MULTILAYER ARTICLES HAVING ACOUSTIC ABSORPTION PROPERTY, AND MANUFACTURE AND USAGE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide articles having an acoustic absorption property.SOLUTION: A multilayer article 10 excellent in an acoustic absorption property comprises a support layer 12, and a submicron fiber layer 11 on the support layer 12. The submicron fiber layer 11 contains a polymer fiber having a median fiber diameter less than 1 μm and an average fiber diameter within the range from 0.5 μm to 0.7 μm.