Fuji Photo Film Company, Limited

Masayuki Iwasaki

Fumiaki Shinozaki

Minoru Maeda

Hirofumi Mitsuo

Morimasa Sato

Tsutomu Watanabe

Sadao Fujikura

Yuichi Wakata

Koji Inoue

Akira Umehara

Koji Tamoto

Hiroshi Misu

Kazuo Maemoto

Tadao Toyama

Takekatsu Sugiyama

Yoshimasa Aotani

Akira Nagashima

Shizuo Miyano

Shigeru Sato

Ken Iwakura

Noriyuki Inoue

Toshimasa Usami

Kouichi Kawamura

Sadao Ishige

Shun-ichi Ishikawa

Kesanao Kobayashi

Minoru Wada

Hideaki Ito

Mikio Totsuka

Teruo Nagano

Hiroshi Kamikawa

Mitsuru Koike

Takayuki Matsumoto

Tetsuo Takeuchi

Yasunori Takata

Yasuo Inoue

Hirokazu Kitou

Haruhiko Yoshino

The present invention provides a heat-sensitive recording material comprising a substrate and a heat-sensitive recording layer provided thereon, the layer comprising a color forming system that combines an electron-donating colorless dye and an electron-accepting compound, in which the electron-accepting compound is a compound represented by the formula R-Ph-SOR(wherein Rrepresents a hydroxyl group or an alkyl group, Rrepresents -Ph, &#x2014;NH-Ph, -Ph-ORor &#x2014;NH&#x2014;CO&#x2014;NH-Ph, Rrepresents an alkyl group, and Ph represents a phenyl group), and at least the heat-sensitive recording layer is formed by curtain-coating a coating solution for the heat-sensitive recording layer.

Thermal recording material

A thermal recording material having a support and, formed thereon, a thermal coloring layer containing an electron donating colorless dye and an electron accepting compound, wherein the electron accepting compound comprises 4-hydroxybenzenesulfoneanilide and the support comprises a used paper pulp as a primary component; the thermal recording material which further comprises at least one of calcium carbonate of calcite type, amorphous silica and aluminum hydroxide as an inorganic pigment; and the thermal recording material wherein the electron donating colorless dye comprises a specific colorless dye and the recording material is formed through the use of a liquid pigment dispersion having a pH of 7 to 10.

A thermosensitive recording material of the present invention has a thermosensitive color developing layer on a support, and the thermosensitive color developing layer contains at least an electron-donating colorless dye and 4-hydroxybenzenesulfone anilide as an electron-accepting compound. The thermosensitive recording material of the invention meets any one of the following conditions: the thermosensitive recording surface of the thermosensitive recording material has an Oken smoothness of at least 300 seconds; 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)-butane and/or 1,1,3-tris(2-methyl-4-hydroxy-5-cyclohexyl-phenyl)butane is contained as an image stabilizer; at least one selected from 2-anilino-3-methyl-6-di-n-butylaminofluorane and 2-anilino-3-methyl-6-di-n-amylaminofluorane is contained as the electron-donating colorless dye; a sensitizer and 2-anilino-3-methyl-6-(N-ethyl-N-p-benzyl)aminofluorane as the electron-donating colorless dye are contained; and the image stabilizer and at least one selected from 2-anilino-3-methyl-6-di-n-butylaminofluorane, 2-anilino-3-methyl-6-di-n-amylaminofluorane, and 2-anilino-3-methyl-6-(N-ethyl-N-p-benzyl)aminofluorane as the electron-donating colorless dye are contained.

Thermosensitive recording material

(B) A thermosensitive recording material comprises a thermosensitive recording layer containing an electron-donating colorless dye, an electron-accepting compound which develops color upon a reaction with the electron-donating colorless dye and a sensitizer, wherein the thermosensitive recording material satisfies at least one of the following conditions (1) to (3).

Heat-sensitive recording material

A heat-sensitive recording material includes a support having successively disposed thereon: a heat-sensitive color-forming layer containing an electron-donating colorless dye and an electron-accepting compound; and a protective layer; wherein the heat-sensitive color-forming layer contains a water-soluble polymer and 4-hydroxybenzenesulfonanilide as the electron-accepting compound, and the protective layer contains at least one inorganic pigment selected from aluminum hydroxide, kaolin and amorphous silica. The electron-donating colorless dye is preferably at least one selected from 2-anilino-3-methyl-6-di-n-butylaminofluoran, 2-anilino-3-methyl-6-di-n-amylaminofluoran and 2-anilino-3-methyl-6-(N-ethyl-N-p-benzyl)aminofluoran.

A positive photoresist transfer material, wherein an alkali-soluble thermoplastic resin layer, an intermediate layer and a positive photoresist layer are successively applied on an adhesive surface of a temporary support, and adhesion between the positive photoresist layer and the intermediate layer is less than adhesion between other layers or surfaces.

Positive photoresist transfer material and method for processing surface of substrate using the transfer material

A heat-sensitive recording material including, on a support, a heat-sensitive color-developable layer containing an electron-donating colorless dye and an electron-accepting compound, wherein the electron-accepting compound contains a compound represented by R&#x2014;Ph&#x2014;SOR, and an adhesive strength when an adhesive sheet such as a revenue stamp is affixed to a recording face of a heat-sensitive recording paper made of the heat-sensitive recording material is larger than a given value, and a center line average roughness Ra75 of the heat-sensitive recording face is 2.0 &#x3bc;m or less.

A heat-sensitive recording material includes a support having disposed thereon a heat-sensitive color-forming layer that includes an electron-donating leuco-dye, an electron-receiving compound and an UV absorbent, wherein the layer contains 4-hydroxybenzenesulfonanilide as the electron-receiving compound. Because the layer includes 4-hydroxybenzenesulfonanilide, the heat-sensitive recording material has high sensitivity and improved image preservability, chemical resistance and sticking resistance.

A thermal recording material having a thermal color-forming layer which contains an electron-donating leuco-dye and an electron-receiving compound, and a protective layer formed in that order on a support. The protective layer of the material contains an inorganic dye and at least one of an amide-denatured polyvinyl alcohol and a diacetone-denatured polyvinyl alcohol.

A heat-sensitive recording material which includes, on a substrate, at least one heat-sensitive color developing layer containing an electron-donating colorless dye, 2,4-bis(phenylsulfonyl)phenol as an electron-accepting compound, and a sulfonic acid-modified polyvinyl alcohol and at least one modified polyvinyl alcohol other than the sulfonic acid-modified polyvinyl alcohol as binders, an outermost layer of the heat-sensitive recording material containing a lubricant.

A heat-sensitive recording material comprising a substrate and a heat-sensitive coloring layer containing a colorless electron-donating dye, an electron-accepting compound including at least 4,4&prime;-dihydroxydiphenylsulfone, and a sensitizer comprising 2-benzyloxynaphthalene and aliphatic monoamide in the mass ratio in a range of 30/70 to 70/30.

A heat-sensitive recording material in which a heat-sensitive color-developing layer containing at least an electron-donating colorless dye, an electron-accepting compound, a sensitizer and preferably an image stabilizer is disposed on a support, the heat-sensitive color-developing layer containing (1) 4-hydroxybenzenesulfonanilide as the electron-accepting compound and (2) 2-benzyloxynaphthalene and ethylenebisstearic acid amide or methylolstearic acid amide as the sensitizer, and (3) the 2-benzyloxynaphthalene (x) to ethylenebisstearic acid amide or methylolstearic acid amide (y) mass ratio (x/y) being within 95/5 to 40/60 range.

A heat-sensitive recording material formed of a support having disposed thereon a heat-sensitive color-forming layer that includes an electron-donating leuco-dye and an electron-receiving compound, with the heat-sensitive color-forming layer including, N-(4-hydroxyphenyl)-p-toluenesulfonamide as the electron-donating leuco-dye. The heat-sensitive color-forming layer may include 2-benzyloxynaphthalene or a combination of 2-benzyloxynaphthalene and methylolstearic acid amide as a sensitizer, calcite-type precipitated calcium carbonate light and/or aluminium hydroxide as an inorganic pigment, polyvinyl alcohol having a degree of saponification of 85 to 99 mol % and a degree of polymerization of from 200 to 2000 as an adhesive, and 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane and/or 1,1,3-tris(2-methyl-4-hydroxy-5-cyclohexylphenyl)butane as an image stabilizer. When the layer includes 2-benzyloxynaphthalene and methylolstearic acid amide, a ratio (x/y) of 2-benzyloxynaphthalene (x) to methylolstearic acid amide (y) is preferably 95/5 to 40/60. The support can be essentially waste pulp. The heat-sensitive recording material of the present invention may additionally include a protective layer including an inorganic pigment and a water-soluble polymer.

A pixel sheet provided with black matrix is prepared by the steps of: preparing a pixel sheet by forming pixels on a light-transmissive support under the condition that a space area is left between the pixels; covering the pixels and the space area of the pixel sheet with a photosensitive black resin layer; exposing to light the pixel sheet having the black resin layer on the side of the support; bringing the light-exposed pixel sheet in contact with a developing solution to peel the black resin layer on the pixels off, while keeping the black resin layer on the support in the space area; and heating the developed pixel sheet so that the black resin layer in the space area is fully cured.

Preparation of a pixel sheet provided with black matrix

A photosensitive sheet favorably employable for covering a pixel sheet is composed mainly of a support and a photosensitive colored resin layer containing a dye whose color disappears by application of heat or light. The coverage of the pixel sheet can be performed by combining the pixel sheet and the photosensitive sheet which has been examined for checking evenness of the surface of the colored resin layer under the condition that the pixels are brought into contact with the colored resin layer to give a combined body; separating the support of the photosensitive sheet from the combined body, leaving the colored resin layer on the pixel sheet; exposing to light the photosensitive colored resin layer on the pixel sheet so as to cure the photosensitive colored resin layer and possibly to make the resin layer colorless; and heating the light-exposed colored resin layer so that the colored resin layer is made colorless or the curing further proceeds.

Growing community of inventors

Shizuoka, Japan

Masayuki Iwasaki