Contact lenses with identifying mark

摘要

The present invention is related to a method for making contact lenses with identifying mark, in particular to silicone hydrogel contact lenses. The present invention is also related to a method of high intensity UV curing the identifying mark print on the mold and high intensity UV treating mold for making silicone hydrogel contact lenses with identifying mark.

主权项

1. A method of making silicone-hydrogel contact lenses, comprising the step of:
(a) providing a mold assembly comprising a female mold half having a molding surface and a male mold half having a molding surface; (b) applying at least one identifying mark coat to at least a portion of at least one of the female molding surface and the male molding surface with an ink, wherein the ink comprises a silicone-containing polymer binder; (c) irradiating the identifying mark coat on the molding surface with a first high intensity UV light to at least partially cure the identifying mark coat; (d) irradiating the molding surfaces of the female mold and the male mold with a second high intensity UV light prior to step e); (e) filling a lens-forming fluid material comprising at least one silicone-containing vinylic monomer or macromer and at least one hydrophilic vinylic monomer into the irradiated mold assembly from step d); (f) exposing the mold assembly and the lens-forming fluid material to an energy source, wherein the energy source polymerizes the lens-forming fluid material; wherein emission spectrum of the first high intensity UV light has a higher intensity in wavelength range 320-390 nm by at least 200 mW/cm2 and a lower intensity in wavelength range 250-260 nm by at least 10 mW/cm2 than the second high intensity UV light.