NON-WOVEN FABRIC FOR ELECTROMAGNETIC WAVE SHIELDING MATERIALS AND ELECTROMAGNETIC WAVE SHIELDING MATERIAL

The problem of the present invention is to provide: a non-woven fabric base material for electromagnetic wave shielding materials, which can exhibit excellent electromagnetic wave shielding properties; and an electromagnetic wave shielding material. A non-woven fabric for electromagnetic wave shield...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OYAMA KEISUKE, MASUDA TAKAO, SAEGUSA HIDEAKI, TAKAHAMA NOBUKO, JIAO XINYUE, SATO TOMOHIRO, KONDO YASUYOSHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BRAIDING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COTTON-WOOL ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS IMPREGNATING OR COATING OF PAPER KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS NON-WOVEN FABRICS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTED CIRCUITS PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	The problem of the present invention is to provide: a non-woven fabric base material for electromagnetic wave shielding materials, which can exhibit excellent electromagnetic wave shielding properties; and an electromagnetic wave shielding material. A non-woven fabric for electromagnetic wave shielding materials, which is a wet-type non-woven fabric comprising at least two types of stretched polyester-based short fibers and a non-stretched polyester-based short fiber, wherein the stretched polyester-based short fibers are independently selected from stretched polyester-based short fibers each having a fiber diameter of 3 microns or more and less than 12 microns and have different fiber diameters from each other and the non-stretched polyester-based short fiber has a fiber diameter of 3 to 5 microns inclusive; a non-woven fabric for electromagnetic wave shielding materials, which is a wet-type non-woven fabric comprising a stretched polyester-based short fiber having a fiber diameter of less than 3 microns and