FREMGANGSMAATE VED SMELTESPINNING AV POLYMERFILAMENTER

Conjugate filament of two dissimilar polymers, with a latent helical crimp and susceptible to deep dyeing, is continuously produced by generating a stream of the first polymer and a stream of the second polymer, converging them to merge side-by-side as a combined stream before extrusion from the fac...

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Bibliographische Detailangaben
Hauptverfasser:	BROMLEY, JAMES ERNEST, YU, JING-PEIR
Format:	Patent
Sprache:	nor
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Beschreibung
Zusammenfassung:	Conjugate filament of two dissimilar polymers, with a latent helical crimp and susceptible to deep dyeing, is continuously produced by generating a stream of the first polymer and a stream of the second polymer, converging them to merge side-by-side as a combined stream before extrusion from the face of a spinneret, quenching the combined stream to form a conjugate filament of two sub-filaments side-by-side, withdrawing the filament at more than 2200 mpm and winding it on a bobbin at a winding speed greater than 3000 mpm. The polymers, spinning speed and winding speed are chosen to give a filament shrinkage of more than 10%.