Thermal ink jet ink composition
First Claim
Patent Images
1. 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, andan 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.
0 Assignments
0 Petitions
Accused Products
Abstract
A thermal ink jet ink composition include a volatile organic solvent, a binder resin, a dye, a humectant in an amount less than 40% by weight of the thermal ink jet ink composition, and an additive for extending the decap time. The additive is present in an amount greater than 0.1% by weight of the thermal ink jet ink composition. The additive is selected from plasticizers, surfactants, aliphatic hydrocarbons, drying oils and mixtures thereof. The additive does not phase separate from the ink jet composition during application of the ink to a substrate in thermal ink jet printing.
47 Citations
19 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. 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 ink composition has a decap time of greater than 2 minutes 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. - View Dependent Claims (15, 16)
-
-
17. A method for printing images on a substrate with a thermal ink jet printer comprising:
-
directing a stream of droplets of a thermal ink jet ink composition to a substrate, wherein the ink composition comprises; 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 less from 1% to 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, and wherein if water is present, it is present in amount up to 10% by weight of the ink composition; and allowing the ink droplets to dry, thereby printing an image on the substrate, wherein the decap time of the ink is greater than 2 minutes. - View Dependent Claims (18, 19)
-
Specification