Process for the production of highly shrinkable split tows of acrylonitrile polymers

High-shrinkage stretch-broken tows of acrylonitrile polymers are obtained by fixing with saturated steam at maximum temperatures of 140 DEG C. after drawing and before stretch breaking and stretch breaking at a draft of at least 30%.

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Bibliographische Detailangaben
Hauptverfasser:	MIESSEN, RALF, SCHULTZE-GEBHARDT, FRITZ, WILSING, HANS
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS MECHANICAL FINISHING OF YARNS OR ROPES NATURAL OR ARTIFICIAL THREADS OR FIBRES PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING SPINNING TEXTILES WARPING OR BEAMING YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	High-shrinkage stretch-broken tows of acrylonitrile polymers are obtained by fixing with saturated steam at maximum temperatures of 140 DEG C. after drawing and before stretch breaking and stretch breaking at a draft of at least 30%.