Fuji Photo Film Company, Limited

Fujifilm Corporation

Dai Nippon Toryo Co., Ltd.

Soken & Chemical & Engineering Co., Ltd.

Kunio Ishigaki

Taku Nakamura

Takashi Naoi

Masasi Ogawa

Masashi Ogawa

Junichi Yamanouchi

Mitsunori Hirano

Nobuyuki Iwasaki

Hidetoshi Watanabe

Hidefumi Sera

Seiichi Yamamoto

Kouta Fukui

Keiichi Adachi

Takahiro Ishizuka

Yuji Mihara

Akira Hatakeyama

Toshinao Ukai

Masahiro Okada

Ken-ichi Kuwabara

Satoshi Kanetake

Morio Yagihara

Shigeru Ohno

Seiji Suzuki

Kazunobu Katoh

Hiroyuki Mori

Hisashi Okada

Yoshihiro Takagi

Nobuaki Inoue

Kiyoshi Morimoto

Masakazu Yoneyama

Toshiyuki Watanabe

Toshiaki Kubo

Toshiro Takahashi

Hisashi Shiraishi

Atsuaki Arai

Jun Yamaguchi

Tetsuo Yoshida

Naohiko Sugimoto

Norio Miura

Tokuju Oikawa

Shoji Yasuda

Keiji Shimiya

Kiyotaka Hori

Masao Takano

Haruo Ogura

Takayuki Inayama

Yuuzou Muramatsu

Naomi Saeki

Masaaki Torigoe

Yasuhiro Okada

Noriyuki Ousaka

Katuzi Kitatani

Katuji Kitatani

Yuji Yoshimura

Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer and at least one hydrophilic colloid layer on a support, wherein silver halide in the silver halide emulsion layer has a silver bromide content of 40 to 90 mol %, and the silver halide emulsion layer is spectrally sensitized with a specific dye.

Silver halide photographic light-sensitive material

Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.

Disclosed is a silver halide photographic light-sensitive material having a support containing a filler and/or an undercoat layer containing a clay compound coated with an organic substance between the support and an emulsion layer or between the support and a back layer. The silver halide photographic light-sensitive material shows good dimensional stability in a processing system.

Desclosed is a heat-developable image-recording material including a support on which are formed at least one image-forming layer and at least one protecting layer formed on top of said image-forming layer, the heat-developable image-recording material being developed by use of a heat development apparatus comprising a roller coming into a driving contact with a surface of the material on the side having the image-forming layer, the apparatus comprising a smooth surface coming into a sliding contact for transport with a surface of the material opposite to the surface on the side having the image-forming layer, wherein at the temperature where the development is carried out, the ratio is 1.5 or more of the coefficient of friction between the surface on the side having the image-forming layer and a surface of the roller of the heat development apparatus, to the coefficient of friction between the surface opposite to the surface on the side having the image-forming layer and the smooth surface of the heat development apparatus. The heat-developable image-recording material according to the present invention has a good transportability during heat development, does not cause any uneven treatment, and has excellent heat development properties.

Heat-developable image-recording material and method of developing the same

A heat developing method conveying, to make a heating processing on a heater surface, a heat developable image recording material is disclosed in which an image forming layer and a protection layer are formed using a polymer latex as a binder on one side of a support made prepared by subjecting a polyester biaxially drawn and crystallized with orientation to a thermal relaxation processing at a temperature equal to or higher than 130&deg; C. and equal to or lower than 200&deg; C. at a conveyance tension of 7 kg/cm or lower and in which a back layer is formed using a polymer latex as a binder on the other side of the support, the method comprising the steps of: preparing at least two heaters for providing heating processing at a prescribed temperature to the heat developable image recording material disposed securely in line in a conveyance direction of the heat developable image recording material; conveying the heat developable image recording material with a conveying means by sliding the heat developable image recording material on surfaces of the heaters; and thermally processing the heat developable image recording material by pressing at least a part of the heat developable image recording material during conveyance with a pressing means against the surfaces of the heaters.

Heat developing method for heat developable image recording material

A heat developable image recording material is disclosed in which having at least one image forming layer formed on a support, and a multilayered protection layer consisting of a lower protection layer formed adjacent to and on the image forming layer and at least one upper protection layer formed on the lower protection layer, wherein the lower protection layer comprises a polymer as a binder, in which I/O value of the polymer that is obtained by dividing inorganic value by organic value based on an organic conception diagram is equal to or less than 0.60, and wherein a ratio of the I/O value of the polymer contained as the binder of the lower protection layer to the I/O value of a polymer contained as a binder of the upper protection layer is less than 1.0. This heat developable image recording material has an improved post-heat-development adherence between the image forming layer and the protection layer formed on the image forming layer, prevents occurence of white powders, has an adequate film strength and dimentional stability, and reduces contact failures.

Heat developable image recording material

A heat-developable image-recording material comprising, on a support, at least one image-forming layer containing an organic silver salt, a reducing agent, and a light-sensitive silver halide, and at least one protective layer provided on the image-forming layer, wherein the image-forming layer and the protective layer contain a polymer latex as a binder, and the polymer latex of the image-forming layer and/or the protective layer comprises a self-crosslinkable polymer latex.

Heat-developable image-recording material

In a thermographic image-recording element comprising an image-forming layer and a protective layer on one side of a support, and optionally a back layer on the opposite side of the support, a polymer latex is used as a binder in each of the image-forming layer, the protective layer, and the back layer. The element experiences a minimized dimensional change before and after heat development. No wrinkling occurs upon heat development.

Thermographic image-recording elements

Latex polymer of fine particles having a heterogeneous phase structure which comprises a core of a polymer having repeating units derived from a conjugated diene monomer and a shell of a polymer having repeating units derived from at least one ethylenically unsaturated monomer carrying an active methylene group; a silver halide photographic light-sensitive material comprises a core/shell latex polymer whose shell consists of a polymer having repeating units of an ethylenically unsaturated monomer represented by the formula: CH.sub.2 .dbd.C(R.sup.1)--L--X (wherein R.sup.1 represents H, alkyl or halogen, L represents a single bond or a bivalent coupling group, X represents an active methylene group, provided that L is bonded to X in the form of alkylene; and a method for forming images on a silver halide light-sensitive material which comprises exposing the material which comprises at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer either of which comprises a latex polymer having active methylene groups and developing the exposed material with a developer which comprises a dihydroxybenzene developing agent and an auxiliary developing agent showing superadditivity, the pH increase observed when adding 0.1 mole/l developer of NaOH to the developer .ltoreq.0.25; 9.5.ltoreq. initial pH of the developer .ltoreq.11.0; the amount of the developer supplemented .ltoreq.225 ml/m.sup.2.

Fine polymer particles having heterogeneous phase structure, silver

Latex polymer of fine particles having a heterogeneous phase structure which comprises a core of a polymer having repeating units derived from a conjugated diene monomer and a shell of a polymer having repeating units derived from at least one ethylenically unsaturated monomer carrying an active methylene group; a silver halide photographic light-sensitive material comprises a core/shell latex polymer whose shell consists of a polymer having repeating units of an ethylenically unsaturated monomer represented by the formula: CH.sub.2 .dbd.C(R.sup.1)--L--X (wherein R.sup.1 represents H, alkyl or halogen, L represents a single bond or a bivalent coupling group, X represents an active methylene group, provided that L is bonded to X in the form of alkylene; and a method for forming images on a silver halide light-sensitive material which comprises exposing the material which comprises at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer either of which comprises a latex polymer having active methylene groups and developing the exposed material with a developer which comprises a dihydroxybenzene developing agent and an auxiliary developing agent showing superadditivity, the pH increase observed when adding 0.1 mole/l developer of NaOH to the developer .ltoreq.0.25; 9.5.ltoreq. initial pH of the developer .ltoreq.11.0; the amount of the developer supplemented .ltoreq.225 ml/ml.sup.2.

Fine polymer particles having heterogeneous phase structure

A developing solution for silver halide photographic material contains a six-membered heterocyclic compound having two nitrogen atoms as the constituent atoms of the six-membered ring and mercapto group, hydroxyl group and at least one substituent group other than hydrogen atom and a five-membered heterocyclic compound having two to three nitrogen atoms as the constituent atoms of the five-membered ring and at least one mercapto group. There is also disclosed a method for processing a silver halide photographic material with said developing solution.

Developing solution for silver halide photographic material and method

A silver halide photographic material which comprises a support having thereon at least one silver halide emulsion layer, wherein the photographic material contains a hydrazine derivative and a polymer latex having a core/shell structure which each are incorporated in at least one of the silver halide emulsion layer and other hydrophilic colloid layers of the photographic material. The photographic material provides superhigh contrast images without impairing the physical properties of the film.

Silver halide photographic material

A method for forming images on a silver halide light-sensitive material includes exposing a material which contains at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer, either of which includes a latex polymer having active methylene groups, and developing the exposed material with a developer which contains a dihydroxybenzene developing agent and an auxiliary developing agent showing superadditivity, wherein the following requirements are satisfied: the pH increase observed when adding 0.1 mole/l developer of NaOH to the developer.ltoreq.0.25; 9.5.ltoreq.initial pH of the developer.ltoreq.11.0; and the amount of the developer supplemented.ltoreq.225 ml/m.sup.2.

Silver halide photosensitive material

Disclosed is a method for processing a silver halide photographic material, having on one side of a support a hydrophobic polymer layer as the outermost layer and on the side opposite an emulsion layer, by means of an automatic developing apparatus. The apparatus has a drying operation part which is equipped with two or more hot rollers arranged so that the silver halide photographic material may be wrapped partly around each of the hot rollers in turn and the contact between the rollers and the material may alternate between the front surface and the back surface of the photographic material, whereby the moisture in the photographic material evaporates from the surface areas when they are not in contact with the hot rollers. This method results in improvements in the drying characteristics of the photographic material and the transportation characteristics of the automatic developing apparatus.

Method for processing silver halide photographic materials using an

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Kanagawa, Japan

Kunio Ishigaki