Patent ID: 7297201

Claim:
An ink jet ink composition comprising a liquid carrier, a first colorant that is soluble in the liquid carrier but insoluble or substantially insoluble in water, and a second colorant composition comprising a pigment, said second colorant composition being dispersible but insoluble or substantially insoluble in the liquid carrier, wherein the liquid carrier includes one or more glycols and one or more glycol ethers selected from the group consisting of diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, tripropylene glycol monoethyl ether, tripropylene glycol monopropyl ether, and tripropylene glycol monobutyl ether.