Radiation Curable Ink Composition For Ink Jet
AssigneeSeiko Epson Corporation
InventorsMasakazu ORII, Toru SAITO, Midori SEKINE, Yusuke FUJISAWA
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Abstract
A radiation curable ink composition for ink jet according to one embodiment of the present disclosure contains a polymerizable compound and a photopolymerization initiator, where the photopolymerization initiator includes (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide, a content of the (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide is 3% by mass or more with respect to a total amount of the ink composition, the polymerizable compound includes a monofunctional polymerizable compound, and a content of the monofunctional polymerizable compound is 70% by mass or more with respect to a total amount of the polymerizable compound.
Claims14
A radiation curable ink composition for ink jet, comprising:
- a polymerizable compound;
- and
- a photopolymerization initiator, wherein
- the photopolymerization initiator includes (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide,
- a content of the (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide is 38 by mass or more with respect to a total amount of the ink composition,
- the polymerizable compound includes a monofunctional polymerizable compound, and
- a content of the monofunctional polymerizable compound is 70% by mass or more with respect to a total amount of the polymerizable compound.
Dependencies are inferred from the claim text.