Process for tinting contact lens

Details Process for tinting contact lens Process for tinting contact lens

1992-11-20

1994-10-04

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

Contact lens

351162, D06P 500

Patent

active

053522451

ABSTRACT:
A contact lens colorant formulation containing a 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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Abstract Japan 01,188,824, Menion, KK.
Abstract Japan 3264-719A, Tokyo Contact Lens.
Database WPI, Week 9245, Derwent Publications Ltd. London, GB; AN 92-369430 & JPA-04270312 (Seiko Epson) Sep. 25, 1992 Abstract.

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