Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Kenji Kumashiro

Toshifumi Iijima

Hiroshi Kashiwagi

Yoshitaka Yamada

Syoji Matsuzaka

Takashi Kamio

Noritaka Nakayama

Katsunori Katoh

Satoshi Kawakatsu

Kaoru Shinozaki

Shinya Shimura

Koichi Hatta

Toshihiko Yagi

Hideo Akamatsu

Yoshiharu Mochizuki

Shigeharu Koboshi

Kazuo Kato

Satoru Kuse

Masao Ishikawa

Hiroshi Shimazaki

Fumio Ishii

Hideki Takiguchi

Takashi Uchida

Satoru Shimba

Hajime Wada

Yoshihiro Haga

Yoshikazu Watanabe

Yuji Hotta

Minoru Ishikawa

Hiroshi Menjo

Kiyotoshi Yamashita

Masao Iwamuro

Yasuko Matsubara

Satoshi Matsunaga

Toshijumi Iijima

Takeshi Sampei

Hiroko Ohya

Hideo Ohta

A silver halide photographic light-sensitive material is disclosed which has a high speed with a low fog and is improved on the long-term preservability. The light-sensitive material comprises a support having thereon a photographic component layer including at least one silver halide emulsion layer, in which the silver halide emulsion layer comprises silver halide grains, each of which are comprised of two or more phases different in the silver iodide content, wherein the average silver iodide content of the grain is higher than the silver iodide content of the external phase of the grain, and to at least one layer included the photographic component layer is added elementary sulfur in a step of manufacturing process of the silver halide photographic light-sensitive material.

High-speed and well-preservable silver halide photographic

A method for forming photographic color images is disecond closed, in which a silver halide color photographic light-sensitive material is rapidly processed with low replenishment of processing solutions. The images improved in lowered yellow stain can be obtained. The processing comprises steps of color developing, bleaching immediately after the developing step, and treating with a bath having a fixing capability following the bleaching step. The steps of bleaching and treating with a solution having a fixing capability are carried out for a time of not more than 3 minutes 45 seconds at a temperature of from 20.degree. to 45.degree. C. The light-sensitive material comprises silver halide emulsion layers each containing silver bromide and/or silver boromoiodide grains and satsifies at least one of the following requirements (1) and (2); (1) a blue light-sensitive emulsion layer included in the silver halide emulsion layers has a silver density d of not less than 4.0.times.10.sup.-1 g/cm.sup.3. (2) a green light-sensitive emulsion layer included in the silver halide emulsion layers has a silver density d of not less than 6.0.times.10.sup.-1 g/cm.sup.3.

Method of forming color photographic images

A silver halide photographic material is disclosed, said material having silver halide emulsion layers on a support, the emulsion in said silver halide emulsion layers containing magenta coupler represented by the following formula (I), said emulsion containing silver halide grains which have a (110) plane and/or a crystal plane having an edge running through substantially the center of a (110) plane, the silver halide composition of said grains being substantially made of silver bromide and/or silver iodobromide: ##STR1## where Z represents a group of the non-metallic atoms necessary for forming a nitrogen-containing hetero ring which may have a substituent; X is a hydrogen atom or a substituent which is capable of being eliminated upon reaction with the oxidation product of a color developing agent; and R is a hydrogen atom or a substituent.

Silver halide photographic material

A silver halide photographic light-sensitive materially having at least one silver halide emulsion layer comprising a magenta coupler represented by formula I and negative type silver halide grains having a core-shell structure which consists of:

Silver halide photographic light-sensitive material

A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements:

Silver halide color photographic light sensitive material

A silver halide color photographic material having at least one silver halide emulsion layer on a support is disclosed. Said silver halide emulsion layer contains at least one of the 1H-pyrazolo [3,2-c]-S-triazole derived magenta couplers that have a substituent of the following formula at 3-position:

Silver halide color photographic material containing a 1h-pyrazole

A photographic material comprising at least one blue sensitive silver halide emulsion layer is disclosed. The silver density of the emulsion layer is not less than 4.0.times.10.sup.-1 g/cm.sup.3 and the dry thickness of the layer is not more than 4.0 .mu.m. A core/shell type silver halide emulsion and a high-speed reaction type scavenger for the oxidation products of a developing agent are preferably used for the emulsion layer. The photographic material has a high sensitivity and provides an image having a superior sharpness and resolution.

Silver halide photographic material with a specified silver density and

Disclosed is a light-sensitive silver halide photographic material comprising at least one layer of green-sensitive silver halide emulsion layer (GH), at least one layer of red-sensitive silver halide emulsion layer (RH) and a plural number of blue-sensitive silver halide emulsion layers with different sensitivities, provided on a support, which is characterized in that one of the said plural number of blue-sensitive silver halide emulsion layers is provided as a silver halide emulsion layer (BH) positioned at the farthest side from the support, at least one layer GH and at least one layer RH are provided between the layer BH and a blue-sensitive silver halide emulsion layer lower in sensitivity than the layer BH, and further fine grains of silver halide are contained in at least one of the said blue-sensitive emulsion layer of lower sensitivity and a layer adjacent thereto. The fine grains of silver halide may have a blue-sensitive sensitizing dye adsorbed on the surfaces thereof.

Light-sensitive silver halide color photographic material

There is disclosed a light-sensitive silver halide color photographic material having red-sensitive, green-sensitive and blue-sensitive emulsion layers, each layer consisting of two or more layers with different sensitivities on a support, wherein the layers are constituted so as to satisfy the following requirements (A), (B), (C) and (D): (A) of the respective emulsion layers having the highest sensitivities among the the red-sensitive, green-sensitive and blue-sensitive emulsion layers, the highest sensitivity blue-sensitive emulsion layer is provided on the side farthest from the support; (B) at least the the highest sensitivity red-sensitive emulsion layer and the highest sensitivity green-sensitive emulsion layer are provided between the the highest blue-sensitive emulsion layer and a blue-sensitive emulsion layer with lower sensitivity; (C) none of the respective red-sensitive, green-sensitive and blue-sensitive emulsion layers having the lowest sensitivities exists on the side farther than the low sensitivity blue-sensitive emulsion layer from the support; and (D) contained in at least one layer of the high sensitivity red-sensitive, green-sensitive and blue-sensitive layers, is a diffusion-resistant compound capable of forming a mobile dye through the coupling reaction with the oxidized product of a chromogenic developing agent. The light-sensitive material according to this invention exhibits excellent photographic characteristics such as graininess, sharpness and sensitivity.

Light-sensitive silver halide color photographic material having

A silver halide color photographic material having blue-, green- and red-sensitive silver halide emulsion layers coated on a support is provided, each of said layers being composed of a plurality of sub-layers having different sensitivities. In said material, at least a red-sensitive silver halide emulsion sub-layer having high sensitivity is provided between a first green-sensitive silver halide emulsion sub-layer of high sensitivity and a second green-sensitive silver halide emulsion sub-layer having a lower sensitivity than said first green-sensitive sub-layer, said first green-sensitive sub-layer and/or said red-sensitive sub-layer with high sensitivity giving a maximum color density of formed dye in said material higher than 0.6 but not exceeding 1.3.

Silver halide color photographic material of high sensitivity and

A silver halide photographic light-sensitive material comprising a least one silver halide emulsion layer, wherein said silver halide emulsion layer comprises a phenol-type cyan coupler having at the 2-position of the penol nucleus thereof a group selected from the group consisting of a phenyl-ureido group, a naphthyl-ureido group and a heterocyclic ureido group, and having at the 5-position thereof an acylamino group, and a negative type silver halide grains of a core-shell structure which consisting of silver bromide or silver iodobromide and a plurality of shells essentially consisting of silver bromide or silver iodobromide, said plurality of shells comprising an outermost shell containing 0 to 10 mol % of silver iodide, a highly iodide-containing shell provided inside said outermost shell of which silver iodide content is at least 6 mol % of silver iodide, a highly iodide-containing shell provided inside said outermost shell of which silver iodide content is at least 6 mol % higher than that of said outermost shell, and an intermediate shell provided between said outermost shell and said highly iodide-containing shell of which a silver iodide content is at least 3 mol % higher than that of said outermost shell, and at least 3 mol % lower than that of said highly iodide-containing shell.

A silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing at least one magenta coupler having the following formula: ##STR1## wherein R.sub.1 is a tertiary alkyl group; R.sub.2 is a secondary or tertiary alkyl group; X is a leaving group other than a hydrogen atom that leaves upon reaction with the oxidation product of a color developing agent.

Silver halide color photographic material containing a magenta coupler

A silver halide photographic material having as essential photographic layers at least one photosensitive silver halide emulsion layer and at least one non-sensitive hydrophilic colloidal layer on a support is disclosed. At least one of said photographic layers contains fine oil globules at a density of 1 or more, and a hardener having at least three functional groups is incorporated in at least one photographic layer containing said fine oil globules and/or at least one photographic layer which is farther from said support than the photographic layer containing said fine oil globules.

There is disclosed a light-sensitive silver halide photographic material having at least one silver halide emulsion layer constituted of a plural number of layers which are substantially the same in color to which they are sensitive but different in sensitivity provided on a support, which comprises a layer having the highest sensitivity among the plural number of layers with different sensitivities which contains at least two kinds of substantially mono-dispersed silver halide grains with different average grain sizes. The light-sensitive silver halide photographic material according to this invention is high in sensitivity and excellent in graininess of dye image.

Growing community of inventors

Hachioji, Japan

Kenji Kumashiro