Ink composition
AssigneeHewlett-Packard Development Company, L.P.
InventorsLinda Sherry, Niamh Kelly, Richard J. McManus, Kevin Rattigan, John Breen
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an ink composition containing a colorant; a hydroxylated co-solvent; a non-hydroxylated co-solvent, a polyurethane binder and water. The weight percent ratio of the hydroxylated co-solvent to the non-hydroxylated co-solvent in the ink composition ranges from 55:45 to 65:35; and the total amount of hydroxylated co-solvent and non-hydroxylated co-solvent in the ink composition is at least 18 wt %. The amount of polyurethane binder in the ink composition is 0.1 to less than 1 wt %.
Claims17
An ink composition comprising
- a colorant;
- a hydroxylated co-solvent;
- a non-hydroxylated co-solvent, wherein the weight percent ratio of the hydroxylated co-solvent to the non-hydroxylated co-solvent in the ink composition ranges from 55:45 to 65:35;
- and wherein the total amount of hydroxylated co-solvent and non-hydroxylated co-solvent in the ink composition is at least 18 wt %;
- a urea-capped polyurethane binder;
- wherein the amount of polyurethane binder in the ink composition is 0.1 to less than 1 wt %;
- and
- water.
An ink composition comprising
- a colorant;
- a hydroxylated co-solvent;
- a non-hydroxylated co-solvent, wherein the weight percent ratio of the hydroxylated co-solvent to the non-hydroxylated co-solvent in the ink composition ranges from 55:45 to 65:35;
- a urea-capped polyurethane binder;
- and
- water.
Dependencies are inferred from the claim text.