Dai Nippon Toryo Co., Ltd.

Seiji Hamanaka

Akira Iwasawa

Hiroki Hayashi

Yasuhiro Kawai

Takeshi Fujimoto

Keita Aoki

Disclosed is an ink composition having excellent storage stability and capable of printing printed material having excellent metal tone. This active energy ray curable ink composition includes at least a scaly metal pigment, a polymerizable compound, and a photopolymerization initiator. The scaly metal pigment has a 50% volume average diameter of at least 0.05 &#x3bc;m and less than 0.5 &#x3bc;m, an average thickness of at least 5.0 nm and less than 50.0 nm, and a non-reactive solvent content of 0.01%-5.00% by mass.

Ink composition

A metallic ink composition for inkjet printing for a polyvinyl chloride substrate, can form printed matter having superior mirror gloss and favorable scratch resistance, and is able to prevent nozzle clogging during inkjet printing, and more specifically pertains to a metallic ink composition that is for inkjet printing for a polyvinyl chloride substrate and that is characterized by containing at least a polyester resin (a) having a weight average molecular weight of no greater than 12,000, a metallic pigment dispersion (b) resulting from dispersing a evaporated aluminum pigment only in an organic solvent, and an organic solvent (c) that has solubility with respect to the polyvinyl chloride substrate.

Metallic ink composition for inkjet printing for polyvinyl chloride substrate

According to a water-based composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, there is provided a water-based coating composition being capable of easily controlling the gloss of a coating film applied on an object to be coated, having good storage stability, and being excellent in wetting properties to an object to be coated and continuous discharge stability without causing nozzle clogging.

Growing community of inventors

Tochigi, Japan

Seiji Hamanaka