Patent ID: 8927618
Filing Date: 2015-01-06
Classification: B29D,C09B,G02B

Abstract:
1. A method for producing a colored ophthalmic lens comprising the steps of: (1) coating a dye composition for an ophthalmic lens in the form of fine droplets on the surface of an ophthalmic lens to form dots using ink-jet coating equipment, wherein heat is applied to the ophthalmic lens prior to coating the dye composition, the dye composition comprising: (A) a dye having at least one group having a carbon-carbon double bond selected from the group consisting of an α, β-unsaturated carbonyl group, a styryl group, a vinylbenzyl group and an allyl group per molecule; (B) a radical polymerization initiator; and (C) a solvent capable of dissolving at least a part of the component (A) and the component (B), and/or (D) a monomer having at least one radical polymerizable group per molecule; (2) allowing at least a part of the dye composition for an ophthalmic lens coated to form dots to be permeated into the ophthalmic lens; and (3) polymerizing the dye composition for an ophthalmic lens by applying at least one selected from an active energy ray and heat to the dye composition for an ophthalmic lens.