INK COMPOSITIONS AND METHODS FOR MAKING THE SAME

摘要

An ink composition includes a solvent system present in an amount ranging from about 10 wt% to about 25 wt%. The solvent system includes a betaine solvent and 2-pyrrolidone, glycerol, or combinations thereof. The ink composition further includes at least one surfactant in an amount up to about 10 wt%; at least one polymeric binder in an amount ranging from about 2 wt% to about 6 wt%; water; and a pigment present in an amount ranging from about 0.1 wt% to about 5 wt%.