Sakata Inx Corporation

Aika Nishimoto

Keishiro Hishinuma

Naoki Omi

Yoshihiro Hisanaga

An object is to obtain an electron beam-curable printing ink composition that maintains such basic properties as curability, adhesion, scratch resistance, etc., without containing any traditional polymerization initiator. As a solution, an electron beam-curable printing ink composition is provided that contains dimethylpolysiloxane by 0.1 to 3.5% by mass relative to the total composition.

Electron beam-curable printing ink composition and electron beam-curable overprint varnish composition

To provide an active energy ray-curable ink composition that contains high rates of raw materials derived from biomass and can maintain basic characteristics, such as compatibility. Provided is an active energy ray-curable ink composition containing a pigment, a compound having ethylenically unsaturated bonds, and a rosin-modified alkyd resin, wherein the rosin-modified alkyd resin is a condensed polymer of an acid ingredient containing a resin acid, a fatty acid, and a polybasic acid with a polyhydric alcohol, and has a solubility parameter (sp) value of 9.0 to 11.0 (cal/cm)as measured by turbidimetric titration and an acid value of 1 to 50 mg KOH/g.

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Osaka, Japan

Aika Nishimoto