PRODUCTION OF METALLIC POWDER-CONTAINING FIBER AND METALLIC FIBER

摘要

PROBLEM TO BE SOLVED: To mass-produce the subject fine fiber of specified length suitable as e.g. a constitutive material for cell electrode core materials by mixing metallic powder and a binder with a solvent followed by agitation and then by printing the resultant coating material in fibrous form which is then dried and peeled off. SOLUTION: First, metallic powder 14 and a binder 13 are mixed with a solvent 12 such as isophorone followed by agitation to prepare a metallic powder coating material 18. Secondly, the coating material is printed in fibrous form on a basal body 1 bearing an adhesive thin film 2a by use of a gravure press 19. Thirdly, the printed coating material is dried by a heater 9 and then cooled by a cooling air 10, and the resultant basal body with metallic power-contg. fibers formed thereon are wound around a core shaft 3. Finally, the basal body is passed through a water tank equipped with an ultrasonic generator to effect dissolution of the adhesive thin film 2a in water and peel the objective metallic powder-contg. fibers off the basal body.