This study is a kind of dirt resistant layer which can be used to avoid the interior of automobiles. More specifically, it is about the lightweight interior layer with excellent cosmetic and sound insulation properties.According to this study, on the inner material layer with multi-layer laminated structure, a mixed non-woven fabric (14) composed of 40-80 weight of high melting point chemical fiber and 20-60 weight of low melting point chemical fiber is attached to both sides of polyurethane foam (10), It is laminated.So,Enhance the mechanical properties of the internals including polyurethane foam,In order to maintain the formed shape, a layer body of visceral material capable of better manufacturing and shaping is provided with a thin thickness,Erythematosomes that provide light visceral agents,In addition, when the mixed non-woven fabric (14) is used for shaping the red layer body, the mixed non-woven fabric (14) is heated,Compression molding can be simplified,And then it's automated,After mechanization, it can be produced continuously,The unit price has the effect of providing a cheap internal material stack.
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