Process for producing colored shaped articles

Details Process for producing colored shaped articles Process for producing colored shaped articles

D - Textiles, Paper

06

B

8/3

D06B 3/34 (2006.01) B29D 11/00 (2006.01) D06P 1/92 (2006.01) D06P 3/00 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1189256

ABSTRACT OF THE DISCLOSURE A unformly colored shaped article which is resistant to discoloration and fading can be produced by immersing a shaped article, particularly a contact lens, consisting of a polymer of at least one monomer selected from the group consisting of acrylates and methacrylates in a dyeing solution prepared by dissolving a water- soluble dye in a solvent capable of swelling said polymer, to swell and color the shaped article, and then drying the swollen shaped article.

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