Title:
MEANS FOR PRODUCING EXTREMELY FINE FILAMENT OF WHOLLY AROMATIC POLYESTER
Document Type and Number:
WIPO Patent Application WO/2006/095661
Kind Code:
A1
Abstract:
A means for producing an extremely fine filament of a wholly aromatic polyester and a non-woven fabric comprising the filament, characterized in that a tensile force of 30 MPa per single yarn is imparted to a wholly aromatic polyester filament and the filament is heated by a infrared ray flux, to thereby form an extremely fine filament which has been drawn at a draw ratio of seven or more, exhibits high molecular orientation and has a size of 20 μm or less, and in that a non-woven fabric comprising extremely fine filaments of a wholly aromatic polyester is produced through piling up the above drawn filaments on a conveyer. The above means allows the production of a drawn filament of a wholly aromatic polyester and a non-woven fabric comprising the filament without the need for an apparatus being special, highly precise or of high level, with the use of a simple and easy means.
Inventors:
SUZUKI AKIHIRO (JP)
Application Number:
PCT/JP2006/304182
Publication Date:
September 14, 2006
Filing Date:
February 27, 2006
Export Citation:
Assignee:
YAMANASHI TLO CO LTD (JP)
SUZUKI AKIHIRO (JP)
SUZUKI AKIHIRO (JP)
International Classes:
D02J1/22; D01F6/62
Domestic Patent References:
| WO2004027133A1 | 2004-04-01 | |||
| WO2004085723A1 | 2004-10-07 | |||
| WO1995006765A1 | 1995-03-09 | |||
| WO2000073556A1 | 2000-12-07 |
Foreign References:
| JP2003166115A | 2003-06-13 | |||
| JP2002161451A | 2002-06-04 |
Attorney, Agent or Firm:
Kurihara, Kazuhiko (11-5-1002 Takashimadaira 3-chom, Itabashi-ku Tokyo, JP)
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