| 摘要 |
A process of manufacturing core-sheath composite fiber includes the steps of: preparing hollow fiber in a form of filament of which some parts forms communicating pores from an outer surface of the fiber to a hollow portion thereof, or in a form of filament segment with open ends; sealing adjacent porous parts or open ends of the same filament respectively in pressure containers and vacuum containers; adding filling materials into pressure containers, and keeping the porous parts or open ends completely immersed in the filling materials; pressurizing the pressure containers using compressed gas, and evacuating the vacuum containers, then the filling materials being absorbed through the communicating pores or opens into the hollow portion of the fiber. During the process of the present invention to manufacture core-sheath composite fiber, most areas of outer surface of the fiber do not contact the filling materials, thus most areas of the outer surface is clean, which is advantageous for post treating or use. The process of the present invention is applicable for filling various materials at a broad range temperature. <IMAGE>
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