Method to prepare pigmented laquers for the coloring of contact lenses, the pigmented or colorless laquers thus obtained and the contact lenses colored with said laquers

摘要

Object of the invention is a method for preparing pigmented laquers for the forming of color effect in contact lenses, said method comprising forming a prepolymerized gelled mass from UV-photopolymerizable monomers, separating from said gelled mass the residual monomers in order to form a storable mass. The pigmented laquers or varnishes are obtained by dispersing the selected comminuted or micronized pigments in a vehicle formed by said gelled mass or fractions thereof, dissolved in the precursor monomers of same.