Konica Corporation

Konica Minolta Medical and Graphic, Inc.

Konica Minolta & Medical Graphic, Inc.

Toshiyuki Marui

Tetsuya Suzuki

Hiroto Ito

Hideki Takiguchi

Yasuo Taima

Kenji Ohnuma

Kazuhito Ihara

Kazuhiko Fujikura

Hirobumi Yamashita

Naoko Fukuwatari

A silver salt photothermographic dry imaging material wherein said material has photographic speeds () and () determined based on the predetermined conditions and the photographic speed () is not more than 1/10 of the photographic speed (), and the coefficient of determination value Rof the linear regression line is 0.998-1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscicca and b* is used as the coordinate of the CIE 1976 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is &#x2212;5-5, and gradient (a*/b*) is 0.7-2.5.

Silver salt photothermographic dry imaging material

A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value Rof the linear regression line is 0.998&#x2013;1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscissa and b* is used as the coordinate of the CIE 1076 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is &#x2212;5&#x2013;5, and gradient (a*/b*) is 0.7&#x2013;2.5.

A silver halide light sensitive photographic material is disclosed, comprising a support having thereon a silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected area of silver halide grains contained in the silver halide emulsion layer is accounted for by tabular silver halide grains having an aspect ratio of 2 to 15, (100) major faces with an edge ratio of 1 to 2, and a silver chloride content of 50 mol % or more; and the emulsion layer further containing a leuco compound capable of forming a blue dye upon reaction with an oxidation product of a developing agent.

Silver halide light sensitive photographic material

A method for processing a silver halide photographic light-sensitive material is disclosed. The processing method comprises the step of (1) developing a silver halide photographic light-sensitive material which comprises a support having thereon a silver halide emulsion layer and a hydrophilic colloid layer adjoining with the silver halide emulsion layer, and at least one of the silver halide emulsion layer and the hydrophilic colloid layer contains a phosphazene compound and a compound represented by the following Formula 1 or 2 by a developing solution and (2) fixing the silver halide photographic light-sensitive material by a fixing solution, ##STR1## wherein R.sub.1 and R.sub.2 are each independently a hydroxyl group, a mercapto group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonyl group or an alkylthio group, and Z is a group of atoms necessary to form a 5- or 6-member ring, ##STR2## wherein R is an aryl group, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each independently a hydrogen atom, an alkyl group, an aralkyl group or an aryl group.

Method for processing silver halide photographic light-sensitive material

A method for processing a silver halide photographic material. The method comprises the steps of (1) developing, fixing and washing a photographic light-sensitive material which comprises a support and a photographic layer including a silver halide emulsion layer being provided on the support in which the outermost surface of the photographic layer has a matting degree of 0 to 150 mmHg and the silver halide emulsion layer contains colloidal silica particles, (2) drying the silver halide photographic light-sensitive material by contacting with a heat conductive member having a surface temperature of 90.degree. C. to 150.degree. C. which installed in a drying zone of the automatic processing machine. In the above method, the photographic light-sensitive material has a moisture content of 3 g/m.sup.2 to 6.5 g/m.sup.2 at the point just before of the drying zone and the total time from start of the developing process to finish of the drying process is within the range of more than 15 seconds to less than 45 seconds.

Method of processing silver halide light-sensitive photographic material

A silver halide photographic light-sensitive material comprises a support and provided thereon, a photographic component layer comprising a silver halide emulsion layer, the material being processed in 10 seconds to less than 45 seconds, wherein the photographic component layer comprises polymer latex of a polymer containing in its chemical structure a unit derived from a monomer having a solubility in water of 25.degree. C. of 0.000 to 0.025% by weight and the pH of the surface on the silver halide emulsion layer side of the material is not more than 6.0.

Silver halide photographic light-sensitive material

Disclosed is a light-sensitive silver halide X-ray photographic material comprising a mixture of tabular silver halide grains, wherein tabular silver halide grains of 0.6 .mu.m to 1.5 .mu.m in an average grain size are contained in a proportion of 70% to 95% and of 0.3 .mu.m to 0.5 .mu.m in a proportion of 5% to 30%; the aspect ratio of tabular grains is more than 3; and having sensitometric properties in which a gamma (.gamma.1) formed by a straight line portion between two points 0.5 and 1.5 of optical density is 2.7 to 3.3 and a gamma (.gamma.2) formed by a straight line portion between points 2.0 ana 3.0 of optical density is 1.5 to 2.5 in the characteristic curve of a rectangular coordinate system having equal coordinate axis unit lengths for the optical density (D) and the amount of exposure (log E). A light-sensitive silver halide X-ray photographic material according to this invention has a superior diagonostic performance, and is improved in sharpness and graininess and also improved in pressure resistance.

Light-sensitive silver halide X-ray photographic material containing a

A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer and optionally having another layer, and the emulsion layer or the other layer contains a kind of polymer latex comprising a polymer having a repeating unit derived from a monomer having a solubility in water at 25.degree. C. of not higher than 0.025% by weight, and said support comprises polyethylene-2,6-naphthalate and has a thickness of from 70 .mu.m to 120 .mu.m.

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Tokyo, Japan

Toshiyuki Marui