The present invention relates to perforation device for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of between 0.15 and 0.25 and a ratio of hole size to embossed point size of between 0.15 and 0.25.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 11/036,513, filed Jan. 14, 2005 now U.S. Pat. No. 7,192,392 which is a continuation of PCT/EP03/07216, filed Jul. 5, 2003, claiming priority from German Application No. 102 32 147.7, filed Jul. 16, 2002 which is hereby incorporated herein in its entirety by reference.
