Extruded filament having high definition cross-sectional...

G - Physics – 09 – F

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G09F 3/02 (2006.01) D01D 11/00 (2006.01)

Patent

CA 2650886

An extruded filament is provided having a cross-sectional configuration which permits a cut transverse section of the filament to function as a high definition tagging material, the extruded filament having contained therein along the direction of the longitudinal axis (the axis of extrusion) of the filament a multitude of extruded strand portions, which may be the same or different from one another from the standpoint of composition, visual or forensic effect, and which strand portions provide a multitude of pixel-like portions within a cross-sectional portion of the filament, which multitude of pixel-like portions, when taken together, comprise at least one pre-selected degree of identification whereby the tagging material may be differentiated or identified based on at least one degree of identification. A cut fiber or microparticle formed from the filament may be used to authenticate a product when used in association with the product.

l'invention concerne un filament extrudé possédant une configuration de coupe qui permet à une coupe de ce filament de fonctionner comme un matériau d'étiquetage de haute définition, ce filament extrudé contenant à l'intérieur dans le sens de l'axe longitudinal (l'axe d'extrusion) du filament une multitude de parties de brin extrudé, qui peuvent être semblables ou différentes entre elles du point de vue de la composition, de l'effet visuel ou légal, et ces parties de brin fournissent une multitude de parties de type pixel à l'intérieur d'une partie coupe transversale du filament, cette multitude de parties de type pixel, lorsqu'elles sont rassemblées, comprennent au moins un degré pré-sélectionné d'identification, le matériau d'étiquetage pouvant être différencié ou identifié à partir d'au moins un degré d'identification. Une fibre coupée ou une microparticule formée à partir de ce filament peut être utilisée pour authentifier un produit lorsqu'on l'utilise avec ce produit.

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