HEAT ADHESIVE CONJUGATED FIBER, METHOD OF PRODUCING THE SAME AND FORMED FIBER PRODUCT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide heat adhesive conjugated fiber that can produce formed fiber products, for example, nonwoven fabric and the like that has sufficient bulkiness, excellent fabric hand, high morphological stability and recycling properties, formed fiber products using the same, typified by nonwoven fabric and a method of producing the conjugated fiber. SOLUTION: A propylene copolymer is used as the first component and a crystalline polypropylene is used as the second component to produce a conjugated fiber that has the eccentric sheath-core cross section comprising the sheath side made of the first component and the core side of the second component or the parallel arranged cross section of the first component and the second component and the resultant undrawn conjugated fiber is drawn under prescribed conditions to produce the objective conjugated fiber only having the three- dimensional crimps. The resultant hot gluing conjugated fiber is used to produce formed fiber products typified by nonwoven fabric.