MULTI-DIVISIONAL HOLLOW NOZZLE, MANUFACTURING METHOD OF HOLLOW FIBER USING THE SAME AND USE THEREOF

摘要

The present invention relates to a multi-divisional hollow nozzle, a method for preparing a multi-divisional hollow fiber using the same, a multi-divisional hollow fiber obtained from the method, and a use of the multi-divisional hollow fiber. According to the present invention, a multi-divisional hollow nozzle having at least two hollows per hole is designed by providing at least two slits for forming a multi-divisional hollow fiber, thereby dividing a hollow inside a hollow fiber made of a thermoplastic polymeric resin into two or more, and thus providing a multi-divisional hollow fiber of which a hollow section is not easily distorted or deformed by external force in spite of a high hollowness of 3-50%, thereby maintaining the lightness and voluminosity and realizing high lightness, high insulation (thermal insulation), high elasticity, and high durability, when compared with existing hollow fibers. Further, the multi-divisional hollow fiber is useful as fiber materials for industrial construction, such as an insulating material; fiber materials for living, such as bedding for warmth and cushion, sofa, and interior materials; fiber materials for light and warm clothing, such as leisure and sports clothing; and fiber materials for industry for the purposes of lightness, warmth, insulation, and cushion, of interior and exterior materials for transportation, such as an automobile, an aircraft, and a train.