Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Reexamination Certificate
2000-12-28
2003-05-13
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
C430S567000, C430S543000, C430S604000, C430S605000
Reexamination Certificate
active
06562556
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a silver halide color photographic light-sensitive material.
The present invention particularly relates to a silver halide color photographic light-sensitive material that excels in both rapid processing suitability and shading representation at the high density portion of an image obtained by a scanning exposure, and that is also suitable for a conventional “surface” exposure (a conventional flooding exposure).
The present invention also relates to a silver halide color photographic light-sensitive material that excels in rapid processing suitability; that restrains the change in color balance at the peripheral portion of a color photograph, and also provides high maximum colored density, upon a scanning exposure; and that is suitable for a surface exposure.
BACKGROUND OF THE INVENTION
Current widespread color photographs have become more rapidly and readily available by the improvement of light-sensitive materials and the progress of development processing technique. Particularly in the field of color printing, production of color photographs has been made in accordance with various ends, in lieu of such development as a centralization processing system, owing to production facilities having both a high-speed printer, for mass production, and a large-sized processing apparatus, or the like, which are called “color labs,” and a dispersion processing system using a small-sized printer processor, which is called a “minilab” and is located in the front of a shop.
As to rapid processing, U.S. Pat. No. 4,840,878 discloses a technique of processing a color photographic light-sensitive material comprising a silver halide emulsion having a high silver chloride content, with a color-developing solution containing substantially neither sulfite ion nor benzyl alcohol. Actually, such a light-sensitive material comprising a silver halide emulsion having a high silver chloride content, and a processing method thereof according to the above-described technique, have been put to practical use. Consequently, color prints have become more rapidly and readily available.
Recently, in addition to printing by a conventional surface exposure, it has been practiced to provide a color print obtained from digital image data by reading a negative or positive image with a scanner. Digitalization of an image enables correction, such as gradation retouching, dodging (a shutting light method), and letter-printing at the time of producing a postcard, on the monitor of a computer, without preparing a lith film, and therefore digitalization contributes to improving both the productivity and quality of a color print. Further, digitalization of an image enables receiving image data via the Internet, and producing a color print using the same. The foregoing method is considered to become generalized in the future. In order to obtain a color print from digital image data, use can be made of various kinds of a scanning exposure apparatus of the type in which one pixel by one pixel is subjected to a scanning exposure to light from a light source, such as a cathode ray (CRT) and a laser, in place of a surface exposure through an ordinary negative film.
As mentioned above, as to technique to prepare a color print, printings by both conventional surface exposure and scanning exposure have been practiced, and color print materials for each exclusive use have been put to practical use. Therefore, at the site of color print preparation, two kinds of color print materials are necessary. However, if these different printing techniques could be handled with only a single kind of printing material, it would be convenient. As a result, it is desired to provide a color print material having both surface exposure and scanning exposure suitability.
As to a light-sensitive material having both surface exposure and scanning exposure suitability, U.S. Pat. No. 5,869,228 discloses a technique in which iron ions are locally contained in the surface region of high silver chloride emulsion grains, and further an o-hydroquinone-series compound or p-hydroquinone-series compound is incorporated in a light-sensitive material, whereby photographic properties obtained by a scanning exposure becomes equal to those obtained by a surface exposure. The present inventor studied the light-sensitive material manufactured by applying the foregoing technique. As a result, it was found that, with respect to a color print obtained by a scanning exposure, the problem arose that the shading at the high density portion became unnaturally great. It is possible to correct only the digital data of the shading portion, since the scanning exposure data are digitalized. However, the correction takes so much time and labor that ordinary color labs cannot accept it, in actual fact. Further, as to the light-sensitive material manufactured by applying the technique of the above-mentioned U.S. Pat. No. 5,869,228, it was found that, with respect to a color print obtained by a scanning exposure, another problem arose that the change in color balance became larger at the peripheral portion {for example, as to a one-sixth size (20.3 cm×25.4 cm), a region of from the end up to about 5 cm}. It is possible to restrain the change in color balance by correcting only digital data at the peripheral portion, since the scanning exposure data are digitalized. However, because the degree of change in color balance differs from one scanning exposure apparatus to another, correction is necessary for each apparatus, and this takes much time and labor. Therefore, the correction of digital data was difficult, in actual fact.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a silver halide color photographic light-sensitive material that excels in both rapid processing suitability and shading representation at the high density portion of an image in a color print obtained by a scanning exposure, and that is also suitable for a conventional surface exposure.
Another object of the present invention is to provide a silver halide color photographic light-sensitive material that excels in rapid processing suitability; that restrains the change in color balance at the peripheral portion of a color photograph, and also provides high maximum colored density, upon a scanning exposure; and that is also suitable for a surface exposure.
Other and further objects, features, and advantages of the invention will appear more fully from the following description.
DETAILED DESCRIPTION OF THE INVENTION
As a result of an intensive study, the present inventor has found that the above-described objects of the present invention can be accomplished by the following means:
(1) A silver halide color photographic light-sensitive material, comprising at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one red-sensitive silver halide emulsion layer containing a cyan coupler, provided on a support,
wherein at least one layer of said light-sensitive silver halide emulsion layers contains a silver halide emulsion comprising silver halide grains having a silver chloride content of 95 mol % or more, and
wherein, with respect to each of characteristic curves obtained by a color development of said light-sensitive material after exposure, the following relationship is satisfied:
0.65≦
D
1′/
D
1≦0.85
1.1≦log(E2/E1)≦1.4
wherein D1 represents a density obtained by exposing to light in an exposure amount-ten times as much as that required to provide the density of [a density at the unexposed portion+0.02], in the characteristic curve obtained by a 10
−1
-sec exposure,
D1′ represents a density obtained by exposing to light in an exposure amount ten times as much as that required to provide the density of [a density at the unexposed portion+0.02], in the characteristic curve obtained by a 10
−4
-sec exposure,
E1 represen
Fuji Photo Film Co. , Ltd.
Letscher Geraldine
Sughrue & Mion, PLLC
LandOfFree
Silver halide color photographic light-sensitive material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Silver halide color photographic light-sensitive material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silver halide color photographic light-sensitive material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3049480