FIBRILLATED COMPOSITE FIBER

PROBLEM TO BE SOLVED: To obtain a fibrillated composite fiber having dry-touch cotton- or linen-like feeling. SOLUTION: This fibrillated composite fiber is obtained as a composite fiber obtained by blend-spinning of mutually insoluble polyester and polyamide at a ratio within the range of (30:70) to...

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Bibliographische Detailangaben
Hauptverfasser:	HORIO TOMOYUKI, MINEMATSU HIROMASA
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 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a fibrillated composite fiber having dry-touch cotton- or linen-like feeling. SOLUTION: This fibrillated composite fiber is obtained as a composite fiber obtained by blend-spinning of mutually insoluble polyester and polyamide at a ratio within the range of (30:70) to (70:30) by wt., by treating the composite fiber with an alkali to elute and remove a part of the polyester in the fiber, thus producing fibrils in fiber surfaces, in such embodiments that (1) the polyester is a copolymer of a component that contains a metal salt of organic sulfuric acid, and that (2) the fibrils produced after the alkali treatment have thickness of 0.0001-0.05 denier, and are confounded with each other so as to form networks on external surfaces of the single-fiber aggregates.