Red-light blocking ink binder for contact lenses

A method, comprising:

• (a) applying, to at least a portion of a molding surface of a contact lens mold, a red-light blocking ink binder comprising (i) a solvent, and (ii) a silicone copolymer comprising a reaction product of (1) a copolymerization product of a polymerization composition comprising (i1) an alkylacrylamide monomer, (i2) a hydroxyethyl acrylate monomer, (i3) a non-bulky organosilicon-containing monomer having an ethylenically unsaturated reactive end group, (i4) a bulky siloxane monomer having an ethylenically unsaturated reactive end group, and (i5) a red-light blocking compound blocking from about 95% to about 98% of red-light transmission through a colored contact lens at a wavelength of from about 550 nanometers (nm) to about 800 nm, wherein the red-light blocking compound has one or more ethylenically unsaturated reactive end groups, with (2) a monomer having a reactive functionality complementary to the hydroxyl moiety of the hydroxyethyl acrylate monomer and a polymerizable ethylenically unsaturated reactive end group;
• and
• (b) curing the red-light blocking ink binder to form a colored pattern which comprises a red-light blocking polymer network, wherein the colored pattern contains a first surface in contact with the molding surface and an exposed second surface.