Patent ID: 7030173
Filing Date: 2006-04-18
Classification: C09D

Abstract:
1. A dispersion ink composition for use in impulse ink jet printers, comprising: (a) from about 10 to about 50 percent by weight of a pigment dispersion, wherein said pigment dispersion comprises from about 25 to about 45 percent by weight of a pigment; from about 15 to about 45 percent by weight of a polymeric dispersant; and from about 25 to about 45 percent by weight of a dispersion medium, wherein the ratio of pigment to polymeric dispersant is from about 1:1 to about 1:0.7; (b) from about 5 to about 20 percent by weight of a diol ether; and (c) from about 30 to about 80 percent by weight of a plasticizer, said ink composition being substantially free of water.