Reifenhaeuser Gmbh & Co Kg Maschinenfabrik

Martin Swiatek

Detlef Frey

Hans-Georg Geus

Michael Nitschke

Martin Neuenhofer

An apparatus for making a spunbond nonwoven from endless filaments of a thermoplastic synthetic resin has a spinneret for spinning the filaments in a filament-travel direction into a spinning zone and a monomer aspirator downstream of the spinneret and having two vacuum intake ports flanking the spinning zone zone, horizontally confronting each other, and each extending transversely to the direction opposite one another. Suction means connected to the two ports withdraws gas through both the vacuum intake ports. The suction and/or the ports are set up to vary the flow through the vacuum intake ports such that substantially more gas flows through one of the ports than through the other.

Method and apparatus for making a spunbond nonwoven from endless filaments

An apparatus for making a spunbond nonwoven from monofilaments of thermoplastic synthetics has a spinneret for spinning and emitting the filaments in a travel direction, a cooler downstream of the spinneret for cooling the spun filaments, and a stretcher downstream of the cooler for stretching the filaments. An intermediate passage extending in the travel direction between the cooler and the stretcher has upstream and downstream converging passage sections. The upstream passage section in the travel direction of the filaments having a shorter length than the downstream passage section in the travel direction of the filaments. A ratio B/Bof an inlet width Bto an outlet width Bof the upstream passage section is 1.5 to 5.5. A ratio of an inlet width b, to an outlet width b, of the downstream passage section is 1 to 4.

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Rheinbach, Germany

Martin Swiatek