ELECTRICALLY CONDUCTIVE CELLULOSIC FIBER

PURPOSE:To provide an electrically conductive cellulosic fiber containing copper sulfide in the fiber cross-section, stable to dry-heat, wet-heat and hot-water treatment, etc., having excellent electrical conductivity and suitable as an electromagnetic wave shielding material, material for heating e...

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Bibliographische Detailangaben
Hauptverfasser:	ISOBE AKIHIRO, EMORI SHUICHI, YAMADA HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BASIC ELECTRIC ELEMENTS CABLES CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CONDUCTORS ELECTRICITY FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR INSULATORS LAUNDERING NATURAL OR ARTIFICIAL THREADS OR FIBRES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES 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:	PURPOSE:To provide an electrically conductive cellulosic fiber containing copper sulfide in the fiber cross-section, stable to dry-heat, wet-heat and hot-water treatment, etc., having excellent electrical conductivity and suitable as an electromagnetic wave shielding material, material for heating element, etc. CONSTITUTION:For example, a blue yarn produced by spinning a cupri- ammonium cellulose solution composed of cellulose, ammonia and copper is sulfidized with a sodium sulfide solution to obtain an electrically conductive cellulose fiber containing copper sulfide in the fiber cross-section. The distribution of copper sulfide in the cross-section of the fiber is dependent upon the sulfidization agent used in the above process and is e.g. (A) uniform distribution from the core to the surface of the fiber, (B) uniform distribution within 80% of the radius and (C) annular distribution within 20-95% of the radius.