FINE DENIER MULTICOMPONENT FIBERS

A method is provided for producing fine denier multicomponent thermoplastic polymer filaments incorporating high melt-flow rate polymers. Multicomponent filaments are extruded such that the high melt-flow rate polymer component is substantially surrounded by one or more low melt-flow rate polymer co...

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Bibliographische Detailangaben
Hauptverfasser: MCMANUS, JEFFREY, LAWRENCE, DUELLMAN, JUSTIN, MAX, HAYNES, BRYAN, DAVID, CLARK, DARRYL, FRANKLIN, SMITH, KEVIN, EDWARD
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method is provided for producing fine denier multicomponent thermoplastic polymer filaments incorporating high melt-flow rate polymers. Multicomponent filaments are extruded such that the high melt-flow rate polymer component is substantially surrounded by one or more low melt-flow rate polymer components. The extruded multicomponent filament is then melt-attenuated with a significant drawing force to reduce the filament diameter and form continuous, fine denier filaments.