Title:
DEVICE FOR MANUFACTURING ULTRAFINE FIBERS
Document Type and Number:
WIPO Patent Application WO/2019/004356
Kind Code:
A1
Abstract:
A device 1 for manufacturing ultrafine fibers manufactures the ultrafine fibers by melting and stretching raw filaments. This device 1 for manufacturing ultrafine fibers includes: a plurality of raw filament passage parts 111 to 11n disposed in a linear arrangement; and a laser irradiation device 9 that irradiates laser light on a plurality of raw filaments, which have passed through the plurality of raw filament passage parts 111 to 11n together with an air current, to melt the plurality of raw filaments and cause the same to oscillate and vibrate. The laser irradiation device 9 is configured such that the beam diameter is reduced commensurately with distance away from the device, and a convergent beam is outputted in which the beam center is parallel to the arrangement direction of the plurality of raw filament passage parts 111 to 11n.
Inventors:
ICHIBAYASHI TAKU (JP)
KUMAGAI YOSHIHIRO (JP)
KUMAGAI YOSHIHIRO (JP)
Application Number:
PCT/JP2018/024581
Publication Date:
January 03, 2019
Filing Date:
June 28, 2018
Export Citation:
Assignee:
JXTG NIPPON OIL & ENERGY CORP (JP)
International Classes:
D02J1/22
Domestic Patent References:
| WO2015141495A1 | 2015-09-24 |
Foreign References:
| JP2010185162A | 2010-08-26 |
Attorney, Agent or Firm:
OGAWA, Moriaki et al. (JP)
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