Spinneret orifices and four-wing filament cross-sections therefr

Details Spinneret orifices and four-wing filament cross-sections therefr Spinneret orifices and four-wing filament cross-sections therefr

1986-07-29

1987-11-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428364, 428373, 428374, 57243, 57246, 57248, D02G 300

Patent

active

047074094

ABSTRACT:
Spinneret having an orifice defined by two intersecting slots and each intersecting slot in turn defined by three quadrilateral sections connected in series: the middle quadrilateral section of each intersecting slot having a greater width than the other two quadrilateral sections of the same intersecting slot and intersecting the other intersecting slot at its middle quadrilateral section to form therewith a generally X-shaped opening, with each of the other two quadrilateral sections of each intersecting slot being longer than the middle quadrilateral section of each intersecting slot; and a four-winged filament cross-section extruded through the aforedescribed spinneret orifice.

REFERENCES:
patent: 4245001 (1981-01-01), Phillips et al.
patent: 4408977 (1983-10-01), Phillips
patent: 4472477 (1984-09-01), Phillips

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