Lithographic printing inks
AssigneeFlint Ink Corporation
InventorsMark D. Latunski, Dennis R. Gelarden, Graham C. Battersby, Kevin P. Kingman, Rick A. Balyo, Michael V. Oberski
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Abstract
A single fluid lithographic printing ink composition includes a hydrophobic phase and a hydrophilic fluid phase. The hydrophilic fluid phase contains water or a liquid polyol or both. The hydrophobic phase contains a hydrogen bonding vinyl polymer that can hydrogen bond with the hydrophilic fluid phase. The vinyl polymers are preferably branched, but remain soluble in the hydrophobic phase. The invention provides stable inks that can be used as single fluid inks with excellent fountain stability and resistance to toning.
Claims111
A lithographic ink composition, comprising
- a continuous phase comprising a hydrogen bonding vinyl polymer and
- an emulsified phase comprising a member selected from the group consisting of water, liquid polyols, and combinations thereof.
A lithographic ink composition, comprising
- a hydrophobic, continuous phase comprising a solution of a branched, hydrogen bonding vinyl polymer and
- an emulsified phase comprising a member selected from the group consisting of water, liquid polyols, and combinations thereof.
A lithographic ink composition, comprising
- a hydrophobic, continuous phase comprising a solution of a branched, hydrogen bonding vinyl polymer and
- an emulsified phase having, as Hansen's solubility parameter values, a dispersion parameter value of at least about 6, a polarity parameter value of at least about 4, and a hydrogen bonding parameter value of at least about 10.
A lithographic ink composition, comprising
- a continuous phase comprising a hydrogen bondings vinyl polymer comprising primary amide groups, amide groups having N-alkyl substituents of three or fewer carbon atoms, or combinations thereof, wherein the vinyl polymer has a polydispersity of at least about 15;
- and
- an emulsified phase comprising a member selected from the group consisting of water, liquid polyols, and combinations thereof.
A method of making a lithographic printing ink, comprising a step of combining a first composition comprising an amide-functional, hydrogen bonding vinyl polymer and a second composition comprising a member selected from the group consisting of water, liquid polyols, and combinations thereof, whereby a printing ink is formed having as a continuous phase the first composition and as a discontinuous phase the second composition.
Dependencies are inferred from the claim text.