As for this invention, after the producing the nonwoven fabrics hydrophilic (early hydrophilic) it reveals to brief, furthermore, heat-treating the nonwoven fabrics, you say that hydrophilic recovery (durable hydrophilic) does to brief, it designates that the polypropylene nonwoven fabrics where early hydrophilic and durable hydrophilic are superior together are developed as purpose. The non ion type surface active agent which consists of the alkylene oxide addition product of fatty alcohol melting point (Tm) vis-a-vis the propylene olefin random copolymer 100 weight section which is the range of 125 - the 155 , 0.5 - 5 weight sections it is something which offers the nonwoven fabrics and its application which consist of the fiber and the particular fiber of the propylene copolymer constituent which is included.本発明は、不織布の製造後短時間に親水性(初期親水性)が発現し、しかも、不織布を熱処理しても短時間に親水性が回復(耐久親水性)するという、初期親水性及び耐久親水性が共に優れるポリプロピレン不織布を開発することを目的とする。融点(Tm)が125~155℃の範囲にあるプロピレン・α-オレフィンランダム共重合体100重量部に対して、脂肪族アルコールのアルキレンオキサイド付加物からなる非イオン系界面活性剤を0.5~5重量部含むプロピレン共重合体組成物の繊維、当該繊維からなる不織布及びその用途を提供するものである。
