Method for manufacturing hydrophilic fiber, and method for manufacturing nonwoven fabric

Provided are a method for manufacturing a hydrophilic fiber having excellent hydrophilicity retaining ability and a method for manufacturing a nonwoven fabric. A step is performed for discharging a sheath material 11 that has a thermoplastic resin as a main raw material and a core material 12 that h...

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Bibliographische Detailangaben
Hauptverfasser:	ENDOU, KOUKI, KANEKO, NAOKI, KUSAKA, SATOSHI, TANAKA, NAOKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS SPINNING TEXTILES TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	Provided are a method for manufacturing a hydrophilic fiber having excellent hydrophilicity retaining ability and a method for manufacturing a nonwoven fabric. A step is performed for discharging a sheath material 11 that has a thermoplastic resin as a main raw material and a core material 12 that has a thermoplastic resin including a hydrophilizing agent as a main raw material each from a hole of a nozzle for composite spinning, and melt-spinning a core-sheath-type composite fiber 1, a hydrophilic fiber is manufactured with the hydrophilizing agent included in at least the core material 12 and the hydrophilizing agent included in a lower content ratio in the sheath material 11 than in the core material 12, as needed, and a nonwoven fabric is manufactured using the hydrophilic core-sheath composite fiber manufactured by the aforementioned method.