Fluorosurfactant packages for use in inkjet printing and methods of controlling puddling in inkjet pens
AssigneeHewlett-Packard Development Company, L.P.
InventorsZeying Ma, Richard Anderson
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Abstract
An inkjet printing system for use in offset printing comprises a fixer fluid and an ink. The fixer fluid comprises a fixer polymer and a first fluorosurfactant package having a fluorosurfactant and a hydrocarbon surfactant. The ink comprises a charged dye and a second fluorosurfactant package. Methods for improving print quality in offset printing using the inkjet printing system and the fixer fluid are also disclosed.
Claims30
An inkjet printing system for use in offset printing comprising:
- a fixer fluid comprising a cationic fixer polymer and a first fluorosurfactant package, the first fluorosurfactant package comprising a fluorosurfactant and a hydrocarbon surfactant, wherein the fluorosurfactant is a cationic or nonionic fluoropolymer and the hydrocarbon surfactant is cationic or nonionic;
- and
- an ink comprising an anionic dye and a second fluorosurfactant package, the second fluorosurfactant package comprising an anionic fluorosurfactant and at least one anionic or nonionic hydrocarbon surfactant.
A method of improving print quality in offset printing comprising:
- depositing an ink and a fixer fluid on an offset medium
- wherein the fixer fluid comprises a cationic fixer polymer and a first fluorosurfactant package, the first fluorosurfactant package comprising a cationic or nonionic fluorosurfactant and a cationic or nonionic hydrocarbon surfactant;
- wherein the ink comprises an anionic dye and a second fluorosurfactant package, the second fluorosurfactant package having an anionic fluorosurfactant and at least one anionic or nonionic hydrocarbon surfactant.
A fixer fluid for use in offset printing comprising:
- a cationic fixer polymer comprising poly(hexamethylene biguanide) or a copolymer of hexamethylene guanide and hexamethylene biguanide;
- and
- a first fluorosurfactant package comprising a fluorosurfactant and at least one hydrocarbon surfactant, wherein the fluorosurfactant is a cationic or nonionic fluoropolymer and the at least one hydrocarbon surfactant is cationic or nonionic.
Dependencies are inferred from the claim text.