Products used in this application:
Continuous Filament Fiber Entanglement
Continuous filament fiber entanglement is achieved by accurately controlling pressure to a venturi. This sketch shows a QB1 electronic proportional valve controlling pilot pressure to a PSR air piloted pressure regulator (for increased flow capacity) to control pressure in a venturi to entangle the fiber. This process is used in many yarn and threadmill applications to create many types of textiles.
Continuous filament fiber entanglement has many advantages over spun (staple) processes. Mainly, it will not shed loose fibers like staple fibers. It is more cost-effective to manufacture and it provides the technology possible to create filament looks that were not practical in the past.
A tighter entanglement is achieved with higher pressure and a looser entanglement is achieved with less pressure. Based on flow requirements a QB3 or a QB4 proportional regulator could also be used for this application.