Toyo Ink Sc Holdings Co., Ltd.

Toyo Ink Co., Ltd.

Denso Corporation

Toyo Ink Mfg. Co., Ltd.

Toyo Ink Mfg., Ltd.

Toyocolor Co., Ltd

Yukitoshi Takahashi

Masahiro Sugihara

Norio Suzuki

Atsushi Yoda

Shinichi Sato

Takashi Aoki

Kazuhiro Jonai

Satoshi Washio

Masayoshi Utsugi

Yasuo Yoshihiro

Osamu Ina

Kazunori Shigemori

Teruhiko Iwase

Takaaki Koike

Sachiko Kinoshita

Yoshiyuki Sakai

Natsuko Kokubo

Daisuke Nishida

Joji Mikami

Yasutaka Itimura

Akiko Nishina

Masataka Utsugi

To provide an aqueous ink for inkjet which has superior printability to typical printing media, particularly media having high glossiness, such as coated paper, art paper, and vinyl chloride sheets, and which is capable of forming a high quality image by printing. An aqueous ink for inkjet, comprising a pigment, a pigment dispersing resin, an organic solvent, and water, wherein: the organic solvent contains (A) a water-soluble organic solvent having a boiling point of 100&#xb0; C. or higher and 180&#xb0; C. or lower, and (B) an organic solvent having a boiling point of 200&#xb0; C. or higher and 280&#xb0; C. or lower, and having a surface tension of 20 mN/m or more and 30 mN/m or less.

Aqueous ink for inkjet and printing method

To provide an ink-jet white ink of active energy ray-curable type, wherein the white ink has high printing stability and good hiding property, and is particularly suitable for printing on the single-pass ink-jet printing system. An ink-jet white ink of active energy ray-curable type, comprising titanium oxide, a pigment dispersant, and a polymerizable compound, wherein the content of the titanium oxide is from 15 to 30% by weight with reference to the total weight of the ink, and wherein the weight average particle diameter of the titanium oxide is 180 to 250 nm. In an embodiment of the ink, the titanium oxide is titanium oxide that surface is treated with silica and the pigment dispersant comprises a basic dispersant.

White ink for ink-jet

Provided is an inkjet pigment ink which contains a pigment that is selected from the group consisting of C.L. Pigment Yellow 74 having a transmittance of 70% or more, C.I. Pigment Red 269 having a transmittance of 70% or more, C.I. Pigment Red 122 having a transmittance of less than 70% and C.I. Pigment Yellow 150; a water-soluble solvent that is selected from the group consisting of glycol ethers and diols; water; and a pigment dispersing resin that is a copolymer which contains a monomer A, a monomer B and a monomer C as unit components. The monomer A is an alkyl (meth)acrylate ester; the monomer B is styrene, &#x3b1;-methyl styrene or benzyl (meth)acrylate; and the monomer C is (meth)acrylic acid.

Inkjet pigment ink

An aqueous inkjet ink composition comprising a pigment, a pigment-dispersing resin, resin fine particles (A), water, and hydrophilic solvents (B), the resin fine particles (A) being formed by emulsion polymerizing ethylenically unsaturated monomers including: 20% to 80% by weight of an aromatic ethylenically unsaturated monomer (C) that does not have an ionic functional group; 0.6% to 6% by weight of water-soluble ethylenically unsaturated monomers (F) consisting of 0.5% to 3% by weight of a sulfonic acid group-containing ethylenically unsaturated monomer (D) and 0.1% to 3% by weight of a nonionic water-soluble ethylenically unsaturated monomer (E); and 0.1% to 10% by weight of a crosslinkable ethylenically unsaturated monomer (G), and the hydrophilic solvents (B) including a glycol-based solvent (H) and an ethylene glycol ether-based solvent (I) is provided.

Aqueous inkjet ink composition

Provided is an active energy ray-curable inkjet ink comprising a pigment and polymerizable monomers that is superior in nozzle ejection stability, adhesiveness to recording medium and storage stability, wherein the polymerizable monomers comprise N-acryloyloxyethyl hexahydrophthalimide.

Active energy ray-curable inkjet ink composition

A display panel has a resin substrate and a printed layer formed on at least a part of the resin substrate through inkjet printing. The printed layer is formed from cured products of UV-curable inks each containing UV-curable monomers which are polymerized and cured by UV irradiation, and the printed layer has at least two such cured products having different pencil hardness values.

Display panel, method for producing the same and composition of ink used by the method for producing the same

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Tokyo, Japan

Yukitoshi Takahashi