Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1997-09-04
2000-02-22
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430390, G03C 140
Patent
active
060278684
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a monochrome-image-forming silver halide light-sensitive material suitable for the photographic processing of a negative-positive type color photographic system and a photo-taking unit using the same.
BACKGROUND OF THE INVENTION
In the photographic systems which are currently abundant, a silver halide color light-sensitive material for photography (a color negative film) is loaded into a camera for photographing and a color photographic paper is printed from a so-called color negative film developed to obtain a positive color print (a negative-positive system). Alternatively, in a reversal processing type silver halide color light-sensitive material (a color reversal film) for photographing, a positive image can be obtained only with reversal developing. Therefore, it is viewed as it is or is viewed with a slide projector. In addition, a positive color print can be made (a positive-positive style). However, since the color reversal film has narrow photographing latitude, it is not suitable for easy photographing. In addition, a positive color print is expensive. Therefore, aforesaid positive-positive system has not got ahead of aforesaid negative-positive system. In addition, due to appearance of a photo-taking unit housing an unexposed color negative film with a photographable state, i.e., a so-called lens-fitted film, opportunity of photographing a color negative film has further increased. Accordingly, the position of the negative-positive type has been solidified.
Among proliferation of aforesaid color photographic system, a black-and-white silver halide light-sensitive material for photographing has caused a calm boom. It is assumed that, in the overflow of color photography, a monochrome image is felt to be fresh in return and that its peculiar description is felt to be mysterious. The main users of the black-and-white light-sensitive material for photography was a professional and advanced amateur. However, in April, 1995, "Film In-Mini B & W" was released, enabling any people to be able to enjoy photographing using a black-and-white silver halide light-sensitive material. Since it obtained unexpected reputation, the photographic industry field had to take notice of.
However, since the photographic processing method of the black-and-white silver halide light-sensitive material for photographing is different from that of a negative-positive type color photographic system which has been proliferating. Therefore, there is a big trouble to labs in the city to select the black-and-white silver halide light-sensitive material to handle. In addition it is necessary to newly install a photographic processing steps for the black-and-white silver halide light-sensitive material.
On the contrary, a monochrome image forming silver halide light-sensitive material for photographing which is suitable for the photographic processing of a commonly-prevailing negative-positive type color photographic system is known. In U.S. Pat. Nos. 2,592,514 and 4,348,474, Japanese Patent Publication No. 59136/1988 and Japanese Patent Open to Publication (hereinafter, referred to as Japanese Patent O.P.I. Publication) No. 236550/1986, a monochrome image forming silver halide light-sensitive material using a black coupler is disclosed.
U.S. Pat. Nos. 2,181,944, 2,186,736, 4,368,255, 5,141844 and Japanese Patent O.P.I. Publication Nos. 56838/1982, 58147/1982, 215645/1983, 107144/1991, 214357/1994 and 199421/1995 and Japanese PCT Application Publication No. 505580/1994 disclose technologies to form a black dye image by mixing a yellow coupler, a magenta couple and a cyan coupler which are used for a conventional silver halide color light-sensitive material. However, all of the above-mentioned technologies have a shortcoming that printing onto a photographic paper is complicated though photographic processing can be commonalized. If the above-mentioned technologies are used for color photographic processing, either coloring component collapses balance with other coloring comp
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Iwagaki Masaru
Iwasaki Toshihiko
Bierman Jordan B.
Konica Corporation
Le Hoa Van
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