| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a laminated nonwoven fabric excellent in absorbing property.SOLUTION: A laminated nonwoven fabric has a surface layer part and a base part. The surface layer part has at least a nonwoven fabric layer ((1) layer) formed of a nanofiber which is formed from a thermoplastic resin having a number-average single fiber diameter of 1 to 500 nm, and a nonwoven fabric layer ((2) layer) formed of a fiber having a larger number-average single fiber diameter than that of the nanofiber, and is a nonwoven fabric layer A having a basis weight of 30-100 g/m. The base part is a nonwoven fabric B having a basis weight of 200-800 g/mand contains 10 mass% or more of a fiber having a number-average single fiber diameter of 15μm or less. A sound absorbing rate at a frequency of 2,000 Hz is 85% or more.</p> |
