Heissiegelfähige Faserschicht und Verfahren zur Herstellung

摘要

A hotmelt-adhesive fiber sheet is composed of conjugate fibers comprising (I), as first component, a mixture of 20% by weight or more of a terpolymer of ethylene, an acrylic acid ester and maleic anhydride, together with 80% by weight or less of a polyolefin, the maleic anhydride content of the mixture being 0.7% by weight or more; and (II) as a second component, a thermoplastic resin having a melting point 30 DEG C or more above that of the first component; the first component being formed continuously along the length of the fiber so as to occupy at least a part of the surface of the fiber; the average fiber diameter being 10 mu m or less and the contact points of said conjugate fibers being fixed by melt adhesion of the terpolymer. The sheet is produced by hot melt blow spinning of appropriate components to form conjugate fibers which are then heat-treated in web form.