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US 12,552,949 B2Granted
High adhesion continuous ink jet inks
AssigneeVideojet Technologies Inc.
InventorsZheng Xue, Stormi Tindall, Michael Kozee, Linfang Zhu
Life of this patent
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Abstract
The invention relates to a high adhesion ink with good abrasion resistance, useful for inkjet printing. These inks include a first resin comprising a polymer comprising vinyl chloride or a polymer comprising vinyl acetate, the first resin having a weight average molecular weight between about 20 kDa and about 80 kDa, a second resin comprising a tackifier resin with a weight average molecular weight between about 200 Da and about 2.5 kDa, and a third resin with a weight average molecular weight between about 500 Da and about 40 kDa.
Claims18
An inkjet ink composition comprising:
- (a) a first resin comprising a polymer comprising vinyl chloride or a polymer comprising vinyl acetate, the first resin having a weight average molecular weight between about 20 kDa and about 80 kDa;
- (b) a second resin comprising a tackifier resin with a weight average molecular weight between about 200 Da and about 2.5 kDa, which is selected from a rosin ester, a terpene phenolic resin, a terpene or modified terpene resin, an aliphatic resin, a cycloaliphatic hydrocarbon resin, an aromatic hydrocarbon resin, a hydrogenated hydrocarbon resin, a low molecular weight phenolic resin, and a mixture of any of the foregoing;
- (c) a third resin with a weight average molecular weight between about 500 Da and about 40 kDa, which is selected from an acrylic resin, a styrenated acrylic resin, a carboxylic acid modified acrylic resin, a styrene allyl alcohol resin, a vinyl acetate resin, a sulfonamide modified epoxy resin, and a mixture of any of the foregoing;
- (d) a solvent;
- and
- (e) a colorant.
3 more elements
Dependencies are inferred from the claim text.