Title:
METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER CABLE
Document Type and Number:
WIPO Patent Application WO/2019/111626
Kind Code:
A1
Abstract:
Provided are a method and an apparatus both for manufacturing an optical fiber cable that rarely undergoes the cracking of a coating after the production of the optical fiber cable. The apparatus is provided with: a primary irradiation unit (106) for irradiating each point on an optical fiber cable, in which an ultraviolet ray-curable resin that is one of ultraviolet ray-curable resins constituting the coating and constitutes at least a surface layer of the coating is uncured yet, with ultraviolet ray; and a secondary irradiation unit (108) for irradiating each point on the optical fiber cable, which is produced by means of the primary irradiation unit (106) and in which the ultraviolet ray-curable resin constituting at least the surface layer of the coating is cured, with ultraviolet ray. The temperature of the optical fiber cable immediately before the enter of the optical fiber cable into the secondary irradiation unit (108) is 50 to 300°C inclusive.
Inventors:
YAMASHIRO KENJI (JP)
KAWAHARA HIROO (JP)
KAWAHARA HIROO (JP)
Application Number:
PCT/JP2018/041357
Publication Date:
June 13, 2019
Filing Date:
November 07, 2018
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
C03C25/6226; C03C25/1065; G02B6/44
Domestic Patent References:
| WO2018189991A1 | 2018-10-18 |
Foreign References:
| JPH10245245A | 1998-09-14 | |||
| JP2010117527A | 2010-05-27 | |||
| JP2014077918A | 2014-05-01 | |||
| JPH05213636A | 1993-08-24 | |||
| JPH10297942A | 1998-11-10 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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