Interior sound absorption sheet and sound absorbing sound-proofing panel containing same

摘要

Provided is a sound absorption sheet comprising: a porous substrate; and a micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof. Also provided is a sound absorbing soundproofing panel, the exterior surface of which is covered with the sound absorption sheet comprising: the porous substrate; and the micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof.

主权项

1. A sound absorption sheet comprising:
a porous substrate; and a micro-resonance layer formed with a plurality of patterned sound absorption holes penetrating both surfaces thereof, wherein the porous substrate comprises glass fibers, wherein the glass fibers have a fiber diameter of 5 μm to 20 μm and a fiber length of 1 mm to 50 mm, and wherein the porous substrate has a basis weight of 50˜80 g/m2.