Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Mitsuhiro Okumura

Shigeo Tanaka

Keiji Ohbayashi

Makoto Kajiwara

Kaoru Onodera

Masanobu Miyoshi

Takaaki Kojima

Shigeo Chino

Shinichi Nakamura

Masataka Nakano

Yuji Tanaka

Hirokazu Sato

Takashi Kadowaki

Takahiko Nojima

Syun Takada

Shigeharu Koboshi

Kazuhiro Kobayashi

Shuji Murakami

Masao Ishikawa

Shun Takada

Masaru Iwagaki

Eiichi Sakamoto

Shinri Tanaka

Yukio Ohya

Kazuhiro Murai

Tsuyoshi Ikeda

Hideaki Maekawa

Keiji Obhayashi

A silver halide light-sensitive photographic material is disclosed. The photographic material comprises a support and a blue-sensitive silver halide emulsion layer. The blue sensitive emulsion layer comprises a mixture of at least two kinds of silver halide emulsions each comprises silver chloride grains or silver chlorobromide grains containing not less than 90 mol % of silver chloride and are sensitized with a blue-sensitizing dye and have an average grain size of from 0.6 .mu.m to 0.9 .mu.m in terms of diameter of spherical grain. The average grain sizes of the two kinds of the emulsions are different from each other in the average grain size by 0.05 .mu.m or more. The coating amount of the blue-sensitizing dye contained in the blue-sensitive emulsion layer is not more than 7.0.times.10.sup.-4 g/m.sup.2.

Silver halide light-sensitive photographic material

Disclosed is a silver halide photographic light-sensitive material comprising a support and having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a gelatin comprising an iron ion of 0.5 ppm to 5 ppm and .alpha.-constituent having weight-average molecular weight of 80,000 to 120,000 in an amount of not less than 40% by weight of the gelatin.

Silver halide photographic light-sensitive material

A silver halide photographic light-sensitive material forming a black and white image is disclosed. The silver halide in the silver halide emulsion layer is silver chlorobromide having a silver chloride content of not less than 90 mol % and containing virtually no silver iodide; the emulsion layer contains a coupler selected from resorcinol-based dye-forming couplers and aminophenol-based dye-forming couplers, and gelatin in a coating weight of 1.0 to 1.5 g/m.sup.2. The silver halide photographic light-sensitive material is processed by color development to form a black and white image.

Silver halide photographic light-sensitive material with black dye

A silver halide color photographic light sensitive material excellent in both sharpness and whiteness of background while being capable of satisfactorily displaying the yellow coupler characteristics including an excellent color reproduction is provided, wherein the silver halide color photographic light sensitive material contains a compound represented by the following Formula [I] in at least one of the photographic component layers thereof, a compound represented by the following Formula [II] in at least one of the silver halide emulsion layers thereof, and a compound represented by the following Formula [III] in at least one of the photographic component layers; and ##STR1##

Silver halide color photographic light sensitive material

A silver halide black and white photographic light-sensitive material which is improved in pressure resistance and storage stability is disclosed comprising a support having thereon a silver halide emulsion layer comprising silver halide grains, wherein said silver halide grains contain rhodium in an amount of 10.sup.-8 to 10.sup.-5 moles per mol of silver halide; and said grains are spectrally sensitized with a combination of sensitizing dyes (GS-1) and (RS-1), each represented by the following formula: ##STR1##

Silver halide black & white light-sensitive material comprising

A silver halide color light-sensitive material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer provided on the support. The emulsion layer comprises silver halide grains which have been formed in the presence of a complex of rhenium, molybdenum, iridium, rhodium, ruthenium, osmium, cadmium, zinc, palladium, platinum, gold, iron, nickel, cobalt, tungsten, or chromium each having at least one cyanate ligand, isocyanate ligand or fluminate ligand. The light-sensitive material is high in speed, low in fog and excellent in reciprocity low failure characteristics.

A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer provided on the support, and the silver halide emulsion layer comprises a hydrogen peroxide-treated gelatin in a ratio of not lower than 20% by weight to the total amount of gelatin contained in the silver halide emulsion layer and silver halide grains composed of silver chlorobromide having a silver chloride content of not lower than 90 mol %. The light-sensitive material is improved in the stability of emulsion coating solutions.

A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing silver halide grains each containing an iridium compound and a compound containing iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium or platinum; elemental sulfur; and two kinds of specified monomethine cyanine sensitizing dyes. The light sensitive material is improved in the reciprocity law failure property and the sensitivity fluctuation due to variation of atmosphere humidity.

Silver halide color photographic light-sensitive material

A silver halide photographic emulsion containing silver halide grains having a silver chloride content of not less than 90 mol % and a method for preparing thereof are disclosed, wherein the silver halide grains are obtained by forming said silver halide grains in the presence of a water-soluble iridium compound and a nitrogen-containing heterocyclic compound capable of forming sparingly-soluble silver salt; and by controlling the addition of said iridium compound, whereby the photographic emulsion is improved in the dependence of gradation on exposure intensity.

Silver halide photographic emulsion prepared with silver halide grains

There is disclosed a monochromatic silver halide light-sensitive photographic material for printing from a color negative, which has an excellent sensitivity, sharpness, graininess and background whiteness. The photographic material is characterized by that the surface of the support on which the emulsion layer is provided has the following reflection properties:

A method of processing a light-sensitive silver halide color photographic material wherein a light-sensitive silver halide photographic material having a support and provided thereon at least one silver halide emulsion layer containing a dye-forming coupler and silver halide grains which are sensitized with specific sensitizing dyes, is processed with a color developer solution containing specific aromatic primary amine color developing agents.

Method of processing light-sensitive silver halide photographic material

A silver halide color photographic light sensitive material and a image forming method using the photographic material. The photographic material comprises a support having thereon a silver halide emulsion layer containing silver halide grains having a silver chloride content of not less than 90 mol %, a cyan coupler represented by the following formula C-1 and a nitrogen-containing hetero-cyclic mercapto compound. ##STR1## The photographic material is developed with a color developer substantially not containing benzyl alcohol for a time not more than 2 minutes 30 seconds. An color image having preferable light-absorption characteristics and a high maximum density is obtained. The photographic material is also excellent in storage stability.

High silver halide chloride content color photographic light-sensitive

A silver halide photographic light-sensitive material which has an excellent gradation and an excellent pressure resistance. The photographic material comprising a support and, provided thereon, a photographic component layer including a silver halide emulsion layer in which the sewlling degree of said photographic component layer is not higher than 150 and said silver halide emulsion layer is added with elementary sulfur.

A silver halide photographic light-sensitive material containing inorganic sulfur or elemental sulfur, and a processing method comprising a step for developing such photographic material with a color developer which contains an aromatic primary amine compound for not more than 60 seconds. Photographic image improved in contrast of the without degradation in sensitivity and fogging can be obtained by the photographic material and the processing method.

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Hino, Japan

Mitsuhiro Okumura