Ink composition
AssigneeSeiko Epson Corporation
InventorsTakashi OYANAGI, Keitaro Nakano
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Abstract
The present invention provides an ink composition comprising at least a polymerizable compound, a photo-polymerization initiator and a polymerization accelerator, wherein the polymerizable compound comprises en N-vinyl compound, the photo-polymerization initiator comprises two or more compounds selected from the group consisting of bisacylphosphine oxides, monoacylphosphine oxides and α-amino ketones, and the polymerization accelerator comprises fine particles having a polymerizable functional group. The ink composition of the invention may be a transparent ink composition containing no coloring material. The ink composition of the invention may further contain a fluorescent whitening agent.
Claims7
1-15. (canceled)
An ink composition for inkjet recording, comprising at least:
- a polymerizable compound;
- a photo-polymerization initiator having an absorption wavelength in the range of 300 nm to 450 nm;
- and
- a fluorescent whitening agent having an absorption wavelength in the range of 200 nm to 400 nm and a light-emission wavelength in the range of 400 nm to 600 nm, wherein the photo-polymerization initiator has an absorption wavelength band that overlaps with a light-emission wavelength band of the fluorescent whitening agent, and
- wherein the fluorescent whitening agent comprises a benzoxazole derivative.
Dependencies are inferred from the claim text.