JPS6366782B2 - - Google Patents
Info
- Publication number
- JPS6366782B2 JPS6366782B2 JP57154335A JP15433582A JPS6366782B2 JP S6366782 B2 JPS6366782 B2 JP S6366782B2 JP 57154335 A JP57154335 A JP 57154335A JP 15433582 A JP15433582 A JP 15433582A JP S6366782 B2 JPS6366782 B2 JP S6366782B2
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- resin
- optical fiber
- optical transmission
- glass fiber
- 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.)
- Expired
Links
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は光伝送用ガラスフアイバの樹脂被覆装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a resin coating device for a glass fiber for optical transmission.
（従来の技術）
光伝送用ガラスフアイバ（以下光フアイバと称
す）は、大容量、低損失といつた優れた伝送特性
に加え、無誘導、軽量という利点から新しい情報
伝送方式として急速に実用化が展開されている。
光フアイバはその素材がガラスであり、200μｍ
以下の細径に加工されることから、その機械的強
度は最も重要な特性の一つである。この機械強度
改善のため、光フアイバ母材を抵抗炉、高周波
炉、CO2レーザー、酸水素炎等で溶融液紡糸した
直後に、樹脂組成物を塗布、硬化させ、ガラスの
処女強度を保持すると共に、その後の傷の発生を
防ぐ、いわゆるタンデムプライマリーコート法が
採られている（特開昭51−100734号公報参照）。(Prior Technology) Glass fibers for optical transmission (hereinafter referred to as optical fibers) have been rapidly put into practical use as a new information transmission method due to their excellent transmission characteristics such as large capacity and low loss, as well as the advantages of non-induction and light weight. is being expanded.
The optical fiber is made of glass and has a diameter of 200 μm.
Mechanical strength is one of the most important properties since it is processed into the following small diameters. To improve this mechanical strength, immediately after the optical fiber base material is melt-spun using a resistance furnace, high-frequency furnace, CO 2 laser, oxyhydrogen flame, etc., a resin composition is applied and cured to maintain the virgin strength of the glass. At the same time, a so-called tandem primary coating method has been adopted to prevent the subsequent occurrence of scratches (see Japanese Patent Application Laid-open No. 100734/1983).
この樹脂組成物塗布には、従来よりタイスデイ
ツピング方式、フエルト方式、スプレー方式等が
行なわれてきたが、各々一長一短があり、光フア
イバに非接触で塗布できるという点でダイスデイ
ツピング方式とスプレー方式が優れており、最も
多く採用されている。しかしダイスデイツピング
方式は２〜3μｍ以下の塗膜形成が不可能であり、
スプレー方式では光フアイバに均一な被膜を得る
と、すなわち、樹脂組成物の塗膜厚の制御が難し
いという欠点を有している。 Conventionally, methods such as the tie-dipping method, the felt method, and the spray method have been used to apply this resin composition, but each method has its advantages and disadvantages. This method is superior and is the most commonly used. However, with the die coating method, it is impossible to form a coating film with a thickness of 2 to 3 μm or less.
The spray method has the disadvantage that it is difficult to obtain a uniform coating on the optical fiber, that is, it is difficult to control the coating thickness of the resin composition.
次に従来のスプレー方式を用いる装置について
説明する。 Next, an apparatus using a conventional spray method will be explained.
第２図において１は光フアイバ母材であり、母
材１より溶融紡糸した光フアイバ２は垂直下方向
に繰出さる。この間噴霧器３により、樹脂組成物
を光フアイバ１に塗布する。噴霧器３は、例えば
オリンパス製HP―PC102型等のスプレーガンが
使用される。 In FIG. 2, reference numeral 1 denotes an optical fiber base material, and an optical fiber 2 melt-spun from the base material 1 is drawn out vertically downward. During this time, the resin composition is applied to the optical fiber 1 by the sprayer 3. As the sprayer 3, for example, a spray gun such as HP-PC102 manufactured by Olympus is used.
この場合、噴霧器３より噴射された樹脂組成物
を回収および周辺付帯設備への付着防止のため、
通常光フアイバの通過孔以外は密閉された噴霧塗
布容器４で噴霧器３による塗布が行われる。なお
図において６は樹脂組成物供給装置である。 In this case, in order to recover the resin composition sprayed from the sprayer 3 and prevent it from adhering to surrounding equipment,
Usually, coating is performed by a sprayer 3 in a spray coating container 4 which is sealed except for the optical fiber passage hole. In addition, in the figure, 6 is a resin composition supply device.
（解決しようとする課題）
このような噴霧塗布容器４を使用した場合、こ
の内部は密閉状態に等しく、噴霧器３によつて、
0.1Kg/cm2〜５Kg/cm2の圧力で樹脂組成物を噴射す
るため、噴霧塗布容器４内で乱気流が発生し、良
好な噴射気流が得られず、光フアイバの線振れが
発生すると共に、均一に樹脂組成物が塗布できな
いという問題がある。(Problem to be Solved) When such a spray application container 4 is used, the inside is equivalent to a sealed state, and the sprayer 3
Since the resin composition is sprayed at a pressure of 0.1Kg/cm 2 to 5Kg/cm 2 , turbulence occurs in the spray coating container 4, making it impossible to obtain a good sprayed airflow, causing line deflection of the optical fiber, and However, there is a problem that the resin composition cannot be applied uniformly.
（課題を解決するための手段）
上述のように、スプレー方式は均一に塗布が難
しいが、２〜3μｍ以下の厚みに塗布できるとい
う長所があり、本発明は従来の問題を解消して均
一な塗布ができる樹脂被覆装置を提供するもの
で、その特徴は、その内部を光伝送用ガラスフア
イバが通過する樹脂組成物の噴霧塗布容器が、内
箱と外箱の二重箱より成り、内箱には光伝送用ガ
ラスフアイバに対して噴霧器の反対側に排気孔を
設け、噴霧された樹脂組成物の噴射気流を排気す
ると共に、内箱と外箱の間の空間から被覆に用い
られなかつた樹脂沫を回収することにある。(Means for Solving the Problem) As mentioned above, it is difficult to apply uniformly with the spray method, but it has the advantage of being able to apply to a thickness of 2 to 3 μm or less, and the present invention solves the conventional problems and can apply uniformly. The present invention provides a resin coating device capable of coating resin compositions, and its features include a resin composition spray coating container through which an optical transmission glass fiber passes, which consists of a double box consisting of an inner box and an outer box; An exhaust hole is provided on the opposite side of the atomizer to the optical transmission glass fiber, and the jet airflow of the sprayed resin composition is exhausted, and the resin not used for coating is removed from the space between the inner box and the outer box. The purpose is to collect droplets.
第１図は本発明の樹脂被覆装置の具体例の説明
図である。 FIG. 1 is an explanatory diagram of a specific example of the resin coating apparatus of the present invention.
図面に示すように、樹脂組成物の噴霧塗布容器
７は内箱８と外箱９の二重箱よりなり、その上下
面中心に、溶融して紡糸された光フアイバ２を垂
直下方向に通す光フアイバ挿通孔１０，１１があ
けられている。 As shown in the drawing, the resin composition spray coating container 7 is made up of a double box consisting of an inner box 8 and an outer box 9, and a light beam passing vertically downward through a melted and spun optical fiber 2 is placed in the center of the upper and lower surfaces of the container 7. Fiber insertion holes 10 and 11 are bored.
又、横方向に内箱８と外箱９に跨つて噴霧器３
の噴射孔１２が形成され、これより噴霧器３のノ
ズルで樹脂組成物を噴射した際、ノズルよりの噴
射気流は前記光フアイバ挿通孔１０，１１を結ぶ
軸線と交叉して内箱８の反対側の横壁に達する
が、この噴射気流の達する位置に排気孔１３が形
成される。従つて樹脂組成物の噴射気流はこの排
気孔１３より、内箱８と外箱９の間の空間に至
り、被覆に用いられなかつた樹脂沫が回収される
ことになる。 Also, the sprayer 3 is installed horizontally across the inner box 8 and outer box 9.
An injection hole 12 is formed, and when the resin composition is injected through the nozzle of the sprayer 3, the airflow from the nozzle crosses the axis connecting the optical fiber insertion holes 10 and 11 to the opposite side of the inner box 8. An exhaust hole 13 is formed at the position where this jet airflow reaches the side wall of the jet. Therefore, the jet stream of the resin composition reaches the space between the inner box 8 and the outer box 9 through the exhaust hole 13, and the resin droplets not used for coating are collected.
（作 用）
上述の構成を有する本発明の樹脂被覆装置にお
いての、前記噴霧塗布容器７の上下の光フアイバ
挿通孔１０，１１に溶融紡糸した光フアイバ２を
通し、連続的に紡糸しながら、下方より繰出す
際、光フアイバ２に対し、横方向の噴霧器３のノ
ズルより噴射した樹脂組成物の噴射気流が当つ
て、その表面に樹脂組成物を塗布し、光フアイバ
２を通過した樹脂組成物の噴射気流は排気孔１３
を通過し、外箱９の外壁に当りながら分散し、被
覆に用いられなかつた樹脂沫は内箱８と外箱９の
間の空間で回収されることになる。(Function) In the resin coating apparatus of the present invention having the above-described configuration, the melt-spun optical fiber 2 is passed through the upper and lower optical fiber insertion holes 10 and 11 of the spray coating container 7, and while continuously spinning, When the optical fiber 2 is fed out from below, the resin composition is sprayed from the nozzle of the horizontal sprayer 3 onto the optical fiber 2, and the resin composition is applied to the surface of the optical fiber 2. The jet airflow of objects is the exhaust hole 13
Resin droplets that are not used for coating and are dispersed while hitting the outer wall of the outer box 9 are collected in the space between the inner box 8 and the outer box 9.
（発明の効果）
以上説明したように、本発明の樹脂被覆装置に
よれば、噴霧塗布容器を二重構造とし、内箱の光
フアイバに対して反対側に排気孔を設けているの
で、樹脂組成物の噴射気流が上記噴霧塗布容器内
部において乱気流を作ることは少なく、安定した
噴射気流が得られ、光フアイバの線振れを防止
し、通過する光フアイバに均一な樹脂組成物によ
る被覆が得られる。この結果、厚さ２〜3μｍ以
下で安定した被覆形成が可能となつた。(Effects of the Invention) As explained above, according to the resin coating device of the present invention, the spray application container has a double structure and the exhaust hole is provided on the side opposite to the optical fiber of the inner box, so that the resin coating device The jet airflow of the composition hardly creates turbulence inside the spray coating container, and a stable jet airflow can be obtained, preventing line deflection of the optical fiber, and making it possible to coat the passing optical fiber with a uniform resin composition. It will be done. As a result, it became possible to form a stable coating with a thickness of 2 to 3 μm or less.
又噴霧塗布容器を二重構造とすることにより、
排気孔を通過した噴射気流の被覆に用いられなか
つた樹脂沫は、内箱と外箱の間の空間において回
収可能となる。 In addition, by making the spray application container double-structured,
Resin droplets that are not used to cover the jet airflow that has passed through the exhaust hole can be collected in the space between the inner box and the outer box.
第１図は本発明に係る樹脂被覆装置の具体例の
説明図である。第２図は従来のスプレー方式によ
る樹脂被覆装置の説明図である。
１……光フアイバ母材、２……光フアイバ、３
……噴霧器、６……樹脂組成物供給装置、７……
樹脂組成物の噴霧塗布容器、８……内箱、９……
外箱、１０，１１……光フアイバ挿通孔、１２…
…噴射孔、１３……排気孔。
FIG. 1 is an explanatory diagram of a specific example of the resin coating apparatus according to the present invention. FIG. 2 is an explanatory diagram of a conventional spray-type resin coating apparatus. 1... Optical fiber base material, 2... Optical fiber, 3
...Sprayer, 6...Resin composition supply device, 7...
Spray coating container for resin composition, 8... Inner box, 9...
Outer box, 10, 11...Optical fiber insertion hole, 12...
...Injection hole, 13...Exhaust hole.
Claims (1)
組成物を噴霧器を用いて光伝送用ガラスフアイバ
表面に塗布する光伝送用ガラスフアイバの樹脂被
覆装置において、その内部を光伝送用ガラスフア
イバが通過する樹脂組成物の噴霧塗布容器が内箱
と外箱の二重箱より成り、内箱には光伝送用ガラ
スフアイバに対して噴霧器の反対側に排気孔を設
け、噴霧された樹脂組成物の噴射気流を排気する
と共に、内箱と外箱の間の空間から被覆に用いら
れなかつた樹脂沫を回収することを特徴とする光
伝送用ガラスフアイバの樹脂被覆装置。1 After spinning the optical transmission glass fiber base material, a resin coating device for optical transmission glass fiber is used, in which a resin composition is applied to the surface of the optical transmission glass fiber using a sprayer, through which the optical transmission glass fiber passes. The container for spraying the resin composition is made up of a double box consisting of an inner box and an outer box, and the inner box is provided with an exhaust hole on the opposite side of the atomizer to the optical transmission glass fiber, so that the sprayed resin composition can be sprayed. A resin coating device for a glass fiber for optical transmission, characterized in that it exhausts airflow and collects resin droplets not used for coating from a space between an inner box and an outer box.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154335A JPS5945938A (en) | 1982-09-03 | 1982-09-03 | Resin coating of light-transmission glass fiber |
| EP83108299A EP0105172B1 (en) | 1982-09-03 | 1983-08-23 | Apparatus for coating optical transmission glass fibers |
| DE8383108299T DE3380845D1 (en) | 1982-09-03 | 1983-08-23 | Apparatus for coating optical transmission glass fibers |
| CA000435833A CA1204937A (en) | 1982-09-03 | 1983-08-31 | Method for coating optical transmission glass fibers |
| US06/529,779 US4512281A (en) | 1982-09-03 | 1983-09-06 | Method for coating optical transmission glass fibers |
| US06/691,791 US4539219A (en) | 1982-09-03 | 1985-01-16 | Method for coating optical transmission glass fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154335A JPS5945938A (en) | 1982-09-03 | 1982-09-03 | Resin coating of light-transmission glass fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5945938A JPS5945938A (en) | 1984-03-15 |
| JPS6366782B2 true JPS6366782B2 (en) | 1988-12-22 |
Family
ID=15581898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57154335A Granted JPS5945938A (en) | 1982-09-03 | 1982-09-03 | Resin coating of light-transmission glass fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5945938A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622645A (en) * | 1979-08-01 | 1981-03-03 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of optical fiber |
-
1982
- 1982-09-03 JP JP57154335A patent/JPS5945938A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5945938A (en) | 1984-03-15 |
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