| abstract |
An object of the present invention is to provide a laminated nonwoven fabric having excellent sound absorption performance in a low frequency region. And this invention is a laminated nonwoven fabric which consists of a skin layer and a base material layer, Comprising: The said skin layer has the nonwoven fabric A, The density of the said nonwoven fabric A is 100-500 kg / m < 3 >, and thickness is 0.5- It consists of a nonwoven fabric of 2.5 mm and air permeability of 4 to 40 cm 3 / cm 2 / s, the base material layer has a nonwoven fabric B, the nonwoven fabric B has a basis weight of 200 to 500 g / m 2 , and a thickness of 5 to 40 mm. It is a laminated nonwoven fabric made of nonwoven fabric. |