Patent ID: 8920552

Claim:
A thermal ink jet ink composition comprising: a volatile organic solvent; a binder resin, wherein the binder resin is present in an amount from 0.3% to 8% by weight of the ink composition; a dye; a humectant in an amount from 1% to 40% by weight of the thermal ink jet ink composition, and an additive for extending the decap time of the thermal ink jet ink composition, wherein the additive is present in an amount greater than 0.5% by weight of the thermal ink jet ink composition, wherein the additive is selected from the group consisting of aliphatic hydrocarbons, drying oils and mixtures thereof, wherein the additive does not phase separate from the ink jet composition during application of the ink to a substrate in thermal ink jet printing, wherein the ink composition has a decap time of greater than 30 seconds in a thermal ink jet printer, and wherein if water is present, it is present in amount up to 10% by weight of the ink composition.