Extrusion pack for sheath-core filaments

Details Extrusion pack for sheath-core filaments Extrusion pack for sheath-core filaments

1976-11-26

1977-10-04

Baldwin, Robert D.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Plural distinct feed inlets

4251315, D01D 300

Patent

active

040521460

ABSTRACT:
An extrusion pack for the production of sheath-core filaments having a high filament density. The pack comprises a stacked assemblage of a stream proportioning means, a stream conjugating means and a spinneret means. The stream conjugating means having upper and lower chambers for forming the sheath-core filaments. The location and spacing of these chambers providing a high filament density.

REFERENCES:
patent: 3017686 (1962-01-01), Breen et al.
patent: 3669591 (1972-06-01), Fermi et al.
patent: 3787162 (1974-01-01), Cheetham
patent: 3992499 (1976-11-01), Lee

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