The present invention has a three-dimensional crimps, and consists of a core component comprising a sheath component comprising a linear low density polyethylene, a thermoplastic resin having a high melting point, the center of gravity of the core component is displaced from the center of the fiber The first fibrous layer comprises a first core-sheath type composite fibers and a and steric crimps, it consists of a core component comprising a sheath component comprising a high density polyethylene, a thermoplastic resin having a high melting point, the center of gravity of the core component There comprises a second fibrous layer comprising a second core-sheath composite fiber is offset from the center of gravity of the fibers, at least a portion of the first sheath-core type composite fiber and a second core-sheath type composite fiber, the first sheath-core It is thermally bonded by the composite fiber and the sheath component of the second core-sheath type composite fiber, about the non-woven fabric.本発明は、立体捲縮を有し、直鎖状低密度ポリエチレンを含む鞘成分と、高い融点を有する熱可塑性樹脂を含む芯成分とから成り、芯成分の重心が繊維の重心からずれている第1芯鞘型複合繊維を含む第1繊維層;および立体捲縮を有し、高密度ポリエチレンを含む鞘成分と、高い融点を有する熱可塑性樹脂を含む芯成分とから成り、芯成分の重心が繊維の重心からずれている第2芯鞘型複合繊維を含む第2繊維層を含み、第1芯鞘型複合繊維と第2芯鞘型複合繊維の少なくとも一部が、第1芯鞘型複合繊維と第2芯鞘型複合繊維の鞘成分により熱接着している、不織布に関する。
