| abstract |
Disclosed are jet ink compositions comprising water, a water soluble or dispersible polymeric resin, a colorant having infrared absorption in the range of 700 - 1100 nm, an alkylene glycol having 3-6 carbon atoms, and at least one mono- or di-alkyl ether of an alkylene glycol having 2-6 carbon atoms wherein the alkyl group consists of 1-6 carbon atoms, the jet ink compositions having a surface tension of less than 35 dynes/cm. An improved method of jet printing is also disclosed, the improvement comprising using the inventive ink composition. |