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US 7,070,403 B2Granted
Device for producing fibers from a thermoplastic synthetic resin
AssigneeReifenhauser GmbH & Co. Maschinenfabrik
InventorsUlrich Dzialas, Detlef Frey, Hans-Georg Geus
Life of this patent
Estimating the term…
Abstract
A nozzle for producing filaments or fibers of thermoplastic synthetic resin has at the nozzle end one or more bores, preferably opening at a flat surface and receiving respective inserts or shaped bodies which are formfitting in the bores and have along their peripheries respective nozzle channels opening at orifices through which the synthetic resin is discharged. Air streams may be directed at the strand at an acute angle when fibers are to be produced.
Claims12
A device for producing fibers of a thermoplastic synthetic resin, comprising:
- a nozzle body formed with at least one melt passage for a molten thermoplastic synthetic resin and, at an outlet side of said nozzle body with a multiplicity of bores communicating with said passage, said outlet side of said nozzle body having a flat surface at which said bores open;
- and
- respective members shaped to fit into said bores and received therein, each of said members being formed along an outer periphery thereof, in a region of contact with a wall of the respective bore, at least one nozzle channel for said melt opening at a discharge orifice in the bore at said flat surface.
Dependencies are inferred from the claim text.