The contact lens coloring ink paste and manufacturing method of the color contact lens which it uses

A contact lens coloring ink paste and a color contact lens manufacturing method using the same are provided to prevent decoloration and discoloration of a color contact lens and to improve productivity by shortening the binding polymer producing time. A color contact lens manufacturing method using contact lens coloring ink paste comprises the steps of: making binding polymer by mixing monomer, an initiator, a modifier, a solvent, and a viscosity maintaining agent, stirring the materials in a constant-temperature oven of 60~65°C, and adding hydroquinone if the mixture is polymerized at proper viscosity; producing the ink paste by adding pigments of the desirable color to the binding polymer and then dispersing the mixture at high speed in a crusher; and applying the ink paste on a color contact lens by mixing the ink paste, binding polymer, and diisocyanate compounds and printing the mixture on the surface of the contact lens that includes or does not include a hydrophilic functional group, by a pad printer.