SHEATH CORE FIBER AND ITS METHOD OF MANUFACTURE

摘要

A sheath core fiber having an inner core (10) made from an oriented thermoplastic material, such as polyester, nylon, acrylic, and olefin, and a sheath (18) made of a nonthermoplastic material, such as regenerated cellulose and protein. The fiber maintains the crease and tear resistance of the core material, yet has the water sorptivity and dyeability of the sheath material. A method of manufacturing such a fiber is also disclosed.