PROBLEM TO BE SOLVED: To provide a method for manufacturing a soundproof material which has a light weight, and is excellent in sound absorption property and sound insulation performance.SOLUTION: A vehicular molded product G having a prescribed shape in which a first sheet-like blank X1 and a second sheet blank Y1 comprising a first fiber body, which is formed by cross-connection of 40 to 75 wt.% of a fiber A1 which contains an ultra fine fiber having a fineness of 0.1 to 1.0dtex as a main component; 15 to 60 wt.% of fiber B1 which contains a heat-sealable fiber having a fineness of 1.2 to 5.0dtex as a main component; and 0 to 20 wt.% of fiber C1 which contains a short fiber having a fineness of 1.2 to 5.0dtex as a main component; are integrally molded. A method for manufacturing the vehicular molded product G having a prescribed shape in which the sheet-like blanks X1, Y1 are prepared, the second sheet-like blank Y1 is heated and pressurized by a primary forming metal mold thereby forming a primary molded body Y4, the primary molded body Y4 and the sheet-like blank 1 are set in a secondary forming metal mold, and compression molding is performed by the secondary forming metal mold, whereby the primary molded body Y4 and the sheet-like blank X1 are integrally molded.SELECTED DRAWING: Figure 2
【課題】軽量且つ吸音特性及び遮音性能に優れた防音材の製造方法を提供する。【解決手段】繊度0.1〜1.0dtexの極細繊維を主成分とする繊維A1:40〜75重量%と、繊度1.2〜5.0dtexの熱融着性繊維を主成分とする繊維B1:15〜60重量%と、繊度1.2〜5.0dtexの短繊維を主成分とする繊維C1:0〜20重量%とを交絡させてできた第1繊維体からなる第1シート状素材X1及び第2シート素材Y1が、一体成形された所定形状の車両用成形品G、及びシート状素材X1,Y1を用意し、第2シート状素材Y1を一次成形金型で加熱・加圧して一次成形体Y4を成形し、一次成形体Y4とシート状素材X1を二次成形金型にセットし、二次成形金型で圧縮成形して、一次成形体Y4と上記シート状素材X1とが一体成形された所定形状の車両用成形品Gを製造する。【選択図】図2
VEHICULAR SOUNDPROOF MATERIAL AND METHOD FOR MANUFACTURING SAME
車両用防音材及びその製造方法
2017-09-28
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 / D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |
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