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US 9,828,507 B2Granted
Printing ink composition
AssigneeSeiko Epson Corporation
InventorsYasunari Ikeda, Akio Ito
Life of this patent
Estimating the term…
Abstract
A printing ink composition includes a disperse dye, a surfactant, a water soluble dye, and a dispersant, in which an IOB value A of the disperse dye, an IOB value B of the surfactant, and an IOB value C of the water soluble dye satisfy the following Equation (1), A<B<C (1), and the IOB value B is 1.0 to 2.0.
Claims4
A printing ink composition comprising:
- a disperse dye;
- a surfactant;
- a water soluble dye;
- and
- a dispersant,
- wherein the dispersant includes a formalin condensate of a lignin sulfonic acid,
- an IOB value A of the disperse dye, an IOB value B of the surfactant, and an IOB value C of the water soluble dye satisfy the following Equation (1),
- A<B<C (1), and
- the IOB value B is 1.0 to 2.0.
6 more elements
Dependencies are inferred from the claim text.