Methods and apparatus for producing melt-spun filaments

Details Methods and apparatus for producing melt-spun filaments Methods and apparatus for producing melt-spun filaments

D - Textiles, Paper

01

D

18/565

D01D 5/092 (2006.01) D01D 11/04 (2006.01)

Patent

CA 1165070

ABSTRACT OF THE DISCLOSURE In the melt-spinning of filaments molten polymer is extruded down- wardly 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 defined 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 sur- face 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 environ- ment is confined between the walls. The guide may comprise relatively mov- able members which close around the filament group to define a continuous guide surface.

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