MULTILAYER DASH ISOLATION PAD HAVING SUPERIOR FORMABILITY AND SOUND ABSORPTION PERFORMANCE

The present invention provides a multilayer dash isolation pad having superior formability and sound absorption performance. The multilayer dash isolation pad provides excellent superior formability and sound absorption. The multilayer dash isolation pad includes a decoupler and a sound absorption a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIM, KEUN YOUNG, JEONG, KIE YOUN, LEE, JUNG WOOK, JUNG, PAN KI, SEO, DAE WON, SEO, WON JIN, PARK, BONG HYUN, JOO, KIL BU, RYU, SEUNG SOO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS PERFORMING OPERATIONS TEXTILES TRANSPORTING TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	The present invention provides a multilayer dash isolation pad having superior formability and sound absorption performance. The multilayer dash isolation pad provides excellent superior formability and sound absorption. The multilayer dash isolation pad includes a decoupler and a sound absorption and insulation layer. The decoupler is a soft felt manufactured from urethane foam or octalobal cross-section fiber, and the sound absorption and insulation layer includes a compressed felt manufactured from octalobal cross-section fibers. In particular, the shape factor (+-) of the octalobal cross-section fiber is 2.0 to 2.7. Particularly, the multilayer dash isolation pad according to the present invention does not decrease thickness or be contracted upon press molding after preheating felt, such that superior formability in components can be obtained and a sound absorption coefficient may be enhanced without increase in the weights and thicknesses of the decoupler and the sound absorption and insulation layer. 本发