| 摘要 |
<p>A vertically lapped material for acoustic applications includes a first layer of material constructed from at least one layer of non-woven textile fibers. The at least one layer of non-woven textile fibers is folded into a plurality of folds to form a pleated structure. A depth of the pleats of the pleated structure determines a thickness of the first layer of material. Furthermore, at least one second layer of material is connected to the at least one first layer of material. A method of assembling a carpet to form a carpet assembly includes the steps of providing the above at least one first layer of material and a heated carpet; inserting the at least one layer in a cold mold adjacent to the heated carpet; and molding the at least one layer with the heated carpet in the cold mold to form the carpet assembly. It is unnecessary for the at least one layer to be preheated or premolded before insertion into the cold mold.</p> |
