Coffee-based printing ink for food use.


A liq. coloring compn. comprises a coffee soln. or coffee ext. and an ink vehicle. The coloring compn. (composed of edible components) is suitable for use as an ink in a non-impact printing device, including an ink jet type printer. Thus, an ink formulation may include 89.9% coffee conc., 5% propylene glycol, 5% glycerol, and 0.1% Tween 80. A process for applying a design to a food substrate includes use of a non-impact printing device, in which the ink cartridge or external container contains this coloring compn. [on SciFinder(R)]


CAPLUS AN 2012:1632819(Patent)