Sound-absorbing materials of micro-fiber having good compression-elasticity rate and sound-absorption and Manufacturing method thereof

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a micro-acoustic absorbent material and a method of manufacturing the same, more specifically, to a method of manufacturing a micro-acoustic absorbent material by manufacturing polyethylene terephthalate (PET) staple fibers into meltblown fibers and / or meltblown conjugate fibers having bulky properties The present invention relates to a micro-fiber sound absorbing material having a coating layer formed on a meltblown composite nonwoven fabric and then forming pores to improve sound absorption properties, adhesive strength and compressive elasticity, and a method for producing the same.