Patent ID: 6681086
Filing Date: 2004-01-20
Classification: G03G

Abstract:
A sealing member for preventing escape of micro particles, sealing a predetermined gap between a movable unit in contact with said micro particles and a housing of said movable unit, and adhered to a face of said movable unit or housing without impeding movement of said movable unit, based on a pile fabric configured with a pile yarn forming a sliding flock and a base cloth of plain woven tissue supporting said pile yarn, said pile yarn of the flock being formed of a high strength polyethylene fiber having a filament fineness of 0.1-6.0 dTex, a fiber cross section oblateness of at least 1.1, and an average tensile strength of at least 22 cN/dTex, and said flock having a height of 1.5-4.0 mm, a pile density of 13,000-346,000 filament/cm2 at the pile yarn portion, and a pile yarn cross section area of 0.02-0.2 cm2 per 1 cm2 of the base cloth, obtained from an equation (1) of:S=fÃ—dÃ·&rgr;Ã·1,000,000â€ƒâ€ƒ(1) whereS: a pile yarn cross section area (cm2) f: filament fineness of pile yarn (dTex) d: pile density of flock (filament/cm2) &rgr;: specific gravity of pile yarn (g/cm3); and said sealing member including a coating layer at a back side of said base cloth to prevent fall off of said flock.