ION-EXCHANGING NONWOVEN FABRIC AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide an ion-exchanging nonwoven fabric having a wide surface area and excellent ion-exchanging capacity, and to provide a method for producing the nonwoven fabric. SOLUTION: The ion-exchanging nonwoven fabric includes an ion-exchanging fiber containing an ion-exchanging r...

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Hauptverfasser:	KAWATSU YOSHIAKI, AMAGASA TAKAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SPINNING TEXTILES THEIR RELEVANT APPARATUS TRANSPORTING 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 TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an ion-exchanging nonwoven fabric having a wide surface area and excellent ion-exchanging capacity, and to provide a method for producing the nonwoven fabric. SOLUTION: The ion-exchanging nonwoven fabric includes an ion-exchanging fiber containing an ion-exchanging resin, and an alkali-resistant resin or an acid-resistant resin, existing together, and having an average fiber diameter of ≤1 μm. The method for producing the ion-exchanging nonwoven fabric includes forming a precursor nonwoven fabric including the fiber having an average fiber diameter of ≤1 μm, and enabling an ion-exchanging group to be introduced by using a spinning apparatus having one or more liquid-extruding parts capable of extruding spinning liquids, and one of a gas-ejecting part positioned on the upstream side from each of the liquid-extruding parts, and capable of ejecting a gas, and treating the precursor nonwoven fabric with an alkali or an acid. COPYRIGHT: (C)2011,JPO&INPIT