Silver halide color photographic light-sensitive material

FIELD OF THE INVENTION
The present invention relates to a silver halide color photographic light-sensitive material, more particularly, to a silver halide color photographic light-sensitive material having high sharpness, high speed, less fogging and excellent raw stock stability.
BACKGROUND OF THE INVENTION
In general, a silver halide color photographic light-sensitive material (hereinafter, it may be called simply "light-sensitive material".) comprises a support having thereon a red sensitive silver halide emulsion layer containing cyan couplers, a green sensitive silver halide emulsion layer containing magenta couplers and a blue sensitive silver halide emulsion layer containing yellow couplers. In addition, anti-halation layers, intermediate layers, filter layers and protective layers are provided, if necessary. Normally, between a blue sensitive silver halide emulsion layer and a green sensitive silver halide emulsion layer, a yellow filter layer capable of being bleached is provided in order to absorb blue light being transmitted through a blue sensitive silver halide emulsion layer.
In addition, between emulsion layers, an intermediate layer may be provided, and as an outermost layer, a protective layer may be provided. It is known that the above-mentioned light-sensitive silver halide emulsion layer may be provided in a different order from the above-mentioned order. In addition, it is also known that, as each of silver halide emulsion layer, light-sensitive silver halide emulsion layer comprising 2 or more layers having light-sensitivity in substantially the same wavelength on each color light and having different sensitivity may be provided.
In general, it is important for a light-sensitive material to have high speed and less fogging. In recent light-sensitive materials, demand for image quality in users side has been urged and progress in changing to small format has been seen. Therefore, images having high sharpness and high image quality are desired still more, and much endeavors have been continued so far.
For the improvement in sharpness, various investigation have been performed from the viewpoint of optical and development effect.
From optical point of view, it is known to control the grain size of silver halide emulsions scattering light by making them to mono-dispersed silver halide emulsion and to reduce the sum of light-sensitive silver halide emulsion to 10 g/m.sup.2 or less (in terms of Ag).
In the same manner as mentioned above, making thin of photographic component layer has been investigated from the viewpoint of shortening the path of light scattering. Especially, in the case of silver halide emulsion layer nearer to a support, to make them thin has been known to be an effective means for the improvement in sharpness because the path of light scattering from the surface of light-sensitive material is long. (For example, Journal of the Optical Society of America) 58(9), 1245-1256 (1968), Photographic Science and Engineering) 16 (3), pp. 181-191 (1972).
In addition, as practical means, it has been known to remove nonsensitive intermediate layers mainly composed of gelatin, to reduce coating amount of gelatin merely, to reduce coating amount of coupler, to reduce the amount of high boiling solvent for coupler dispersion and to use so-called polymer couplers.
In general, for a silver halide color photographic light-sensitive material for photographing use, a layer structure of a red sensitive layer, a green sensitive layer and a blue sensitive layer in this order from a support for the improvement in color reproducibility is often adopted, wherein a yellow filter layer is provided on the support side of blue sensitive layer in order to cut blue sensitive portion of the green sensitive layer and the red sensitive layer. Normally, in order to improve color separation property (cutting property) by means of aforesaid yellow filter layer, a method of enhancing the concentration of yellow filter layer is utilized. However, when a yellow filter layer is thickened, it is not preferable because the sharpness of a green light-sensitive layer and a red light-sensitive layer are degraded while color reproducibility is improved.
On the other hand, a technology to add hydrophilic yellow dye, especially in a blue sensitive layer, is known for the improvement in sharpness. This method is not preferable because desensitization of blue sensitive layer due to dye is considerable, while sharpness is improved.
In addition, a method to make a yellow filter layer thin and to increase adding amount of yellow colloidal silver. In this case, however, there are defects to make fog of a light-sensitive layer adjoining to the yellow filter layer and to deteriorate processing stability remarkably.
Normally, at the upper side or the lower side of aforesaid yellow filter layer, an intermediate layer mainly composed of gelatin is provided. However, when this intermediate layer was removed as means for making the layer thin, it turned out that fogging on the adjoining blue sensitive silver halide emulsion layer and green sensitive silver halide emulsion layer were increased and the sensitivity was decreased.
With regard to the increase of fogging and the decrease of sensitivity, the detail of the mechanism is unknown. However, it is considered that contact of colloidal silver contained in the yellow filter layer and the anti-halation layer to the silver halide emulsion is one of the causes.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a silver halide color photographic light-sensitive material having high sharpness, high speed, less fogging and excellent raw stock stability.
The above-mentioned object of the present invention is attained by the following silver halide color photographic light-sensitive material:
(1) A silver halide color photographic light-sensitive material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer, a red sensitive silver halide emulsion layer and a yellow filter layer wherein at least one kind of silver salt of dye is contained in at least one of said yellow filter layer.
(2) A silver halide color photographic light-sensitive material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer, a red sensitive silver halide emulsion layer and an anti-halation layer wherein at least one kind of silver salt of dye is contained in at least one of said anti-halation layer.
(3) A silver halide color photographic light-sensitive material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer wherein at least one of benzoylacetoanilido type yellow coupler is contained in at least one of said blue sensitive silver halide emulsion layers and at least one kind of silver salt dye is contained in any of photographic component layers.
(4) A silver halide color photographic light-sensitive material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer wherein at least one of cyan couplers represented by the following formulas C-1 or C-2 is contained in at least one of said red sensitive silver halide emulsion layer and at least one kind of silver salt dye is contained in any of photographic structure layers. ##STR1## (wherein R.sub.31 represents --CON(R.sub.34)(R.sub.35), --NHCOR.sub.34, --NHCOOR.sub.36, --NHSO.sub.2 R.sub.36, --NHCON(R.sub.34)(R.sub.35), --SO.sub.2 N(R.sub.34)(R.sub.35) or --NHSO.sub.2 N(R.sub.34)(R.sub.35); R.sub.32 represents a hydrogen atom or a substituent; R.sub.33 represents a substituent; X represents a hydrogen atom or a group splitting off by the reaction with an aromatic primary amine developer oxidation product; l represents 0 or 1; m represents 0 to 3 integers; R.sub.34 and R.sub.35 respectively represent a hydrogen atom, an aromatic group, an aliphatic group or a heterocyclic group; R.sub.36 represents an aromatic group, an aliphatic group or a heterocyclic group. When m is 2 or 3, each of R.sub.33 may be the same or different, and may be linked together to form a ring. In addition, R.sub.34 and R.sub.35, R.sub.32 and R.sub.33 and R.sub.32 and X may form rings. However, when l represents 0, R.sub.31 represents --CONHR.sub.37 and R.sub.37 represents an aromatic group.) ##STR2## (wherein X' represents a hydrogen atom or a group capable of being split off by coupling with an aromatic primary amine color developer; R.sub.1 ' represents an aryl group or a heterocyclic group; R.sub.2 ' represents an aliphatic group or an aryl group.)
(5) A silver halide color photographic light-sensitive material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer wherein at least one heterocyclic type anti-foggant is contained in at least one of aforesaid light-sensitive silver halide emulsion layers and at least one kind of silver salt dye is contained in any of photographic component layers.

DETAILED DESCRIPTION OF THE INVENTION
Hereunder, we will explain the present invention in detail.
At first, we will explain silver salt of dye in the present invention.
In the present invention, a silver salt of dye represents a silver salt and a silver complex formed by the reaction between a dye and a silver ion. A dye represents an organic compound having absorption in a visible spectral (380-700 nm).
Hereunder, we will explain preferable dyes capable of forming silver salt of dyes used in the present invention. However, the present invention is not limited thereto.
As the above-mentioned dyes, dyes represented by the following formulas I to V can be cited. ##STR3## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group; X.sub.1 and X.sub.2 each represents an oxygen atom or a sulfur atom; L.sub.1 to L.sub.5 represent methine groups; n.sub.1 and n.sub.2 each represents 0 to 2 integers; E.sub.1 represents a group having an acid nucleus.) ##STR4## wherein R.sup.3 and R.sup.4 are the same as R.sub.1 and R.sup.2 in Formula I; X.sub.3 and X.sub.4 are the same as X.sub.1 and X.sub.2 in Formula I; L.sub.6 to L.sub.9 represent methine group; n.sub.3 to n.sub.5 represent 0 to 2 integers; R.sup.5 represents an alkyl group or an alkenyl group; Q.sub.1 represents a non-metallic atom group necessary for forming 5- membered or 6-membered heterocyclic group.) ##STR5## (wherein R.sup.6 and R.sup.7 represent R.sup.1 and R.sup.2 in Formula I; X.sub.5 and X.sub.6 represent X.sub.1 and X.sub.2 in Formula I; R.sup.8 to R.sup.10 represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a halogen atom, a cyano group, a sulfo group, --COR.sup.11, --CON(R.sup.11`)(R.sup.12), --N(R.sup.11)(R.sup.12), --OR.sup.11, --SOR.sup.11, --SO.sub.2 R.sup.11, --SO.sub.2 N(R.sup.11)(R.sup.12), --N(R.sup.11)COR.sup.12, --N(R.sup.11)SO.sub.2 R.sup.12, --N(R.sup.11)CON(R.sup.12)(R.sup.13), --SR.sup.11 or --COOR.sup.11 ; R.sup.11 to R.sup.13 represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group. ##STR6## (wherein R.sup.14 and R.sup.15 are the same as R.sup.1 and R.sup.2 in Formula I; X.sub.7 and X.sub.8 are the same as X.sub.1 and X.sub.2 in Formula I. L.sub.10 to L.sub.12 represent methine groups; n.sub.6 represents 0 to 2 integers; R.sup.16 to R.sup.18 are the same as R.sup.8 to R.sup.10 in Formula III. ##STR7## (wherein R.sup.19 and R.sup.20 are the same as R.sup.1 and R.sup.2 in Formula I; X.sub.9 and X.sub.10 are the same as X.sub.1 and X.sub.2 ; W.sub.1 represents an aryl group or a heterocyclic group.)
In the above-mentioned formulas, as alkyl groups represented by R.sup.1 and R.sup.2, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, a cyclopentyl group and a cyclohexyl group are cited. The above-mentioned alkyl group may be substituted by a hydroxy group, a cyano group, a sulfo group, a carboxyl group, a halogen atom (for example, a fluorine atom, a chlorine atom and a bromine atom), an alkoxy group (for example, a methoxy group and an ethoxy group), an aryloxy group (for example, a phenoxy group, a 4-sulfophenoxy group, a 2,4-disulfophenoxy group), an aryl group (for example, a phenoxy group, a 4-sulfophenyl group and a 2,5-disulfophenyl group), an alkoxycarbonyl group (for example, a methoxycarbonyl group and an ethoxycarbonyl group) and an aryloxycarbonyl group (for example, a phenoxycarbonyl group).
As aryl groups represented by R.sup.1, R.sup.2 and W.sub.1, for example, a phenyl group and a naphthyl group are cited. These groups can be substituted by an alkyl group represented by R.sup.1 and R.sup.2 and the same group as a substituent represented by the substituent for an alkyl group.
As heterocyclic group represented by R.sup.1, R.sup.2 and W.sub.1, for example, a pyridyl group, a thiazolyl group, an oxazolyl group, an imidazolyl group, a furyl group, a pyrrolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a purinyl group, a selenazolyl group, a sulforanyl group, a piperidinyl group, a pyrazolyl group and a tetrazolyl group are cited. These groups can be substituted by an alkyl group represented by R.sup.1 and R.sup.2 and the same group as a substituent represented by the substituent for an alkyl group.
As alkenyl groups represented by R.sup.1 and R.sup.2, for example, a vinyl group and an aryl group are cited. These groups can be substituted by an alkyl group represented by R.sup.1 and R.sup.2 and the same group as a substituent represented by the substituent for an alkyl group.
As groups having an acid nucleus represented by E.sub.1 in Formula I, for example, a group having a skeleton described in the 20th line of page 11 to 15th line of page 14 of Japanese Patent O.P.I. Publication and groups illustrated by the following formulas 1 to 4: ##STR8## (wherein R.sup.21 and R.sup.22 are the same as R.sup.1 and R.sup.2 in the above-mentioned formula I. In addition, X.sub.11 and X.sub.12 are the same as X.sub.1 and X.sub.2 in Formula I.) ##STR9## (wherein R.sup.23 is the same as R.sup.1 and R.sup.2 in the above-mentioned formula I; R.sup.24 and R.sup.25 are the same as R.sup.8 to R.sup.10 in the abovementioned formula III.) ##STR10## (wherein R.sup.26 is the same as R.sup.1 and R.sup.2 in the above-mentioned formula I; R.sup.27 is the same as R.sup.8 to R.sup.1 O in the above-mentioned formula III.) ##STR11## (wherein R.sup.28 is the same as R.sup.1 and R.sup.2 in the above-mentioned formula I; R.sup.29 represents an alkyl group, an aryl group, an alkenyl group, a heterocyclic group, a cyano group, --COR.sup.30, --CON(R.sup.30)(R.sup.31), --OR.sup.30, --SOR.sup.30, --SO.sub.2 R.sup.30, --SO.sub.2 N(R.sup.30)(R.sup.31), --N(R.sup.30)COR.sup.31, --N(R.sup.30)SO.sub.2 R.sup.31 --N(R.sup.30)CON(R.sup.31)(R.sup.32), --SR.sup.30 and --COOR.sup.30 ; R.sup.30 to R.sup.32 are the same as R.sup.11 to R.sup.13 in the abovementioned formula III.)
As above-mentioned alkyl group, alkenyl group, aryl group and heterocyclic group, the same group as those illustrated in R.sup.1 and R.sup.2 are cited.
In the above-mentioned explanation, the groups having an acid nucleus represented by E.sub.1 was illustrated in the form of keto type. However, it is chemically apparent that they can take form of enol by means of tautomerism.
As 5-membered or 6-membered heterocycles formed in Q.sub.1 in Formula II, heterocycles described in pp.23 to 26 in Japanese Patent O.P.I. Publication No. 282832/1986 and heterocycles represented by ##STR12## (wherein R.sup.33 represents the same as R.sup.1 and R.sup.2 in the above-mentioned Formula I; R.sup.34 are the same as R.sup.8 to R.sup.10 in the above-mentioned Formula III; l.sub.1 represents 0 to 3 integers.)
The following are practical examples of compounds illustrated by Formulas I to V. ##STR13##
In addition, as dyes used in the present invention, dyes illustrated in the following formulas I' to V' may be cited. ##STR14## (In formulas I' to V', R.sup.35 represents an alkyl group and an alkenyl group; R.sup.36 and R.sup.37 represent an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a halogen atom, a cyano group, a sulfo group, --COR.sup.38, --CON(R.sup.38) (R.sup.39), --N(R.sup.38) (R.sup.39), --OR.sup.38, --SOR.sup.38, --SO.sub.2 R.sup.38, SO.sub.2 N(R.sup.38) (R.sup.39), --N(R.sup.38) COR.sup.39, --N(R.sup.38) SO.sub.2 R.sup.39, --N(R.sup.38) CON (R.sup.39) (R.sup.40), --SR.sup.38 and --COOR.sup.38 ; R.sup.38 to R.sup.40 represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group and a heterocyclic group.
A represents a group represented by the following formulas A.sub.1 to A.sub.4 ; A' represents a group represented by the following formulas A'.sub.1 to A'.sub.4. ##STR15## (In Formulas A.sub.1 to A.sub.4 and A'.sub.1 to A'.sub.4, R.sup.41, R.sup.42, R.sup.44 and R.sup.46 represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group and a heterocyclic group; R.sup.43 represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a cyano group, --COR.sup.47, --CON(R.sup.47)(R.sup.48), --N(R.sup.47)(R.sup.48), --OR.sup.47, --SOR.sup.47, --SO.sub.2 R.sup.47, --SO.sub.2 N(R.sup.47)(R.sup.48), --N(R.sup.47)COR.sup.48, --N(R.sup.47)SO.sub.2 R.sup.48, --N(R.sup.47)CON(R.sup.48)(R.sup.49), --SR.sup.47 and --COOR.sup.47 ; R.sup.47 to R.sup.49 represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group and a heterocyclic group; R.sup.45 is the same as R.sup.36 and R.sup.37 ; X.sub.13 represents an oxygen atom, a sulfur atom, a selenium atom and .dbd.N--R.sup.50. R.sup.50 is the Same as R.sup.41. X.sub.14, X.sub.15 and X.sub.16 represents an oxygen atom and a sulfur atom.)
L represents a methine group, and E represents a group having an acid nucleus. Q represents an non-metallic atoms necessary for forming a heterocycle. W.sub.2 represents an aryl group and a heterocyclic group. n.sub.7 and n.sub.8 represent 0 to 3 integers. n.sub.9 and n.sub.10 represent 0 to 2 integers. l.sub.2 and l.sub.3 represents 0 to 3 integers.
We will explain compounds illustrated by Formulas I' to V'.
As alkyl groups represented by the above-mentioned R.sup.35 to R.sup.50, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, a cyclopentyl group and a cyclohexyl group are cited. The above-mentioned alkyl group may be substituted by a hydroxy group, a cyano group, a sulfo group, a carboxy group, a halogen atom (for example, a fluorine atom, a chlorine atom and a bromine atom), an alkoxy group (for example, a methoxy group and an ethoxy group), an aryloxy group (for example, a phenoxy group, a 4-sulfophenoxy group, a 2,4-disulfophenoxy group), an aryl group (for example, a phenyl group, a 4-sulfophenyl group, a 2,5-disulfophenyl group) and an alkoxycarbonyl group (for example, a methoxycarbonyl group).
As aryl group represented by R.sup.36 to R.sup.50 and W.sub.2, for example, a phenyl group and a naphthyl group are cited. These groups can be can be substituted by alkyl groups represented by R.sup.35 to R.sup.50 and the same group as substituents represented by the substituents of alkyl groups.
As heterocyclic group represented by R.sup.36 to R.sup.50 and W.sub.2, for example, a pyridyl group, a thiazolyl group, an oxazolyl group, an imidazolyl group, a furyl group, a pyrrolyl group, a pyrazinyl group, a pyrimidyl group, a pyridazinyl group, a purynyl group, a selenazolyl group, a sulforanyl group, a piperidinyl group, a pyrazolyl group and a tetrazolyl group are cited. These groups can be substituted by alkyl groups represented by R.sup.35 to R.sup.50 and the same groups as substituents represented by substituents of alkyl groups.
As alkenyl group represented by R.sup.35 to R.sup.50, for example, a vinyl group and an aryl group can be cited. These groups can be substituted by alkyl groups represented by R.sup.35 to R.sup.50 and the same groups as substituents represented by substituents of alkyl groups.
As groups having an acid nucleus illustrated by E in Formula I', for example, groups having skeleton described in 20th line on page 11 to 15th line on page 14 of Japanese Patent 0.P.I. Publication No. 281235/1986, groups having nucleus illustrated in Formulas A'.sub.1 to A'4 and groups represented by the following formulas Nos. 6 to 8. ##STR16## (wherein R.sup.51 and R.sup.41 are the same; R.sup.52 and R.sup.53 represent a hydrogen atom and a group illustrated by R.sup.36 precedingly.) ##STR17## (wherein R.sup.54 is the same as R.sup.41 ; R.sup.55 represents a hydrogen atom and a group illustrated by R.sup.36.) ##STR18## (wherein R.sup.56 is the same as R.sup.42 ; R.sup.57 is the same as R.sup.43.)
As heterocycles formed by Q.sub.2 in Formula II', for example, heterocycles described in pp. 23 to 26 of Japanese Patent O.P.I. Publication No. 282832/1986 and a heterocycle represented by ##STR19## (wherein R.sup.58 is the same as R.sup.41 ; R.sup.59 is the same as R.sup.36 ; l.sub.4 is an integer of 0 to 3.).
Hereunder, we will show practical examples of compounds represented by Formulas I' to V'. ##STR20##
In addition, as dyes used in the present invention, dyes represented by the following formula VI (hereunder, referred to as methine compound) are cited;
(Dye).sub.l5 [-[(J).sub.ml--Sal].sub.n11 Formula VI
(wherein Dye represents atom group having a methine dye structure; J represents a divalent combination group with an atom or atoms selected from a carbon atom, a nitrogen atom, an oxygen atom and a sulfur atom as a structure; Sal represents a group forming a sparingly soluble salt with a silver ion; l5 represents 1 or 2; m.sub.1 represents 0 or 1; n.sub.11 represents 1, 2, 3 or 4.)
In Formula VI, groups illustrated by Dye represents atom group having a methine dye structure. They are, for example, group having a dye structure wherein a methine chain such as a cyanine chain, a merocyanine chain, a merostyryl chain, a stylyl chain, an oxonol chain and a triarylmethane chain are subjected to conjugate double bond. As practical examples of the above-mentioned dyes, cyanine dyes described in Japanese Patent O.P.I. Publication No. 202665/1988 and Russian Patent No. 653,257, merocyanine dyes described in Japanese Patent O.P.I. Publication Nos. 29727/1977, 60825/1977, 135335/1977, 27146/1981, 29226/1981, 10944/1984, 15934/1984, 111847/1984 and 34539/1988 and U.S. Pat. Nos. 2,944,896 and 3,148,187, merostyl dyes described in Japanese Patent O.P.I. Publication Nos. 211041/1984, 211042/1984, 135936/1985, 135937/1985, 204630/1986, 205934/1986, 569/1987, 70830/1987, 92949/1987 and 185758/1987, oxonol dyes described in Japanese Patent O.P.I Publication Nos. 145125/1975, 33103/1980, 120660/1980, 161233/1980, 185755/1987, 139949/1988, 231445/1988 and 264745/1988, U.S. Pat. No. 4,187,275, British Patent No. 1,521,083 and Belgium Patent No. 859,677 and triarylmethane dyes described in Japanese Patent O.P.I. Publication Nos. 55437/1984 and 228250/1984, U.S. Pat. Nos. 4,115,126 and 4,359,574 are cited. In addition, dyes are selected from publications such as Theory of Photographic Process published by MaCmillan Co., Ltd. in 1977 edited by T. H. James, Heterocyclic compounds Cyanine dyes and Related compounds published by John Wiley & Sons (New York London) in 1964 written by F. M. Harmer, The Chemistry of Heterocyclic Compounds published in 1977 written by D. M. Sturmer and edited by A. Weissberger and E. C. Taylor and The Chemistry of Synthetic Dyes Vol. II published in 1952 and Vol. IV published in 1971 by Academic Press (New York London).
J represents a divalent combination group with an atom or atoms selected from a carbon atom, a nitrogen atom, an oxygen atom and a sulfur atom as a skeleton. The preferable groups are divalent combination groups having 20 or less carbons composed of one of or in combination of an alkylene group (for example, a methylene group, an ethylene group, a propyrene group and a pentylene group), an allylene group (for example, a phenylene group), an alkenylene group (for example, an ethylene group and a propenylene group), a sulfonyl group, a sulfinyl group, an ether group, a thioether group, a carbonyl group and --N(R.sup.60)-- group (R.sup.60 represents a hydrogen atom, a substituted or unsubstituted alkyl group and a substituted or unsubstituted aryl group). They may have a substituent. As substituents, conventional ones are cited including a halogen atom (for example, a fluorine atom, a chlorine atom and a bromine atom), an alkyl group (for example, a methyl group, an ethyl group, an isopropyl group and a butyl group), an aralkyl group (for example, a benzyl group and a phenethyl group), an alkoxy group (for example, a methoxy group and an ethoxy group), an alkoxycarbonyl group (for example, an ethoxycarbonyl group), an alkylthio group, a hydroxy group, a carboxy group, a sulfo group, a sulfonyl group (for example, a methanesulfonyl group and p-toluenesulfonyl group), a carbamoyl group (for example, N-methylcarbamoyl group and a monopholynocarbonylamino group), an acyl group (for example, an acetyl group and a benzoyl group), an acylamide group (for example, an acetoamide group), a sulfonamido group (for example, a methanesulfonamide group and a butanesulfonamide group), a cyano group, an amino group (for example, an ethylamino group and adimethylamino group) and an ureido group.
l.sub.5 represents 1 or 2; m.sub. represents 0 or 1; n.sub.11 represents 1, 2, 3 or 4. Sal represents a group forming sparingly soluble salt with a silver ion including a mercapto group, an acetylene group, a thiocarbonyl group, a thioamide group, a thiourethane group, a thioureido group (for example, a 3-ethylthioureido group and a 3-phenylthioureido group) and saturated or unsaturated 5-membered to 7-membered heterocyclic residues containing at least 1 nitrogen atom inside the ring. As preferable group, groups illustrated by Formulas VIII and IX described in Japanese Patent O.P.I. Publication No. 97937/1990 and groups illustrated by Formulas II to VI described in Japanese Patent O.P.I Publication No. 225476/1990 are cited.
Next, practical examples of methine compounds in the present invention are shown.
VI-1 ##STR21## VI-2 ##STR22## VI-3 ##STR23## VI-4 ##STR24## VI-5 ##STR25## VI-6 ##STR26## VI-7 ##STR27## ##STR28## No. ##STR29## R.sup.61 (L.sup.41L.sup.42).sub.l.spsb.41 (L.sup.43L.sup.44).sub.l.spsb. 42 ##STR30## VI-8 ##STR31## ##STR32## CHCH -- ##STR33## VI-9 ##STR34## ##STR35## CHCH -- ##STR36## VI-10 ##STR37## ##STR38## CHCH -- ##STR39## VI-11 ##STR40## ##STR41## CHCH CHCH ##STR42## VI-12 ##STR43## (CH.sub.2).sub.2 NHCSNHCH.sub.3 CHCH CHCH ##STR44## VI-13 ##STR45## ##STR46## CHCH CHCH ##STR47## VI-14 ##STR48## C.sub.2 H.sub.5 ##STR49## -- ##STR50## VI-15 ##STR51## C.sub.2 H.sub.5 ##STR52## -- ##STR53## VI-16 ##STR54## ##STR55## CHCH ##STR56## ##STR57## ##STR58## No. ##STR59## R.sup.61 V.sup.51 W.sup.51 (L.sup.51L.sup.52).sub.l.spsb.51 (L.sup.53L.s up.54).sub.l.spsb.52 VI-17 ##STR60## C.sub.2 H.sub.4 COOH CN ##STR61## CHCH -- VI-18 ##STR62## C.sub.2 H.sub.5 CN ##STR63## CHCH -- VI-19 ##STR64## ##STR65## CN COO(CH.sub.2 CH.sub.2 O).sub.3 CH.sub.3 CHCH CHCH VI-20 ##STR66## ##STR67## COCH.sub.3 CONH(CH.sub.2 CH.sub.2 O).sub.3 CH.sub.3 CHCH CHCH ##STR68## No. ##STR69## R.sup.62 Ar.sup.61 (L.sup.61L.sup.62).sub.l.spsb.61 (L.sup.63L.sup.64).s ub.l.spsb.62 VI-21 ##STR70## ##STR71## ##STR72## CHCH -- VI-22 ##STR73## CH.sub.2 COOH ##STR74## CHCH -- VI-23 ##STR75## ##STR76## ##STR77## CHCH -- VI-24 ##STR78## ##STR79## ##STR80## CHCH CHCH E.sup.71L.sup.71(L.sup.72L.sup.73).sub.l.spsb.71Ar.sup.71 No. E.sup.71 Ar.sup.71 L.sup.71(L.sup.72L.sup.73).sub.l.spsb.71 VI-25 ##STR81## ##STR82## CH VI-26 ##STR83## ##STR84## CH VI-27 ##STR85## ##STR86## CH VI-28 ##STR87## ##STR88## CH VI-29 ##STR89## ##STR90## CHCHCH VI-30 ##STR91## ##STR92## CHCHCH VI-31 ##STR93## ##STR94## CH VI-32 ##STR95## ##STR96## CH VI-33 ##STR97## ##STR98## CH Q.sup.81(L.sup.81L.sup.82).sub.l.spsb.81(L.sup.83L.sup.84).sub.l.spsb.8 2L.sup.85Q.sup.82 (L No. Q.sup.81 Q.sup.82 (L.sup.81L.sup.82).sub.l.spsb.81.sup.83L.sup.84).s ub.l.spsb.82L.sup.85 VI-34 ##STR99## ##STR100## CHCHCH VI-35 ##STR101## ##STR102## CH VI-36 ##STR103## ##STR104## CHCHCHCHCH VI-37 ##STR105## ##STR106## CHCHCHCHCH VI-38 ##STR107## ##STR108## CHCHCH VI-39 ##STR109## ##STR110## CHCHCHCHCH VI-40 ##STR111## ##STR112## CHCHCH VI-41 ##STR113## ##STR114## CHCHCHCHCH VI-42 ##STR115## ##STR116## CHCHCH VI-43 ##STR117## ##STR118## CHCHCH VI-44 ##STR119## ##STR120## CH VI-45 ##STR121## ##STR122## CHCHCH VI-46 ##STR123## ##STR124## CHCHCH VI-47 ##STR125## ##STR126## CHCHCHCHCH VI-48 ##STR127## VI-49 ##STR128## VI-50 ##STR129## VI-51 ##STR130## VI-52 ##STR131##
Methine compounds in the present invention can be synthesized by either a method to make a dye from intermediate raw materials wherein refractory silver salt forming group illustrated by Sal has been substituted in advance or a method to combine a methine dye structure portion illustrated by Dye and Sal portion. The above-mentioned methods can be selected optionally to synthesize. Various conventional binding reaction can be utilized for the introduction of Sal group. For example, addition reaction to unsaturated groups such as a vinyl group and a carbonyl group and substituted reaction between active hydrogen substituent such as an amino group and a hydroxy group and acid derivatives and halogen derivatives are employed. In conducting the above-mentioned reactions, many documents including New Experimental Chemical 14 "Syntheses and Reactions of Organic Chemistry" Volumes I to V edited by Japan Chemical Academy published by Maruzen (in 1962), Organic Reactions Volumes 1, 3 and 12 published by John Wiley & Sons (New York London), The Chemistry of Functional Groups published by John Wiley & Sons (New York London) and Advanced Organic Chemistry written by L. F. Fieser and M. Fieser published by Maruzen (in 1962).
The methine dyes in the present invention are reacted with soluble silver salt aqueous water to be sparingly soluble silver salts, which are dispersed and added into the silver halide photographic light-sensitive material.
Next, we will explain the yellow filter layer in the present invention.
When a silver salt of dye is contained in the yellow filter layer in the present invention, the adding amount of silver salt of dye is preferably 0.05 to 2.0 g/m.sup.2 and more preferably 0.1 to 1.0 g/m.sup.2. The adding amount of gelatin to the yellow filter layer is preferably 0.3 to 1.5 g/m.sup.2 and more preferably 0.5 to 1.0 g/m.sup.2.
In the present invention, the ratio between the adding amount of silver salt of dye contained in the yellow filter layer and the adding amount of gelatin (adding amount of silver salt of dye and adding amount of gelatin) is 0.1 or more, preferably 0.1 to 2.0 and more preferably 0.2 to 1.0.
In addition to silver salt of dyes, the yellow filter layer in the present invention may contain yellow colloidal silver, conventional yellow dyes and color mixture preventing agents may contain.
Next, we will explain the anti-halation in the present invention.
For the purpose of preventing the blurred image, namely halation, caused by re-entrance into the photographic emulsion layer of light which is scattered when it passes through or after it passes through the photographic emulsion layer and then is reflected on the interface between the emulsion layer and the support or on the surface of light-sensitive material of the rear side thereof, colored layers can be provided between the photographic emulsion layer and the support or on the surface of the support opposite to the photographic emulsion layer. These colored layers are called anti-halation layer. In the case of multi-layer color light-sensitive material, anti-halation layers may sometimes be provided between layers.
When silver salt of dyes are contained in the anti-halation layers in the present invention, the adding amount of silver salt of dye is preferably 0.05 to 2.0 g/m.sup.2 and more preferably 0.1 to 1.0 g/m.sup.2 The adding amount of gelatin in the anti-halation layer is preferably 0.3 to 1.5 g/m.sup.2 and more preferably 0.5 to 1.0 g/m.sup.2.
In the present invention, the ratio between the adding amount of silver salt of dye and the adding amount of gelatin both contained in the anti-halation layer is 0.1 or more, preferably 0.1 to 2.0 and more preferably 0.2 to 1.0.
In addition to silver salt of dye, the anti-halation layer in the present invention may contain black colloidal silver, conventional dyes, colored couplers and UV absorbers.
Next, we will explain benzoylacetoanilido type yellow couplers used in the present invention.
As benzoylacetoanilido type couplers used in the present invention, any benzoylacetoanilido derivatives can be used. However, the preferable ones are compounds represented by the following Formula YB-I. ##STR132## wherein R.sub.21 to R.sub.27 and W.sub.Y represent a hydrogen atom or a substituent; R.sub.21, R.sub.22 and R.sub.23 may be the same or different and each of them preferably represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an acylamino group, a carbamoyl group, an alkoxycarbonyl group, a sulfonamide group or a sulfamoyl group;
R.sub.24 , R.sub.25, R.sub.26 and R.sub.27 contain the same and different. Each of them preferably represents a hydrogen atom, an alkyl group, an alkoxy group, an aryloxy group, an acylamino group or a sulfonamide group;
W.sub.Y preferably represents a halogen atom, an alkyl group, an alkoxy group, an aryloxy group or a dialkylamino group.
X.sub.Y represents a hydrogen atom or a group capable of being split off; as groups capable of being split off, for example, a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, an alkylthio group, an arylthio group, a heterocyclicthio group and saturated or unsaturated 5-membered or 6-membered nitrogen-containing heterocyclic group; particularly preferable groups are represented by Formula YB-II and YB-III; ##STR133## Y.sub.1 represents non-metallic atoms necessary for forming 5- to 6-membered ring; said non-metallic atoms contain those having a substituent;
--O--Ar Formula YB-III
Ar represents an aryl group and said aryl groups containing a substituent.
Hereunder, we will cite practical examples of benzoylacetoanilido type yellow coupler. However, the present invention is not limited thereto.
______________________________________ ##STR134##Illus-tratedcom-poundNo. R.sub.21 R.sub.22 R.sub.23 R.sub.24 R.sub.25 R.sub.26 R.sub.27 W.sub.Y X.sub.Y______________________________________YB-1 H H (7) H H (4) H (1) (16)YB-2 H H (7) H H (4) H (1) (17)YB-3 H H (8) H H H H (1) (18)YB-4 H H (8) H H H H (4) (19)YB-5 H H (6) (2) H H H (4) (20)YB-6 H H (9) H H (4) H (1) (21)YB-7 H H (11) H (10) (4) H (4) (22)YB-8 H H H H H H (7) (4) (23)YB-9 H H (12) H H (4) H (1) (24)YB-10 H H (13) H H H H (1) (25)YB-11 H H (14) H H (4) H (1) (26)YB-12 H H (15) H H (4) H (4) (27)YB-13 H H H H H (4) H (4) HYB-14 H H H H H (5) H (1) (28)YB-15 H H (6) H H (4) H (1) (17)YB-16 H H (6) H H (4) H (1) (29)YB-17 H H (7) H H (4) H (1) (29)YB-18 H H H H H H (7) (4) HYB-19 H H (30) (31) H H H (1) HYB-20 H H (11) H H (32) H (1) (33)YB-21 H H (34) H H (4) H (1) (35)YB-22 H (4) (4) H H (34) H (1) (36)YB-23 H H (37) H H (4) H (1) (45)YB-24 H H (38 H H (4) H (1) (45)YB-25 H H (6) H H (39) H (1) (45)YB-26 H H (40) H H (4) H (1) (45)YB-27 H H (37) H H (4) H (1) (46)YB-28 H H (41) H H (4) H (1) (47)YB-29 H H (6) H H (4) H (1) (48)YB-30 H H (42) H H (4) H (1) (49)YB-31 H H (37) H H (4) H (1) (50)YB-32 H H (37) H H (4) H (1) (51)YB-33 H H (6) H H (4) H (1) (52)YB-34 (7) H (43) (1) H H (1) H (53)YB-35 (44) H (6) H H (4) H (1) (54)YB-36 H H (14) H H (4) H (1) (55)YB-37 H H (57) H H (4) H (1) (56)YB-38 H H (6) H H (4) H (1) (58)YB-39 H H (37) H H (4) H (1) (59)______________________________________ (1) Cl (2)CH.sub.3 (3)C.sub.18 H.sub.37 (4)OCH.sub.3 (5)NHCOC.sub.17 H.sub.35 (6)COOC.sub.12 H.sub.35 (7) ##STR135## (8) ##STR136## (9) ##STR137##(10) ##STR138##(11) ##STR139##(12) ##STR140##(13) ##STR141##(14) ##STR142##(15) ##STR143##(16) ##STR144##(17) ##STR145##(18) ##STR146##(19) ##STR147##(20) ##STR148##(21) ##STR149##(22) ##STR150##(23) ##STR151##(24) ##STR152##(25) ##STR153##(26) ##STR154##(27) ##STR155##(28) ##STR156##(29) ##STR157##(30) ##STR158##(31)OC.sub.18 H.sub.37(32)OC.sub.16 H.sub.33(33) ##STR159##(34)COOC.sub.8 H.sub.17(35) ##STR160##(36) ##STR161##(37)NHSO.sub.2 C.sub.16 H.sub.33(38)OSO.sub.2 C.sub.15 H.sub.33(39) ##STR162##(40) ##STR163##(41) ##STR164##(42)SO.sub.2 NHC.sub.16 H.sub.33(43) ##STR165##(44) ##STR166##(45) ##STR167##(46) ##STR168##(47) ##STR169##(48) ##STR170##(49) ##STR171##(50) ##STR172##(51) ##STR173##(52) ##STR174##(53) ##STR175##(54) ##STR176##(55) ##STR177##(56) ##STR178##(57)COOC.sub.2 H.sub.5(58) ##STR179##(59) ##STR180## The above-mentioned benzoylacetoanilido type yellow couplers in thepresent invention contain those described in U.S. Pat. Nos. 2,875,057,3,725,072 and 3,891,445 and Japanese Patent Publication No. 10783/1976and Japanese Patent O.P.I. Publication Nos. 73147/1983, 6341/1975,102636/1976, 115219/1977, 21448/1979, 95237/1981, 159163/1984,174838/1984, 206835/1984, 187560/1989, 207748/1989, 207749/1989,214848/1989, 227152/1989, 231050/1989, 295256/1989, 309057/1989,314240/1989, 316744/1989 and 316745/1989. They are synthesized according
In the present invention, 2 or more benzoylacetoanilido type yellow couplers may be used in combination. In addition, they may be used in combination with other yellow couplers.
When a yellow coupler is added in a light-sensitive material, various methods such as an oil-in-water emulsification dispersion method employing water-unsoluble high boiling organic solvent, an alkali dispersion method wherein said yellow coupler is added as an alkali solution, a latex dispersion method and a solid dispersion method wherein said yellow coupler is finely solidified to be added directly may be used according to the physical property (for example, solubility) of said yellow coupler.
The adding amount of yellow coupler is 1.0.times.10.sup.-3 mol to 1.0 mol, preferably 5.0.times.10.sup.-3 mol to 8.0.times.10.sup.-1 mol per mol of silver halide in total.
A benzoylacetoanilido type yellow coupler in the present invention is normally contained in the blue sensitive silver halide emulsion layer. However, if necessary, it may be contained in the green sensitive silver halide emulsion layer and the red sensitive silver halide emulsion layer other than the blue sensitive silver halide emulsion layer.
Next, we will explain cyan couplers represented by Formulas C-I or C-II. ##STR181## wherein R.sub.31 represents --CON(R.sub.34)(R.sub.35), --NHCOR.sub.34, --NHCOOR.sub.36, --NHSO.sub.2 R.sub.36, --NHCON(R.sub.34)(R.sub.35), --SO.sub.2 N(R.sub.34)(R.sub.35) or --NHSO.sub.2 N(R.sub.34)(R.sub.35); R.sub.32 represents a hydrogen atom or a substituent; R.sub.33 represents a substituent; X represents a hydrogen atom or a group split off by the reaction with an aromatic primary amine developer oxidation product; l represents 0 or 1; m represents 0 to 3 integers; R.sub.34 and R.sub.35 represent a hydrogen atom, an aromatic group, an aliphatic group or a heterocyclic group respectively; R.sub.36 represents an aromatic group, an aliphatic group or a heterocyclic group; When m is 2 or 3, each of R.sub.33 may be the same or different and they may be combined together to form a ring; In addition, R.sub.34 and R.sub.35, R.sub.32 and R.sub.33 and R.sub.32 and X may bind each other to form rings; However, l is 0, m is 0 and R.sub.31 is --CONHR.sub.37 ; R.sub.37 represents an aromatic group; Each group represented by the above-mentioned R.sub.32 to R.sub.37 contain those having a substituent.
Hereunder, we will explain the compounds represented by Formula C-I.
As R.sub.36, aliphatic groups having 1 to 30 carbons, aromatic groups having 6 to 30 carbons and heterocyclic groups having 1 to 30 carbons. As R.sub.34 and R.sub.35, a hydrogen atom and those cited as R.sub.36 preferably are preferable.
As R.sub.32, a hydrogen atom combining with NH directly or through CO or SO.sub.2, aliphatic groups having 1 to 30 carbons, aromatic groups having 6 to 30 carbons, heterocyclic group having 1 to 30 carbons, --OR.sub.38, --COR.sub.38, ##STR182## --CO.sub.2 R.sub.40, --SO.sub.2 R.sub.40, --PO(OR.sub.40).sub.2, --PO(R.sub.40).sub.2 or --SO.sub.2 OR.sub.40 (R.sub.38, R.sub.39 and R.sub.40 are the same as those defined in the above-mentioned R.sub.34, R.sub.35 and R.sub.36, and R.sub.38 and R.sub.39 may bind each other to form a heterocycle.) are preferable. Substituents represented by R.sub.32 contain those having a substituent additionally.
R.sub.37 is preferably an aromatic group having 6 to 30 carbons. R.sub.37 includes those having a substituent. As typical examples of substituents, a halogen atom, a hydroxy group, an amino group, a carboxyl group, a sulfo group, a cyano group, an aromatic group, a heterocyclic group, a carbonamide group, a sulfonamide group, a carbamoyl group, a sulfamoyl group, an ureido group, an acyl group, an acyloxy group, an aliphatic oxy group, an aromatic oxy group, an aliphatic thio group, an aromatic thio group, an aliphatic sulfonyl group, an aromatic sulfonyl group, a sulfamoylamino group, a nitro group, an imide group, an aliphatic group and an aliphatic oxycarbonyl group are cited. When it is substituted with plural substituents, plural substituents may bind each other to form a ring. For example, a dioxymethylene group is cited.
As typical examples of R.sub.33, a halogen atom, a hydroxy group, an amino group, a carboxyl group, a sulfo group, a cyano group, an aromatic group, a heterocyclic group, a carbonamide group, a sulfonamide group, a carbamoyl group, a sulfamoyl group, an ureido group, an acyl group, an acyloxy group, an aliphatic oxy group, an aromatic oxy group, an aliphatic thio group, an aromatic thio group, an aliphatic sulfonyl group, an aromatic sulfonyl group, a sulfamoylamino group, a nitro group and an imide group are cited. The carbon number contained in the above-mentioned R.sub.33 is preferably 0 to 33. As an example of ring R.sub.33 when m=2, a dioxymethylene group is cited.
When l is 1, R.sub.31 is particularly preferable to be --CONR.sub.34 R.sub.35. m is preferably 0. R.sub.32 is particularly preferable to be --COR.sub.38 which directly combine with NH, --COOR.sub.40, --SO.sub.2 R.sub.40, --CONR.sub.38 R.sub.39 and --SO.sub.2 NR.sub.38 R.sub.39 and furthermore preferable to be --COOR.sub.40 which directly combine with NH, --COR.sub.38 and --SO.sub.2 R.sub.40. The most preferable is --COOR.sub.40.
In addition, those forming a polymer not less than a dimer through R.sub.31 to R.sub.33 and X are contained in Formula C-I.
When l=m=0, it is preferable that X does not contain development-inhibitating portion.
Practical examples of cyan couplers represented by Formula C-I are described in Japanese Patent O.P.I. Publication Nos. 237448/1985, 153640/1986, 145557/1986, 85242/1987, 15529/1983, 117422/1975, 18315/1977, 90932/1977, 52423/1978, 48237/1979, 66129/1979, 32071/1980, 65957/1980, 105226/1980, 1938/1981, 12643/1981, 27147/1981, 126832/1981, 95346/1983, 123157/1987, 123158/1987, 93754/1988 and 208042/1988, RD-29,015 and U.S. Pat. No. 3,488,193. They can be synthesized by means of methods described therein.
Next, we will show typical examples of couplers represented by Formula C-I. However, the present invention is not limited thereto. ##STR183## wherein X' represents a hydrogen atom or a group capable of being split off by coupling with an aromatic primary amine color developing agent; R.sub.1 ' represents an aryl group or a heterocyclic group; R.sub.2 ' represents an aliphatic group or an aryl group; each group represented by R.sub.1 ' or R.sub.2 ' includes those having a substituent, and also includes those forming a polymer not less than a dimer by means of R.sub.1 ' or R.sub.2 '. sizes necessary for providing diffusion-proof property to couplers represented by Formula C-II and to dyes formed by and said couplers.
As aryl groups represented by R.sub.1 ' or R.sub.2 ', for example, a phenyl group and a naphtyl group are cited.
As substituents for groups represented by R.sub.1 ' or R.sub.2 ', for example, a nitro group, a cyano group, a halogen group, an alkyl group, an aryl group, an amino group, a hydroxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkoxysulfonyl group, an aryloxysulfonyl group, a carbamoyl group, a sulfamoyl group, an acyloxy group, a carbonamide group and a sulfonamide group are cited. The number of said substituent is preferably 1 to 5. When it is 2 or more, each substituent may be the same or different.
The preferable substituents to R.sub.1 ' are an alkylsulfonyl group, a cyano group and a halogen group.
As R.sub.2 ', the preferable is one illustrated by the following Formula CU-II. ##STR184## wherein J.sub.0 represents a hydrogen atom or a sulfur atom; k represents 0 to 4 integers; l.sub.6 represents 0 or 1; when k is 2 or more, R.sub.4 ' existing in quantity of 2 or more may be the same or different; R.sub.3 ' represents an alkylene group; R.sub.4 ' represents a substituent; as substituents represented by R.sub.4 ', for example, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a hydroxy group, an acyloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, a carboxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylthio group, an acyl group, an acylamino group, a sulfonamide group, a carbamoyl group and a sulfamoyl group are cited;
As a leaving group represented by X', for example, an aryloxy group, an alkoxy group, an acyloxy group, an arylthio group, an alkylthio group, a sulfonamide group and acid imide group wherein a halogen atom, an oxygen atom, a sulfur atom or a nitrogen atom is combined directly at the coupling position, are cited; as practical examples thereof, those described in U.S. Pat. Nos. 3,476,563 and 3,749,735, Japanese Patent O.P.I. Publication No. 37425/1972, Japanese Patent Publication No. 36894/1983 and Japanese Patent O.P.I. Publication Nos. 10135/1975, 117422/1975, 130441/1975, 108841/1976, 120334/1975, 18315/1977 and 105226/1978 are cited.
Next, we will show practical examples of cyan couplers represented by Formula C-II. However, they are not limited. ##STR185##
practical examples of phenol type couplers having an ureido group other than those exemplified above, for example, those described in Japanese Patent O.P.I. Publication Nos. 65134/1981, 204543/1982, 204544/1982, 204545/1982, 33249/1983, 33253/1983, 98731/1983, 118643/1983, 179838/1983, 187928/1983, 65844/1984, 179838/1983, 187928/1983, 65844/1984, 71051/1984, 86048/1984, 105644/1984, 111643/1984, 111644/1984, 131939/1984, 165058/1984, 177558/1984, 180559/1984, 198455/1984, 35731/1985, 37557/1985, 49335/1985, 49336/1985, 05533/1985, 91355/1985, 107649/1985, 107650/1985, 2757/1986, 18948/1986, 20039/1986, 42658/1986, 56348/1986, 65241/1986, 72244/1986, 72245/1986, 75350/1986, 75351/1986, 173467/1987, 33745/1988, 159848/1988, 161450/1988, 161451/1988, 172951/1989, 172952/1989, 253741/1989, 253742/1989, 253743/1989 and 254956 and RD-30,164 are cited.
When cyan couplers represented by Formula C-I and C-II are added to the light-sensitive material, various methods such as an oil-in-water emulsification dispersion method employing water-unsoluble high boiling organic solvent, an alkali dispersion method wherein cyan couplers are added in the form of alkali solution, a latex dispersion method and a solid dispersion method wherein cyan couplers are added in the form of fine solid may be used, depending on the physical properties of (e.g. solubility) of the cyan coupler.
The adding amount of coupler is normally in the range of 1.0.times.10.sup.-3 to 1 mol and preferably 5.0.times.10.sup.-3 mol to 8.0.times.10.sup.-1 mol per mol of silver halide.
Couplers represented by Formulas C-I or C-II may be used in combination with other cyan couplers. In that case, it is preferable that the percentage of coupler represented by Formula C-I or C-II is 10 mol % or more.
Next, we will explain a heterocyclic anti-foggant used in the present invention. A heterocyclic anti-foggant is a compound having a heterocycle used for the purpose of preventing fog or stabilizing photographic property in the course of manufacturing, preserving or photographic processing light-sensitive materials.
As heterocycles, for example, an imidazole, a triazole, a tetrazole, a thiadiazole, an oxazole, a pyridine, a pyrimidine, a benzoimidazole, a benzotriazole, an indazole, a benzothiazole, a benzooxazole and an azaindene are cited.
These heterocyclic nucleus can be substituted with a normal organic group. As organic groups, for example, an alkyl group, an alyl group, a heterocyclic group, an acyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, an amino group, an amide group, a carbamoyl group, an ureido group, a sulfo group, a sulfonamide group, a sulfamoyl group, an alkylthio group, a mercapto group, a hydroxyl group, a nitro group and a halogen atom are cited.
Hereunder, practical examples of heterocyclic type anti-foggants preferably used in the present invention are cited. However, the present invention is not limited thereto. ##STR186##
Some of the above-mentioned compounds are available on the market. However, they can be synthesized in accordance with methods described in U.S. Pat. No. 3,259,976, Japanese Patent O.P.I. Publication Nos. 14836/1982, 167023/1982, 9572/1983 and 68732/1984.
When an inhibitor in the present invention is contained in the silver halide emulsion layer of the invention, it may be added after being dissolved in water or an organic solvent capable of mixing freely with water (for example, methanol and ethanol). In addition, it may be used independently or in combination with an inhibitor in the present invention or with an anti-foggant not in the present invention.
The timing to add an inhibitor in the present invention is optional, either before the formation of silver halide grains, or in the course of forming silver halide grains, or in a period of time between the end of formation of silver halide grains and the start of chemical ripening, or in the course of chemical ripening, or at the end of chemical ripening or the time between the end of chemical ripening and the start of coating. Entire amount may be added at once, or it may be added separately on a basis of split adding.
With regard to the place to which an inhibitor is added, it may also be added directly to where a silver halide emulsion is prepared or to a silver halide emulsion coating solution. It may be added to a coating solution for the adjoining nonsensitive hydrophilic colloidal layer so that it may be contained in the silver halide emulsion layer in the present invention through diffusion in multi-layer coating.
There is no limit in adding amount. However, it is normal to be 1.times.10.sup.-6 to 1.times.10.sup.-1 mol and preferably 1.times.10.sup.-5 to 1.times.10.sup.-2 mol per mol of silver halide.
Silver halide (AgX) grains used in the present invention are grown through an acid method, a neutral method or an ammonium method that are conventional in the industry. After desalting process, they are prepared to be an AgX emulsion. The above-mentioned methods are described in publications such as The Theory of the Photographic Process written by Meeth published by MacMillan Co., Ltd.
When AgX grains are grown (including manufacturing seed grains), preparation methods to control pH, pAg and temperature in a reaction kettle and to insert gradually or simultaneously and mix silver ions and halide ions in accordance with the growth speed of AgX as described in Japanese Patent O.P.I. Publication No. 48521/1979 are employed. Finished emulsions provided with prescribed grain conditions are subjected to coagulation washing employing a polymer coagulation agent such as a coagulation agent with gelatin as a mother agent. AgX grains thus desalted are dispersed again in gelatin.
There is no limit in the composition of AgX grains. The ratio of composition of silver chloride, silver bromide and silver iodide is defined in accordance with the purpose. The composition of AgX may be uniform or laminated-type of core/shell composition. There is no limit in the average grain size of AgX and it may be different depending on the purpose. The preferable is 0.2 to 3.0 .mu.m.
With regard to layer structure of red sensitive, green sensitive and blue sensitive silver halide emulsion layers in the present invention, each layer may have one layer respectively, and it may be composed of 2 layers of a high sensitive layer and a low sensitive layer. In addition, it may further be composed of 3 layers of a high sensitive layer, a medium sensitive layer and a low sensitive layer. The preferable layer composition is a 2 or more layers composition.
The sum of silver amount of the above-mentioned light- sensitive layer is 0.2 to 10 g/m.sup.2, preferably 1 to 8 g/m.sup.2. In addition, the total thickness of dried coating is 8 to 30 .mu.m and preferably 10 to 25 .mu.m under the conditions of 23.degree. C. and 55% RH.
Silver halide emulsions used for the light-sensitive materials in the present invention can be chemically sensitized by the use of conventional methods, and they can be optically sensitized to a desired wavelength area employing a sensitizing dye.
Anti-foggants and stabilizers can be added to the silver halide emulsion. As a binder for the emulsion, it is preferable to employ gelatin.
Emulsion layers and other hydrophilic colloidal layers can be hardened. In addition, plasticizers, dispersants of water-unsoluble or refractory synthetic polymers (latex) can be contained.
A light-sensitive materials in the present invention may be any of color photographic light-sensitive materials including color negative film, color reversal film (incorporated and non-integrated), color paper, color positive film, color reversal paper, and color photographic light-sensitive materials for color diffusion transfer process and dye transfer process.
In emulsion layers of light-sensitive material for color photography, couplers are employed. In addition, colored couplers and competitive couplers that have effects of correction as well as compounds which release in coupling with oxidation product of color developer, the photographically useful fragments including development accelerators, bleaching accelerators, developers, silver halide solvents, toning agents, hardeners, foggants, anti-foggants, chemical sensitizers, spectral sensitizers and desensitizers may be used.
To the light-sensitive material, a formalin scavenger, a brightening agent, a matting agent, a lubricant, an image stabilizer, a surfactants, a color fog preventing agent, a development accelerator, a development retarder and a bleach accelerator can be added.
As a support, a paper laminated with polyethylene, a polyethylene terephthalate film, a baryta paper and a cellulose triacetate can be employed.
In order to obtain dye images employing a light-sensitive material in the present invention, conventional color photographic processing can be conducted after exposure to light.
EXAMPLES
Hereunder, we will explain practical examples of the present invention. However, the present invention is not limited thereto.
EXAMPLE 1
Hereunder, the adding amount of multi-layer color light-sensitive material represent ones per 1 m.sup.2 unless otherwise stated. In addition, silver halide and colloidal silver were represented in conversion of silver. Sensitizing dyes were represented by means of mol number per mol of silver.
On a triacetylcellulose film support, each layer having the following composition was formed from the side of the support in this order to prepare a multi-layer color light-sensitive material.
______________________________________First layer; Anti-halation layer (HC)______________________________________Black colloidal silver 0.15 gUV absorber (UV-1) 0.20 gColored cyan coupler (CC-1) 0.02 gHigh boiling solvent (Oil-1) 0.02 gHigh boiling solvent (Oil-2) 0.20 gGelatin 1.6 gSecond layer; Intermediate layer (IL-1)______________________________________Gelatin 1.3 gThird layer; Low speed red sensitive emulsion layer (R-L)______________________________________Silver iodobromide emulsion (Em-1) 0.4 gSilver iodobromide emulsion (Em-2) 0.3 gSensitizing dye (S-1) 3.2 .times. 10.sup.-4Sensitizing dye (S-2) 3.2 .times. 10.sup.-4Sensitizing dye (S-3) 0.2 .times. 10.sup.-4Cyan coupler (C-1) 0.50 gColored cyan coupler (CC-1) 0.07 gDIR compound (D-1) 0.006 gDIR compound (D-2) 0.01 gAdditive (SC-1) 0.003 gHigh boiling solvent (Oil-1) 0.5 gGelatin 1.0 gFourth layer; High speed red sensitive emulsion layer (R-H)______________________________________Silver iodobromide emulsion (Em-3) 0.9 gSensitizing dye (S-1) 1.7 .times. 10.sup.-4Sensitizing dye (S-2) 1.6 .times. 10.sup.-4Sensitizing dye (S-3) 0.1 .times. 10.sup.-4Cyan coupler (C-1) 0.23 gColored cyan coupler (CC-1) 0.03 gDIR compound (D-2) 0.02 gHigh boiling solvent (Oil-1) 0.25 gAdditive (SC-1) 0.003 gGelatin 1.0 gFifth layer; Intermediate layer (IL-2)______________________________________Gelatin 0.8 gSixth layer; Low speed green sensitive emulsion layer (G-L)______________________________________Silver iodobromide emulsion (Em-1) 1.0 gSilver iodobromide (Em-2) 0.2 gSensitizing dye (S-4) 6.7 .times. 10.sup.-4Sensitizing dye (S-5) 0.8 .times. 10.sup.-4Magenta coupler (M-1) 0.5 gMagenta coupler (M-2) 0.43 gColored magenta coupler (CM-1) 0.10 gDIR compound (D-3) 0.02 gHigh boiling solvent (Oil-2) 0.7 gAdditive (SC-1) 0.003 gGelatin 1.0 gSeventh layer; High speed green sensitive emulsion layer______________________________________(G-H)Silver iodobromide emulsion (Em-3) 0.9 gSensitizing dye (S-6) 1.1 .times. 10.sup.-4Sensitizing dye (S-7) 2.0 .times. 10.sup.-4Sensitizing dye (S-8) 0.3 .times. 10.sup.-4Magenta coupler (M-1) 0.03 gMagenta coupler (M-2) 0.13 gColored magenta coupler (CM-1) 0.04 gDIR compound (D-3) 0.004 gHigh boiling solvent (Oil-2) 0.35 gAdditive (SC-1) 0.003 gGelatin 1.0 gEighth layer; Intermediate layer (IL-3)______________________________________Gelatin 1.0 gNinth layer; Yellow filter layer (YC)______________________________________Yellow colloidal silver 0.1 gAdditive (HS-1) 0.07 gAdditive (HS-2) 0.07 gAdditive (SC-2) 0.12 gHigh boiling solvent (Oil-2) 0.15 gGelatin 1.0 gTenth layer; Low speed blue sensitive emulsion layer (B-L)______________________________________Silver iodobromide emulsion (Em-1) 0.25 gSilver iodobromide emulsion (Em-2) 0.25 gSensitizing dye (S-9) 5.8 .times. 10.sup.-4Yellow coupler (Y-1) 0.9 gDIR compound (D-1) 0.003 gDIR compound (D-2) 0.006 gHigh boiling solvent (Oil-2) 0.18 gAdditive (SC-1) 0.004 gGelatin 1.3 gEleventh layer; High speed blue sensitive emulsion layer______________________________________(B-H)Silver iodobromide emulsion (Em-4) 0.5 gSensitizing dye (S-10) 3.0 .times. 10.sup.-4Sensitizing dye (S-11) 1.2 .times. 10.sup.-4Yellow coupler (Y-1) 0.3 gHigh boiling solvent (Oil-2) 0.05 gAdditive (SC-1) 0.002 gGelatin 1.1 gTwelfth layer; First protective layer (PRO-1)______________________________________Silver iodobromide (average grain size is 0.08 .mu.m) 0.3 gUV absorber (UV-1) 0.07 gUV absorber (UV-2) 0.10 gHigh boiling solvent (Oil-1) 0.07 gHigh boiling solvent (Oil-3) 0.07 gFormalin scavenger (HS-1) 0.2 gFormalin scavenger (HS-2) 0.1 gGelatin 0.8 gThirteenth layer; Second protective layer (PRO-2)______________________________________Surfactant (SU-1) 0.004 gSurfactant (SU-2) 0.02 gAlkali-soluble matting agent 0.13 g(average grain size 2 .mu.m)Polymethylmethacrylate (average grain size 3 .mu.m) 0.02 gCyan dye (AI-1) 0.005 gMagenta dye (AI-2) 0.01 gLubricant (WAX-1) 0.04 gGelatin 0.5 g______________________________________
In addition to the above-mentioned components, Coating assistant SU-4, Dispersion assistant SU-3, Hardener H-1 and H-2, Antiseptic DI-1, Dye AI-1 and AI-2, Anti-foggant AF-1 and AF-2 were added appropriately to each layer, if necessary.
In addition, emulsions used in the above-mentioned samples were as follows. Each of them was a mono-dispersion emulsion having high iodide content therein.
Em-1: Average silver iodide content ratio 7.5 mol %
Silver bromo iodide
Average grain size 0.55 .mu.m
Form of grains Octahedron
Em-2: Average silver iodide content ratio 2.5 mol %
Silver bromo iodide
Average grain size 0.36 .mu.m
Form of grains Octahedron
Em-3: Average silver iodide content ratio 8.0 mol %
Silver bromo iodide
Average grain size 0.84 .mu.m
Form of grains Octahedron
Em-4: Average silver iodide content ratio 8.5 mol %
Silver bromo iodide
Form of grains Octahedron ##STR187##
Next, we prepared Sample 2 in the same manner as in the above-mentioned Sample 1 except that Eighth layer (Intermediate layer) in Sample 1 was removed.
Samples 3 to 9 were prepared in the same manner as in the above-mentioned Sample 2 except that 0.5 milli mol/m.sup.2 of the silver salt of dye in the present invention shown in Table 1 was added in place of yellow colloidal silver of Ninth layer (Yellow filter layer) in Sample 2.
Incidentally, the silver salt of dye was prepared by means of the following method and added as a dispersant.
In 1,000 ml of water, 0.1 mol of dye and 10.1 g (0.1 mol) of triethylamine were dissolved. While stirring, 200 ml of 1 mol/liter of silver nitrate aqueous solution was poured thereinto. Generated precipitation was filtrated, washed with water and dried to prepare silver salt of dye aimed.
Next, to 700 ml of 3% gelatin aqueous solution, 0.05 mol of the above-mentioned silver salt of dye and 30 ml of 6.7% solution of Surfactant Triton X-200 (produced by Rohm & Haas Co., Ltd.) were added. To the solution, 2 kg of glass beads (the diameter is 1 mm) were added and stirred for 8 hours by means of a stirred ball mill (Aquamizer QA-5, produced by Hosokawa Micron Co., Ltd.). Thus, the dispersion of silver salt of dye was obtained.
Samples 1 to 9 were subjected to white light exposure for sensitometry. Then, they were processed by means of the following processing steps. Thus, fogging in the green sensitive emulsion layer was measured.
Fogging was calculated from the increment of green light density obtained by subtracting the green light density on the unexposed portion of Sample 1 processed by the following processing steps from that on Sample 1 processed by bleaching step and thereafter without being subjected to color development in the following processing step
After Samples 1 to 9 were subjected to sine wave exposure by white light, they were processed by the following processing steps for obtaining sharpness.
The sharpness thus obtained was evaluated by MTF (Modulation Transfer Function) value of dye images, and it was indicated in terms of the relative value of MTF at 30 lines/mm (Sample 1 is defined to be 100). The results were shown in
______________________________________Processing steps (38.degree. C.)______________________________________Color development 3 min. and 15 sec.Bleaching 6 min. and 30 sec.Washing 3 min. and 15 sec.Fixing 6 min. and 30 sec.Washing 3 min. and 15 sec.Stabilizing 1 min. and 30 sec.Drying______________________________________
The composition of a processing solution used in each processing step is as follows:
______________________________________<Color developer>4-amino-3-methyl-N-ethyl-N-(.beta.-hydroxyethyl) 4.75 ganiline sulfateSodium unhydride sulfite 4.25 gHydroxylamine sulfate 2.0 gPotassium unhydride carbonate 37.5 gSodium bromide 1.3 gPotassium iodide 1.0 mgTrisodium nitryloacetate (monohydrate) 2.5 gPotassium hydroxide 1.0 gAdd water to make 1 l.<Bleacher>Ammonium ferric ethylenediaminetetraacetate 100 gDiammonium ethylenediaminetetraacetate 10.0 gAmmonium bromide 150 gGlacial acetic acid 10 mlAdd water to make l l, and adjust pH to 6.0 withaqueous ammonium.<Fixer>Ammonium thiosulfate 175.0 gSodium unhydride sulfite 8.5 gSodium metasulfite 2.3 gAdd water to make 1 l, and adjust pH to 6.0 with aceticacid.<Stabilizer>Formalin (37% aqueous solution) 1.5 mlKonidax (produced by Konica Corporation) 7.5 mlAdd water to make 1 l.______________________________________
TABLE 1______________________________________Sample Silver salt of dye Fogging Sharpness Note______________________________________1 -- 0.12 100 Comparative2 -- 0.24 105 Comparative3 I-1 0.13 104 Invention4 I-12 0.12 104 Invention5 II-3 0.13 105 Invention6 III-2 0.13 106 Invention7 IV-6 0.12 105 Invention8 I'-1 0.12 106 Invention9 II'-3 0.12 105 Invention______________________________________
As is apparent from Table 1, though the improvement in sharpness was observed on Sample 2 having no Eighth layer (Intermediate layer), increase of fogging in the green sensitive layer was remarkable. Therefore, it is impossible to put this to practical use. On the other hand, improvement in sharpness with the increase of fogging in the green sensitive layer was observed Samples on 3 to 9 wherein silver salt of dye in the present invention was used in place of yellow colloidal silver in Ninth layer (Yellow filter layer).
EXAMPLE 2
Sample 10 was prepared in the same manner as in the above-mentioned Sample 1 except that Second layer (Intermediate layer) in Sample 1 of Example 1 was removed.
Samples 11 to 19 were prepared in the same manner as in the above-mentioned Sample 10 except that 0.75 milli mol/m.sup.2 of the silver salt of dye in the present invention shown in Table 2 was added in place of black colloidal silver in First layer (Anti-halation layer) in Sample 10.
After Samples 10 to 19 were subjected to sensitometric exposure to white light, they were processed by the same processing steps as Example 1 for checking fogging of the red sensitive emulsion layer.
In addition, after Samples 10 to 19 were subjected to sine wave exposure to white light, they were processed by the same processing steps as the above-mentioned Example 1 for obtaining sharpness.
Sharpness thus obtained was evaluated by MTF (Modulation Transfer Function) value of dye images, and it was indicated in terms of the relative value of MTF at 30 lines/mm (Sample 1 is defined to be 100). The results are shown in Table 2.
TABLE 2______________________________________Sample Silver salt of dye Fogging Sharpness Note______________________________________10 -- 0.23 104 Comparative11 I-2 0.14 108 Invention12 I-15 0.13 107 Invention13 II-4 0.13 108 Invention14 IV-5 0.12 106 Invention15 I'-3 0.14 108 Invention16 II'-7 0.13 108 Invention17 III'-7 0.12 107 Invention18 VI-3 0.14 108 Invention19 VI-13 0.13 108 Invention______________________________________
As is apparent from Table 2, though improvement in sharpness was observed in Sample 10 wherein Second layer (Intermediate layer) was removed, fogging in the red sensitive layer was remarkable. Therefore, it is impossible to put this to practical use. On the other hand, improvement in sharpness with no increase in fogging on the red sensitive layer was observed on Samples 11 to 19 wherein the silver salt of dye in the present invention was used in place of black colloidal silver in First layer (Anti-halation layer).
EXAMPLE 3
Sample 20 was prepared in the same manner as the above-mentioned Sample 1 except that Second layer (Intermediate layer) and Eighth layer (Intermediate layer) of Sample 1 in Example 1 were removed.
Samples 21 to 29 were prepared by replacing black colloidal silver of First layer (Anti-halation layer) in the above-mentioned Sample 20 with 0.75 milli mol/m.sup.2 of silver salt of dye of the present invention shown in Table 3, by replacing yellow colloidal silver of Ninth layer (Yellow filter layer) with 0.5 milli mol/m.sup.2 of silver salt of dye of the present invention shown in Table 3 and by replacing Yellow coupler (Y-1) of Tenth layer and Eleventh layer with the same mol of couplers shown in Table 3.
After Samples 20 to 29 were subjected to sensitometric exposure to white light, they were processed through the same processing steps as the above-mentioned Example 1. Thus, sensitivity and fogging of the blue sensitive emulsion layer were calculated. Sensitivities are represented with relative values for 100 that is the sensitivity of Sample 20 was 100.
In addition, after Samples 20 to 29 were subjected to sine wave exposure to white light, they were processed under the same processing step as the above-mentioned Example 1 for obtaining sharpness.
Sharpness thus obtained was evaluated by means of MTF (Modulation Transfer Function) value of dye images and represented with the relative value of MTF (Sample 1 is defined to be 100) at 30 lines/mm.
The results are shown correctively in Table 3.
TABLE 3__________________________________________________________________________Dye silver salt YellowSample 1st layer 9th layer Coupler Sensitivity Fogging Sharpness NOTE__________________________________________________________________________20 -- -- Y-1 100 0.20 106 Comparative21 I-2 I-1 YB-15 123 0.12 108 Invention22 I-15 I-12 YB-16 125 0.11 109 Invention23 IV-5 III-2 YB-15 122 0.12 108 Invention24 II'-7 I'-1 YB-16 124 0.10 108 Invention25 I-2 II'-3 YB-16 123 0.11 107 Invention26 III'-7 V-4 YB-15 125 0.10 109 Invention27 VI-3 I-12 YB-23 122 0.12 108 Invention28 VI-13 VI-17 YB-29 124 0.11 109 Invention29 VI-29 I-1 YB-15 122 0.12 107 Invention__________________________________________________________________________
As is apparent from Table 3, Sample 20 wherein Second layer (Intermediate layer) and Eighth layer (Intermediate layer) was removed showed remarkable increase of fog on the blue sensitive layer though improvement in sharpness was observed. Therefore, it is impossible to put this to practical use. On the other hand, improvement in sharpness was observed in Samples 21 to 29 wherein the silver salt of dye of the present invention was used in place of black colloidal silver of First layer (Anti-halation layer) and yellow colloidal silver of ninth layer (Yellow filter layer) and benzoyl acetoanilido type yellow coupler of the present invention was used for the blue sensitive emulsion layer. In addition, the increase in the sensitivity of the blue sensitive layer was observed too.
EXAMPLE 4
Samples 30 to 39 were prepared by replacing black colloidal silver of First layer (Anti-halation layer) of Sample 20 in Example 1 with 0.75 milli mol/m.sup.2 of silver salt of dye of the present invention shown in Table 4, by replacing yellow colloidal silver of Ninth layer (Yellow filter layer) with 0.5 milli mol/m.sup.2 of the silver salt of dye shown in Table 4 and by replacing the cyan coupler (C-1) in Third layer and Fourth layer with the same mol of coupler shown in Table 4.
After Samples 20 and 30 to 39 were subjected to sensitometric exposure to white light, they were processed under the same processing step as the above-mentioned Example 1. Thus, the sensitivity and the fogging of red sensitive emulsion layer were calculated. The sensitivities are indicated with relative values for 100 that is the sensitivity of Sample 20 to be 100.
In addition, after Samples 20 and 30 to 39 were subjected to sine wave exposure to white light, they were processed under the above-mentioned processing step to calculate sharpness.
Sharpness thus obtained was evaluated by means of MTF (Modulation Transfer Function) value of dye images, and it is indicated with the relative value of MTF (when Sample 1 was defined to be 100) at 30 lines/mm. The results were shown in Table 4.
TABLE 4__________________________________________________________________________Dye silver salt YellowSample 1st layer 9th layer Coupler Sensitivity Fogging Sharpness NOTE__________________________________________________________________________20 -- -- C-1 100 0.23 106 Comparative30 I-2 I-1 CU-4 119 0.12 109 Invention31 I-15 I-12 CU-1 118 0.11 110 Invention32 II-4 II-3 CU-6 122 0.13 110 Invention33 IV-5 III-2 CU-2 120 0.12 109 Invention34 I-2 IV-6 CU-13 119 0.11 111 Invention35 I'-3 I'-1 CU-22 121 0.13 110 Invention36 II'-7 II'-3 C-I-20 122 0.11 110 Invention37 III'-7 V-4 C-I-29 120 0.13 109 Invention38 VI-13 VI-25 C-I-20 123 0.12 110 Invention39 VI-16 I-1 C-I-20 123 0.12 109 Invention__________________________________________________________________________
As is apparent from Table 4, Sample 20 wherein Second layer (Intermediate layer) and Eighth layer (Intermediate layer) were removed showed remarkable increase of fogging in the blue sensitive layer though the improvement in sharpness was observed. Therefore, it cannot be put to practical use. On the other hand, improvement in sharpness was observed on Samples 30 to 39 wherein the silver salt of dye of the present invention was used in place of the black colloidal silver of First layer (Anti-halation layer) and the yellow colloidal silver of Ninth layer (Yellow filter layer) and the cyan couplers represented by C-I or C-II of the present invention were used for the red sensitive emulsion layer without an increase of the fogging of the red sensitive layer. In addition, increase of the sensitivity in the red sensitive layer was observed, too.
EXAMPLE 5
Samples 40 to 49 were prepared by adding 0.75 milli mol/m.sup.2 of the silver salt of dye of the present invention shown in Table 5 in place of the black colloidal silver of First layer (Anti-halation layer) of Sample 20 in Example 3, by adding 0.5 milli mol/m.sup.2 of the silver salt of dye of the present invention shown in Table 5 in place of the yellow colloidal silver of Ninth layer (Yellow filter layer) and by adding 0.1 milli mol of the inhibitor of the present invention shown in Table 5 per mol of silver halide in each silver halide emulsion layer.
After Samples 20 and 40 to 49 were subjected to sensitometric exposure to white light, they were processed by the processing steps identical to those in the above-mentioned Example 1. Thus, fogging of each sensitive emulsion layer was calculated.
In addition, by leaving Samples 20 and 40 to 49 for 3 days under the conditions of the temperature of 55.degree. C. and the relative humidity of 80% , samples subjected to accelerated aging were prepared. After the obtained samples were subjected to sensitometric exposure to white light, they were processed through the processing steps identical to those in the above-mentioned Example 1. Thus, fogging of each light-sensitive emulsion layer was obtained.
In addition, the samples 20 and 40 to 49 were subjected to sine wave exposure to white light, they were processed through the above-mentioned processing steps. Thus, their sharpness was obtained.
Sharpness thus obtained was evaluated by MTF (Modulation Transfer Function) value of dye images and it is indicated with the relative value of MTF at 30 lines/mm (Sample 1 was defined to be 100.). The results are collectively shown in Table 5.
TABLE 5__________________________________________________________________________ Fogging of each Fogging afterSample Dye silver salt light-sensitive layer torture testNo. 1st layer 9th layer Inhibitor B G R B G R Sharpness Note__________________________________________________________________________20 -- -- -- 0.20 0.23 0.23 0.35 0.34 0.33 106 Comparative40 I-2 I-1 36 0.08 0.09 0.08 0.12 0.12 0.14 109 Invention41 I-15 I-12 38 0.08 0.08 0.09 0.13 0.12 0.15 110 Invention42 II-4 II-3 53 0.09 0.09 0.09 0.14 0.14 0.15 110 Invention43 IV-5 III-2 63 0.08 0.08 0.09 0.12 0.12 0.14 109 Invention44 I-2 IV-6 36 0.10 0.09 0.09 0.13 0.14 0.15 111 Invention45 I'-3 I'-1 36 0.08 0.09 0.09 0.12 0.13 0.14 110 Invention46 II'-7 II'-3 36 0.08 0.08 0.08 0.12 0.13 0.14 110 Invention47 III'-7 V-4 36 0.09 0.09 0.08 0.13 0.13 0.03 109 Invention48 VI-13 VI-25 68 0.08 0.08 0.09 0.12 0.12 0.13 110 Invention49 VI-16 I-1 86 0.09 0.09 0.09 0.12 0.13 0.13 109 Invention__________________________________________________________________________
As is apparent from Table 5, Sample 20 wherein Second layer (Intermediate layer) and Eighth layer (Intermediate layer) were removed showed remarkable increase of fogging in each light-sensitive layer and the remarkable increase of fogging after subjecting to torture test was. Therefore, it could not be put into practice. On the other hand, Samples 40 to 49 wherein the black colloidal silver of first layer (Anti-halation layer) and the yellow colloidal silver of Ninth layer (Yellow filter layer) were replaced with the silver salt of dye of the present invention and the inhibitor of the present invention was added to each light-sensitive layer showed improvement in sharpness without increasing fogging of each light-sensitive layer. In addition, increase of fogging in the sample subjected to torture test was reduced.
The object of the present invention is to provide a silver halide color photographic light-sensitive material having high sharpness, high speed, less fogging and excellent raw stock stability, and the constitution of the present invention is a silver halide color photographic light-sensitive material having a support provided thereon a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer wherein a yellow filter layer containing a silver salt of dye and/or a anti-halation layer containing silver salt of dye are provided.

Number	Name	Date
2611696	Keyes et al.	Sep 1952
2719088	Herz et al.	Sep 1955
3471293	Ohlschlager et al.	Oct 1969
3480436	Wilson	Nov 1969
5019490	Kobayashi et al.	May 1991

Number	Date	Country
663801	Sep 1965	BEX
1077049	Jul 1967	GBX

Silver halide color photographic light-sensitive material

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