Verfahren zum Färben von thermoplastischen Harzen und so hergestellte gefärbte Kunststofflinsen

摘要

ÄProblemÜ To provide a method of effectively dyeing a thermoplastic resin plastic lens in arbitrary color tone and density and a colored plastic lens. ÄMeans for SolutionÜ A method of dyeing a resin plastic lens by dipping a thermoplastic resin plastic lens in a dyeing liquid containing a disperse dye and a monocyclic monoterpene, and a colored plastic lens obtained by dyeing by that method.