| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester filament nonwoven fabric including a polyester having excellent crystallinity while having a low melting point, obtained by being spun by a common production apparatus in good operability, and being formed into fiber, enabling the finishing to be carried out at a low temperature when being subjected to thermobonding, and having a small heat shrinkage and good dimensional stability. SOLUTION: The polyester filament nonwoven fabric is constituted of a web obtained by accumulating filaments including a copolyester composed of a dicarboxylic acid component consisting essentially of terephthalic acid, and a diol component containing≥50 mol% 1,6-hexanediol, containing 0.01-5.0 mass% nucleating agent, and having a melting point (Tm) of 100-150°C, and has thermobonding parts at least at a part thereof. The area shrinkage of the nonwoven fabric in the atmosphere of (Tm-30)°C is≤10%. COPYRIGHT: (C)2009,JPO&INPIT
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