Title:
SPINNERET FOR SEA-ISLAND TYPE CONJUGATE FIBER
Document Type and Number:
Japanese Patent JP2020165026
Kind Code:
A
Abstract:
To provide a spinneret for a sea-island type conjugate fiber suitable for manufacturing an ultrafine fiber.SOLUTION: In a spinneret for melt-spinning a sea-island type conjugate fiber group in which a large number of island component polymers in a mutually separated state are independently present in an extended state within a sea component polymer along a fiber axis direction in one single fiber, a composite flow formed of a core made of the island component polymer component and a sheath made of the sea component polymer is gradually made thin inside one extrusion hole as two or more single flows and spinned.SELECTED DRAWING: Figure 1
Inventors:
YONEDA YASUYUKI
MORISHIMA KAZUHIRO
MORISHIMA KAZUHIRO
Application Number:
JP2019065903A
Publication Date:
October 08, 2020
Filing Date:
March 29, 2019
Export Citation:
Assignee:
TEIJIN FRONTIER CO LTD
International Classes:
D01D4/02; D01D5/36
Domestic Patent References:
| JP2008144289A | 2008-06-26 | |||
| JP2009091680A | 2009-04-30 | |||
| JP2005015926A | 2005-01-20 | |||
| JP2007039858A | 2007-02-15 | |||
| JPS5812367B2 | 1983-03-08 |
Attorney, Agent or Firm:
Taro Tameyama