Acoustic fiber sheet and shaped article utilizing the same

Details Acoustic fiber sheet and shaped article utilizing the same Acoustic fiber sheet and shaped article utilizing the same

D - Textiles, Paper

04

H

D04H 1/40 (2006.01)

Patent

CA 2658042

An acoustic fiber sheet that enables production of a lightweight fibrous shaped article excelling in acoustic performance; and a shaped article utilizing the same. The acoustic fiber sheet has its air-flow resistance set to 0.08 to 3.00 kPa-s/m. By superimposing this fiber sheet on a surface of fibrous base material, there can be obtained a laminate that even when the weight per square meter of the base material is less, exhibits good acoustic properties. By forming the laminate into a given shape, there can be obtained shaped articles.

L'invention concerne une feuille insonorisante en fibres permettant la production d'un article profilé fibreux, léger présentant d'excellentes performances acoustiques, ainsi qu'un article profilé comprenant ladite feuille. La feuille insonorisante en fibres présente une résistance à l'air comprise entre 0.08 to 3.00 kPa-s/m. Lors de la superposition de cette feuille en fibres et d'une surface en matériau de base fibreux, un laminé est obtenu et il présente de bonnes propriétés acoustiques, même lorsque le poids au mètre carré du matériau de base est inférieur. L'usinage du laminé permet d'obtenir des articles profilés.

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