IMPIANTO PER LA PRODUZIONE DI UN NASTRO DI VELO NON TESSUTO OTTENUTO DALLA FILATURA DI FILAMENTI STIRATI AERODINAMICAMENTE DI MATERIALE SINTETICO

摘要

A spun-filament nonwoven web is deposited on a sieve belt from a spinning head producing a curtain of thermoplastic filaments which traverse a cooling chamber by drawing the filaments in a drawing nozzle separate from the cooling chamber and passing the filaments through a delivery unit and in the form of a jet pump, air flow through which is controlled at least in part by a suction blower below that sieve belt.