Safety structure comprising nematic liquid crystals

Details Safety structure comprising nematic liquid crystals Safety structure comprising nematic liquid crystals

D - Textiles, Paper

21

H

D21H 21/40 (2006.01)

Patent

CA 2709826

The invention relates to a safety structure (10) that comprises: a first region (14) that is at least partially reflecting and has a reduced opacity; a second region (15) that is at least partially reflecting and has a higher opacity than the first one; a layer (18) of a coating having birefringence properties and covering at least partially the first and second regions.

La présente invention concerne une structure de sécurité (10) comportant; une première région (14) au moins partiellement réfléchissante d'opacité réduite, une deuxième région (15) au moins partiellement réfléchissante de plus forte opacité que la première, une couche (18) d'un revêtement présentant des propriétés de biréfringence, recouvrant au moins partiellement les première et deuxième régions.

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