JPS57140333A - Coating method for optical fiber - Google Patents

Coating method for optical fiber

Info

Publication number
JPS57140333A
JPS57140333A JP56025318A JP2531881A JPS57140333A JP S57140333 A JPS57140333 A JP S57140333A JP 56025318 A JP56025318 A JP 56025318A JP 2531881 A JP2531881 A JP 2531881A JP S57140333 A JPS57140333 A JP S57140333A
Authority
JP
Japan
Prior art keywords
optical fiber
cooling
fluid
inlet
agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56025318A
Other languages
Japanese (ja)
Inventor
Takao Kimura
Seiji Shibuya
Wataru Komatsu
Tsugio Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Furukawa Electric Co Ltd
Priority to JP56025318A priority Critical patent/JPS57140333A/en
Publication of JPS57140333A publication Critical patent/JPS57140333A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/12—General methods of coating; Devices therefor
    • C03C25/18—Extrusion
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02718—Thermal treatment of the fibre during the drawing process, e.g. cooling
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/50—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket
    • C03B2205/52—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket by direct contact with liquid coolant, e.g. as spray, mist
    • C03B2205/53—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket by direct contact with liquid coolant, e.g. as spray, mist by passage through liquid coolant bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

PURPOSE:To reduce the size of an apparatus and to obtain a coated layer with no change in thickness by passing an optical fiber immediately after spinning through a fluid for cooling and a coating agent packed in the same die container in 2 layers. CONSTITUTION:A perform rod 1 is melted by heating at about 2,000 deg.C with a heating furnace 2 and spun into an optical fiber 3 having about 1mm. outside diameter. The hot fiber 3 immediately after the spinning is passed through a die container 4 having a die at the outlet at about 15m/min drawing speed. The container 4 is supplied with a coating agent 6 such as silicone resin from a supply inlet 7 under pressure with a pump or the like, and a fluid 5 for cooling such as ethanol which has lower specific gravity than the agent 6 and does not react with the agent 6 is circulated between an inlet 8 and an outlet 9 while cooling. By feeding gaseous N2 from an inlet 10, the ignition of the fluid 5 is prevented.
JP56025318A 1981-02-23 1981-02-23 Coating method for optical fiber Pending JPS57140333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025318A JPS57140333A (en) 1981-02-23 1981-02-23 Coating method for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025318A JPS57140333A (en) 1981-02-23 1981-02-23 Coating method for optical fiber

Publications (1)

Publication Number Publication Date
JPS57140333A true JPS57140333A (en) 1982-08-30

Family

ID=12162633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025318A Pending JPS57140333A (en) 1981-02-23 1981-02-23 Coating method for optical fiber

Country Status (1)

Country Link
JP (1) JPS57140333A (en)

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