SOUNDPROOF PANEL AND SOUNDPROOF STRUCTURE

A soundproof panel comprising a non-woven fibrous structure comprising a wet heat-adhesive fiber and the fiber is fixed by fusion of the wet heat-adhesive fiber is prepared. The sound insulation panel may be a sound insulation panel 1 in which the nonwoven fiber structure 2 and the honeycomb structure 3 are laminated. The soundproof panel may be a soundproof panel in which a first face member and a second face member are laminated on both surfaces of a plate-shaped nonwoven fiber structure. The soundproof panel may be a soundproof panel in which a first face member and a second face member are laminated via a rectangular columnar recessed member including a nonwoven fiber structure. The soundproof panel of the present invention is lightweight and combines toughness with excellent sound absorption and sound insulation. A soundproof panel， that is configured with a nonwoven cloth structure， which contains wet heat bondable fibers， and in which these wet heat bondable fibers are fused to affix the fibers， and a board， is prepared. The soundproof panel may be a soundproof panel (1) in which a nonwoven cloth structure (2) and a honeycomb structure (3) are laminated. In addition， the soundproof panel may be a soundproof panel in which a first surface material and a second surface material are laminated on either side of a sheet nonwoven fiber structure. Furthermore， the soundproof panel may be a soundproof panel in which a first surface material and a second surface material are laminated with a quadrangular prismatic fill material made from the nonwoven fiber structure interposed therebetween. The soundproof panel is both lightweight and tough， and has excellent sound absorbing and sound insulating properties. A soundproof panel， that is configured with a nonwoven cloth structure， which contains wet heat bondable fibers， and in which these wet heat bondable fibers are fused to affix the fibers， and a board， is prepared. The soundproof panel may be a soundproof panel (1) in which a nonwoven cloth structure (2) and a honeycomb structure (3) are laminated. In addition， the soundproof panel may be a soundproof panel in which a first surface material and a second surface material are laminated on either side of a sheet nonwoven fiber structure. Furthermore， the soundproof panel may be a soundproof panel in which a first surface material and a second surface material are laminated with a quadrangular prismatic fill material made from the nonwoven fiber structure interposed therebetween. The soundproof panel is both lightweight and tough， and has excellent sound absorbing and sound insulating properties.