Hot melt jet ink composition
AssigneeMarkem Corporation
InventorRichard J. Larson, Jr.
Life of this patent
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Abstract
A hot melt jet ink composition comprising a glycerol ester of a hydrogenated rosin and microcrystalline wax exhibits good adhesion and resistance to offset at low temperatures.
Claims24
A hot melt jet ink composition for application to a substrate comprising a glycerol ester of a hydrogenated rosin, microcrystalline wax and a coloring agent, the ink composition exhibiting improved performance at low temperatures.
A hot melt jet ink composition comprising 15% to 75% by weight of a glycerol ester of a hydrogenated rosin, 15% to 70% by weight of a microcrystalline wax and 10% to 60% by weight of a polyethylene wax.
A process for making a hot melt jet ink composition comprising the steps of:
- melting a microcrystalline wax, and
- adding a glycerol ester of a hydrogenated rosin to the molten microcrystalline wax,
- wherein the glycerol ester of a hydrogenated rosin and microcrystalline wax are present in an amount such that the hot melt jet ink composition exhibits improved performance at low temperatures.
Dependencies are inferred from the claim text.