Ink jet ink composition and method of printing
AssigneeJetrion, L.L.C.
InventorDeena L Salenbien
Life of this patent
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Abstract
A HAPs-free ink jet ink includes a pigment; a binder comprising vinyl chloride-vinyl acetate copolymer; and a HAPs-free solvent component comprising 1-methoxy-2-propanol acetate, a dispersing solvent selected from cyclohexanone, n-propyl acetate, n-butyl acetate, diisobutyl ketone, isobutyl acetate, amyl acetate, and combinations of these, and a diluent solvent selected from dipropylene glycol methyl ether, dipropylene glycol methyl ether acetate, tripropylene glycol methyl ether, ethylene glycol diacetate, propylene glycol n-butyl ether, propylene glycol n-propyl ether, and combinations of these. The ink has excellent stability and printing properties. Printing with the ink avoids release of HAPs while allowing long print runs with low maintenance.
Claims16
A Hazardous Air Pollutant (HAPs)-free ink jet ink composition, comprising
- a pigment,
- a binder comprising poly(vinyl chloride-co-vinyl acetate) and an acrylic copolymer having a glass transition temperature of at least about 50° C., comprising from about 60 to about 90 weight percent of the poly(vinyl chloride-co-vinyl acetate), based on the combined weights of the poly(vinyl chloride-co-vinyl acetate) and the acrylic copolymer, and
- a HAPs-free solvent component comprising
- 1-methoxy-2-propanol acetate;
- a dispersing solvent selected from the group consisting of cyclohexanone, n-propyl acetate, n-butyl acetate, diisobutyl ketone, isobutyl acetate, amyl acetate, and combinations of these;
- and
- a diluent solvent selected from the group consisting of dipropylene glycol methyl ether, dipropylene glycol methyl ether acetate, tripropylene glycol methyl ether, ethylene glycol diacetate, propylene glycol n-butyl ether, propylene glycol n-propyl ether, and combinations of these.
Dependencies are inferred from the claim text.