Knitted substrate with high and low tenacity yarns for use...

A - Human Necessities – 61 – F

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A61F 5/00 (2006.01) A61F 13/04 (2006.01)

Patent

CA 2493222

A cast tape or medical bandaging product (10) formed from a resin-coated or impregnated fabric material that includes a knitted substrate (16) having a combination of non-fiberglass high and low tenacity yarns such as polypropylene, polyester and elastomer. The polypropylene and polyester yarns have a high number of filaments, typically 48 to 90 filaments. This significantly improves the surface area of the fabric, that helps help to hold the curable resin onto the fabric and avoids pooling. This in turn improves lamination layer-to-layer and gives the substrate high strength.

L'invention concerne une bande moulée ou un produit de bandage médical formé à partir d'un matériau de tissu imprégné ou revêtu de résine comprenant un substrat tricoté (16) constitué d'une combinaison de fils à haute et faible ténacité non fibre de verre tel que du polypropylène, du polyester et de l'élastomère. Les fils en polypropylène et polyester possèdent un nombre élevé de filaments, généralement 48 à 90 filaments. Ceci améliore de façon significative la zone superficielle du tissu, ce qui permet de maintenir la résine durcissable sur le tissu et empêche l'accumulation. Ceci permet également d'améliorer la stratification couche par couche et offre au substrat une résistance élevée.

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