METHOD AND APPARATUS FOR MAKING SUBMICRON DIAMETER FIBERS AND WEBS THERE FROM

A method and device for the production of polymer filaments with a diameter of less than one micron. A plurality of polymer components are extruded through a spin pack and then attenuated using gas flows which are accelerated to achieve high velocity by means of a converging, diverging nozzle. The p...

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Bibliographische Detailangaben
1. Verfasser:	SIMMONDS, GLEN, E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Beschreibung
Zusammenfassung:	A method and device for the production of polymer filaments with a diameter of less than one micron. A plurality of polymer components are extruded through a spin pack and then attenuated using gas flows which are accelerated to achieve high velocity by means of a converging, diverging nozzle. The plurality polymer components may be extruded in an islands in the sea or segmented pie configuration. As a result of the high velocity gas flow, the plural components are split apart into their individual components resulting in filaments and fibers having a diameter or minor dimension of less than one micron.