PACKAGED CARBON FIBER PRECURSOR TOW, AND METHOD AND DEVICE FOR MANUFACTURING SAME

Title:

PACKAGED CARBON FIBER PRECURSOR TOW, AND METHOD AND DEVICE FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2011/019002

Kind Code:

A1

Abstract:

Provided is a packaged tow wherein a carbon fiber precursor tow (1), which has a flattened cross-sectional shape comprising a first surface and on the opposite side therefrom a second surface, is layered and packaged inside a container while in an untwisted state. The front end and back end of the carbon fiber precursor tow (1) are placed on top of the fully-packaged carbon fiber precursor tow. The portion of the tow from the bottom of the package to the tow front end (1a) placed on top of the carbon fiber precursor tow (1) is in an untwisted state. A top/bottom identification means is applied so that the top and bottom of the tow front end (1a) and back end (1b) can be distinguished, thereby making it possible to match the top and bottom surfaces of tow front ends (1a) and back ends (1b) from a plurality of packaging containers (4), preventing fiber breakage from occurring in a flameproofing step due to accumulated heat in twisted parts.

Inventors:

IKEDA KATSUHIKO (JP)
KAWAMURA ATSUSHI (JP)
INADA HIROMASA (JP)

Application Number:

PCT/JP2010/063408

Publication Date:

February 17, 2011

Filing Date:

August 06, 2010

Export Citation:

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Assignee:

MITSUBISHI RAYON CO (JP)
IKEDA KATSUHIKO (JP)
KAWAMURA ATSUSHI (JP)
INADA HIROMASA (JP)

International Classes:

D01F9/14; B65D77/00; B65D85/00; B65H54/76; B65H75/16; D01F6/18

Foreign References:

JP2009012882A	2009-01-22
JP2007169809A	2007-07-05
JP2004076174A	2004-03-11
JP2006176328A	2006-07-06
JP2008121147A	2008-05-29
JP2008150733A	2008-07-03
JPS4751979B1
JP2002138326A	2002-05-14

Other References: