PROBLEM TO BE SOLVED: To provide a soundproof material with light weight and with excellent sound absorption characteristic and excellent sound insulation, and its manufacturing method.SOLUTION: A vehicular inner packaging material, or a vehicular molded product G having a predetermined shape is integrally molded from: a first sheet-like material X1 comprising a first fiber body crossconnected of 40 to 75 wt.% of fibers A1 containing ultrafine fibers having a fineness of 0.1 to 1.0 dtex as a main component, 15 to 60 wt.% of fibers B1 containing heat fusible fibers having a fineness of 1.2 to 5.0 dtex as a main component, and 0 to 20% wt.% of fibers C1 containing short fibers having a fineness of 1.2 to 5.0 dtex as a main component; and a second sheet-like material Y1. A manufacturing method of the vehicular inner packaging material G comprises: providing the sheet-like materials X1, Y1; heating the second sheet-like material Y1 and pressing it in a primary forming mold to form a primary molded body Y4; setting the primary molded body Y4 and the sheet-like material X1 into a secondary forming mold; and performing compression molding in the secondary forming mold to manufacture the vehicular molded product G having a predetermined shape integrally molded with the primary molded product Y4 and the sheet-like material X1.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及びそ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 INNER PACKAGING MATERIAL AND ITS MANUFACTURING METHOD
車両用内装材及びその製造方法
2018-09-13
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / 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 / D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL |
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