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US 10,590,293 B2Granted
Ultraviolet (UV) curable inkjet ink compositions
AssigneeHewlett-Packard Development Company, L.P.
InventorsBenjamin Abelovski, Tienteh Chen
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Abstract
An example of an ultraviolet (UV) curable inkjet ink composition includes a pigment dispersed by an anionic polymeric dispersant, an organic co-solvent, polyvinylpyrrolidone, a photoinitiator, a UV radiation curable polyurethane, and a balance of water. The polyvinylpyrrolidone has a number average molecular weight ranging from about 10,000 to about 40,000.
Claims13
An ultraviolet (UV) curable inkjet ink composition, comprising:
- a pigment dispersed by an anionic polymeric dispersant;
- an organic co-solvent;
- polyvinylpyrrolidone having a number average molecular weight ranging from about 10,000 to about 40,000;
- an anti-kogation agent;
- a photoinitiator;
- a UV radiation curable polyurethane formed from:
- a polyisocyanate;
- an acrylate or methacrylate, the acrylate or methacrylate having at least two hydroxyl functional groups and having an acrylate functional group or a methacrylate functional group;
- an other acrylate or methacrylate, the other acrylate or methacrylate having one hydroxyl functional group or one amino functional group;
- and
- a hydroxyl or an amine containing a sulfonate functional group, wherein the hydroxyl or the amine containing the sulfonate functional group is selected from the group consisting of taurine and aminoethylaminopropylsulfonate;
- and
- a balance of water.
10 more elements
Dependencies are inferred from the claim text.