Sakata Inx Corporation

Jun Kinjoh

Okinori Nakashima

Koki Ogasahara

Daigo Shiozaki

Takuya Myose

Yoshiyuki Aoki

Ryohei Miyake

An object of the present invention is to provide a photocurable aqueous ink composition for inkjet printing that is excellent in all aspects including miscibility when components excluding pigments and pigment dispersants are mixed, curability during printing, adhesion property and water resistance of a printed coating film. As a solution, provided is a photocurable aqueous ink composition for inkjet printing including: water by 10.0 to 45.0% by mass in the photocurable aqueous ink composition for inkjet printing; a colorant; a water-soluble polymerizable compound containing N-monosubstituted acrylamide; and a photoinitiator.

Photocurable aqueous ink composition for inkjet printing

A continuous-type inkjet ink composition includes a polyvinyl butyral resin (Resin 1) and a rosin ester resin (Resin 2), and organic solvents, wherein the content of Resin 1 in the inkjet ink composition is 1.0 to 8.0 percent by mass, and the content ratio of Resin 1 and Resin 2 satisfies 'Resin 1:Resin 2=20:1 to 10:8' based on ratio by mass, and the total quantity of organic solvents regulated by industrial health and safety regulation is 5 percent by mass or less in the inkjet ink composition. The composition demonstrates excellent discharge stability and jetting property as well as excellent adhesion to various types of base printing materials including polyolefin films with no surface treatment.

Continuous-type inkjet ink composition

An object is to provide a continuous inkjet ink composition that has excellent storage stability and anticorrosion effect on a metal member, and that allows printing with good image quality. As a solution, a continuous inkjet ink composition is provided that includes a pigment, a resin, a metal salt of thiocyanic acid at 0.05 to 1.7% by mass in the composition, and tetraalkylammonium hexafluorophosphate at 0.05 to 2.7% by mass in the composition.

Continuous inkjet ink composition

An inkjet printing device for multi-color printing includes: multi-color inkjet nozzles that move in the direction perpendicular to the moving direction of the target base printing material and also in the direction parallel to the surface of the target base printing material; plasma ejection ports provided downstream of the multi-color inkjet nozzles in a manner oriented facing the surface of the multiple colored inks printed on the target base printing material; and an electron beam irradiation part located on the downstream side of the inkjet nozzles and plasma ejection ports, in a manner oriented facing the printed surface of the target base printing material.

Plasma electron beam treatment inkjet printing device

A non-aqueous magenta ink composition for ink jet printing comprising a pigment, a pigment dispersant, a binder resin and an organic solvent, wherein the pigment comprises C.I. Pigment Red 254 and a red pigment having a quinacridone skeleton, and wherein a total amount of the C.I. Pigment Red 254 and the red pigment having a quinacridone skeleton is not less than 50% by mass in the pigment.

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Osaka, Japan

Jun Kinjoh