SPIRALLY ACCUMULATED NONWOVEN FABRIC OF CENTRIFUGALLY SPUN FILAMENT, METHOD OF PRODUCING THE SPIRALLY ACCUMULATED FABRIC, LATITUDINALLY PARALLELED FILAMENT NONWOVEN FABRIC, AND METHOD OF PRODUCING THE LATITUDINALLY PARALLELED FABRIC

摘要

PROBLEM TO BE SOLVED: To provide a spirally accumulated nonwoven fabric (spirally accumulated web) made of filaments having a finer yarn diameter than ever, to provide a method of producing the spirally accumulated web, improved in productivity by spinning the filaments through a centrifugal spinning process to increase a spinning speed, to provide a latitudinally paralleled nonwoven fabric (latitudinally paralleled web), and to provide a method of producing the latitudinally paralleled web. ;SOLUTION: This method of producing the spirally accumulated web of the centrifugally spun filaments comprises injecting filaments from spinning holes of a rotary disk, or injecting from spaces near to the spinning holes together with hot air, then catching the injected filaments in air downward blowing along a collecting ring which is located outside the rotary disk at a certain distance from the disk further making the caught filaments downward advance together with the air and finally transferring the advanced filaments onto a belt horizontally traveling below the rotary disk, and the spirally accumulated web of the centrifugally spun filaments is produced by the method. The method of producing the latitudinally paralleled web comprises transversely drawing the spirally accumulated web of the centrifugally spun filaments, and the latitudinally paralleled web is produced by the method.;COPYRIGHT: (C)2001,JPO