Riso Kagaku Corporation

Sayako Arai

Hirotaka Yamamoto

Shunsuke Uozumi

Ami Terakado

Yoshihisa Morita

Shinji Tabuchi

Shinichiro Shimura

Akiko Hayashi

Takahisa Yamazaki

Mamoru Saito

Yuki Urano

Hideki Imanishi

Shin-ichiro Shimura

The present invention discloses a method for producing a decorative article which includes a step of performing inkjet printing onto the surface of a humidity-conditioning base material using an aqueous inkjet ink containing at least water, a water-dispersible resin and a colorant, and also discloses a device for producing the decorative article.

Method and device for producing decorative article, and decorative article

Disclosed is an aqueous inkjet ink for a humidity-conditioning base material, the ink comprising at least a colorant, a water-dispersible resin and water, and the water-dispersible resin comprising at least one water-dispersible urethane resin and at least one water-dispersible (meth)acrylic resin or water-dispersible styrene/(meth)acrylic resin.

Aqueous inkjet ink for humidity-conditioning base material and method for producing decorated humidity-conditioning base material

Disclosed is an aqueous inkjet ink for a humidity-conditioning base material, the ink comprising water, a water-dispersible resin, a colorant, and at least one surfactant selected from among acetylene glycol-based surfactants and silicone-based surfactants.

An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including two or more aqueous inkjet inks that include a black ink, wherein among the charge density Cd values measured by the streaming potential method for the two or more aqueous inkjet inks, the Cd value (CdK) for the black ink is the highest, and the absolute value of the difference between the Cd value (CdK) for the black ink and the Cd value (Cd2) for the aqueous inkjet ink having the second highest Cd value is 80 &#x3bc;eq/g or greater. A method for producing a printed item is also disclosed.

Aqueous inkjet ink set for textile printing and method for producing printed item

A surface treatment liquid for a porous sound-absorbing material,

Surface treatment liquid for porous sound-absorbing material, aqueous inkjet ink for porous sound-absorbing material, and uses therefor

In an inkjet printing system using an ink which includes a coloring material dispersed in a solvent, it is aimed that printing density is improved by thickening the ink on a printing medium so as to stay the coloring material on the surface of the printing medium. An inkjet printing method is provided, in which printing is performed by ejecting one of first and second inks onto a printing medium, and then successively ejecting the other ink so as to overlay it on the one ink, wherein the first ink includes at least a first organic solvent and an &#x3b1;,&#x3b2;-unsaturated carbonyl compound, the second ink includes at least a second organic solvent and an organic compound reactive as a nucleophile with the &#x3b1;,&#x3b2;-unsaturated carbonyl compound, and at least one of the first and second inks includes a coloring material.

Inkjet printing method and ink set

In an inkjet printing system using an emulsion ink, it is aimed that printing density is improved particularly for a normal paper. An inkjet printing method is provided, in which printing is performed by ejecting one of first and second inks onto a printing medium, and then successively ejecting the other ink so as to overlay it in the one ink, wherein the first ink is a water-in-oil (W/O) emulsion ink comprising the coloring material which is provided with an acidic group on a surface in the water phase, and the second ink is a water-in-oil (W/O) emulsion ink comprising a polyvalent metal salt in the water phase. Preferable acidic group is carboxylic group, sulfuric acid group and phosphoric group. Preferable polyvalent metal salt is a salt composed of metal ions such as Ca, Cu, Ni, Mg, Zn, Ba, Al, Feand Cr.

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Ibaraki, Japan

Sayako Arai