Title:
CARBON FIBER PACKAGE AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/029740
Kind Code:
A1
Abstract:
A package in an optimal form obtained by winding a carbon fiber bundle having a fineness of 25,000-35,000 deniers. It has a high winding density and is less apt to become loose. Also provided is a process for producing the package. The carbon fiber package is one of the square-end type obtained by winding a carbon fiber bundle having a fineness of 25,000-35,000 deniers on a bobbin. In the carbon fiber package, the width range per unit fineness of the fiber bundle is 0.30 x 10-3 to 0.63 x 10-3 mm/denier, the traverse angle in the beginning of winding is in the range of 13 to 14°, and the traverse angle in the end of winding is 3° or larger. The proportion of the number of ends (W0) in the winding ratio (W) is in the range of 0.07-0.08.
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Inventors:
KIRIYAMA, Takayuki (Mitsubishi Rayon Co. Ltd.,1-2, Ushikawadori 4-chome, Toyohashi-sh, Aichi 01, 4408601, JP)
桐山 孝之 (〒01 愛知県豊橋市牛川通四丁目１番地の２ 三菱レイヨン株式会社豊橋事業所内 Aichi, 4408601, JP)
桐山 孝之 (〒01 愛知県豊橋市牛川通四丁目１番地の２ 三菱レイヨン株式会社豊橋事業所内 Aichi, 4408601, JP)
Application Number:
JP2007/067044
Publication Date:
March 13, 2008
Filing Date:
August 31, 2007
Export Citation:
Assignee:
MITSUBISHI RAYON CO., LTD. (6-41, Konan 1-chome Minato-k, Tokyo 06, 1088506, JP)
三菱レイヨン株式会社 (〒06 東京都港区港南一丁目６番４１号 Tokyo, 1088506, JP)
KIRIYAMA, Takayuki (Mitsubishi Rayon Co. Ltd.,1-2, Ushikawadori 4-chome, Toyohashi-sh, Aichi 01, 4408601, JP)
三菱レイヨン株式会社 (〒06 東京都港区港南一丁目６番４１号 Tokyo, 1088506, JP)
KIRIYAMA, Takayuki (Mitsubishi Rayon Co. Ltd.,1-2, Ushikawadori 4-chome, Toyohashi-sh, Aichi 01, 4408601, JP)
International Classes:
B65H55/04; B65H54/02; B65H54/38
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (8th Floor, 16th Kowa Bldg.9-20, Akasaka 1-chom, Minato-ku Tokyo 52, 1070052, JP)
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