HYDROPHILIC FIBRES AND FILAMENTS OF SYNTHETIC POLYMERS

HYDROPHILIC FIBRES AND FILAMENTS OF SYNTHETIC POLYMERS

The invention relates to dry-spun filaments or fibers with porous structures of filament-forming synthetic polymers with a moisture absorption of at least 2 % at 65 % relative humidity and at 21.degree.C and with a water retention capacity of at least 20 % as well as to a process for their productio...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: REINEHR, ULRICH, SANDHU, SURINDER S, PIEPER, CHRISTIAN, JUNGVERDORBEN, HERMANN-JOSEF, HERBERTZ, TONI
Format: Patent
Sprache:eng ; fre
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to dry-spun filaments or fibers with porous structures of filament-forming synthetic polymers with a moisture absorption of at least 2 % at 65 % relative humidity and at 21.degree.C and with a water retention capacity of at least 20 % as well as to a process for their production from filament-forming acrylonitrile polymer by dry spinning in a spinning solvent, which comprises introducing into the solvent from 5 to 50% by weight, based on the total solvent and solids, of an additive substance which is solid under normal conditions and which:a) has a higher melting or sublimation point than the spinning solvent used;b) is readily miscible with the spinning solvent and with a washing liquid; andc) is a non-solvent for the polymer to be spun, and washing the additive substance out of the freshly spun filaments and where required converting the filaments into fibers. The novel hydrophilic filaments and fibers resemble natural fibers.