ACOUSTIC FIBER SHEET AND SHAPED ARTICLE UTILIZING THE SAME

摘要

An acoustic fiber sheet that enables production of a lightweight fibrous shaped article excelling in acoustic performance; and a shaped article utili zing 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 fibro us 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 prope rties. By forming the laminate into a given shape, there can be obtained sha ped articles.