Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Toshiharu Nagashima

Takeo Arai

Takeshi Habu

Shinichi Otani

Teruo Kashino

Hiromitsu Kosugi

Masakazu Andoh

Kazuhiro Watanabe

Kazuhiro Yoshida

Yasuhiko Takamuki

Akira Kobayashi

Mariko Kato

Takeshi Murakami

Takehisa Kishita

Hideaki Sakata

Takatoshi Yamada

Yasuhiro Wakasugi

A method for producing a silver halide photographic light-sensitive material is disclosed. The silver halide photographic light-sensitive material comprises a support having thereon photographic layers including a silver halide emulsion layer, a first hydrophilic colloid layer and an outermost second hydrophilic colloid layer in this order from the support. The light-sensitive material is produced by a method comprising steps of

Method for producing a silver halide photographic light-sensitive

A method of preparing a light sensitive silver halide photographic material is disclosed. In the method a coated layer surface temperature is not higher than 19.degree. C. when a percentage of water to binder is within the range of 800-200% by weight on a side coated with the light sensitive silver halide emulsion layer, and the light sensitive material can be dried up by taking not shorter than 35 seconds to get a percentage within the range of 800-200% by weight. A light sensitive photographic material is also disclosed. The material has a specific surface smoothness degree and contains matting agent, and is prepared by above-mentioned method.

Silver halide photographic light-sensitive material and the process of

The improved silver halide photographic material comprises a support having an antistatic coating thereon that contains a water-soluble conductive polymer, hydrophobic polymer particles and a curing agent which is a bifunctional ethylene oxide type curing agent that is to be cured by exposure to electron beams or X-rays. This silver halide photographic material may contain a tetrazolium compound or a hydrazine compound in order to prevent desensitization due to aging. At least one hydrophilic colloidal layer may be provided on the antistatic coating, which colloidal layer contains an epoxy curing agent having a hydroxy group.

Silver halide photographic element

An improved process for producing a silver halide photographic material that has at least one light-sensitive silver halide emulsion layer on a support as well as at least one hydrophilic colloidal layer coated on both sides of the support. The process is characterized in that the hydrophilic colloidal layers on the two sides of the support are dried simultaneously and that a matting agent having a particle size of at least 4 .mu.m is incorporated in the outermost layer on both sides of the support in an amount of at least 4 mg/m.sup.2.

Process for producing silver halide photographic materials

In an automatic developing machine in which a photographic film is dried by a drying unit after development, a method of controlling the temperature and/or humidity of the film drying air in order to prevent variation in the film size before and after the processes of development and drying, which comprises prior computation of the variations in the film size according to a temperature and humidity of outside air, thereby determining the optimum operating condition of the drying unit from a result of the prior computation, and thereafter setting the drying unit with the optimum operating condition so that the automatic developing machine may process the film without variation in the film size.

Drying air control method in an automatic developing machine and an

In the improved method of processing an imagewise exposed silver halide photographic material that has photographic constituent layers on a side of a support with an automatic processor, comprising:

Method of processing silver halide photographic materials

A method of preparing a light sensitive silver halide phtographic material is disclosed. The photographic material comprises a polyester support having a hydrophobic polymer layer containing a vinylidene chloride copolymer and at least one hydrophilic polymer layer. The method comprises steps of coating a hydrophilic polymer layer onto the polyester support, drying the layer until a water content of the layer reaches 60 wt %, and contacting the layer with air having a relative humidity of 5 to 25% for a period 5 seconds to 10 minutes. The photographic material according to the method has such a physical characteristics as dimensional stability for long time storage or anti-cracking of the photographic layer at the preparation period. It is suitable for printing use.

Methods for producing and preserving a silver halide photographic

A silver halide light-sensitive photographic material having an improved safe-light insensitivity and, therefore, capability of being easily handled in the light room is disclosed. The material comprises a support; at least one silver halide emulsion layer being provided on one side of the support and containing silver halide grains containing at least 50 mol % of silver chloride, 10.sup.-4 to 10.sup.-8 mol per 1 mol of silver halide of a rhodium salt and a desensitizing dye; and at least one hydrophilic colloidal layer being provided on the other side of the support and containing at least one dye so that the absorbancy of the dye at the maximum spectral sensitivity wavelength (.lambda.max) of the densenitizing dye is not less than 0.3 and the absorbance ratio at the maximum spectral sensitivity wavelength against that at 450 nm is not less than 0.2.

Negative silver halide photographic light-sensitive material capable of

A silver halide photographic light-sensitive material, and a method of preparing the same and a method of image forming using the same photographic material. The photographic material comprises a support bearing, on one side thereof, a layer containing a light-sensitive silver halide emulsion comprised of silver halide grains having an average size of from 0.05 .mu.m to 0.3 .mu.m and gelatin and, on the other side thereof, a non-light-sensitive layer containing gelatin and at least one of the emulsion layer and the non-light-sensitive layer is brought into contact with air having a temperature of from 35.degree. C. to 80.degree. C. or relative humidity of from 5% to 25% for a period not shorter than 5 seconds to not longer than one minute, within 5 minutes from the point of time when the average surface temperature of said layer is raised up to a temperature 1.degree. C. lower than the average temperature of atmospheric are for drying said layer in the step where the said layer is coated on said support and is cooled as to be gelled and dried. The photographic material is processed for a time within the range of from 20 seconds to 60 seconds.

Silver halide photographic light-sensitive material and the method of

A process for manufacturing a silver halide direct positive type emulsion comprising primarily silver bromide prepared in the presence of a water-soluble rhodium salt said process comprising; simultaneously adding and mixing a silver aqueous solution and a halide aqueous solution to form an aqueous solution containing a hydrophilic colloid, said resultant mixture having a silver potential maintained with a range of from 100 mV to 200 mV, the speed at which the solutions are added being not more than the critical growth speed of existing silver halide grains, and fogging said silver halide grains.

Manufacturing process for silver halide photographic emulsion

Herein are disclosed a light-sensitive silver halide photographic material comprising a support and, coated thereon, a hydrophilic colloid layer or layers including a silver halide emulsion layer, at least one of said hydrophilic colloid layer or layers containing a 1H-tetrazolium compound, and an image-forming method which comprises processing a light-sensitive silver halide photographic material mentioned above. The light-sensitive silver halide photographic material and the image-forming method according to the present invention can provide a high contrast silver image and a clear dot quality.

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Hino, Japan

Toshiharu Nagashima