Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Akio Suzuki

Eiji Yoshida

Satoru Nagasaki

Masumi Hosaka

Masumi Arai

Chika Honda

Takeo Koitabashi

Nobuaki Tsuji

Iku Metoki

Masatoshi Iwata

Syoji Matsuzaka

Kiyoshi Sato

Hiroaki Shiozawa

Katsutoshi Machida

Hideki Takiguchi

Haruhiko Sakuma

Teruo Kashino

Yoshihiro Haga

Katsushi Fujita

Hisashi Yamaguchi

Shinichi Ohtani

Koichi Ueda

Chiba Honda

Disclosed is a light-sensitive silver halide photographic element which comprises photographic layers applied under the condition that the surface tension of a coating solution for forming an outermost layer is 6 dyn/cm or more smaller than the surface tension of a solution for forming a layer adjacent to the outermost layer, and satisfying at least one of the conditions shown below:

Light-sensitive silver halide photographic material feasible for high

A silver halide photographic light-sensitive material is disclosed which is excellent in the super-rapid processability. The photographic material comprises a support having thereon at least one hydrophilic colloid layer comprising at least one silver halide emulsion layer. The hydrophilic colloid layer is formed by one or more times of coating provided that wet thickness of the layers coated in each time of coating is within the range of from 35 to 80 .mu.m, and a total content of gelatin of the whole hydrophilic colloid is in an amount of from 2.20 to 3.10 g/m.sup.2. The photographic material is suitable for super-rapid processing by an automatic processor for 20 to 60 seconds.

Process for manufacturing a silver halide photographic material having a

A silver halide photographic material is disclosed which has at least one hydrophilic colloidal layer on a support, said photographic material having a water content of 10-20 g/m.sup.2 at the time when the washing step of processing with a roller transport type automatic processor is completed.

Silver halide photographic material containing a specified water

A silver halide photographic light-sensitive material comprising a support having the first photographic structural layer comprising one or more layers on a side of the support and the second photographic structural layer comprising one or more layers on the other side of the support, in which at least one of the photographic structural layers comprises a silver halide light-sensitive emulsion layer, and the total amount of gelatin contained in the photographic structural layer comprising the silver halide emulsion layer is within the range of from 2.25 g/m.sup.2 to 3.15 g/m.sup.2. The uppermost layer of the photographic structural layer comprising the silver halide emulsion is formed by coating of a solution having a surface tension of from 15 to 26 dyn/cm, and the second photographic structural layer is coated and gelled simultaneously with coating and drying of the first photographic structural layer. The photographic material is improved in the adaptability for super-rapid processing with the total duration of 20 to 60 sec. and the anti-scratch property.

Silver halide photographic light-sensitive material capable of

A silver halide photographic light-sensitive material and a process for processing it are disclosed. The light-sensitive material is improved in photographic sensitivity, drying property and anti-roller-mark property and is suitable for the disclosed ultra-rapid processing by an automatic processor in which the photographic material is processed for the time of 20 sec to 60 sec in total. The light-sensitive material comprises a support having on at least one side thereof one or more hydrophilic layers containing gelatin which comprise at least one light-sensitive silver halide emulsion layer. An amount of the gelatin contained in said hydrophilic layer or layers is within the range of from 1.90 to 3.50 g/m.sup.2 and a swelling amount of said hydrophilic layer or layers is within the range of from 30 to 58 g/m.sup.2 when said light-sensitive material is treated in a specific condition for 15 sec. at 35.degree. C.

Rapidly processable silver halide photographic light-sensitive material

A silver halide photographic material is capable of super-rapid processing with the total time of 20 to 60 minutes and is high in sensitivity, low in fogginess and excellent in pressure resistance and graininess. The photographic material is comprises a support bearing a hydrophilic colloial layer including at least one light sensitive silver halide emulsion layer thereon, wherein

High speed processing silver halide photographic light-sensitive material

A light-sensitive silver halide photographic emulsion wherein the silver halide crystals thereof are formed by:

Silver halide emulsion and process for preparing it, and light-sensitive

A silver halide photographic light-sensitive material comprising a specific silver halide grain is disclosed. The siliver halide grain contains a localized portion containing 20 mol % or more of silver iodide and average content of silver iodide of which grain is from 0.1 to 10.0 mol %, provided that the silver halide grain is prepared by mixing an aqueous solution containing a water soluble halide compound and an aqueous solution containing a water soluble silver salt under a condition that pAg of the mixture is raised at 9.7 or more during a period after a half amount of the silver salt to be used has been added to the mixture. The photographic light-sensitive material has improved photographic characteristics and is suitable for radiographic use.

Silver halide photographic light-sensitive material

A light-sensitive silver halide photographic material for X-ray photography characterized in that the material has the characteristic curve whose gamma between optical densities of 0.50 and 1.50 is 2.7 to 3.3 and gamma between optical densities of 2.00 and 3.00 is 1.5 to 2.5, when processed by use of the following developer:

Light-sensitive silver halide photographic material for X-ray photography

A silver halide photographic light-sensitive material having high sensitivity and high covering power, particularly suitable for use in radiography comprising on a support, a silver halide emulsion layer having silver halide grains which have a grain-size distribution curve comprising at least two peaks of which in the mode form, the highest peak mode and another peak mode adjacent thereto stand leaving a space of 0.10.mu. to 0.30.mu. therebetween. An orthochromatic dye-sensitizer increases the sensitivity.

Silver halide photographic radiography light-sensitive material

A process for preparing a monodisperse core/shell type silver halide photographic emulsion comprising silver halide grains wherein the average silver iodide content in the grains is 0.5 to 10 mole % and each of the grains comprises a core portion having no silver iodide. The silver halide grains are caused to grow from seed crystals having substantially no twin crystal by supplying silver ions and halide ions in the presence of protective colloid. The supplying speeds of silver ions and halide ions are gradually increased as the grains grow and the supply of iodide ions in the halide ions is made before the completion of supply of silver ions. The content of ammonia contained in liquid phase emulsion is fixed to the value that is 0.3 normal or more and pAg is fixed to the value that is less than 8 for the supply of iodide ions.

Silver halide photographic emulsion and a process for the preparation

A silver halide light-sensitive photographic material for radiographic use comprising a transparent support and a silver halide emulsion layer on both sides thereof such that the blue light transmission density difference between the support and the silver halide layer is .gtoreq.0.35 and .ltoreq.0.60.

Silver halide light-sensitive photographic material for radiographic use

A silver halide photographic light-sensitive emulsion contains silver halide particles, chemically sensitized, the average concentration of the silver iodide of which is from 0.5 to 10 mole % and which have inside part wherein not less than 20 mole percent silver iodide is present locally; and at least one cyanine dyes having the Formulas [I], [II] and [III] as herein described.

Silver halide photographic light-sensitive emulsion

A silver halide X-ray photosensitive material has a support bearing thereon a silver halide emulsion layer. The layer has at least three kinds of silver halide emulsions whose photographic characteristics are substantially different from each other. Out of at least three kinds of the silver halide emulsions, at least one of them is a monodisperse emulsion E.sub.1 and at least another one of them is a polydisperse emulsion E.sub.2.

Silver halide X-ray photosensitive material

There is disclosed a method for preparing a silver halide photographic emulsion by use of an ammoniacal silver nitrate solution in a double-jet manner, characterized in that the method comprises the step of maintaining the ratio between the maximum and minimum solubility of the silver halide in a silver halide photographic emulsion at 3 or less after 1/10 of the total amount of the solution containing silver halide has been used. The method according to the present invention provides a monodispersed silver halide photographic emulsion which has a high sensitivity, i.e., which comprises silver halide having a relatively large crystal size.

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Hino, Japan

Akio Suzuki