Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Reexamination Certificate
1998-11-09
2001-01-09
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
C430S557000, C430S546000, C430S627000, C430S630000, C430S631000
Reexamination Certificate
active
06171774
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a silver halide photographic light-sensitive material, and particularly relates to that having an excellent image storage ability and stably giving a high maximum density and a suitable whiteness of the background of image.
Silver halide photographic light-sensitive materials, particularly silver halide color photographic materials are usually used since those have a high sensitivity and an excellent gradation reproducibility.
Recently, in the field of photography, a demand to reduce the amount of processing solution or a replenishing solution to be used for processing a silver halide photographic material is strongly raised from the viewpoint of environmental suitability. Accordingly, a silver halide photographic material and a processing method are required, by which a high quality of image can be obtained even when the light-sensitive material is processed by such the processing condition.
Besides, an image formed on a silver halide photographic material is desired to maintain a high quality after a prolonged storage, and it has been a long standing thema in the field of photography to raise the light-fastness of image.
It has been tried to raise the concentration of color developing agent in the processing solution for reducing the amount of the processing solution or the replenishing solution. However, the simple increasing of the processing solution concentration causes a problem of an unnecessary color formation in the unexposed area or an increasing in fogging.
On the other hand, an addition of an antioxidant or a high molecular weight substance has been tried to raise the light-fastness of image formed in the silver halide photographic material. In such the case, the maximum density of the image tends to be reduced when the object is attained by the simply use of the additives. Moreover, the suitable image quality cannot be stably obtained when the light-sensitive material is processed by the foregoing processing with a reduced amount of the processing solution or the replenishing solution.
SUMMARY OF THE INVENTION
The object of the invention is to provide a silver halide photographic light-sensitive material by which an image having a high light-fastness and a high quality image having a lowered fogging can be stably obtained with a high color forming efficiency even if conditions of the processing solution is variously changed, and the fog increasing in the course of storage of the raw light-sensitive material is sufficiently inhibited.
The above object of the invention is attained by a silver halide photographic light sensitive material comprising a support having thereon a yellow dye image-forming light-sensitive silver halide emulsion layer, a magenta dye image-forming light-sensitive silver halide emulsion layer, and a cyan dye image-forming light-sensitive silver halide emulsion layer and optionally a light-insensitive layer, in which said yellow image-forming light-sensitive silver halide emulsion layer contains a yellow dye-forming coupler represented by Formula I and an organic solvent-soluble polymer, and the light-sensitive or light-insensitive layer adjoined with the yellow image forming silver halide emulsion layer contains a polymer which have a constituting unit represented by Formula II;
wherein R
A
is an alkyl group or a cycloalkyl group, R
B
is a halogen atom or an alkoxy group, R
C
is a group capable of being a substituent of the benzene group, m is an integer of from 0 to 40, when m is 2 or more the plural R
c
,s may be the same or different from each other, and Z is a group capable of being released upon reaction with the oxidation product of a color developing agent,
DETAILED DESCRIPTION OF THE INVENTION
The silver halide photographic light-sensitive material of the invention, herein after referred to the light-sensitive material of the invention, contains a yellow dye-forming coupler represented by Formula I, hereinafter referred to a yellow dye-forming coupler of the invention.
In the light-sensitive material of the invention contains a yellow dye-forming coupler represented by Formula I in the yellow dye image forming emulsion layer thereof.
In Formula I, the alkyl group represented by R
A
includes a straight- and a branched-chain alkyl group such as a methyl group, an ethyl group, an i-propyl group, a t-butyl group, a dodecyl group and a 1-hexyl group, and the cycloalkyl group represented by R
A
includes a cyclopropyl group, a cyclohexyl group and an adamantyl group.
The alkyl group and the cycloalkyl group each may have a substituent. Examples of the substituent include the followings: a halogen atom such as a chlorine atom and a bromide atom, a cyano group, a nitro group, an aryl group such as a phenyl group, p-t-octylphenyl group and a 2,4-di-t-amylphenyl group, a hydroxyl group, an alkoxy group such as a methoxy group and a 2-ethoxyethoxy group, an aryloxy group such as a phenoxy group, a 2,4-di-t-amylphenoxy group and a 4-(4-hydroxyphenyl-sulfonyl)phenoxy group, a heterocyclic oxy group such as a 4-pyridyloxy group and a 2-hexahydropyranyloxy group, a carbonyloxy group, for example, an alkylcarbonyloxy group such as an acetyloxy group and a pivaloyloxy group, and an arylcarbonyloxy group such as a benzoyloxy group, a sulfonyloxy group, for example, an alkylsulfonyl group such as a methanesulfonyloxy group, a trifluoromethanesulfonyloxy group and an n-dodecanesulfonyloxy group, and an arylsulfonyloxy group such as benzenesulfonyloxy group and a p-toluene-sulfonyloxy group, a carbonyl group, for example an alkylcarbonyl group such as an acetyl group and a pivaloyl group, and an arylcarbonyl group such as a benzoyl group and 3,5-di-t-butyl-4-hydroxybenzoyl group, an oxycarbonyl group, for example, an alkoxycarbonyl group such as methoxycarbonyl group and a cyclohexyloxycarbonyl group and a and an n-dodecyloxycarbonyl group, and an aryloxycarbonyl group such as phenoxycarbonyl group, a 2,4-di-t-amylphenoxycarbonyl group and a 1-naphthyloxycarbonyl group, and a heterocyclic oxycarbonyl group such as 2-pyridyloxycarbonyl group and 1-phenylpyrazolyl-5-oxycarbonyl group, a carbamoyl group, for example, an alkylcarbonyl group such as a dimethylcarbamoyl group and a 4-(2,4-di-t-amylphenoxy)butylaminocarbamoyl group, and an arylcarbamoyl group such as a phenylcarbamoyl group and a 1-naphthyl-carbamoyl group, a sulfonyl group, for example, an alkylsulfonyl group such as a methanesulfonyl group and a trifluoromethanesulfonyl group, and an arylsulfonyl group such as a p-toluenesulfonyl group, a sulfamoyl group, for example, an alkylsulfamoyl group such as a dimethylsulfamoyl group and a 4-(2,4-di-t-amylphenoxy)butylaminosulfonyl group, and an arylsulfamoyl group such as phenylsulfamoyl group, an amino group, for example, an alkylamino group such as a dimethylamino group, a cyclohexylamino group and an n-dodecylamino group, and an arylamino group such as an anilino group and a p-t-octylanilino group, a sulfonylamino group, for example, an alkylsulfonylamino group such as a methanesulfonylamino group, a heptafluoropropanesulfonylamino group and an n-hexadecylsulfonylamino group, and an arylsulfonylamino group such as a p-toluenesulfonylamino group and a pentafluorobenzenesulfonylamino group, an acylamino group, for example, an alkylcarbonylamino group such as an acetylamino group and a myristoylamino group, and an arylcarbonylamino group such as a benzoylamino group, an alkylthio group such as a methylthio group and a t-octylthio group, an arylthio group such as a phenylthio group, and a heterocyclic thio group such as a 1-phenyltetrazole-5-thio group and a 5-methyl-1,3,4-oxathiadiazole-2-thio group.
As the group represented by R
A
, a branched-alkyl group is preferable and a t-butyl group is particularly preferable.
As the alkoxy group represented by R
B
, a straight- and branched-alkoxyl group such as a methoxy group, an ethoxy group, a 1-methylethyloxy group, a t-butyloxy group a dodecyloxy group and a 1-hexylnonyloxy group are suitable. Among them, a methoxy group is preferred.
As the haloge
Hiyama Kunimasa
Murai Kazuhiro
Bierman Jordan B.
Bierman, Muserlian and Lucas
Konica Corporation
Letscher Geraldine
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