| 摘要 |
This patent application discloses a waterborne ink for printing marks on ophthalmic lenses, and a process for applying the ink to various coated or uncoated surfaces, especially the surfaces of polycarbonate lenses. The ink produces marks that are free of any ghost images after the removal of the ink. The ink includes preferably an acrylic polymer, a coloring agent, and preferably further includes at least one surfactant as a wetting agent. |
