| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-resistant filament nonwoven fabric excellent in thermal shrinkage, strength, chemical resistance, acid resistance, lint free property and recyclability, and to provide a cleaning roll using the nonwoven fabric and used for copying machines. SOLUTION: This heat-resistant filament nonwoven fabric has a melting point of≥260°C, a longitudinal strength of≥50 N/5cm, and a dry heat shrinkage rate of≤1.5%, when thermally treated at 200°C for one hour. The heat-resistant filament nonwoven fabric uses a heat-resistant thermoplastic resin being polyphenylene sulfide. COPYRIGHT: (C)2008,JPO&INPIT
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