Provided is a curable ink composition, in particular a curable inkjet ink composition. The ink composition has a dye monomer, a carrier monomer and an initiator. The dye monomer has a chromophore moiety that is covalently bonded to at least one polymerizable functional group and is present at 1.0 wt % or more based on total weight of the ink composition. The carrier monomer has at least one polymerizable functional group and is present in at 50 wt % or more based on total weight of the ink composition. The ink compositions are suitable for radiation curing such as UV curing and have good cure properties or light fastness properties.

Provided is a curable ink composition, in particular a curable inkjet ink composition. The ink composition has a dye monomer, a carrier monomer and an initiator. The dye monomer has a chromophore moiety that is covalently bonded to at least one polymerizable functional group and is present at 1.0 wt % or more based on total weight of the ink composition. The carrier monomer has at least one polymerizable functional group and is present in at 50 wt % or more based on total weight of the ink composition. The ink compositions are suitable for radiation curing such as UV curing and have good cure properties or light fastness properties.

The present invention is related to reactive dyes each of which comprises a dichlorotriazine, chlorotriazine or vinylsulphonyl group and is capable of absorbing HEVL. They are suitable for method for producing colored silicone hydrogel contact lenses each made of a silicone hydrogel material having hydroxyl groups. The present invention is also related to a colored silicone hydrogel contact lens comprising a colored circular region in which a reactive dye is applied and thereby covalently attached.