Monofilament of polyhexamethylene adipamide having a surface lay

Details Monofilament of polyhexamethylene adipamide having a surface lay Monofilament of polyhexamethylene adipamide having a surface lay

1976-09-13

1977-11-01

Kendell, Lorraine T.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428364, 428373, 428397, D02G 300

Patent

active

040566528

ABSTRACT:
Heavy denier, polyamide monofils are produced by the coupled steps of spinning, quenching, drawing and winding. Quenching involves passage of the filament through an air gap and a water bath. There are two stages of drawing. In the first stage, pressurized steam is used to deorient surface polymer and as a draw assist. The product is characterized by a surface layer of oriented polymer having reduced orientation relative to the orientation of the core polymer.

REFERENCES:
patent: 3003222 (1961-10-01), Pitzl
patent: 3650884 (1972-03-01), Hansen
patent: 3671381 (1972-06-01), Hansen
patent: 3705074 (1972-12-01), Lamb et al.

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