A process for the manufacture of a triboelectrically charged nonwoven,
wherein a fiber blend made of polyacrylnitrile fibers with a titer of
.ltoreq.1.7 dtex and of polyolefine fibers with a titer of .ltoreq.1.7
dtex is freed from lubricating agents and antistatic agents by washing, is
dried down to a moisture content of <1% by weight and is carded on a
longitudinal or randomizing card into a triboelectrically charged web with
a mass per area unit of 15-80 g/m.sup.2. This web is taken off by two
simultaneously running rolls and a transfer roll, so that the web is laid
on to a conveyor in machine direction, and bonded directly inside a
bonding set, the unbonded web being forwarded via 1 to 3 points of
transfer only.
Un processo per la fabbricazione di nonwoven triboelectrically caricato, in cui una miscela della fibra fatta delle fibre polyacrylnitrile con un titolo del dtex del ltoreq.1.7 e delle fibre della poliolefina con un titolo del dtex del ltoreq.1.7 è liberata dalla lubrificazione gli agenti e degli agenti antistatici lavandosi, è asciugato giù ad un tenore d'acqua di