Acoustic underlayment for pre-finished laminate floor systems

Details Acoustic underlayment for pre-finished laminate floor systems Acoustic underlayment for pre-finished laminate floor systems

D - Textiles, Paper

04

H

D04H 1/46 (2006.01) D04H 3/10 (2006.01) D04H 5/02 (2006.01)

Patent

CA 2481403

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 floor underlayment of laminate floor systems so as to reduce acoustic feedback under normal use (walking) due to sounds absorption and leveling of the floating laminate floor system applications. In particular, the present invention contemplates that a fabric is formed from a precursor web (P) comprising at least one support layer or scrim, hereby when subjected to hydroentanglement on a moveable imaging surface of a three-dimensional image transfer device (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 de formation d'un textile non tissé qui présente une image tridimensionnelle durable prononcée, autorisant son emploi dans les sous-couches de systèmes de planchers lamellés afin de réduire la réaction acoustique dans des conditions normales d'utilisation (marche) étant donné qu'elle absorbe les sons et permet le nivellement des applications de systèmes de planchers lamellés flottants. L'invention se rapporte, en particulier, à un textile formé à partir d'une nappe précurseur (P) comprenant au moins une couche de support ou canevas qui permet d'obtenir un produit amélioré lorsque ladite couche de support est enchevêtrée par liage par jets d'eau sur une surface d'imagerie mobile d'un dispositif de transfert d'image tridimensionnelle (24). En enchevêtrant la nappe précurseur par liage par jets d'eau de cette manière, on obtient une image tridimensionnelle plus prononcée, une image durable qui résiste à l'abrasion et à la distorsion.

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