SOUNDPROOFING MATERIAL FOR AUTOMOBILE INTERIOR

摘要

PURPOSE: A soundproofing material for a vehicle interior is provided to increase soundproof performance by manufacturing a soundproof coating layer for noise insulation. CONSTITUTION: A soundproofing material for a vehicle interior comprises first and second lined layers(10,20) and a soundproof coating layer(30). The first and second coating layer is made of polyester fiber 60~80wt.%. The soundproof coating layer is inserted between a first bellows layer and a second bellows layer. The soundproofing coating layer absorbs low frequency noise.