Stretch nonwoven fabric and tapes

摘要

A nonwoven fabric comprising bicomponent fibers having a phase structure made of plural resins different in heat shrinkage factor, wherein the bicomponent fibers are orientated nearly parallel to the plane direction and crimped to an average curvature radius of 20 to 200μm nearly uniformly in the thickness direction. This nonwoven fabric is substantially free from pressure-sensitive adhesives and the bicomponent fibers of the fabric are present in a substantially non-fused state. The bicomponent fibers are each constituted of both a polyalkylene terephthalate resin and a modified polyalkylene terephthalate resin and may have any of side-by-side type structure and core-sheath type structure. Since such bimetal-type bicomponent fibers having specific crimps are contained in the fabric in a properly entangled state, the fabric has high stretchability and can be easily cut by hand without scissors, thus being suitable for tapes such as bandages and supporters.