| abstract |
The invention relates to a fluorosilicon hydrogel colored contact lens and a preparation process thereof, comprising the following steps: transferring a primer layer to the surface of a positive mold as a first layer by a pad printing method, and then pad printing ink on the cured printing layer The bottom layer is cured, and then the fluorosilicon hydrogel polymer solution is added into the mold to form a colored contact lens by molding and curing. Among them, the primer layer mainly includes fluorosilicone prepolymer 1, and the ink mainly includes fluorosiloxane prepolymer 2 and pigment, and also includes various additives. The fluorosilicon hydrogel colored contact lens of the invention solves the problems of low oxygen permeability coefficient of the bottom layer of the lens, easy color dispersion of the ink, and incompatibility between the ink resin and the lens. |