D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
D06P 5/20 (2006.01) B29C 59/16 (2006.01) B29C 67/00 (2006.01) D06P 1/00 (2006.01) D06P 3/52 (2006.01) D06P 5/22 (2006.01) G02C 7/02 (2006.01) B29C 35/08 (2006.01)
Patent
CA 2369737
The invention concerns a method which consists in irradiating at least one face of the article with UV radiation, causing the article to be photodegraded over a thickness of at least 1 µm, and in contacting the irradiated face of the article with a colouring agent so as to diffuse the colouring agent in the entire thickness of the photodegraded surface layer of the article. The invention is useful for optical and ophthalmologic articles.
Le procédé consiste à irradier au moins une face de l'article avec un rayonnement UV, provoquant une photodégradation de l'article sur une épaisseur d'au moins 1 µm, et à mettre en contact la face irradiée de l'article avec un agent de coloration pour faire diffuser l'agent de coloration dans la totalité de l'épaisseur de la couche superficielle photodégradée de l'article. Application: aux articles d'optique et ophtalmiques.
Essilor International - Compagnie Generale D'optique
Gowling Lafleur Henderson Llp
LandOfFree
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