Title:
海島型複合繊維束およびその製造方法
Document Type and Number:
Japanese Patent JP4473867
Kind Code:
B2
Abstract:
The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the range of from 10 to 1,000 nm and the intervals between the island parts adjacent to each other are 500 nm or less. The islands-in-sea type composite fiber is produced by melt spinning the sea part polymer and the island part polymer mentioned above through a spinneret for an islands-in-sea type composite fiber and taking up the spun fiber at a speed of 400 to 6,000 m/min. Dissolution and removal of the sea part polymer from the composite fiber gives a group of fine fibers having a thickness of 10 to 1,000 nm and useful for clothing, industrial materials and other applications.
Inventors:
Kamiyama Saegusa
Miyuki Numata
Miyuki Numata
Application Number:
JP2006511882A
Publication Date:
June 02, 2010
Filing Date:
March 30, 2005
Export Citation:
Assignee:
TEIJIN FIBERS LIMITED
International Classes:
D01F8/04; D01D5/36; D01F8/14; D02J1/22; D03D15/00; D04C1/02; D06M11/00; D06M11/38
Domestic Patent References:
| JP2000110028A | ||||
| JP53119317A | ||||
| JP2004169261A | ||||
| JP2004277966A | ||||
| JP8246242A | ||||
| JP6341018A | ||||
| JP1282390A | ||||
| JP54093115A |
Attorney, Agent or Firm:
Hideko Mihara