| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor material for an automobile for decorating an indoor side of the automobile and capable of freely adjusting a ventilation degree (and flow resistance value) and optionally controlling a degree of a sound shut-off property. SOLUTION: The floor material for the automobile has a design layer 11 as a skin. Thermoplastic resin powder 12, an extremely-thin fiber non-woven fabric 13 and a fiber felt layer 14 are arranged from the design layer toward a lower layer. A spraying amount of the thermoplastic resin powder is optimized, and the three members of the design layer 11, the extremely thin fiber non-woven fabric 13 and the fiber felt layer 14 are simultaneously stuck by heating and melting it. There is no problem of the difficulty of the use of an adhesive and the use of a hole opening resin sheet, the adjustment of a flow resistance vale and the control of the degree of the sound shut-off property can be performed, and the balance of the sound absorption property and the sound shut-off property are obtained in a full-frequency area. COPYRIGHT: (C)2011,JPO&INPIT
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