THERMALLY ADHESIVE HOLLOW CONJUGATE FIBER

摘要

PURPOSE:To provide the subject fiber having excellent thermal adhesivity and crimp generativity and suitable for bulky thermally adhesive non-woven fabric by forming a hollow portion over both a relatively low melting point sheath portion and a relatively high melting point care portion and specifying a component ratio between the sheath and core portions and a hollow degree of the fiber. CONSTITUTION:A relatively low melting point component such as polyethylene or polypropylene and a high melting point component such as nylon 6 or polyethylene terephthate having a melting point higher >=10 deg.C (preferably >=50 deg.C) than that of a sheath portion are employed in a ratio of 20/80-70/30 (component ratio) for the sheath portion 1 and a core portion 2 (having e.g. a crescent or half moon shape), respectively, to provide the objective fiber wherein a hollow portion 3 having a hollow degree of 5-50% is formed over both the sheath portion 1 and the core portion 2.