Seiko Epson Corporation

Fujifilm Corporation

Orient Chemical Industries, Ltd.

Iko Epson Corporation

Hiroshi Fukumoto

Hiroaki Kida

Keitaro Nakano

Kazuhiko Kitamura

Chigusa Sato

Toru Saito

Hiroki Nakane

Shinichi Kato

Koki Hirata

Akihito Sao

Takayoshi Kagata

Takashi Oyanagi

Tetsuya Aoyama

Kazuhiko Hara

Miharu Kanaya

Yasuhiro Oki

Toshiyuki Yoda

Masahiro Hanmura

Takeshi Yano

Masanori Takemura

Toshiaki Kakutani

Yoshiharu Yabuki

Toyohiko Mitsuzawa

Jun Ito

Toshiki Fujiwara

Hiroko Hayashi

Yusuke Mizutaki

Katsuko Aoki

Yasunari Ikeda

Shuji Sugawara

Miho Nakamura

Shugo Hattori

Yoshihiro Sawatari

Makiko Matsui

Shigeki Kawada

Masahiro Oaklit 102 Hanmura

Kszuhiko Kitamura

The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I):CH═CR—COOR—O—CH═CH—R  (I)(wherein Ris a hydrogen atom or a methyl group, Ris a divalent organic residue having 2 to 20 carbon atoms, and Ris a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.

Photocurable ink composition for ink jet recording and ink jet recording method

The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I):CH&#x2550;CR&#x2014;COOR&#x2014;O&#x2014;CH&#x2550;CH&#x2014;R&#x2003;&#x2003;(I)(wherein Ris a hydrogen atom or a methyl group, Ris a divalent organic residue having 2 to 20 carbon atoms, and Ris a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.

An ink jet recording apparatus includes a discharge head including a nozzle discharging ink to a recording medium and a cap capable of covering the nozzle of the discharge head. The ink contains water, a colorant, and an organic compound which is solid at 25.0&#xb0; C. and which has an octanol/water distribution coefficient of 0.0 or less. The cap includes no ink absorber.

Ink jet recording apparatus

Provided is a three-dimensional shaped article with relatively high strength and relatively high accuracy. A sintering and shaping method includes: a shaping layer forming process of forming a shaping layer by using a sintering and shaping material in which inorganic particles are included; a process of applying a liquid binding agent, in which a thermoplastic resin and inorganic particles are included, to a desired region of the shaping layer; a process of curing the liquid binding agent, which is applied, to form a shaping cross-sectional layer (shaping portion); a process of removing a region (non-shaping portion) of the shaping layer to which the liquid binding agent is not applied; and a process of heating the shaping cross-sectional layer that is laminated for a sintering treatment.

Sintering and shaping method

Provided is an ink jet recording method including: discharging an ultraviolet ray-curable ink, which has a viscosity at 20&#xb0; C. of 25 mPa&#xb7;s or less and an average equivalent of polymerizable unsaturated double bond of 100 to 150, from a head onto a recording medium at a discharge temperature of 30&#xb0; C. to 40&#xb0; C.; and irradiating the ultraviolet ray-curable ink, attached onto the recording medium, with ultraviolet rays emitted from a light source to cure the ultraviolet ray-curable ink.

Ink jet recording method and ink jet recording apparatus

An ink set which is used for sublimation transfer includes a first ink, and a second ink. The first ink has a color after transfer of |a*|&#x2264;10 and |b*|&#x2264;10 in a CIELAB color space, and contains a first disperse dye dispersed by a first dispersion resin. The second ink has a color after transfer of |a*|&#x3e;10 or |b*|&#x3e;10 in the CIELAB color space, and contains a second disperse dye dispersed by a second dispersion resin. A glass transition temperature of the first dispersion resin and is different than that of the second dispersion resin.

Ink set and recording method

An ink jet ink composition includes a sublimation dye, a dispersant for the sublimation dye, and polyether siloxane having a weight average molecular weight of 1000 or more and having 5 or more siloxane repeating units.

Ink jet ink composition and recording method

A photocurable ink composition includes polymerizable compounds and a photopolymerization initiator. The polymerizable compounds include vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I):CH&#x2550;CR&#x2014;COOR&#x2014;O&#x2014;CH&#x2550;CH&#x2014;R&#x2003;&#x2003;(I)(wherein, Rrepresents a hydrogen atom or a methyl group; Rrepresents a divalent organic residue having 2 to 20 carbon atoms; and Rrepresents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms), dipropylene glycol di(meth)acrylate, and monofunctional (meth)acrylate having an aromatic ring skeleton. The ink composition includes a coloring material.

Photocurable ink composition, recording method, recording apparatus, photocurable ink jet recording ink composition, and ink jet recording method

Provided is a three-dimensional shaped article with relatively high strength and relatively high accuracy. A sintering and shaping method includes: a shaping layer forming process of forming a shaping layer () by using a sintering and shaping material in which inorganic particles () are included; a process of applying a liquid binding agent (), in which inorganic particles () are included, to a desired region of the shaping layer (); a process of curing the liquid binding agent (), which is applied, to form a shaping cross-sectional layer (shaping portion ()); a process of removing a region (non-shaping portion ()) of the shaping layer () to which the liquid binding agent () is not applied; and a process of heating the shaping cross-sectional layer that is laminated for a sintering treatment.

Provided is an ink jet method including cooling an attachment body by a cooling device; ejecting an ultraviolet curable composition from an ejection head to the attachment body having a surface temperature of 45&#xb0; C. or lower by the cooling device to be attached to the attachment body; and irradiating the ultraviolet curable composition attached to the attachment body with ultraviolet light and curing the ultraviolet curable composition, in which a viscosity of the ultraviolet curable composition attached to the attachment body when being subjected to the irradiating with the ultraviolet light at a surface temperature of the attachment body is 6 mPa&#xb7;s or greater.

Ink jet method and ink jet apparatus

A three-dimensional shaping composition of this invention is a three-dimensional shaping composition which is used for producing a three-dimensionally shaped article by laminating layers and contains particles having a hydrophilic surface and water-soluble monomers having a hydroxyl group. The water-soluble monomer is preferably at least one selected from the group consisting of 4-hydroxybutyl acrylate, 2-hydroxybutyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, and phenol epoxy acrylate.

Three-dimensional shaping composition, method for producing three-dimensionally shaped article, and three-dimensionally shaped article

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Shiojiri, Japan

Hiroshi Fukumoto