| 摘要 |
PURPOSE: A laminated sound-absorbing material is provided to improve the surface touch and the texture of a porous sound-absorbing material, thereby improving the defect and the color deformity of the porous sound-absorbing material. CONSTITUTION: A manufacturing method of a laminated sound-absorbing material comprises: a step of forming 3D open structure and forming pores of which diameter is 1.5-15 mm; a step of selecting porous sound-absorbing material according to wanted the shape and the pattern of surface; a step of painting and drying the exposed surface of the material; a step of selecting functions, sound absorbing rate, design, color, etc; a step of adding 2.5-15wt% diluent to 100wt% absorbing putty; a step of spreading the laminated material on the surface of the porous sound-absorbing material by putty or spray method; and a step of compressing to the direction from surface to inner side for forming the thickness of 0.5-5 mm.
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