The present invention aims to provide a sound insulation and sound absorption member having excellent processability, wherein the member has remarkably improved sound absorption properties, rigidity and heat resistance compared to conventional sound insulation and sound absorption members while being environmentally-friendly, wherein the sound insulation and sound absorption member having excellent processability of the present invention comprises: an upper felt layer and a lower felt layer containing a low melting point polyethylene terephthalate fibers and regular polyethylene terephthalate fibers; a sound insulation layer interposed between the upper felt layer and the lower felt layer and containing thermoplastic polyolefin.
본 발명은 친환경적이면서 종래의 흡차음재 보다 흡차음성, 강성 및 내열성이 현저히 향상된 가공성이 우수한 차량용 흡차음재 및 그 제조방법를 제공하기 위한 것이다. 본 발명의 가공성이 우수한 차량용 흡차음재는, 저융점 폴리에틸렌 테레프탈레이트 섬유와 레귤러 폴리에틸렌 테레프탈레이트 섬유를 함유하는 상부펠트층 및 하부펠트층; 상기 상부펠트층과 하부펠트층 사이에 개재되며, 열가소성 폴리오레핀을 함유하는 차음층; 을 포함한다.
Noise absorbent fabric and manufacturing method of the same
가공성이 우수한 차량용 흡차음재 및 그 제조방법
2018-11-20
Patent
Electronic Resource
Korean
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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