Patent ID: 8167990

Claim:
Nutritional or ingestible ink composition for ink jet printing by the deflected continuous ink jet printing technique which is liquid at ambient temperature comprising: a) a binder comprising at least 0.5% by weight, with respect to the total weight of the ink, of at least one zein, the zein being present in an amount greater than 50% by weight based on the total weight of the binder; b) a solvent comprising at least 10% by weight, with respect to the total weight of the ink, of one or more nutritional or ingestible solvent(s), said solvent comprising a predominance by weight of ethanol in combination with at least one other solvent, or the solvent is composed of ethyl lactate; c) at least 0.1% by weight, with respect to the total weight of the ink, of one or more nutritional or ingestible dye(s) and/or pigment(s); the said ink composition having a conductivity of greater than 300 μS/cm at 20° C.