Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1980-10-21
1982-06-01
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
2642103, 264237, 425 72S, D01D 104
Patent
active
043327648
ABSTRACT:
In the melt-spinning of filaments molten polymer is extruded downwardly through circularly arranged holes of a spinneret to form a circular group of filaments. Quench gas and finish liquid are conducted downwardly through the spinneret in alignment with a longitudinal axis defind by the filament group and are directed outwardly through the filament group. The filaments exhibit vibration during travel from the spinneret to the lower guide. The filaments are passed through and against a circular guide surface disposed around the filament group below the finish spray and above the lower guide. As a result, the filaments are deflected inwardly, in mutually spaced relationship, toward the longitudinal axis, whereby the amplitude of vibration of the filaments is reduced. The filaments are passed between walls extending upwardly from the guide surface and surrounding the filament group. Finish liquid is sprayed against the walls so that a finish environment is confined between the walls. The guide may comprise relatively movable members which close around the filament group to define a continuous guide surface.
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Chemiefasern Textilindustrie, vol. 29/81, Oct. 1979, entitled "Quench Duct Filament Oiling".
Brayford John R.
Cardell Max L.
Fiber Industries Inc.
Macleod Roderick B.
Woo Jay H.
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