| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved phase change ink suitable for printing on ophthalmic lenses.SOLUTION: A phase change ink composition for printing on ophthalmic lenses includes: a straight chain hydrocarbon wax and a branched hydrocarbon wax; an amide present in an amount of greater than about 25 wt.% based on the total weight of the ink composition; a rosin ester; and a colorant. A phase change ink composition for printing on ophthalmic lenses includes: a straight chain hydrocarbon wax and a branched hydrocarbon wax; an amide which comprises a combination of at least two members of the group consisting of monoamide, triamide and tetra-amide; a rosin ester; and a colorant. An ink jet printer stick or pellet comprises the phase change ink composition.SELECTED DRAWING: None |
