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US 2016/0108262 A1Published application
Low-foaming ink compositions including fluorosurfactants for indirect printing
AssigneeXerox Corporation
InventorsValerie M. Farrugia, Guiqin Song, Jenny Eliyahu
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Abstract
The present disclosure provides an ink comprising a fluorosurfactant-stabilized polymer latex, which is suitable for use in an indirect printing method.
Claims20
An ink for use in an indirect printing process comprising:
- water;
- a co-solvent;
- and
- a fluorosurfactant-stabilized polymer latex comprising a polystyrene copolymer latex having a glass transition point of from 50° C. to about 65° C., and a fluorosurfactant, wherein the fluorosurfactant does not covalently bind to the polymer latex and the fluorosurfactant is the only surfactant present in the ink, wherein the fluorosurfactant is an anionic phosphate ester, and further wherein the fluorosurfactant comprises a partially or fully fluorinated alkyl group having from 1 to 12 carbon atoms and a perfluoro telomer.
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A low foaming ink for use in an indirect printing process comprising:
- water;
- a co-solvent;
- and
- a fluorosurfactant-stabilized polymer latex comprising a polystyrene copolymer latex having a glass transition point of from 50° C. to about 65° C. and an anionic phosphate ester fluorosurfactant;
- wherein the anionic phosphate ester fluorosurfactant does not covalently bind to the polymer latex and the fluorosurfactant is the only surfactant present in the ink, wherein the fluorosurfactant is an anionic phosphate ester, and further wherein the fluorosurfactant comprises a partially or fully fluorinated alkyl group having from 1 to 12 carbon atoms and a perfluoro telomer;
- wherein the ink has a surface tension of from about 18 to about 35 mN/m at the jetting temperature.
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Dependencies are inferred from the claim text.