APPARATUS FOR PRODUCING A NONWOVEN WEB

In the production of a spunbond web by aerodynamically stretching thermoplastic filaments from a spinneret, the drawing nozzle is formed by two nozzle-forming units each of which has a temperature control device, especially a heater, to minimize deformation at the drawing nozzle defining wall. The r...

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Bibliographische Detailangaben
Hauptverfasser: HOFEMEISTER, HANS JURGEN, SCHOMER, UDO, GEUS, HANS GEORG, ROSNER, FALK, SIEVERS, KARSTEN, FREY, DETLEF
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:In the production of a spunbond web by aerodynamically stretching thermoplastic filaments from a spinneret, the drawing nozzle is formed by two nozzle-forming units each of which has a temperature control device, especially a heater, to minimize deformation at the drawing nozzle defining wall. The result is a reduction in the tolerance of the basis weight of the spunbond web.