Patent ID: 8894761

Claim:
Emulsion-based thermal inkjet inks, including: a non-solvent based ultraviolet (UV) ink dispersion, including: a high boiling point carrier fluid present in an amount ranging from about 1 wt % to about 20 wt %; a colorant consisting of a pigment present in an amount ranging from 1 wt % to 10 wt %; a dispersant present in an amount ranging from 0.5 wt % to 10 wt %; vesicles comprising: a low boiling point expellant fluid present in an amount ranging from 1 wt % to 15 wt %; and a surfactant present in an amount ranging from 1 wt % to 15 wt %, the surfactant comprising molecules, each having a head with an affinity to the expellant fluid and a tail with an affinity to the carrier fluid, the vesicles having a core defined by the heads of the surfactant molecules, the expellant fluid contained in the core, with the vesicles dispersed in the carrier fluid; a monomer present in an amount ranging from 40 wt % to 80 wt %; a photoinitiator present in an amount ranging from 1 wt % to 10 wt %; and a viscosity modifying agent present in an amount ranging from 1 wt % to 20 wt %.