| 摘要 |
PURPOSE: A car trim with improved absorbing performance is provided to enhance a sound absorption effect while reducing the total weight of hollow fiber sound-absorbing materials by the formation of a hollow and to improve fuel efficiency of a car. CONSTITUTION: A car trim with improved absorbing performance comprises an upper felt layer, a lower felt layer and filler. The upper felt layer is made by laminating sound absorption felt, which is the mixture of low melting point polyester fiber and polyester hollow fiber at a predetermined ratio, with the density of 300g/m^2-600g/m^2in many folds. The lower felt layer is made by laminating sound absorption felt, which is the mixture of low melting point polyester fiber and polyester hollow fiber at a predetermined ratio, with the density of 300g/m^2-600g/m^2 in many folds. The filler is made with the mixture of low melting point polyester fiber, black fiber and a form chip at a predetermined ratio. The filler is formed between the upper felt layer and the lower felt layer.
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