Uses of organo-phosphonic acids in ink-jet inks
AssigneeHewlett-Packard Development Company, L.P.
InventorsShirley Lee, John Dangelewicz
Life of this patent
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Abstract
Ink-jet ink compositions are described comprising at least one organo-phosphonic acid. The ink-jet ink compositions reduce adhesive swell, scale formation and corrosion, and as such lead to improved interactions with the structural materials of ink-jet printer pens.
Claims29
An ink-jet ink composition, comprising at least one colorant and a vehicle, said vehicle including an organo-phosphonic acid of general formula
- wherein R1 and R2 are phosphonic acid groups, and R3 and R4 can each, independently of each other, be hydrogen, a hydroxyl group, a phosphonic acid group, an alkyl group, an aryl group, or a substituted alkyl or aryl group having substituents selected from the group consisting of alkyl groups, aryl groups, hydroxyl groups, phosphonic acid groups, ether groups, ester groups, and mixtures thereof.
An ink-jet ink composition, comprising at least one colorant and a vehicle, said vehicle including an organo-phosphonic acid of general formula
- wherein R1 is a methylene phosphonic acid group, and R2 and R3 can each, independently of each other, be hydrogen, a hydroxyl group, an alkyl group, an aryl group, or a substituted alkyl or aryl group having substituents selected from the group consisting of alkyl groups, aryl groups, hydroxyl groups, phosphonic acid groups, ether groups, ester groups, and mixtures thereof.
An ink-jet ink composition, comprising at least one colorant and a vehicle, said vehicle including an organo-phosphonic acid of general formula
- wherein n is an integer between 1 and 6, R1 is a methylene phosphonic acid group, and R2, R3 and R4 can each, independently of each other, be hydrogen, a hydroxyl group, an alkyl group, an aryl group, or a substituted alkyl or aryl group having substituents selected from the group consisting of alkyl groups, aryl groups, hydroxyl groups, phosphonic acid groups, ether groups, ester groups, and mixtures thereof.
An ink-jet ink composition, comprising at least one colorant and a vehicle, said vehicle including an organo-phosphonic acid of general formula
- wherein n is an integer between 1 and 6, R1 is a methylene phosphonic acid group, and R2, R3, R4 and R5 can each, independently of each other, be hydrogen, a hydroxyl group, an alkyl group, an aryl group, or a substituted alkyl or aryl group having substituents selected from the group consisting of alkyl groups, aryl groups, hydroxyl groups, phosphonic acid groups, ether groups, ester groups, and mixtures thereof.
Dependencies are inferred from the claim text.