JPH04224144A - Manufacture of hermetically-coated fiber and its device thereof - Google Patents
Manufacture of hermetically-coated fiber and its device thereofInfo
- Publication number
- JPH04224144A JPH04224144A JP2413913A JP41391390A JPH04224144A JP H04224144 A JPH04224144 A JP H04224144A JP 2413913 A JP2413913 A JP 2413913A JP 41391390 A JP41391390 A JP 41391390A JP H04224144 A JPH04224144 A JP H04224144A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- coating
- hermetic
- fiber
- 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.)
- Withdrawn
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 76
- 229920005989 resin Polymers 0.000 claims abstract description 76
- 239000011248 coating agent Substances 0.000 claims abstract description 52
- 238000000576 coating method Methods 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 238000009987 spinning Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 32
- 239000007789 gas Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はハーメチックコートファ
イバの製造方法及びその装置に関し、特にハーメチック
コート後の樹脂被覆を良好に施すように工夫したもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for producing a hermetic coated fiber, and is particularly designed to provide a good resin coating after the hermetic coating.
【０００２】0002
【従来の技術】従来の光ファイバの製造装置の一例を図
５に示す。同図に示すように、線引き用加熱炉１０にお
いて光ファイバ用母材１１から線引きされた裸ファイバ
１２は、線径測定装置１３および冷却装置１４を経て、
樹脂ダイス１５と硬化炉１６とを有する第１の樹脂塗布
手段１７及び樹脂ダイス１８と硬化炉１９とを有する第
２の樹脂塗布手段２０に送られ、２層の樹脂コートが施
された樹脂コート光ファイバ２１となる。この樹脂コー
ト光ファイバ２１はキャプスタン２２を経由してそのま
ま巻取り機（図示せず）へ送られ巻き取られる。2. Description of the Related Art An example of a conventional optical fiber manufacturing apparatus is shown in FIG. As shown in the figure, a bare fiber 12 drawn from an optical fiber base material 11 in a drawing heating furnace 10 passes through a wire diameter measuring device 13 and a cooling device 14.
The resin coat is sent to a first resin coating means 17 having a resin die 15 and a curing furnace 16, and a second resin coating means 20 having a resin die 18 and a curing furnace 19, where a two-layer resin coat is applied. This becomes the optical fiber 21. This resin-coated optical fiber 21 is directly sent to a winder (not shown) via a capstan 22 and wound up.
【０００３】上記装置によれば、線引用加熱炉（「線引
炉」という）１０で約２０００℃に加熱紡糸後の裸ファ
イバ１２は冷却装置１４内を通過することにより、一層
目の樹脂塗布に適する温度（７５℃以下）まで冷却され
樹脂塗布が適正に行われている。そして、一層目の樹脂
塗布後の光ファイバは充分に冷めているので、高速線引
き速度であっても引き続いて二層目の樹脂塗布を支障な
く行っている。According to the above-mentioned apparatus, the bare fiber 12 heated and spun to about 2000° C. in a drawing heating furnace (referred to as a "drawing furnace") 10 passes through a cooling device 14 to coat the first layer of resin. The resin was cooled to a temperature suitable for this (75°C or less) and the resin coating was performed properly. Since the optical fiber after the first resin coating is sufficiently cooled, the second resin coating can be subsequently applied without any problem even at a high speed of drawing.
【０００４】上記装置において、紡糸後の裸ファイバ１
２にカーボン被覆を施す場合には、カーボンコーティン
グ用の原料ガスを反応させるハーメチックコート装置内
へ導入し、熱ＣＶＤ法によりハーメチックコートを行っ
た後、冷却装置１４で冷却し樹脂ダイス１５へ導き樹脂
塗布を行って樹脂被覆をしている。[0004] In the above device, the bare fiber 1 after spinning is
When applying carbon coating to 2, the raw material gas for carbon coating is introduced into a hermetic coating device where it reacts, hermetic coating is performed by a thermal CVD method, and then the resin is cooled by a cooling device 14 and guided to a resin die 15. It is coated with resin.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前述し
たカーボンコーティングを行うハーメチックコート装置
を取付けて線引きを行っていくと、樹脂塗布の点で偏肉
や外径不良等の塗布不良を生じるという問題がある。[Problems to be Solved by the Invention] However, when the above-mentioned hermetic coating device that performs carbon coating is installed and wire is drawn, there is a problem that coating defects such as uneven thickness and defective outer diameter occur in resin coating. be.
【０００６】本発明は上記事情に鑑み、ハーメチックコ
ートを施した場合でも樹脂塗布不良のないハーメチック
コートファイバの製造方法及びその装置を提供すること
を目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, it is an object of the present invention to provide a method and apparatus for producing a hermetic coated fiber that is free from defects in resin coating even when a hermetic coat is applied.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成する本発
明に係るハーメチックコートファイバの製造方法は、紡
糸直後のガラスファイバを、反応ガス雰囲気中に導入し
、該ガラスファイバの表面にカーボン膜を形成し、次い
で樹脂ダイス及び硬化炉からなる二以上の樹脂塗布手段
によって樹脂を二層以上被覆してなるハーメチックコー
トファイバの製造方法において、第１層目以降の樹脂塗
布前に樹脂硬化直後のガラスファイバを、Ｈｅを含む雰
囲気ガスを用いて冷却することを特徴とする。[Means for Solving the Problems] A method for manufacturing a hermetic coated fiber according to the present invention that achieves the above object includes introducing a glass fiber immediately after spinning into a reaction gas atmosphere, and coating the surface of the glass fiber with a carbon film. In a method for manufacturing a hermetic coated fiber, the fiber is coated with two or more layers of resin using two or more resin coating means consisting of a resin die and a curing furnace. The method is characterized in that the fiber is cooled using an atmospheric gas containing He.
【０００８】また、一方の本発明に係るハーメチックコ
ートファイバの製造装置の構成は、ガラスファイバを紡
糸する線引炉と、該ガラスファイバの表面にカーボン膜
を形成するハーメチック装置と、カーボン膜被覆後のガ
ラスファイバを冷却する冷却装置と、カーボン膜の表面
に樹脂被覆を施す樹脂ダイス及び硬化炉からなる二以上
の樹脂塗布手段と、第１層目以降の硬化炉と該硬化炉に
続いて配される樹脂ダイスとの間に配されるＨｅを含む
雰囲気ガスを用いた冷却手段とを具備してなることを特
徴とする。[0008] On the other hand, the hermetic coated fiber manufacturing apparatus according to the present invention has a structure including a drawing furnace for spinning glass fiber, a hermetic device for forming a carbon film on the surface of the glass fiber, and a drawing furnace for forming a carbon film on the surface of the glass fiber. a cooling device for cooling the glass fiber, two or more resin coating means consisting of a resin die and a curing furnace for applying resin coating to the surface of the carbon film, a curing furnace for the first layer and after, and a curing furnace disposed subsequent to the curing furnace. and a cooling means using an atmospheric gas containing He, which is disposed between the resin die and the resin die.
【０００９】[0009]
【作用】前記構成のハーメチックコートファイバの製造
装置を用いてハーメチックコートファイバを製造するに
際し、ハーメチック層の表面に一層目の樹脂塗布及び硬
化を行った後、二層目の樹脂塗布を行う樹脂ダイスに導
入する前に、Ｈｅを含む雰囲気ガスを用いて冷却する。
これにより、一層目の樹脂硬化の際に該硬化のために放
射された放射エネルギーによって温度上昇したハーメチ
ック層の冷却が行なわれ、二層目の樹脂塗布の最適温度
となり二層目の樹脂塗布が良好に行われる。[Operation] When manufacturing a hermetic coated fiber using the hermetic coated fiber manufacturing apparatus configured as described above, a resin die is used to apply the second layer of resin after coating and curing the first layer of resin on the surface of the hermetic layer. It is cooled using an atmospheric gas containing He before being introduced into the atmosphere. As a result, the hermetic layer, whose temperature rose due to the radiant energy radiated for curing during the first layer resin curing, is cooled down, and the temperature reaches the optimum temperature for the second layer resin application. Well done.
【００１０】0010
【実施例】以下、本発明の好適な実施例を図面を参照し
て説明する。図１は本発明の一実施例に係るハーメチッ
クコートファイバの製造装置の概略図である。なお、前
述した従来の製造装置と同一の機能を有する部材には同
一の符号を付して重複する説明は省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a hermetic coated fiber manufacturing apparatus according to an embodiment of the present invention. Note that members having the same functions as those of the conventional manufacturing apparatus described above are given the same reference numerals, and redundant explanations will be omitted.
【００１１】同図に示すように、本ハーメチックコート
ファイバの製造装置は、裸ファイバ１２を紡糸する線引
炉１０と、該裸ファイバ１２の表面にカーボン膜を被覆
するハーメチックコート装置１００と、カーボン膜被覆
後のガラスファイバを冷却する冷却装置１４と、カーボ
ン膜の表面に樹脂被覆を施す樹脂ダイス１５及び硬化炉
１６からなる第１の樹脂塗布手段１７と、該硬化炉１６
で熱硬化した第１層樹脂被覆ファイバの表面を冷却する
冷却手段１１０と、第２層目の樹脂被覆を施す樹脂ダイ
ス１８及び硬化炉１９からなる第２の樹脂塗布手段２０
とを具備するものである。As shown in the figure, the hermetic coated fiber manufacturing apparatus includes a drawing furnace 10 for spinning bare fibers 12, a hermetic coating apparatus 100 for coating the surface of the bare fibers 12 with a carbon film, and a carbon A first resin coating means 17 consisting of a cooling device 14 that cools the glass fiber after film coating, a resin die 15 that applies resin coating to the surface of the carbon film, and a curing furnace 16, and the curing furnace 16.
a cooling means 110 for cooling the surface of the first layer resin-coated fiber that has been thermally cured; and a second resin coating means 20 comprising a resin die 18 and a curing furnace 19 for applying the second layer resin coating.
It is equipped with the following.
【００１２】ここで上記ハーメチックコート装置１００
は、原料ガスを反応させファイバ表面にカーボン（Ｃ）
のハーメチックコートを施す反応容器１０１と、該反応
容器１０１へ原料（ＣＨ４ ， Ｃ２ＨＣｌ３等）１０
２を供給する原料供給手段１０３と、反応によって発生
したスス等の排出ガス１０４処理する排ガス処理手段１
０５と、カーボン膜被覆が正常であるか監視する冷却装
置１４の後流側に配される膜厚モニタ１０６とを具備し
ており、高精度の原料供給，安定した反応，無公害化及
び品質保証を行っている。尚、膜厚モニタ１０６の後流
側にはファイバの線径を測定する線径測定装置１３が従
来と同様に配されており、線径の監視を行った後、樹脂
塗布系へファイバを送っている。Here, the hermetic coating device 100
In this method, carbon (C) is formed on the fiber surface by reacting the raw material gas.
A reaction vessel 101 to which a hermetic coating is applied, and a raw material (CH4, C2HCl3, etc.) 10 to the reaction vessel 101.
a raw material supply means 103 for supplying 2, and an exhaust gas treatment means 1 for treating exhaust gas 104 such as soot generated by the reaction.
05 and a film thickness monitor 106 placed on the downstream side of the cooling device 14 to monitor whether the carbon film coating is normal or not. We provide a guarantee. Note that a wire diameter measuring device 13 for measuring the wire diameter of the fiber is disposed downstream of the film thickness monitor 106, as in the past, and after monitoring the wire diameter, the fiber is sent to the resin coating system. ing.
【００１３】上記ハーメチックコートファイバの製造装
置によれば、第１層の樹脂被覆手段１７の硬化炉１６と
第２層の樹脂被覆手段２０の樹脂ダイス１８との間に強
制冷却する冷却手段１１０を設けてなるので、ハーメチ
ックコート層であるカーボン被膜が硬化炉１６の例えば
ＵＶ光等の放射エネルギーを吸収し、ファイバ温度が上
昇しても塗布に適した温度まで充分に冷却でき、第２層
目の樹脂被覆を良好に施すことができる。上記冷却手段
１１０としてはＨｅ， Ａｒガス等の不活性ガスを適宜
配合したものを導入することによって行えばよい。According to the hermetic coated fiber manufacturing apparatus, the cooling means 110 for forced cooling is provided between the curing furnace 16 of the first layer resin coating means 17 and the resin die 18 of the second layer resin coating means 20. Therefore, the carbon coating, which is a hermetic coating layer, absorbs radiation energy such as UV light from the curing furnace 16, and even if the fiber temperature rises, it can be sufficiently cooled to a temperature suitable for coating, and the second layer A good resin coating can be applied. As the cooling means 110, an appropriate mixture of inert gas such as He or Ar gas may be introduced.
【００１４】このハーメチックコートファイバ製造よる
樹脂被覆における特有の温度変化現象を、図２及び図３
を参照して次に説明する。尚、図２はハーメチックコー
ト時の線引炉出口から第１層目の樹脂ダイス導入前まで
のファイバの温度変化図、及び図３は第１層目の硬化炉
出口から第２層目の樹脂ダイス導入前までのファイバの
温度変化図である。[0014] The characteristic temperature change phenomenon in the resin coating produced by manufacturing this hermetic coated fiber is shown in Figs. 2 and 3.
This will be explained next with reference to . Figure 2 shows the temperature change diagram of the fiber from the exit of the drawing furnace during hermetic coating to before introduction of the resin die for the first layer, and Figure 3 shows the temperature change of the fiber from the exit of the curing furnace for the first layer to the resin for the second layer. It is a temperature change diagram of the fiber before introduction of the die.
【００１５】図２に示すように、線引炉１０出口から第
１層目の樹脂ダイス１５の導入前までは、ハーメチック
コートの有無によって大きな温度変化は見られない。As shown in FIG. 2, from the exit of the drawing furnace 10 until before the introduction of the first layer resin die 15, no significant temperature change is observed depending on the presence or absence of the hermetic coat.
【００１６】一方、図３に示すように、第１層目の硬化
炉１６の出口から第２層目の樹脂ダイス１８の導入前ま
でにおいては、ハーメチックコートを施した場合では、
第１層目の硬化炉１６の出口近傍で１２０℃と通常のハ
ーメチックコートを施さないものよりも著しく高かった
。このままの温度では自然冷却長が約１．２ｍと必要と
なるので、冷却手段１１０を設けて強制的に冷却するこ
とがハーメチックコートの場合必要となる。On the other hand, as shown in FIG. 3, in the case where a hermetic coating is applied from the exit of the curing furnace 16 for the first layer to before the introduction of the resin die 18 for the second layer,
The temperature near the exit of the curing furnace 16 for the first layer was 120° C., which was significantly higher than that of a conventional hermetic coating. If the temperature remains as it is, a natural cooling length of about 1.2 m is required, so in the case of a hermetic coat, it is necessary to provide a cooling means 110 for forced cooling.
【００１７】下記表１には、ハーメチックコートの有無
及び冷却手段１１０の有無によって第２層目のの樹脂コ
ートが変化する結果を示す。なお、偏肉の規格は７０％
、外径の規格は２４０μｍである。Table 1 below shows the results of changes in the second layer resin coat depending on the presence or absence of the hermetic coat and the presence or absence of the cooling means 110. The standard for uneven thickness is 70%.
, the outer diameter standard is 240 μm.
【００１８】[0018]
【表１】[Table 1]
【００１９】上述したように第１層目樹脂塗布後のハー
メチックコートファイバにおける温度上昇はハーメチッ
クコートであるカーボンが黒体に近いため、第１層目に
おける硬化炉１６による放射エネルギーを吸収し温度が
コート無の場合と比べて上昇したものである。よって本
発明における上昇コートにおける冷却は、第１層目の硬
化炉１６の例えばＵＶ光等のエネルギーの吸収の結果高
温度となったファイバの温度を強制的に冷却するように
図っており、樹脂被覆の好適な温度まで下げている。ハ
ーメチックコートファイバ製造における特有の必要技術
となり、高品質のファイバを安定して提供することとな
る。尚、樹脂コートが２層以上とする場合には、その度
に冷却手段１１０を設けて硬化炉による放射エネルギー
に基因する温度上昇を低下させるようにすればよい。こ
の結果を表２に示す。As mentioned above, the temperature rise in the hermetic coated fiber after the first layer of resin is applied is caused by the fact that carbon, which is the hermetic coat, is close to a black body, and absorbs the radiant energy from the curing furnace 16 in the first layer, causing the temperature to rise. This is an increase compared to the case without a coat. Therefore, the cooling in the rising coat in the present invention is intended to forcibly cool down the temperature of the fiber that has become high as a result of absorption of energy such as UV light in the first layer curing furnace 16, and the resin The temperature is lowered to the desired temperature for the coating. This is a unique and necessary technology in the production of hermetic coated fibers, and enables the stable provision of high-quality fibers. Incidentally, when the resin coat has two or more layers, cooling means 110 may be provided each time to reduce the temperature rise caused by radiant energy from the curing furnace. The results are shown in Table 2.
【００２０】[0020]
【表２】[Table 2]
【００２１】次に、図４を参照して本発明の他の一実施
例について説明する。なお、前述した図１に示す製造装
置と同一の機能を有する部材には同一の符号を付して重
複する説明は省略する。本実施例に係るハーメチックコ
ートファイバの製造装置は高速線速で線引きしてハーメ
チックコートを施す場合であるが、図１に示す製造装置
と異る点は、図１に示す冷却装置１４の冷却能力を向上
させていることと、樹脂ダイス１５，１８に各々続いて
配される硬化炉１６，１９を各々２基設けていることで
ある。尚図４の実施例では線速５００ｍ／ｍｉｎ 以上
の高線速で線引きしても第２層目の被覆は良好であった
。Next, another embodiment of the present invention will be described with reference to FIG. Note that members having the same functions as those of the manufacturing apparatus shown in FIG. 1 described above are given the same reference numerals, and redundant explanations will be omitted. The hermetic coated fiber manufacturing apparatus according to this embodiment is for drawing at a high speed and applying a hermetic coat, but the difference from the manufacturing apparatus shown in FIG. 1 is the cooling capacity of the cooling device 14 shown in FIG. and that two curing furnaces 16 and 19 are provided respectively following the resin dies 15 and 18. In the example shown in FIG. 4, the coating of the second layer was good even when drawn at a high drawing speed of 500 m/min or more.
【００２２】ここで、冷却装置１４についての冷却能力
の向上については、線速度の高速化に伴い冷却装置１４
内の滞在時間が短縮されるので、長さや冷却効率の向上
を図ることを目的としている。また、一方、線速度を高
線速とするため硬化が十分でなくなることを防止して硬
化炉を各々２基づつ設置することに伴い、冷却手段１１
０を設け該冷却手段１１０の冷却長を長くすることによ
って、第２層目の樹脂被覆の安定した高品質を得るよう
にしている。Here, regarding the improvement of the cooling capacity of the cooling device 14, as the linear velocity increases, the cooling ability of the cooling device 14 is improved.
The aim is to improve length and cooling efficiency by reducing the amount of time spent inside the system. On the other hand, since the linear velocity is set to a high linear velocity, two curing furnaces are installed each to prevent insufficient curing.
By providing 0 and increasing the cooling length of the cooling means 110, stable high quality of the second layer resin coating can be obtained.
【００２３】[0023]
【発明の効果】以上実施例と共に説明したように、本発
明によればハーメチックコート後のファイバに樹脂被覆
を施す際に第１層目以降の硬化炉と該硬化炉に続いて配
される樹脂ダイスとの間にＨｅを含む雰囲気ガスを用い
た冷却手段を配してなるので、ハーメチックコートのカ
ーボンが硬化炉の放射エネルギーを受けてファイバの温
度が上昇しても、第２層目の塗布に適した温度まで充分
冷却でき、第２層目以降の樹脂被覆も良好に行うことが
できる。Effects of the Invention As explained above in conjunction with the embodiments, according to the present invention, when applying a resin coating to a fiber after hermetic coating, the curing furnace for the first and subsequent layers and the resin disposed subsequent to the curing furnace are used. Since a cooling means using atmospheric gas containing He is arranged between the die and the die, even if the carbon of the hermetic coat receives radiation energy from the curing furnace and the temperature of the fiber increases, the second layer cannot be applied. It can be sufficiently cooled to a temperature suitable for this, and the second and subsequent layers can be well coated with resin.
【図１】本発明の一実施例に係るハーメチックコートフ
ァイバの製造装置の概略図である。FIG. 1 is a schematic diagram of a hermetic coat fiber manufacturing apparatus according to an embodiment of the present invention.
【図２】コーティングによる温度変化図である。FIG. 2 is a diagram of temperature changes due to coating.
【図３】加熱炉による温度変化図である。FIG. 3 is a temperature change chart due to the heating furnace.
【図４】本発明の他の一実施例に係るハーメチックコー
トファイバの製造装置の概略図である。FIG. 4 is a schematic diagram of a hermetic coat fiber manufacturing apparatus according to another embodiment of the present invention.
【図５】従来技術のハーメチックコートファイバの製造
装置の概略図である。FIG. 5 is a schematic diagram of a conventional hermetic coated fiber manufacturing apparatus.
１０ 線引用加熱炉 １１ 光ファイバ用母材 １２ 裸ファイバ １３ 線径測定装置 １４ 冷却装置 １５ 樹脂ダイス １６ 硬化炉 １７ 第１の樹脂塗布手段 １８ 樹脂ダイス １９ 硬化炉 ２０ 第２の樹脂塗布手段 １００ ハーメチックコート装置 １０１ 反応容器 １１０ 冷却手段 10 Line quotation heating furnace 11 Base material for optical fiber 12 Bare fiber 13 Wire diameter measuring device 14 Cooling device 15 Resin dice 16 Hardening furnace 17 First resin application means 18 Resin dice 19 Hardening furnace 20 Second resin application means 100 Hermetic coating equipment 101 Reaction container 110 Cooling means
Claims (2)
ス雰囲気中に導入し、該ガラスファイバの表面にカーボ
ン膜を形成し、次いで樹脂ダイス及び硬化炉からなる二
以上の樹脂塗布手段によって樹脂を二層以上被覆してな
るハーメチックコートファイバの製造方法において、第
１層目以降の樹脂塗布前に樹脂硬化直後のガラスファイ
バを、Ｈｅを含む雰囲気ガスを用いて冷却することを特
徴とするハーメチックコートファイバの製造方法。Claim 1: A glass fiber immediately after spinning is introduced into a reactive gas atmosphere, a carbon film is formed on the surface of the glass fiber, and then a resin is applied by two or more resin coating means consisting of a resin die and a curing furnace. A method for manufacturing a hermetic coated fiber coated with more than one layer, characterized in that the glass fiber immediately after the resin is cured is cooled using an atmospheric gas containing He before applying the resin for the first layer and thereafter. manufacturing method.
該ガラスファイバの表面にカーボン膜を形成するハーメ
チックコート装置と、カーボン膜被覆後のガラスファイ
バを冷却する冷却装置と、カーボン膜の表面に樹脂被覆
を施す樹脂ダイス及び硬化炉からなる二以上の樹脂塗布
手段と、第１層目以降の硬化炉と該硬化炉に続いて配さ
れる樹脂ダイスとの間に配されるＨｅを含む雰囲気ガス
を用いた冷却手段とを具備してなることを特徴とするハ
ーメチックコートファイバの製造装置。[Claim 2] A drawing furnace for spinning glass fiber;
Two or more resins comprising a hermetic coating device that forms a carbon film on the surface of the glass fiber, a cooling device that cools the glass fiber coated with the carbon film, and a resin die and curing furnace that applies resin coating to the surface of the carbon film. It is characterized by comprising a coating means, and a cooling means using an atmospheric gas containing He, which is disposed between a curing furnace for the first and subsequent layers and a resin die disposed subsequent to the curing furnace. Equipment for manufacturing hermetic coated fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413913A JPH04224144A (en) | 1990-12-26 | 1990-12-26 | Manufacture of hermetically-coated fiber and its device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413913A JPH04224144A (en) | 1990-12-26 | 1990-12-26 | Manufacture of hermetically-coated fiber and its device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04224144A true JPH04224144A (en) | 1992-08-13 |
Family
ID=18522463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2413913A Withdrawn JPH04224144A (en) | 1990-12-26 | 1990-12-26 | Manufacture of hermetically-coated fiber and its device thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04224144A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0854121A1 (en) * | 1997-01-15 | 1998-07-22 | Alcatel | Method and apparatus for curing a fiber having at least two fiber coating curing stages separated by a cooling stage |
| US6630209B2 (en) | 1998-09-30 | 2003-10-07 | Minnesota Mining And Manufacturing Company | Method of manufacturing temperature range adjusted coated optical fibers |
| EP1386893A1 (en) * | 2002-08-01 | 2004-02-04 | Alcatel | Apparatus and method for curing a fiber, having at least two fiber coating curing stages |
| JP2013048214A (en) * | 2011-07-27 | 2013-03-07 | Mitsubishi Cable Ind Ltd | Double clad optical fiber, manufacturing method of double clad optical fiber, and manufacturing method of double clad optical fiber core wire |
-
1990
- 1990-12-26 JP JP2413913A patent/JPH04224144A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0854121A1 (en) * | 1997-01-15 | 1998-07-22 | Alcatel | Method and apparatus for curing a fiber having at least two fiber coating curing stages separated by a cooling stage |
| US7322122B2 (en) | 1997-01-15 | 2008-01-29 | Draka Comteq B.V. | Method and apparatus for curing a fiber having at least two fiber coating curing stages |
| US6630209B2 (en) | 1998-09-30 | 2003-10-07 | Minnesota Mining And Manufacturing Company | Method of manufacturing temperature range adjusted coated optical fibers |
| US6643440B2 (en) | 2001-02-09 | 2003-11-04 | 3M Innovative Properties Company | Temperature range adjusted coated optical fibers |
| EP1386893A1 (en) * | 2002-08-01 | 2004-02-04 | Alcatel | Apparatus and method for curing a fiber, having at least two fiber coating curing stages |
| JP2013048214A (en) * | 2011-07-27 | 2013-03-07 | Mitsubishi Cable Ind Ltd | Double clad optical fiber, manufacturing method of double clad optical fiber, and manufacturing method of double clad optical fiber core wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980312 |