Process for tinting contact lens

Details Process for tinting contact lens Process for tinting contact lens

D - Textiles, Paper

06

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D06P 3/00 (2006.01) B29D 11/00 (2006.01) D06P 1/52 (2006.01) D06P 1/613 (2006.01) D06P 3/34 (2006.01) G02C 7/02 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2103382

A contact lens colorant formulation containing a non-ionic polyalkylene oxide surfactant is applied to a dry hydrophilic contact lens by means of a silicon rubber printing pad to provide a cosmetically acceptable, solid, unblemished covering. This process allows for a solid covering to be placed onto the lens in a single printing step using standard transfer printing devices.

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