Manufacture of conjugated sheath-core type composite fibers

Abstract

Abstract 1. A conjugated sheath-core type composite fiber, wherein the core is arranged concentrically with the sheath and composed of two different spinning materials conjugated to each other. 2. A process for the manufacture of conjugated sheath-core type of composite fibers, comprising for each fiber the following steps of : conjoining two different spinning materials so as to form a conjugated core; supplying a different spinning material around the thus conjoined core mass in a concentric manner so as to form a sheath; and extruding the thus conjugated core-andsheath mass through a discharge opening. 3. A spinneret assembly for the manufacture of conjugated sheath-core type composite filaments, having a number of spinneret elements, wherein each of the latter contains a conjugating zone for two different spinning materials destined for the core; a sheath-forming and conjugating zone to form a concentric sheath around the thus conjugated core mass and an extruding zone for extruding the thus conjugated core-and-sheath through a discharge opening. List of References: (1) Great Britain, Patent Specification No. 760,179 of Oct. 31, 1956, granted to Paul Halbig. (2) Great Britain, Patent Specification No. 805,033 of Nov. 26, 1958, granted to E.I. Du Pont Nemours and Company, corresponding to U.S. Pat. No. 2,931,091. (3) Great Britain, Patent Specification No. 896,955 of May 23, 1962, granted to E.I. Du Pont Nemours and Company.

Inventors

• 👤 N Fukuma
• 👤 H Chayamichi
• 👤 T Okamoto
• 👤 H Henmi

Bibliographic Details