Nonwoven secondary carpet backing

D - Textiles – Paper – 04 – H

Patent

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Details

D04H 5/02 (2006.01)

Patent

CA 2503495

The present invention is directed to a method of forming a nonwoven fabric, which exhibits a pronounced durable three-dimensional image, permitting use of the fabric in secondary carpet backing of carpet backing systems so as to reduce deformation under normal l use (walking) and provide better coverage in carpet system applications. In particular, the present invention contemplates that a fabric is formed from a precursor web (P) comprising a spunbond and/or cast scrim, which when subjected to hydroentanglement on an imaging surface (24), an enhanced product is achieved. By formation in this fashion, hydroentanglement of the precursor web results in a more pronounced three- dimensional image; an image that is durable to abrasion and distortion.

La présente invention concerne un procédé d'élaboration d'un non-tissé présentant une image tridimensionnelle durable prononcée, ce qui permet l'utilisation du tissu dans un endos de tapis secondaire de systèmes d'endos de tapis, de manière à diminuer la déformation au cours d'une utilisation normale (marche) et à fournir un meilleur revêtement dans des applications de tapis. Notamment, cette invention a trait à un tissu élaboré à partir d'un voile précurseur comprenant un filé-lié et/ou un non-tissé à couches superposées biaisées par coulée, qui lorsqu'il est soumis à un hydroenchevêtrement sur une surface à imager, permet d'obtenir un produit amélioré. Cette conception permet à l'hydroenchevêtrement du voile précurseur de déboucher sur une image tridimensionnelle plus prononcée, qui est durable face à l'abrasion et à la distorsion.

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