Invention Grant
- Patent Title: Method of producing islands-in-sea type composite spun fiber
- Patent Title (中): 海岛型复合纺丝纤维的生产方法
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Application No.: US12088659Application Date: 2006-09-28
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Publication No.: US08128850B2Publication Date: 2012-03-06
- Inventor: Hironori Goda , Miyuki Numata , Mie Kamiyama , Nobuyuki Yamamoto , Tamio Yamamoto
- Applicant: Hironori Goda , Miyuki Numata , Mie Kamiyama , Nobuyuki Yamamoto , Tamio Yamamoto
- Applicant Address: JP Osaka
- Assignee: Teijin Fibers Limited
- Current Assignee: Teijin Fibers Limited
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-283966 20050929
- International Application: PCT/JP2006/319909 WO 20060928
- International Announcement: WO2007/037512 WO 20070405
- Main IPC: D01D5/12
- IPC: D01D5/12 ; D01D5/36 ; D01F8/14 ; D02J1/22
Abstract:
The method of producing an islands-in-sea type composite spun fiber having an island component diameter of 1 μm or less according to the present invention comprises drawing (superdrawing) with a total draw ratio of from 5 to 100 an undrawn islands-in-sea type composite spun fiber having been prepared by spinning at a spinning speed of from 100 to 1,000 m/min, at temperatures higher than the glass transition points of both the polymer forming the sea component and the polymer forming the island components of the composite spun fiber.
Public/Granted literature
- US20090042031A1 METHOD OF PRODUCING ISLANDS-IN-SEA TYPE COMPOSITE SPUN FIBER Public/Granted day:2009-02-12
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