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US 12,595,385 B2Granted
Inkjet inks
AssigneeKao Corporation
InventorsYuta Matsumoto, Daniel Sandker
Life of this patent
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Abstract
An inkjet ink that includes (A) a terpene phenol resin and (B) a compound of formula (I) wherein R is an alkyl group having 8 to 22 carbon atoms or an alkenyl group having 8 to 22 carbon atoms, n is 0 or 1, p is an integer from 1 to 40, and q is an integer from 1 to 40. 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.
Claims19
An inkjet ink, comprising:
- (A) a terpene phenol resin;
- (B) a compound of formula (I)
- wherein:
- R is an alkyl group having 8 to 22 carbon atoms or an alkenyl group having 8 to 22 carbon atoms,
- n is 0 or 1,
- p is an integer from 1 to 40, and
- q is an integer from 1 to 40;
- (C) an alkanolamine which is at least one selected from the group consisting of propanolamine, isopropanolamine, and triethanolamine;
- (D) ethanol;
- and
- (E) 1-propanol, wherein
- a combined weight of ethanol (D) and 1-propanol (E) ((D)+(E)) in the inkjet ink is 50 to 95 wt. %, based on a total weight of the inkjet ink,
- a weight ratio of ethanol (D) to 1-propanol (E) ((D):(E)) is 3:1 to 4:1, and
- the inkjet ink is substantially free of 1-butanol.
11 more elements
Dependencies are inferred from the claim text.