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US 12,735,593 B2Granted
Solvent-based inkjet inks
AssigneeKao Corporation
InventorsYuta Matsumoto, Todd Tritcak
Life of this patent
Estimating the term…
Abstract
An inkjet ink that includes (A1) a terpene resin, and (B) a solvent system containing (B1) a ketone solvent having a boiling point of less than 120° C. and (B2) dioxolane, the inkjet ink being characterized by extended decap times and long throw distance. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.
Claims16
An inkjet ink, comprising:
- (A1) a terpene resin that is a homopolymer made from α-pinene;
- and
- (B) a solvent system comprising (B1) a ketone solvent having a boiling point of less than 120° C. and (B2) dioxolane, wherein
- the terpene resin (A1) is present in an amount of 0.1 to 3 wt. %, based on a total weight of the inkjet ink;
- the ketone solvent (B1) is present in an amount of 1 to 90 wt. %, based on a total weight of the inkjet ink;
- the dioxolane (B2) is present in an amount of 2 to 90 wt. %, based on a total weight of the inkjet ink;
- a combined weight of the ketone solvent (B1) and the dioxolane (B2) is at least 80 wt. %, based on a total weight of the solvent system (B);
- and
- a weight ratio of the dioxolane (B2) to the ketone solvent (B1)((B2):(B1)) is 0.05:1 to 30:1.
6 more elements
Dependencies are inferred from the claim text.