| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat-bonding filament nonwoven fabric which is stuck to a membrane material having a separation function such as a filter material, a moisture permeable waterproof membrane, etc., has high adhesiveness and excellent stretchability and a filter which is obtained by using the heat-bonding filament nonwoven fabric and has excellent adhesion durability. SOLUTION: The filament nonwoven fabric comprises a core-sheath conjugate fiber having 7-50μm fiber diameter, composed of a sheath component made of a polyolefin having 5-60 g/10 minutes melt flow, synthesized by a metallocene catalyst and a core component made of a polyester having 180-300°C melting point and has 15-70 g/m<SP>2</SP>weight. The filter is obtained by bonding the filament nonwoven fabric to a porous membrane by hot melting of the sheath component of the filament nonwoven fabric. COPYRIGHT: (C)2004,JPO
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