Silver halide color photographic light-sensitive material

Details Silver halide color photographic light-sensitive material Silver halide color photographic light-sensitive material

1998-01-20

2001-04-03

Baxter, Janet (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

C430S567000, C430S030000, C430S517000, C430S522000, C430S507000, C430S944000

Reexamination Certificate

active

06210871

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a silver halide color photographic light-sensitive material. More particularly, it relates to a silver halide color photographic light-sensitive material which has a small a change of photographic performance during running processing, which is excellent in sharpness and whose feedability in, for example, a camera or an automatic developer is improved.
It is strongly demanded that the silver halide color photographic light-sensitive material (hereinafter also referred to simply as “light-sensitive material”), especially, that for photography not only have an excellent image quality but also constantly exhibit stable photographic performance when subjected to, for example, color development.
Japanese Patent Application KOKAI Publication No. (hereinafter referred to as JP-A-) 4-273900 proposed a light-sensitive material containing a developer-deactivating type timing DIR compound, in which the total coating amount of silver ranges from 1.0 to 4.0 g/m
2
, as means for constantly obtaining stable photographic performance when subjected to color development.
Although the use of this light-sensitive material significantly reduces the change of photographic performance even in low replenishing processing, further improvement has been desired. In particular, when a running processing is carried out for a prolonged period of time, photographic performance changes, especially, performance changes of yellow, magenta and cyan dye images occur with different intensities to thereby invite a collapse of color balance, so that an improvement has been desired.
JP-A-8-179460 proposed a light-sensitive material wherein the total coating amount of silver is 3.2 g/m
2
or less in terms of metallic silver and which has a specified infrared reflectance at 750 nm as means for improving the feeding performance (hereinafter referred to as feedability) of the light-sensitive material in cameras, sharpness and performance to desilver (hereinafter referred to as desilverability).
Although the use of this light-sensitive material is effective in improving the feedability of the light-sensitive material in cameras, sharpness and desilverability, further improvement has been desired in respect of the photographic property changes during the running processing. Moreover, the failure to conduct accurate feeding occurred although in extremely low frequency, depending on the type of employed camera, so that further improvement has been desired.
For example, increasing the coating amount of black colloidal silver in the antihalation layer can be thought of for increasing the infrared transmission density at 950 nm of the light-sensitive material. However, when the coating amount of black colloidal silver of the antihalation layer is increased, it occurs that photographing of a date and time by an exposure from a side of the support opposite the side coated with the silver halide emulsion layer, i.e., from a back side, is difficult, so that an improvement has been desired.
JP-A-62-299959 proposed the addition of an infrared absorbing component to at least one layer disposed on a side of a support opposite the side coated with an emulsion layer.
However, this proposed method is likely to cause extreme changes of photographic properties while the light-sensitive material is stored in the state of being rolled in a patrone, so that an improvement has been desired.
Moreover, JP-A-8-95198 proposed a method comprising detecting with the use of a light receiving device a decrease of the quantity of infrared rays transmitted through a light-sensitive material. In JP-A-8-95198, it is disclosed that the coating amount of silver of 4.0 g/m
2
or less, the light-sensitive material having a layer containing a metal oxide and capable of reflecting infrared rays and transmitting visible light to thereby determine the presence of a silver halide light-sensitive material.
Although this method enables easily detecting the light-sensitive material, an improvement of the method has been desired in respect of the storage of the light-sensitive material.
BRIEF SUMMARY OF THE INVENTION
Therefore, an object of the present invention is to provide a silver halide color photographic light-sensitive material which is small in changes of photographic performance in a running processing, which is improved in the feedability in, for example, an automatic developing machine and which is excellent in the storage stability.
It is another object of the present invention to provide a photographic material on which information such as date and time can be recorded clearly.
DETAILED DESCRIPTION OF THE INVENTION
The inventors have found that when the coating amount of silver is small as described in JP-A-4-273900, continuation of a running processing by means of an automatic developing machine leads to a failure of the automatic developing machine in detecting the light-sensitive material to thereby disenable appropriate replenishing so as to bring about changes of photographic properties.
The following silver halide color photographic light-sensitive material has solved this problem.
That is, according to the present invention, there is provided a silver halide color photographic light-sensitive material comprising a support and, superimposed thereon, at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one blue-sensitive silver halide emulsion layer and at least one nonlight-sensitive hydrophilic colloid layer containing black colloidal silver, said light-sensitive material contains a dye whose wavelength at which an absorption maximum is given from 700 to 1100 nm is in an infrared region of 700 to 1100 nm, the coated amount of silver halide and colloidal silver of said light-sensitive material is 3.2 g/m
2
or less in terms of silver, and -;said light-sensitive material has a transmission density of 1.7 or more at 950 nm.
Hereinafter the dye used in the light-sensitive material of the invention is also referred to as an infrared absorbing dye.
The infrared absorbing dye has an absorption characteristics that the wavelength at which a maximum absorption (hereinafter also referred to as &lgr;max) is given, exists in the range of 700 nm to 1100 nm when the absorption of the dye is measured from 400 nm to 1100 nm. This absorption characteristic refers to that exhibited by the infrared absorbing dye in the state that the dye is present in the light-sensitive material. The state of the dye in the light-sensitive material may be a solution state, an emulsified dispersion state or a solid dispersion state. The absorption at the wavelength from 400 nm to 1100 nm is one fifth or less of the maximum absorption.
The infrared absorbing dye preferably used in the present invention is a cyanine dye represented by the following formula (I).
In the formula (I), Z
1
and Z
2
each independently represent nonmetallic atom groups forming five-membered or six-membered nitrogen-containing heterocycles which may undergo ring condensation. Examples of the nitrogen-containing heterocycles and condensed rings therefrom include an oxazole ring, an isoxazole ring, a benzoxazole ring, a naphthoxazole ring, a thiazole ring, a benzothiazole ring, a naphthothiazole ring, an indolenine ring, a benzindolenine ring, an imidazole ring, a benzimidazole ring, a naphthimidazole ring, a quinoline ring, a pyridine ring, a pyrrolopyridine ring, a furopyrrole ring, an indolizine ring, an imidazoquinoxaline ring and a quinoxaline ring. Five-membered nitrogen-containing heterocycles are preferred to six-membered nitrogen-containing heterocycles. Five-membered nitrogen-containing heterocycles fused with a benzene or naphthalene ring are more preferred, and indolenine and benzindolenine rings are most preferred.
Each nitrogen-containing heterocycle or ring fused therewith may have one or more substituents. Examples of the substibuents include alkyl groups having 1 to 10 carbon atoms, preferably, 1 to 6 carbon atoms (including linear, branched, cyclic, substituted

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