
Examples include Rimmer.

Furthermore, it is also possible to use colloidal arsenic acids.

! Examples of the latex added to improve the physical properties of the film include copolymers of acrylic esters, vinyl esters, and other monomers having ethylene groups.

Examples of gelatin plasticizers include glycerin and glycol compounds, and examples of thickeners include styrene-sodium maleate copolymers, alkyl vinyl ether-maleic acid copolymers, etc. The material is manufactured by coating a silver halide emulsion layer containing various photographic additives as described above and all other constituent layers on a support. Advantageously used supports include, for example, baryta paper, polyethylene-coated paper, polyzolopyrene synthetic paper, glass paper, cellulose acetate, cellulose nitrate, polyvinyl acetal, polyzolopyrene, polyester films such as polyethylene terephthalate, polystyrene, etc. These supports are selected as appropriate depending on the intended use of the photosensitive material.
,ru.

These supports are subjected to undercoat processing, if necessary.

The light-sensitive material of the present invention can be developed by a commonly used known method after being exposed to light.

That is, color development can be carried out by a color development method that is not commonly used.

In the reversal method, the image is developed with a black-and-white negative developer without being washed, then exposed to white light or treated with a bath containing a caustic agent, and then color-developed with an alkaline developer containing a color developing agent.

There are no particular restrictions on the processing method, and any processing method can be applied. For example, representative methods include a method in which a target fixing process is performed after color development, followed by washing with water and stabilization treatment as necessary, or a method in which color development 6 is performed. It is also known that the marking and fixing processes are performed separately, and further water washing and stabilization treatment are performed as necessary.Also, it is known that photosensitive materials are processed using anhydrifier agents such as hydrogen peroxide and cobalt complex salts. Oh,
It is also possible to process using the method of Kohori et al.

In addition, in order to perform the process quickly, the process may be carried out at the cylinder temperature, or may be carried out at room temperature or below that temperature in special cases. Pre-hardening treatment can also be carried out when performing high temperature rapid treatment.

Further, depending on the type of processing agent to be used, auxiliary baths such as various neutralizing baths may be required, and these auxiliary baths can be used as necessary.

Useful color developing systems include primary phenylene diamines and derivatives thereof, including the following 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-ethyl-N-,7-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-p-methanesulfonamidoethylaniline,
3-methyl-4-amino-N-ethyl-N-β-methoxyethylaniline, 3-p-methanesulfonamidoethyl-4-amino-N, N-diethylaniline,
3-Methoxy-4-amino-N-ethyl-N-β- and doroquinethylaniline, 3-methoxy-4-amino-N
-Eru N-μm Metkin ethylaniline, 3-acetamido-4-a is no N, N-diethylaniline, 4
-Amino-N, N-dimethylanily, N-enal-N
-β-[β-(l/-methoxyethoxy)ethoxy]ethyl-3-methyl-4-aminoaniline, NC ethyl-
NJ(μmmethoxy)ethyl-3-methyl-4
- Aminoanilines and their salts, such as sulfates.

These include hydrochloride, sulfite, p-)luenesulfonate, and the like.

■Specific Effects of the Invention According to the present invention, the leg sensitivity (Dmin+o
, i) in addition to the sensitization of Dmin (Q, '4~0.8
) has been significantly improved, and an extremely sensitive material can be seen. The linearity of the gradations is also very good.

This is probably because development inhibitory substances such as halogens that diffuse from the upper layer side during development are captured by the fine grain silver halide, reducing the inhibitory effect.

Furthermore, unlike in the case of other layer configurations, the presence of fine grain silver halide significantly improves graininess, which is an effect that could not previously be expected.

(2) Specific Examples of the Invention Hereinafter, the present invention will be explained in more detail by giving specific examples of the invention.

In all of the following examples, the amount added in the light-sensitive material is expressed per liter. In addition, silver halide and colloidal silver are shown in terms of silver.

EXAMPLE With the layer structure shown in Table 1 below, a multi-layered support was coated with an antihalation layer consisting of Larfilm Samples 51 to 9.
It exploded when it was set on fire.

In Table 1, B, G, R, T(, T has the same meaning as above, ■ indicates an intermediate layer, Y indicates a yellow filter layer, T'r indicates a protective layer, and Ba5e indicates a support. Also, AgX ' indicates fine grain silver halide.

Furthermore, BH, GH, RT-IK (1*) indicates that the photosensitive silver iodobromide emulsions contained in each layer are all monodisperse emulsions.

Each layer is as follows.

RL coefficient of variation σ/〒o, 35, AgI A of 6 moles
The emulsion (emulsion ■) consisting of g B r I is color sensitized to red sensitivity, 0.709, and A g B with σ/〒0.29 and 6 moles of AgI.
A red-sensitized emulsion (emulsion ■) consisting of r I is composed of 0.72 and 2.29 of gelatin, and 1.02 of 1-hydroxy-4-(β-methoxyethylaminocarzenyl). methoxy)-N-Cδ-(2,4-J
-t-amylphenoxy)butyl]-2-naphthamide (C-1) and 0.075 F of 1-hydroxy-4-
(4-(I-hydroxy-δ-acetamide-3+6-
disulfo-2-naphthylazo)phenoxy]-N-(δ
-(2,4-di-t-amylphenoxy)butyl-2-
Naphthamide cinnatriud (0-1) and 0.019 of 1-hydroxy-2-[δ-(2°0.0
79 2-bromo-4-(z, 2,3,3°4.4,5
, 5, 6, 6, 7, 7, 8, 8, 9, 9. ~hexadecafluorononanoylamino)-7-nitro-2-(1-
Phenyl-5-tetrazolylthio)-1-indanone (
D-1) A low-speed red-sensitive emulsion layer containing 0.87 tricresyl phosphini) (TCP) dissolved therein.

R,H 1,5? It consists of a silver iodobromide emulsion (emulsion I) color-sensitized to a red sensitivity of
0 in which f colored cyan coupler (QO-1) was dissolved
, a highly sensitive red-sensitive emulsion layer containing TCP of 302.

RL σ/〒0.33. An emulsion (emulsion ■) consisting of AgBrI with a mol ratio of I6 and sensitized to green sensitivity, 0.707, and emulsion I 09702, which was color sensitized to green sensitivity [7], and 2.22.
gelatin and 0.89 J-(2,4,6-1-lichlorophenyl)-
3-C3-(2,4-di-t-amylphenoxyacetamido)benzamidocou 5-pyrazolone (M-1) and 0.15 f of 1-(2,4,6-)lichlorophenyl)-4- (1-naphthylazo)-3-(2-chloro-5
DIR of -octadecenyl succinimide anilino)-5-uzolone (CM-1,) and n, o l 2 r
A low-speed green-sensitive emulsion layer containing 0.959 TCP in which compound (D-1) was dissolved.

Gl (consisting of emulsion I of 1,62 color sensitized to green sensitivity and gelatin of 1.99, magenta coupler (M-1) of 0.20 f, and emulsion I of (1,0
A high-sensitivity green-sensitive emulsion layer containing 0.259 TOP in which a 49F colored cyan coupler (OM-1) was dissolved.

RL Emulsion I of 0.29 and emulsion ■ of 0.32 which are color sensitized to blue sensitivity, gelatin of 1.97, and Karashi, 1.5? of α-B-B Royroo α-(1-Seungji, n,
-2-phenylated-3,5-dioxoimidazolidine-
4-yl)-2'-chloro-5'-[α-totecyloxycarzenyl)ethoxycal 71? A low-speed blue-sensitive emulsion layer containing 0.62 TCP in which [Nyl]acedoanilide (Y-1) is dissolved.

H Comprised of 0.89 emulsion ■ sensitized to blue sensitivity and 1.57 gelatin, 0 in which 1.309 yellow coupler (Y-1) was dissolved.
, a high-speed blue-sensitive emulsion layer containing a TOP of 65 f.

RH'GH''BH'' The above RH, GH, and BH emulsions
I content content 6 coefficient average particle size 0.75μ, σ/H0,1
Emulsion IT consisting of AgBrI of 2.

Above 0.82 gelatin and 0.07? Diptyl phthalate (D
An intermediate layer containing B I').

O,15f of yellow colloidal silver and 0.29 of antifouling agent (HQ-], ) were dissolved.
, 11 f DBP and 1.5 f gelatin.

r Gelatin protective layer.

In addition, fine grain silver halogenide is i+), 088μ, σ
/70.14, A, AgBr I with 2 mol of gI, as shown here ((After exposing each of the prepared samples 1 to 9 with wedge light using blue light, green light, and red light, The following processing was performed.

Treatment Step [Treatment Temperature 38° C.] Treatment Time The composition of the treatment liquid used in the can treatment step is as follows.

[Color developer]

[Bleach solution] 1 (1, (1r ammonium bromide 150.05' glacial acetic acid
10.0ml! Add water and it
Then, adjust the pH to 6.0 VC using aqueous ammonia.

[Fixer]

Ammonium thiosulfate L75. O5' Anhydrous sodium sulfite 8.5 7 Sodium metasulfite 2.3 7 Add water to bring it to lt, and adjust to H6.0 using acetic acid.

[Stabilizing liquid]

The obtained 81 sensitivity, S2 sensitivity and RM8 are shown in Table 2.

In this case, S1 sensitivity and S2 sensitivity are the reciprocals of the exposure amount that give densities of Dmin + 0.1 and l) min + 0.5, respectively, when the minimum density is Dmin, expressed as relative values to the sample ml. be.

In addition, RM8 is a measure of graininess, Dmin+J,
0, it is the standard deviation of the variation in density value that occurs when scanning with a microdensitometer with a scanning aperture of 25μ, and the smaller this value is, the better the graininess is.

Blue light (B), green light (G), red light (R) each JI
These values for VC are shown in Table 2.

From the results shown in Table 2, the photosensitive materials of the present invention (Samples 3 to 9)
) It can be seen that extremely good values can be obtained for both K S++ 82 + RMS. Furthermore, it can be seen that when all of the high-sensitivity layers are monodisperse emulsions as in sample A9, a very large effect is produced.

Applicant Konishiroku Photo Industry Co., Ltd. Agent Patent Attorney Yo Ishii −

Claims (1)

[Claims] 1. A halogenated material having at least one green-sensitive silver halide emulsion layer, at least one red-sensitive silver halide emulsion layer, and a plurality of blue-sensitive silver halide emulsion layers having different sensitivities on a support/body. In the silver photographic light-sensitive material, one of the plurality of blue-sensitive silver halide emulsion layers is provided as the silver halide emulsion layer located on the farthest side from the support, and the blue-sensitive silver halide emulsion layer and the silver halide emulsion layer are the same. , between the blue-sensitive silver halide emulsion layer and the blue-sensitive silver halide emulsion layer with low photosensitivity, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive emulsion layer. A silver halide emulsion layer is provided, and furthermore, the blue-sensitive silver halide emulsion layer with low photosensitivity and/or a layer adjacent thereto contains fine-grain silver halide. Characteristics of silver halogenide photographic materials.