Patent ID: 7396864

Claim:
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.