WATER CLEANABLE PHASE CHANGE INK FOR OPHTHALMIC LENS MARKING

摘要

PROBLEM TO BE SOLVED: To provide a water cleanable phase change ink for ophthalmic lens marking.SOLUTION: A water dispersible phase change ink composition for printing on ophthalmic lenses includes a hydrophilic wax having at least one ethoxyl moiety; a low viscosity wax having at least one hydroxyl group and being miscible with the hydrophilic wax; an optional stabilizer; and a colorant. An ink jet printer stick or pellet comprises the water dispersible phase change ink composition.SELECTED DRAWING: None