Hydrophilic, porous core-sheath fibre prepn. - by spinning polymer soln. and contacting with steam or vapour of coagulating liq., followed by coagulation

In the prepn. of hydrophilic core-sheath fibres or filaments from synthetic polymers with a porosity of >=10% and a water retention capacity of >=10% with fibre swelling lower than the water retention capacity by spinning a polymer soln. according to the dry-nozzle-wet spinning process, the fi...

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Bibliographic Details
Main Authors DRUSCHKE,FRANK,DR, REINEHR,ULRICH,DR
Format Patent
LanguageEnglish
German
Published 13.03.1980
Edition3
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
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Summary:In the prepn. of hydrophilic core-sheath fibres or filaments from synthetic polymers with a porosity of >=10% and a water retention capacity of >=10% with fibre swelling lower than the water retention capacity by spinning a polymer soln. according to the dry-nozzle-wet spinning process, the fibres are contacted with steam or vapour of another coagulating liq. immediately after emergence from the spinning nozzle and before the actual coagulation process in the precipitation bath. The fibres have high water adsorption without swelling, fast moisture transport and can be used in clothing. The polymer is pref. an acrylonitrile polymer contg. >=50 wt. % acrylonitrile.
Bibliography:Application Number: DE19782857152