Title:
MANUFACTURING METHOD OF HOLLOW YARN CARBON FIBER
Document Type and Number:
Japanese Patent JP2017137596
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a hollow yarn carbon fiber having a spinning process, a drying process and a carbonization treatment process as basic processes, wherein a heating treatment of a hollow yarn article obtained by the spinning and drying processes can effectively suppress breakage of a hollow yarn film due to drawing load, generated during continuously passing the hollow yarn film through a tubular furnace.SOLUTION: In a manufacturing method of a hollow yarn carbon film having a spinning process, a drying process and a carbonization treatment process as basic processes, a hollow yarn article by a wet spinning method or a dry wet spinning method is heating treated with passing through a tubular furnace by extruding a carbon fiber or a silicon carbide fiber together with a core liquid or a spinning dope.SELECTED DRAWING: None
Inventors:
WATANABE KENSUKE
Application Number:
JP2016019749A
Publication Date:
August 10, 2017
Filing Date:
February 04, 2016
Export Citation:
Assignee:
NOK CORP
International Classes:
D01F9/20; B01D69/08; B01D71/02
Attorney, Agent or Firm:
Toshio Yoshida
Kazuko Yoshida
Kazuko Yoshida