Printing ink emulsion having reduced VOC
AssigneeMilliken Research Corporation
InventorsRajnish Batlaw, Patrick D. Moore
Life of this patent
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Abstract
An ink composition for Gravure printing is provided wherein the vehicle is a water-in-oil emulsion of a water immiscible organic phase and an aqueous phase, in the range of 9:1 to 1:1, thereby significantly reducing VOC emissions, with no detrimental effect on print quality.
Claims32
In a gravure ink composition comprising a colorant and vehicle, the improvement comprising employing a vehicle comprising a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3 by weight, respectively.
A gravure ink composition comprising by weight:
- (a) 2-25 parts colorant;
- (b) 5-35 parts resins;
- (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3, respectively;
- and
- (d) up to 15 parts of additives.
In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the ink composition comprising a colorant and a vehicle, wherein the improvement comprises employing a vehicle comprising a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in the ratio of from 9:1 to 1:3 by weight, respectively.
In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the improvement comprises employing an ink composition comprising by weight:
- (a) 2-25 parts colorant;
- (b) 5-35 parts resins;
- (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3 by weight, respectively;
- and
- (d) up to 15 parts of additives.
Dependencies are inferred from the claim text.