GB2138962A - Silver halide color photographic light-sensitive material - Google Patents

Abstract

Highly-sensitive silver halide color photographic material comprises a support having thereon a first blue-sensitive silver halide emulsion layer furthest from the support; a second blue-sensitive silver halide emulsion layer having a lower speed than the first blue-sensitive silver halide emulsion layer and between the first and second blue-sensitive layers at least one green-sensitive silver halide emulsion layer containing a colored magenta coupler and at least one red-sensitive silver halide emulsion layer, at least one of any of these emulsion layers containing monodispersed silver halide.

Description

SPECIFICATION Silver halide color photographic light-sensitive material The present invention relates to a silver halide color photographic light-sensitive material which is highly sensitive and capable of giving a high-quality image, and more particularly to a silver halide color photographic light-sensitive material which displays its excellent image sharpness, graininess and interimage effect as well as its high sensitivity.

As for silver halide color photographic light-sensitive materials (hereinater referred to as light-sensitive material), the development of a high-speed and excellent quality image-formable light-sensitive material has hitherto been demanded. Particularly, in recent years, as indoor photographing occasions under unfavorable dim-light-room conditions increase and as the light-sensitive material for use in the photographing tends toward being miniaturized in its format, the development of a higher speed and more excellent image sharpness, graininess and interimage effect-having light-sensitive material has become increasingly strongly demanded. However, it has until now been very difficult to satisfy concurrently both improvements on the sensitivity and on the image quality.

For the improvement of light-sensitive materials on the sensitivity, etc., thereof, for example, the following technique is known: In a light-sensitive material comprising a support having thereon red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers (hereinafter called merely "emulsion layer") in the described order, it is known that, with respect to part of or all of the light-sensitive emulsion layers, substantially the same color-forming nondiffusible coupler-containing high-speed silver halide emulsion layer (hereinafter called "high-speed emulsion layer") and low-speed silver halide emulsion layer (hereinafter called "low-speed emulsion layer") are used whose emulsions have the same color-sensitivity and constitute a separately superposedly coated construction.However, this construction has such problems that, when the light-sensitive material is exposed to light, the light to be received by the emulsion layer located closer to the support is absorbed by the emulsion layer located further from the support, and besides, during the development of the light-sensitive material the developing agent takes time to be diffused to reach the emulsion layer closer to the support. That is, in such the construction, because of the loss of exposure light and the delay in development, it is difficult to accomplish increasing the sensitivity of the green-sensitive and red-sensitive emulsion layers which are in lower positions in the construction.

On the other hand, a technique for changing the coating order of such emulsion layers constituting the construction is known, as described in, for example, U.S. Patent No. 3,663,228 which, as shown in Figure 1c of the drawings attached thereto, discloses (a) coating in order from a support, on the side closer to the support, red-sensitive, green-sensitive and blue-sensitive low-speed emulsion layers, and (b) coating in order from the support side, on the side further from the support, red-sensitive, green-sensitive and blue-sensitive high-speed emulsion layers.This technique, although it enables the accomplishment of a higher speed of light-sensitive materials than the speed obtained in the foregoing regular-order coating construction-having light-sensitive materials, was not of the intention of the inventor to improve the sensitivity, as apparentfrom the use of an ND (Neutral Density) filter between the foregoing unit of high-speed emulsion layers and the unit of low-speed emulsion layers.

On the other hand, U.S. Patent No. 3,658,536, as shown in Figure 5 of the drawings attached thereto, discloses a technique which is such that the green-sensitive emulsion layer that largely affects the luminosity is positioned toward the surface side furthest from the support to thereby solve the exposure light-loss problem of the layer, but makes no mention about any technicques to increase the speed of the blue-sensitive layer, and besides, the sharpness, graininess and interimage effect improvements disclosed in the publication cannot be considered sufficient.

Aside from the above, for changing the construction, those techniques as described in Japanese Patent Publication Open to Public Inspection (hereinafter referred to as Japanese Patent O.P.I. Publication) Nos.

49027/1976 and 97424/1978; and U. S. Patent No. 4,129,446 are known. The techniques described in these publications, however, although capable of providing higher speed than the speed of light-sensitive materials having the foregoing regular-order coating construction, provide neither sufficient speed-having green-sensitive and red-sensitive emulsion layers nor sufficient improvements on the image quality such as graininess, sharpness, and the like.

It is therefore a first object of the present invention to provide a light-sensitive material having blue-sensitive, green-sensitive and red-sensitive emulsion layers, all the emulsion layers being equally high-speed emulsion layers.

It is a second object of the present invention to provide a light-sensitive material which displays its excellent sharpness, graininess and interimage effect as well as the high speed.

Other objects of the present invention will become apparent from the following descriptions in the present specification.

The present invention, which accomplishes the above objects, is such that, in a light-sensitive material comprising a support having thereon at least one green-sensitive emulsion layer, at least one red-sensitive emulsion layer, and a plurality of blue-sensitive emulsion layers different in the speed, the light-sensitive material wherein the plurality of blue-sensitive emulsion layers comprise one higher-speed blue-sensitive emulsion layer provided on the side furthest from the support and one lower-speed blue-sensitive emulsion layer, the said higher-speed and lower-speed blue-sensitive emulsion layers being provided with said at least one green-sensitive emulsion layer and said at least one red-sensitive emulsion layer therebetween, and further, at least one emulsion layer of the group consisting of said two blue-sensitive emulsion layers and said green-sensitive and red-sensitive emulsion layers put in between said blue-sensitive emulsion layers contains monodispersed silver halide grains, and at least one layer of said green-sensitive emulsion layers put in between said two blue-sensitive emulsion layers contains a magenta coupler.

The preferred embodiments of the present invention are such that: (1 ) the layer containing monodispersed silver halide grains comprises at least the high-speed blue-sensitive emulsion layer and/or high-speed green-sensitive emulsion layer of the present invention, (2) it is more desirable that all the light-sensitive emulsion layers constituting the light-sensitive material of the present invention contain monodispersed silver halide grains (3) further, the monodispersed silver halide grains are of the core-shell type (including the double core-shell type), and (4) the layer construction of the light-sensitive material of the present invention has red-sensitive, green-sensitive, and blue-sensitive low-speed emulsion layers in the described order from the support and further on these emulsion layers red-sensitive, green-sensitive, and blue-sensitive high-speed emulsion layers in the described order.

The present invention will be illustrated in detail below: In the light-sensitive material of the present invention, the difference in the speed between the foregoing high-speed emulsion layers and the low-speed emulsion layers is from 0.2 to 1.0 logE (E: exposure), and preferably from 0.3 to 0.6 logE, taking into accound the graininess and gradation thereof. And in the present invention, if medium-speed emulsion layers are to be provided, the difference in the speed between the medium-speed emulsion layers and the high-speed emulsion layers is from 0.1 to 0.5 logE, and the difference in the speed between the medium-speed emulsion layers and the low-speed emulsion layers is from 0.1 to 0.5 logE.

Further, it is desirable that the foregoing high-speed emulsion layer and low-speed emulsion layer have a substantially same spectral sensitivity, and after being color-developed, the above two emulsions contain a substantially equal hue-having color dye-formable photographic nondiffusible coupler.

At least one layer of each of the red-sensitive emulsion layers and the green-sensitive emulsion layers (hereinafter referred to as the red-sensitive emulsion layer of the present invention, and the green-sensitive emulsion layer of the present invention, respectively) is provided in between the low-speed emulsion layer and the high-speed emulsion layer of the blue-sensitive emulsion layers of the present invention, and in this instance, the green-sensitive emulsion layer of the present invention is desirable to be located further than the red-sensitive emulsion layer of the present invention from the support.Such the construction enables the green-sensitive emulsion layer that affects largely the luminosityto reduce the influence of light scattering by the silver halide particles contained in the layer positioned thereabove, and also enables to expect to some extent the cut of blue light by the magenta coupler contained in the green-sensitive emulsion layer positioned between the high-speed and low-speed blue-sensitive emulsion layers of the present invention, so that the construction is suitable for the improvement on the resulting image sharpness.

Each of the green-sensitive emulsion layer and red-sensitive emulsion layer of the present invention may be coated in the form of not less than two separate layers, and each of the blue-sensitive high-speed and low-speed emulsion layers of the present invention may also be coated in the form of not less than two separate layers. The thus coated separate emulsion layers of the same spectral sensitivity need not necessarily be adjacent to each other. And the separate emulsion layers of the same spectral sensitivity thus coated may be different in the speed from each other.That is, when at least one of the high-speed blue-sensitive emulsion layer of the present invention and the green-sensitive and red-sensitive emulsion layers of the present invention is coated in the form of not less than two separate layers, the layers may be separated as, e.g., high-speed layer and medium-speed layer.

On the side closer to the support than the low-speed blue-sensitive emulsion layer of the present invention there may be provided, for example, a low-speed red-sensitive emulsion layer and a low-speed green-sensitive emulsion layer. In this instance, the red-sensitive and green-sensitive emulsion layers of the present invention are desirable to be high-speed layers. In the case of providing the foregoing low-speed red-sensitive and green-sensitive emulsion layers, the green-sensitive emulsion layer should be provided in a position further from the support than the red-sensitive emulsion layer. The low-speed red-sensitive and green-sensitive emulsion layers each may be coated in the form of not less than two separate layers, and in this instance, the separate layers of the same color sensitivity may be different in the speed from each other.

That is, when at least one of the low-speed red-sensitive and green-sensitive emulsion layers is coated in the form of not less than two separate layers, the layers may be separated as, e.g., medium-speed layer and low speed layer. These separated layers of the same spectral sensitivity need not be adjacent to each other.

In the light-sensitive material of the present invention, a nonlight-sensitive interlayer may be provided in each of the interfaces between these respective light-sensitive emulsion layers, and particularly desirable to be provided in between the layers different in the spectral sensitivity. Such non-light sensitive interlayers may contain a scavenger material.

An yellow filter, although not essential for the present invention, is allowed to be provided. The yellow filter, if necessary, is desirable to be provided immediate underneath the blue-sensitive high-speed and/or low-speed emulsion layer, and more preferably provided on the side closer to the support than the low-speed blue-sensitive emulsion layer.

Examples of the light-sensitive material layer construction of the light-sensitive material of the present invention are given below, but the present invention is not limited thereto. The construction component layers are enumerated below in order from the support side.

(1)The support, low-speed red-sensitive, green-sensitive and blue-sensitive emulsion layers, and high-seed red-sensitive, green sensitive and blue-sensitive emulsion layers.

(2) The above construction of (1), where in the above high-speed red-sensitive and high-speed green-sensitive emulsion layers are with a medium-speed green-sensitive emulsion layer therebetween.

(3) The construction of (1), wherein the high-speed red-sensitive and green-sensitive emulsion layers alone are in inverse positions by being interchanged.

(4) The construction of (1), wherein the low-speed green-sensitive emulsion layer is separated into two layers comprised of one low-speed and one medium-speed green-sensitive emulsion layers in the described order from the side closer to the support.

(5) The construction of (1), wherein the low-speed blue-sensitive emulsion layer and the high-speed red-sensitive emulsion layer are with a medium-speed red-sensitive and green-sensitive emulsion layers therebetween in the described order from the side closer to the support.

(6) The construction of (1), wherein the low-speed blue-sensitive emulsion layer and the high-speed red-sensitive emulsion layer are with a medium-speed red-sensitive, green-sensitive and blue sensitive emulsion layers therebetween in the described order from the side closer to the support.

(7) The construction of )1), wherein the high-speed red-sensitive, green-sensitive and blue-sensitive emulsion layers each is separated into two layers comprised of one medium-speed emulsion layer and one high-speed emulsion layer located in the described order from the side closer to the support.

(8) The construction of (1), wherein the high-speed red-sensitive and green-sensitive emulsion layers each is separated into two layers comprised of one medium-speed emulsion layer and one high-speed emulsion layer in the described order from the side closer to the support.

(9) The construction of (1), wherein the low-speed blue-sensitive emulsion layer and the high-speed red-sensitive emulsion layer are with a medium-speed blue-sensitive emulsion layer located therebetween.

(10) The construction of (1), wherein the low-speed red-sensitive and green-sensitive emulsion layers each is separated into two layers comprised of one low-speed emulsion layer and one medium-speed emulsion layer in the described order from the side closer to the support.

(11)The construction of (1), wherein the low-speed red-sensitive, green-sensitive and blue-sensitive emulsion layers each is separated into two layers comprised of one low-speed emulsion layer and one medium-speed emulsion layer in the described order from the side closer to the support.

(12) The construction of (1), wherein the low-speed red-sensitive emulsion layer is separated into two separate layers comprised of one low-speed red-sensitive emulsion layer and one medium-speed red-sensitive emulsion layer in the escribed order from the side closer to the support.

The above are the examples of the light-sensitive emulsion layer construction of the light-sensitive material of the present invention, but it goes without saying that the light-sensitive material of the present invention can have other construction component layers such as nonlight-sensitive interlayers, a protective layer, a subbing layer, an antihalation layer, and the like, in addition to the above emulsion layers.

The light-sensitive silver halide grain size used in the light-sensitive emulsion layers of the present invention is not specifically limited, but, for example, for the high-speed emulsion layers, in order to reduce the deterioration in the sharpness of the emulsion layers located thereunderneath, it is desirable to avoid the presence of large light scattering-producing particles and to use particles having a mean grain size of from 0.7 to 2.5cm. And it is desirable to use grains of mean grain size of from 0.5 to 1 .5,a for these medium-speed emulsion layers, and from 0.2 to 1.0#forthese low-speed emulsion layers.

The light-sensitive material of the present invention, although there is no need of containing a scavenger material for inactivating the oxidized product of a developing agent, may be allowed to contain in the nonlight-sensitive interlayers and other photographic component layers thereof. The scavenger material, if capable of reacting with the oxidized product of a developing agent to thereby inactivate the oxidized product, can be of any type. Publications describing such scavengers include, e.g., U.S. Patent Nos.

2,336,327,2,360,290, 2,403,721,2,701,197, 2,710,801,2,728,659, 3,718,464, and the like. Among the scavengers described in the above publications, particularly, those colorless may be suitably used.

For the silver halide usable in the present invention, silver iodobromide and silver bromide are preferred in respect of their high sensitivity, but the use of silver chlorobromide and silver chloroiodobromide, etc., may be allowed. The effect of the present invention can be obtained by incorporating not less than 50% by weight of the silver halide of a monodispersed silver halide emulsion into at least one of the emulsion layers from the low-speed blue-sensitive emulsion to the high-speed blue-sensitive emulsion layers, but it is desirable that all the emulsion layers of the present invention contain a monodispersed silver halide emulsion in a silver halide quantity of not less than 50% by weight.

As the monodispersed silver halide (grains) in the present invention those having a value of not more than 0.20 is desirable, the vaue being obtainable when dividing the standard deviation S of the silver halide grain's granularity distribution as defined in the following formula by mean grain size?:

0.02, and T more preferably S #0.15 r The mean grain size? used herein, in the case of globular grains, is the diameter thereof, and, in the case of cubic or nonglobular grains, is an average value of the diameters of circular images obtained when converting the projection images thereof into equivalent areal circular images, and each individual grain diameter is the ri, and when the number of the ris is ni, thesis defined by the formula:: X ni ri C ni Each silver halide grain of the present invention is most desirable to be of the core-shell type, and in this instance, it is desirable that the respective silver halide particles be constituted so that the silver iodide content of the silver hadide on the surface layer (in the case of the double core-shell type having two or more shells, the surface layer means the outermost shell: the same shall apply hereinafter) does not change substantially. The terms "does not change substantially" means that even when the mean grain size changes, the silver iodide content of the surface layer does not change substantially, and to be concrete, the difference in the silver halide content between the surface layers of grains is desirable not to exceed 0.5 mole %.

By doing this, the foregoing objects of the present invention can be effectively achieved, development activeness can be uniformly effected, and the chemical ripening of the emulsions can be stabilized. When using core-shell-type silver halide grains in the present invention, the surface layer is desirable to account for not more than 50%, and particularly not more than 20% of the whole grains' weight. The surface layer is desirable to comprise silver iodobromide containing not more than 3 mole % of silver halide or silver bromide. And the core, i.e., the portion excluding the surface layer, and hereinafter referred to as the same, of the core-shell-type silver halide is desirable to contain from 0 to 15 mole % of iodide.The monodispersed silver halide of the present invention is desirable to be such a crystal-habit-having crystal as hexahedral, octahedral ortetradecahedral crystal.

A Zapcolored magenta coupler to be contained in the green-sensitive emulsion layer of the present invention can be of any type, if it is a compound capable of reacting with the oxidized product of a developing agent to thereby release an yellow component. The colored magenta coupler, in addition to being contained in the green-sensitive emulsion layer of the present invention, is allowed to be contained in other photographic component layers including, e.g., a non-light-sensitive interlayer. Where the green-sensitive emulsion layer of the present invention is coated in the form of not less than two layers, at least one of the layers may contain the colored magenta coupler.

The adding quantity of the magenta coupler, although not specifically limited, may be from 0.05 to 20 mole %, and more preferably from 0.5 to 5 mole % to the silver halide in the emulsion layer to which is added the same. The transmission density, although not specifically limited, either, is from 0.02 to 0.5, and more preferably from 0.05 to 0.25.

The following are preferably usable colored magenta couplers in the present invention: For example, as described in Japanese Patent O.P.I. Publication No. 131448/1974 there are those compounds having the following Formula (I)

wherein R1 is an aryl radical or a heterocyclic radical; R2 is a phenyl radical having a halogen atom, an alkoxy radical or an aryloxy radical in the ortho position to the imino radical that is linked in the third position with a pyrazolone ring; and R3 is a phenyl radical having a hydroxy radical in the para position to the azo radical. In addition, the compound has a hydrophobic nondiffusible radical in the molecule thereof.

The preferred examples of the compound having Formula (I) are shown in from the upper right of Page 3 to the upper left of Page 9 of the foregoing patent publication, and also in the present invention any of these exemplified compounds is usable, such as, for example, 1 -(2,4,6-trichlorophenyl)-3-(2-chloro-5-n tetradecyloxyphenylazo)-2-pyrazoline-5-one, and the like.

Japanese Patent O.P.I. Publication No. 123625/1974 discloses those compounds having the following Formula (all):

wherein R is a phenyl radical having a substituent; R4 and R5 each is a hydrogen atom, a halogen atom, a hydroxy radical, an alkyl radical, an alkoxy radical or an acylamino radical, provided that either one of the R4 and R5 is a hydroxyl radical and both R4 and R5 are not allowed to be hydroxyl radical concurrently; R6 is a hydrogen atom, a halogen atom, an alkyl radical, a nitro radical or an acylamino radical; and R7 is a hydrogen atom, a halogen atom or a monovalent organic radical.

The preferred examples of the compound having Formula (II) are described in from the upper left of Page 3 to the lower left of Page 4 of the above publication. Also in the present invention any of these exemplified compounds are applicable, which include, for example,

Japanese Patent O.P.I.Publication No. 102723/1977 discloses 4-phenylazo-2-pyrazoline-5-one compounds which are favorably usable, the compound having in the para position to the azo radical thereof a substitutent alkoxy radical having the following Formula (III): -O-A#k-X-R8 wherein ACk is a straight-chain or branched-chain alkylene radical which is allowed to carry an aryl radical substituent; X is a bonding radical; and R8 is an aryl radical or substituted aryl radical.

Further, as described in Page 1 of the above publication, there are those compounds having the following Formula (IV)

wherein Atk, X and R8 are as defined in Formula (III); Rg is a hydrogen atom, a halogen atom or an electron-donative substituent; and Cp is a 2-pyrazoline-5-one residue linked in the fourth position.

In Formula (IV), the Cp residue is desirable to be a compound having the following Formula (V)

wherein Rlo and R11 each is a known-type substituent in the 2-pyrazoline-5-one coupler used in silver halide color photographic materials.

Further, the compound having Formula (V) is more desirable to be a compound wherein the R10 is an alkyl radical, a substituted alkyl radical, an aryl radical, a substituted aryl radical or a 5- or 6-member heterocyclic radical; and R11 is an alkyl radical, an acylamino radical or an anilino radical which each may have a substituent.

And those 4-phenylazo-2-pyrazoline-5-one compounds having the following Formula (VI), wherein the 4-phenylazo radical has a substituted alkoxy radical in the para position tothe azo radical thereof, may also be favorably used.

wherein R8, X and ACk are as defined in Formula (III); Y is a phenyl radical or a substituted phenyl radical; Z is a hydrogen atom, an alkyl radical, an alkoxy radical, a halogen atom, a nitro radical, a cyano radical or a hydroxyl radical; W is a hydrogen atom, an alkyl radical, an alkoxy radical, an alkylthio radical, an alkyl-sulfonyl radical, an aryl radical, an aryloxy radical, an aryl-sulfonyl radical, an aryloxysulfonyl radial, an amino radical, a substituted amino radical, a carbamoyl radical, a sulfamoyl radial, an N-substituted carbamoyl radical or an N-substituted sulfamoyl radical.

Further, those compounds having Formulas (III) to (VI), wherein the bonding radical X is O, S, CO, SOP, SO2O, CONQ, NOCO, SO2NQ or NQSO2 wherein Q is a hydrogen atom, an alkyl radical or an aryl radical, may be further favorably used.

Preferred examples of the compounds having Formulas (III) to (VI) are described in from the lower left of Page 5 to the upper right of Page 7 of the above publication, and any of these exemplified compounds may be used also in the present invention.

Those compounds having the following Formula (VII), which are described in Japanese Patent O.P.I.

Publication No. 42121/1977, will be subsequently given.

wherein R12, R13 and R14 may be either the same as or different from one another and each is a hydrogen atom, a halogen atom, a nitro radical, a cyano radical, an alkyl radical, an alkoxy radical, an alkoxycarbonyl radical or a carboxyamido radical; R15 is a hydrogen atom, an alkoxy radical or an aryloxy radical; R16 is a carboxyamido radical, a sulfonamido radical, an alkoxycarboxyamido radical, an aryloxycarboxyamido radical, an aryloxycarboxyamido radical, an imido radical, a carbamoyl radical, a sulfamoyl radical, an alkoxycarbonyl radical, or an aryloxycarbonyl radical; R17 is a hydrogen atom or an alkyl radical;R18 is an alkyl radical, an alkoxy radical, an aryloxy radical, an alkylamino radical or an arylamino radical, the alkyl radicals represented by the R17 and B18 being allowed to form a cyclic structure

(4- or S-member ring); and R19 is a hydrogen atom, a hydroxyl radical, an alkyl radical or an alkoxy radical, provided that if the Rag is a hydroxyl radical, the radical is substituted in the metha position to the azo radical.

In addition, the coupler compound has at least one hydrophobic and nondiffusible radical in the molecule thereof.

Preferred examples of the compound having Formula (VII) are given in the upper right of Page 6 to the upper left of Page 10 of the above publication. Any of the exemplified compounds may be used also in the present invention.

Colored magenta couplers suitably usable in the present invention include, in addition to the above, those as described in, e.g., U. S. Patent Nos. 3,519,429 and 2,801,171; and Japanes Patent Examined Publication No. 27930/1973, and particularly the compounds disclosed as having Formulae (I), (11), (III) and (IV) in the third and fifth columns of the specification of the foregoing U.S. Patent No.3,519,429 are most suitably usable.

Among these compounds as described in the abovementioned patent publications or specifications the particularly preferred examples are as follows;

For the red-sensitive emulsion layer of the present invention ordinary colored cyan couplers may be used.

If the red-sensitive emulsion layer of the present invention is coated in the form of not less than two separate layers, the incorporation of such a colored cyan coupler into the upper layer (further from the support) is desirable in connection with the scavenger action.

As the colored cyan coupler, those as described in Japanese Patent Examined Publication No. 32461/1 980 and British Patent No. 1,084,480, and the like, may be used.

The particularly preferred cyan couplers are the following compounds:

The respective light-sensitive layers constituting the light-sensitive material of the present invention may contain their corresponding color-forming couplers.

As the yellow color-forming coupler there may be used open-chain ketomethylene-type couplers of the prior art. Of these couplers, benzoylacetanilide-type and pivaloylacetanilide-type compounds are advantageously usable. Examples of such yellow color-forming couplers are as described in Japanese Patent O.P.I.

Publication Nos. 26133/1972,29432/1973, 87650/1975, 17438/1976 and 102636/1976; Japanese Patent Examined Publication No. 19956/1970; U.S. Patent Nos. 2,875,057,3,408,194 and 3,519,429; and Japanese Patent Examined Publication Nos. 33410/1976, 10783/1976 and 19031/1971; and the like.

The particularly preferred couplers are as follows:

As the magenta color-forming coupler, pyrazolone-type compounds, indazolone-type compounds, cyanoacetyl compounds, pyrazolotriazole compounds, and the like, may be used, and particularly, pyrazolone-type compounds are advantageously usable.

Examples of the magenta color-forming coupler applicable to the present invention are as described in Japanese Patent O.P.I. Publication No. 111631/1974, Japanese Patent Examined Publication No.27930/1973, Japanese Patent O.P.I. Publication No.29236/1981, U. S. Patent Nos. 2,600,788,3,062,653, 3,408,194 and 3,519,429,Japanese Patent O.P.I. Publication No.94752/1982, and Research Disclosure No. 12443 (RD-12443), and the like.

The particularly preferred couplers are as follows:

As the cyan color-forming coupler, phenyl-type compounds, naphthol-type compounds, and the like, may be used, examples of which are as described in U.S. Patent Nos. 2,423,730,2,474,293 and 2,895,826; and Japanese Patent O.P.I. Publication No. 117422/1975; and the like.

The particularly preferred couplers are as follows:

The above couplers may be contained in combination of not less than two thereof in one same layer, and may also be contained alone in not less than two different layers. The incorporation of these couplers into emulsion layers can be made by methods of the prior art. Also in the present invention, the above couplers may be incorporated in accordance with prior-art methods.

To the emulsion layers of the present invention may be added nondiffusible compounds (DIR compounds) capable of releasing diffusible development inhibitor compounds by the reaction thereof with the oxidized product of a developing agent. As the DIR compound, there may be advantageously used those compounds as described in Japanese Patent O.P.I. Publication No.82424/1977, U. S. Patent Nos. 2,327,554,3,227,554 and 3,615,506, Japanese Patent Examined Publication No. 16141/1976, Japanese Patent O.P.I. Publication Nos.

145135/1979 and 151944/1982, and the like. The particularly preferred DIB compounds are as follows:

The photographic component layers of the present invention such as nonlight-sensitive interlayers may contain such photographic additives as antistain agent and the like. As the antistain agent those compounds as described in Japanese Patent O.P.I. Publication No. 2128/1971, U. S. Patent No. 2,728,659, and the like, may be advantageously used, and particularly the following compounds are desirable:

The silver halide emulsion used for the emulsion layers of the present invention can be chemically sensitized by arbitrary methods which have been performed conventionally.That is, the chemical sensitization can be carried out by using alone or in combination those sensitizers including active gelain; such noble-metallic sensitizers as water-soluble gold salts, water-soluble platinum salts, water-soluble palladium salts, water-soluble rhodium salts, water-soluble iridium salts, etc.; sulfur sensitizers; selenium sensitizers; such reduction sensitizers as polyamines, stannous chloride, etc.; and the like. Further, the silver halide can be optically sensitized to desired wavelength regions by using alone or in combination (e.g., supersensitization) those optical sensitizers including, for example, such cyanine dyes as zeromethine dyes, monomethine dyes, dimethine dyes, trimethine dyes, etc., and merocyanine dyes.

The light-sensitive material of the present invention may contain in the light-sensitive layers and/or other layers (such as interlayers, subbing layer, filter layers, protective layer, image receiving layer, etc.) thereof various photographic additives by being selected according to purposes of these layers, the photographic additives including, for example, such stabilizers or antifoggants as azaindenes, triazoles, tetrazoles, imidazolium salts, tetrazolium salts, polyhydroxy compounds, etc.; such hardening agents as those compounds of the aldehyde type, aziridine type, isooxazole type, vinylsulfone type, acryloyl type, carbodiimide type, maleimide type, methane sulfonate type, triazine type, etc.; such development accelerators as benzyl alcohol, polyoxyethylene-type compounds, etc.; such image stabilizers as chroman-type, bisphenol-type, and phosphite-type compounds; such lubricants as wax, glycerides of higher fatty acids, higher alcohol esters of higher fatty acids, etc.; and the like. Further, as the surface active agent for use as the coating aid, emulsifier, agent for improving the permeability of processing liquids into the light-sensitive material, defoaming agent, or material for the control of various physical characteristics of the light-sensitive material, there may be used anionic, cationic, nonionic or amphoteric surface active agents.

As the mordant, N-guanylhydrazone-type compounds, quaternary onium salt compounds, etc., are useful.

As the antistatic agent, alkali salts of the reaction products of p-aminobenzenesulfonic acid with diacetyl cellulose, with styrene-perfluoroalkyl-sodium maleate copolymer, and with styrene-maleic anhydride copolymer are useful. As the anti-color-turbidity agent, vinyl-pyrolidone monomer-containing polymers, etc., may be used. As the matting agent, methyl polymethacrylates, polystyrenes, alkali-soluble polymers, etc., may be used. Further, colloidal silicon dioxide may also be used. As the latex for improving the physical properties of the layers, copolymers of acrylic acid esters or vinyl esters with other ethylene radical-having monomers may be used. As the gelatin plasticizers, glycerol-type and glycol-type compounds are useful.

And as the viscosity-increasing agent, styrene-sodium maleate copolymer, alkyl-vinyl ether-maleic acid copolymer, etc., are useful.

The light-sensitive material of the present invention is produced by coating on a support silver halide emulsion layers and other component layers containing necessary above-mentioned various photographic additives. Advantageously usable materials as the support include, e.g., baryta paper, polyethylene-coated paper, polypropylene synthetic paper, glass plates, cellulose acetate, cellulose nitrate, polyvinyl acetal, polypropylene, polyester film such as, e.g., polyethylene terephthalate, polystyrene, and the like. These materials may be arbitrarily selected to be used as the support according to purposes for which the light-sensitive material is used.

The support of any of such materials is subjected to necessary subbing treatment.

The light-sensitive material of the present invention, after being exposed to light, may be processed by a known method, i.e., color-developed by a usually used color developing method. In the reversal process, the light-sensitive material is first developed in a developer for black-and-white negative development use, and then either exposed to white light or processed in a bath containing a fogging agent, and then further color-developed in an alkaline developer solution containing a color developing agent.No particular restrictions are put on the development, so that any methods can be applied, typical examples of which include, for example, a process that the light-sensitive material is color-developed, then bleach-fixed, and then further at need washed and stabilized; and another process that the light-sensitive material, after being color-developed, is subjected to separate fix and bleach processings, and, if necessary, washed and then stabilized. Processings for light-sensitive materials with use of such an amplifier as hydrogen peroxide, cobalt complex salts, or the like, are also known, and such processes may also be applied to the processing of the light-sensitive material of the present invention.There are cases where these processings take place at a high temperature for the purpose of effecting them rapidly or take place at room temperature or, in a special case, at a temperature lower than room temperature. In effecting a high-temperature rapid processing, a prehardening treatment may also be used. And there also are cases where such auxiliary baths as various neutralizing baths may become necessary according to the kind of the processing chemicals used, so that these auxiliary baths may be selected to be used according to the necessity.

Useful color developing agents are primary phenylenediamines and derivatives thereof, typical examples of which include 4-amino-N,N-diethylaniline, 3-methyl-4-amino-N,N-diethylaniline, -amino-N-ethyl-N- p -hydroxyethyl-N-hydroxyethylaniline, ine,3-methyl- 4 -am ino-N-ethyl-N- 3 -methanesulfonamidoethylaniline, 3-methyl- 4-amino-N-ethyl-N- p -methoxyethylaniline, 3- p -methanesulfonamidoethyl- 4 -amino-N,N-diethylaniline, 3-methoxy- 4-amino-N-ethyl-N- p -hydroxyethylaniline, 3-methoxy- 4 -amino-N-ethyl-N- p -methoxyethylaniline, 3-acetamido- 4 -amino-N,N-diethylaniline, 4 -amino-N,N-dimethylaniline, N-thyl-N- p - [ p-(p-methoxyethoxy)-ethoxy ] ethyl- 3 -methyl-4-aminoaniline, N-ethyl-N- p -(p-methoxy)-ethyl-3-methyl- 4 -aminoaniline, and salts of these compounds such as, e.g., sulfates, hydrochlorides, sulfites, p-toluenesulfonates, and the like.

The present invention enables to not only accomplish the foregoing first and second objects but also, without providing any yellow filters, obtain similar effects to the case where yellow filters are provided, so that the present invention can provide a light-sensitive material which, despite its high sensitivity, is capable of resptraining the possible occurrence of fog, has less color turbidity, and is excellent in the heat resistance.

Examples The present invention will be illustrated with reference to examples, but the present invention is not limited thereto.

Firstly, the procedures for preparing the emulsions to be used for the following examples are given below: Preparation ofpolydisperse emulsion: An aqueous silver nitrate solution and an aqueous alkaline halide solution were let spontaneously fall into a a reaction pot in advance containing an aqueous gelatin solution and an excessive quantity of a halide, and then to this were added an aqueous Demol (a product of Kawo Atlas Co.) solution and an aqueous magnesium sulfate solution to thereby deposit a precipitate, which was then desaited, and to this was added gelatin, whereby an emulsion having PAg 7.88 and pH6.0 was obtained.The resulting emulsion was chemically ripened with use of sodium thiosulfate, chloroauric acid, and ammonium rhodanate, and then to this were added 4-hydroxy-6-methyl-1 ,3,3a,7-tetrazaindene and 6-nitrobenzimidazole, and further gelatin, thereby obtaining a polydispersed silver iodobromide emulsion. In this procedure, the mole % of the silver iodide was varied by changing the alkaline halide composition, and the mean particle size and particle size distribution were varied by changing the adding periods of time of the silver nitrate solution and alkaline halide solution.

Preparation of monodispersed emulsion: The seed grains of a silver halide and an aqueous gelatin solution in advance put in a reaction pot, with controlling the PAg and pH thereof, were added an ammoniacal silver nitrate solution and aqueous potassium iodide and potassium bromide solutions in proportional quantities to the increasing surface area of the growing grains. After that, to the emulsion were added an aqueous Demol (Kawo Atlas Co.) solution and an aqueous magnesium sulfate solution to thereby deposit a precipitate, which was then desalted, and to this was added gelatin to thereby obtain an emulsion having PAg 7.8 and pH 6.0.To the emulsion were further added sodium thiosulfate, chloroauric acid and ammonium rhodanate thereby to be chemically ripened, and to this were added 4-hydroxy-6-methyl-1 ,3,3a,7-tetrazaindene and 6-nitrobenzimidazole and further gelatin to thereby obtain a monodispersed silver iodobromide emulsion. In this procedure, the mole % of the silver iodide by changing the ratio between the quantities of the potassium iodide and of the potassium bromide, the particle size was varied by changing the adding quantities of the ammoniacal silver nitrate and the potassium halides, and the crystal habit of the silver halide particles was varied by changing the value of PAg during the reaction.

In addition, a core/shell emulsion was prepared in the manner as described in the foregoing Japanese Patent O.P.I. Publication No. 48521/1979.

Example I The following layers were formed by coating in the described order on a transparent support comprised of a a subbed cellulose triacetate film with its back antihalation-layer-coated (the antihalation layer containing 0.409 of black colloidal silver and 3.0g of gelatin), whereby Sample 1 was prepared. In addition, in all the following examples, all adding quantities to the light-sensitive material are ones per m2 with the exception that those of the silver halide emulsion and of the colloidal silver are given in silver equivalent.

Sample 11.... Comparative Example Layer 1...A low-speed red-sensitive emulsion layer containing a low-speed red-sensitive silver iodobromide emulsion, 2.2g of gelatin, and 0.89 of tricresyl phosphate (TCP) used to dissolve 1.0g of 1 -hydrnxy-4-(#methoxyethylaminocarbonylmethoxy)-N- [ #(2A-di-t-amylphenoxy)butyl ] -2-naphthoamide (hereinafter referred to as cyan coupler), 0.075g of disodium 1 -hydroxy-4- [ 4-( 1 -hydroxy-3-acetamido-3,6-di-sulfo -2-naphtylazo)phenoxy ] -N- [ 3-(2,4-di4-amyl phenoxy) butyl-2-naphthoamide (hereinafter referred to as colored cyan coupler) and 0.01g of 1-hydroxy-2- [ (2,4-di4-amylphenoxy) -n-butyl] naphthoamide, 0.07g of 2-bromo-4-(2,2,3,3,4,4,S,S,6,6,7,7,8,8,9,9-hexadecafluorononanoyl-amino)-7-nitro-2-(1 -phenyl-5- tetrazolylthio)-1-indanone (hereinafter referred to as DIR compound).

Layer 2...An interlayer containing 0.079 of 2,5-di-t-octylhydroquinone (hereinafter referred to as antistain agent) dissolved into 0,04g of n-dibutyl phthalate (hereinafter referred to as DBP) and 0.89 of gelatin.

Layer 3...A low-speed green-sensitive emulsion layer containing 1.409 of low-speed green-sensitive silver iodobromide emulsion, 2.29 of gelatin and 0.959 of TCP into which were dissolved 0.8g of 1-(2,4,6-trichlorophenyl)-3 -[3-(2,4-di-t-amylphenoxyacetamido) benzamido ] -S -pyrazolone (hereinafter referred to as magenta coupler), 0.15g of 1 -(2,4,6-trichlorophenyl)- 4-(1 -naphthylazo)-3-(2-chloro5-octadecenylsuccinimidoaniline)- 5 -pyrazolone (hereinafter referred to as colored magenta coupler) and 0.012g of DIR compound.

Layer 4...The same as Layer 2.

Layer 5...A high-speed red-sensitive emulsion layer containing 1.5g of high-speed red-sensitive silver iodobromide emulsion, 1 .2g of gelatin and 0.30g of TCP into which were dissolved 0.269 of cyan coupler and 0.039 of colored cyan coupler.

Layer 6...The same as Layer 2 Layer 7...A high-speed green-sensitive emulsion layer containing 1.6g of high-speed green-sensitive silver iodobromide emulsion, 1 .9g of gelatin and 0.259 of TCP into which were dissolved 0.209 of magenta coupler ad 0.0499 of colored magenta coupler.

Layer 8...An yellow filter layer containing 0.15g of yellow colloidal silver, 0.29 of antistain agent dissolved into 0.119 of DBP, and 1.5g of gelatin.

Layer 9...A low-speed blue-sensitive emulsion layer containing 0.5g of low-speed blue-sensitive silver iodombromide emulsion, 1 .9g of gelain and 0.6g of TCP into which were dissolved 1.59 of #pivaloyl-u-( 1 -benzyl-2-phenyl-3,S-dioxoimidazolidine-4-yl )-2'-chloro-5'- [ a-dodecxyloxycarbonyl) ethoxycarbonyl ] acetanilide (hereinafter referred to as yellow coupler).

Layer 10...A high-speed blue-sensitive emulsion layer containing 0.89 of high-speed blue-sensitive silver iodobromide emulsion, 1.5g of gelatin and 0.65g of TCP into which were dissolved 1.309 of yellow coupler.

Layer 11...A protective layer containing 2.39 of gelatin.

Samples 2 to 10 were prepared as follows in the same manner as in the above Sample 1. In addition, in the following, the expressions "the foregoing Layer 1, the foregoing Layer 2 the foregoing Layer 11" mean the respective Layer Nos. in Sample 1.

[Sample 2 ] .... Comparative Example Layer 1...The same as the foregoing Layer 1.

Layer 2...The same as the foregoing Layer 5.

Layer 3...The same as the foregoing Layer 4.

Layer 4...The same as the foregoing Layer 9.

Layer S...The same as the foregoing Layer 4.

Layer 6...The same as the foregoing Layer 3.

Layer 7...The same as the foregoing Layer 7.

Layer 8...The same as the foregoing Layer 8.

Layer 9...The same as the foregoing Layer 10.

Layer 10...The same as the foregoing Layer 11.

[ Sample 3 ] .... Comparative Example Layers 1 to 4...The same as the foregoing Layers 1 to 4 of Sample 1.

Layer 5...The same as the foregoing Layer 9.

Layer 6...The same as the foregoing Layer 4.

Layer 7...The same as the foregoing Layer 5.

Layer 8...The same as the foregoing Layer 4.

Layer 9...The same as the foregoing Layer 7.

Layer 10...The same as the foregoing Layer 4.

Layer 11...The same as the foregoing Layer 10.

Layer 12...The same as the foregoing Layer 11.

[ Sample 4 ] .... Comparative Example Sample 4 was prepared in the same manner as in Sample 3 with the exception that from the emulsion layer, the Layer 9 of Sample 3, was removed the colored magenta coupler, and the polydispersed silver halide grains were replaced by monodispersed silver iodobromide grains (distribution 12%, mean grain size 1.4A)- [ Sample 57.,.,Example of the invention Sample 5 was prepared in the same manner as in Sample 3 with the exception that the same monodispersed silver halide grains as in Sample 4 were used in place of the silver halide particles of the emulsion layer as the Layer 9 of Sample 3.

[ Sample 61,,,Example of the invention Sample 6 was prepared in the same manner as in Sample 5 with the exception that 70% alone of the silver halide of the emulsion layer, the Layer 9 of Sample 5, was replaced by monodispersed silver halide grains.

[ Sample 77,,,,Example of the invention Sample 7 was prepared in the same manner as in Sample 5 with the exception that the positions of the Layer 7 and of the Layer 9 of Sample 5 were interchanged.

[ Sample 8 ] ....Example of the invention Sample 8 was prepared in the same manner as in Sample 5 with the exception that the positions of the Layer 1 and the Layer 3 of Sample 5 were interchanged.

[ Sample 9 ] ....Example of the invention Sample 9 was prepared in the same manner as in Sample 5 with the exception that the silver halide grains of all the emulsion layers of the Layer 7, Layer 9 and Layer 11 of Sample 5 were replaced by the same monodisperse silver halide particles as of the Layer 9 of Sample 4, and the silver halide particles of the Layer 5 was also replaced by monodisperse silver halide grains (distribution 10%, mean particle size 0.8u).

[Sample 101,,..Example of the invention Sample 10 was prepared in the same manner as in Sample 9 with the exception that the monodispersed silver halide emulsion of the Layer 7, Layer 9 and Layer 11 and the monodispersed silver halide emulsion of the Layer 5 of Sample 9 were all replaced by the core/shell-type silver halide emulsion.

Each of these prepared samples was subjected through an optical wedge to a neutral light exposure and separation exposures equivalent to the neutral light exposure, and then developed in the following processes to thereby obtain dye images. The obtained characteristics are as shown in the following table.

Processing Steps (at 38 C) Processing Period Color developing 3 min. & 15 sec.

Bleaching 6 min. & 30 sec.

Washing 3 min. & 15 sec.

Fixing 6 min. & 30 sec.

Washing 3 min. & 15 sec.

Stabilizing 1 min. & 0sec.

Drying The compositions of the processing liquids used in the respective processes are as follows: Color Developer: 4-amino-3-methyl-N-ethyl-N-(p-hydroxy-ethyl)-aniline sulfate 4.759 Anhydrous sodium sulfite 4.259 Hydroxylamine 1/2 sulfate 2.09 Anhydrous potassium carbonate 37.5g Sodium bromide 1.3g Trisodium nitrilotriacetate, monohydrated 2.59 Potassium hydroxide 1.0g Water to make 1 liter Bleaching Bath: Iron-ammonium ethylenediaminetetraacetate 1 00.0g Diammonium ethylenediaminetetraacetate 1 0.0g Ammonium bromide 150.0g Glacial acetic acid 10.0ml Water to make 1 liter, use aqueous ammonia to adjust the pH to 6.0 Fixing Bath:: Ammonium thiosulfate 1 75.0g Anhydrous sodium sulfite 8.6g Sodium metabisulfite 2.3g Water to make 1 liter, use acetic acid to adjust the pH to 6.0.

Stabilizer bath: Formalin (aqueous 37% solution) 1.5ml Koniducks (a product of Konishiroku Photo Ind. Co., Ltd.) 7.5my Water to make 1 liter.

Table 1 Sample No. 1 2 3 4 5 6 7 8 9 10 Relative speed 100 102 101 107 105 105 106 107 130 132 MTF 68 65 66 71 70 68 67 71 75 77 B RMS 68 69 65 63 57 58 56 56 55 54 IIE 0.01 0.06 0.08 0.09 0.09 0.09 0.09 0.09 0.10 0.10 Relative speed 100 105 118 121 167 159 158 166 176 187 MTF 40 47 40 44 54 51 52 52 54 57 G RMS 43 41 45 43 36 38 36 35 32 32 IIE 0.03 0.02 0.06 0.08 0.09 0.08 0.09 0.10 0.10 0.10 Relative speed 100 82 118 111 128 123 128 129 180 192 MTF 33 32 33 36 39 38 38 38 43 46 R RMS 48 47 48 48 44 44 43 44 42 40 IIE 0.03 0.02 0.09 0.10 0.10 0.10 0.10 0.10 0.10 0.10 In the table, B, G and R are the measured values relative to blue, green and red lights, respectively.

*1 The speed of each sample is given in the table in the relative speed to the speed of Sample 1 regarded as 100.

*2 Interimage effect (IIE) is given in terms of the degree of the increase in the A log E (E: exposure) speed, determined at a Dmin+0.3 density point of the dye image of each sample, obtained when subjected to the separation exposures (separate red, green and blue light exposures equivalent in total to the neutral exposure) as compared to that of the same sample, obtained when subjected to the neutral exposure (red-plus-green-plus-blue exposure).

*3 Detection of the improvement effect on the image sharpness was made by finding the MTF (Modulation Transfer Function) of each sample and then by comparison in the magnitude of the MTF in the spatial frequency of 30 lines/mm between the samples.

*4 RMS is given in the 1000x value of the standard deviation of the Dmin + 0.8 density of each sample, found when its dye image is scanned by the 25y-diameter circular scanning head of a microdensitometer.

As apparent from Table 1, increasing the sensitivity can be attained by the application of the layer construction of the present invention (as in Samples 3-10 compared to Samples 1 and 2). The individual effects of the monodispersed emulsion (Sample 4) alone and of the colored magenta coupler (Sample 3) alone are not noticeable, but when these are used in combination, particularly the green-sensitivity becomes largely increased, and the effect becomes markedly conspicuous when all the emulsion layers of the present invention are comprised of the monodispersed emulsion as in Sample 9, and further the effect becomes the largest when the core/shell-type monodispersed emulsion is applied as in Sample 10. Further, also in regard to the improvement on the graininess, the samples of the present invention shows far smaller RMS than that expected in the monodisperse emulsion alone-containing Sample 4 and the colored magenta coupler alone-containing Sample 3; that is, it is understood that the samples of the invention are much improved on the graininess. In addition, it has been found that the additional use of the monodispersed emulsion noticeably inreases the transmittance to the lower layer to thereby increase the image sharpnes, and this effect is conspicuous unexpectedly from the individual effect of the separate use. Furthermore, it is recognized that the interimage effect also is largely improved.

Claims (26)

1. A silver halide color photographic light-sensitive material which comprises a support having thereon 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 speeds, wherein a a first blue-sensitive silver halide emulsion layer is the furthest silver halide emulsion layer from said support; a second blue-sensitive silver halide emulsion layer has a lower speed than said first blue-sensitive silver halide emulsion layer, and at least one green-sensitive silver halide emulsion layer containing a colored magenta coupler, and at least one red-sensitive silver halide emulsion layer are provided between said first and second blue-sensitive silver halide emulsion layers; and at least one of the emulsion layers selected from said first and second blue-sensitive silver halide emulsion layers, said green-sensitive silver halide emulsion layer and said red-sensitive silver halide emulsion layer contains monodispersed silver halide.

2. Color photographic material as claimed in Claim 1, wherein the layer containing monodispersed silver halide grains is the first blue-sensitive emulsion layer or a high-speed green-sensitive emulsion layer.

3. Color photographic material as claimed in Claim 1, wherein all the said light-sensitive emulsion layers contain monodispersed silver halide grains.

4. Color photographic material as claimed in Claim 3, wherein all the emulsion layers contain a monodispersed silver halide emulsion in a silver halide quantity of not less than 50% by weight.

5. Color photographic material as claimed in any preceding Claim, wherein the monodispersed silver halide grains are of a core-shell type.

6. Color photographic material as claimed in Claim 5, wherein the surface layer comprises not more than 50% of the whole grains' weight.

7. Color photographic material as claimed in Claim 5 or 6, wherein the surface layer comprises silver I iodobromide containing not more than 3 mole % of silver iodide, or silver bromide, and the core of the core-shell-type silver halide contains from 0 to 15 mole % of silver iodide.

8. Color photographic material as claimed in Claim 5, wherein each of the silver halide grains is so constituted that the silver iodide content of the silver halide in the surface layer does not change substantially.

9. Color photographic material as claimed in any preceding Claim, wherein the layer construction of the light-sensitive material has, in the following order from the support, red-sensitive, green-sensitive, second blue-sensitive, red-sensitive, green-sensitive, and first blue-sensitive emulsion layers.

10. Color photographic material as claimed in Claim 9 wherein the difference in the speed between the first and second blue-sensitive emulsion layers is from 0.3 to 0.66 logE.

11. Color photographic material as claimed in Claim 9 or 10, wherein the first and second blue-sensitive emulsion layers have substantially the same spectral sensitivity, and, after being color-developed, contain a substantially equal hue-having color dyejormable photographic nondiffusible coupler.

12. Color photographic material as claimed in any preceding Claim, wherein the green-sensitive emulsion layer is located further from the support than the red-sensitive emulsion layer.

13. Color photographic material as claimed in any preceding Claim, wherein the light-sensitive silver halide grains used in the first blue-sensitive emulsion layer have a mean size from 0.7 to 2.5cm, and those used in the second blue sensitive emulsion layers have a mean size from 0.2 to 1.0W.

14. Color photographic material as claimed in any preceding Claim, wherein the monodispersed silver halide grains have a value of not more than 0.20, obtainable when dividing the standard deviation S of the silver halide grain's granularity distribution by mean grain size?, S and r having the meanings defined in the following formulae

wherein the mean grain size? is, for globular grains, the diameter thereof, and, for cubic or nonglobular grains, the average of the diameters of circular images obtained when converting projected images thereof into equivalent areal circular images, and each individual grain diameter is ri, and when the number of the? is ni,?is defined by the formula:

15.Color photographic material as claimed in any preceding Claim, wherein the monodispersed silver halide has a hexahedral, octahedral or tetradecahedral crystal habit.

16. Color photographic material as claimed in any preceding Claim, wherein the content of the colored magenta coupler in at least one green-sensitive emulsion layer is from 0.5 to 5 mole %, based on silver halide.

17. Color photographic material as claimed in any preceding Claim, wherein the transmission density of the colored magenta coupler in at least one green-sensitive emulsion layer is from 0.05 to 0.25.

18. Color photographic material as claimed in any preceding Claim, wherein the colored magenta coupler has the Formula (I),

wherein R1 is an aryl or heterocyclic radical; R2 is a phenyl radical having a halogen atom, or an alkoxy or aryloxy radical in the ortho position to the imino radical linked at position-3 of the pyrazolone ring; and R3 is a a phenyl radical having a hydroxy radical in the para position to the azo radical.

19. Color photographic material as claimed in any of Claims 1 to 17, wherein the colored magenta coupler has the Formula (II),

wherein R is a substituted phenyl radical; R4 and R8 are each a hydrogen or halogen atom, or a hydroxy alkyl, alkoxy or acylamino radical, provided that either R4 or R8 is a hydroxyl radical both R4 and R5 are simultaneously a hydroxyl radical; R8 is a hydrogen or halogen atom, or an alkyl, alkoxy, nitro, or acylamino radical; and R7 is a hydrogen or halogen atom or a monovalent organic radical.

20. Color photographic material as claimed in any of Claims 1 to 17, wherein the colored magenta coupler is a 4-phenylazo-2-pyrazolin-5-one compound having, in the para position to the azo radical thereof, a substituent alkoxy radical having the Formula (III): -O-A#k-X-R8 (III) wherein Atk is a straight or branched alkylene radical which is allowed to carry an aryl radical substituent; X is a bonding radical; and R8 is an aryl or substituted aryl radical.

21. Color photographic material as claimed in Claim 20, wherein the colored magenta coupler has the Formula (IV),

wherein A4k, X and R8 are as defined in Claim 20, Rg is a hydrogen or halogen atom or an electron-donating substituent; and Cp is a 2-pyrazoline-5-one residue linked through position-4.

22. Color photographic material as claimed in Claim 21, wherein the Cp residue is a group having the Formula (V),

wherein R10 is an alkyl, substituted alkyl, aryl, substituted aryl or 5- or 6-membered heterocyclic radical; and R11 is an alkyl, acylamino radical or anilino radical.

23. Color photographic material as claimed in Claim 20, wherein the colored magenta coupler is a 4-phenylazo-2-pyrazoline-5-one compound having Formula (VI),

wherein R8, X and A#k are as defined in Claim 20; Y is a phenyl or substituted phenyl radical; Z is a hydrogen or halogen atom, or an alkyl, alkoxy, nitro, cyano, or hydroxyl radical; and W is a hydrogen atom, or an alkyl, alkoxy, alkylthio, alkyl-sulfonyl, aryl, aryloxy, aryl-sulfonyl, aryloxy-sulfonyl, amino, substituted amino, carbamoyl, sulfamoyl, N-substituted carbamoyl, or N-substituted sulfamoyl radical.

24. Color photographic material as claimed in Claim 20, 21 or 23, wherein X is O, S, CO, SO2SO2O, CONQ, NQCO, SO2NQ or NOSY2 wherein Q is a hydrogen atom, or an alkyl or aryl radical.

25. Color photographic material as claimed in any of Claims 1 to 17, wherein the colored magenta coupler has the Formula (VII),

wherein R12, R,3 and R14, which may be the same or different, are each a hydrogen or halogen atom, ora nitro, a cyano, alkyl, alkoxy, alkoxycarbonyl, or carboxyamido radical; R15 is a halogen atom, or an alkoxy or aryloxy radical; R16 is a carboxyamido, sulfonamidb, alkoxycarboxyamido, aryloxycarboxyamido, imido, carbamoyl, sulfamoyl, alkoxycarbonyl, or aryloxycarbonyl radical; R17 is a hydrogen atom or an alkyl radical; R18 is an alkyl, alkoxy, aryloxy, alkylamino or arylamino radical, or R17 and R18 can, together with the nitrogen atom and carbonyl group to which they are respectively attached for a 4- or 5member ring; and Rag is a hydrogen atom, or a hydroxyl, alkyl or alkoxy radical, provided that if the R19 is a hydroxyl radical, it is in the meta position to the azo radical.

26. Color photographic material as claimed in Claim 1 and substantially as hereinbefore described with reference to the Example.