JPS63161416A - Optical fiber cable - Google Patents
Optical fiber cableInfo
- Publication number
- JPS63161416A JPS63161416A JP61310227A JP31022786A JPS63161416A JP S63161416 A JPS63161416 A JP S63161416A JP 61310227 A JP61310227 A JP 61310227A JP 31022786 A JP31022786 A JP 31022786A JP S63161416 A JPS63161416 A JP S63161416A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- coating layer
- primary coating
- relative humidity
- fiber cable
- 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
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 239000011247 coating layer Substances 0.000 claims abstract description 49
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920000620 organic polymer Polymers 0.000 claims description 7
- 239000002952 polymeric resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000010453 quartz Substances 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 17
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
皮！上包机凰分！
本発明は、通信用の石英ガラス系光ファイバケーブルに
関し、特に紫外線硬化有機高分子樹脂の１次被覆層を有
する光ファイバケーブルに関する。[Detailed Description of the Invention] Skin! Shang Bao Machine Fan! The present invention relates to a silica glass-based optical fiber cable for communications, and more particularly to an optical fiber cable having a primary coating layer of an ultraviolet-curable organic polymer resin.
ｌ米重及土
石英ガラス系光ファイバの可撓性を改善する目的で有機
高分子からなる１次被覆層を光ファイバの直上に、さら
に光ファイバを外力から保護するために１次被覆層の上
に２次被覆層を介してジャケット層が設けられている。In order to improve the flexibility of quartz glass-based optical fibers, a primary coating layer made of an organic polymer is placed directly above the optical fiber, and in order to protect the optical fiber from external forces, the primary coating layer is A jacket layer is provided thereon via a secondary coating layer.
従来、１次被覆層は熱可塑性有機高分子または熱硬化性
有機高分子にて形成されていたが、紫外線硬化性塗料の
使用が光ファイバケーブルの高能率生産上有利であるこ
とに着目して最近ではそれらの層を紫外線硬化性塗料を
用いて形成する研究が鋭意進められており一部実用もな
されている。Conventionally, the primary coating layer was formed from thermoplastic organic polymers or thermosetting organic polymers, but we focused on the fact that the use of ultraviolet curable paints is advantageous for high-efficiency production of optical fiber cables. Recently, research on forming these layers using ultraviolet curable paints has been actively carried out, and some of them have even been put into practical use.
通常の紫外線硬化性塗料を用い、これを線引きされた石
英ガラス系光ファイバの上に塗布し紫外線照射して形成
した被覆層は、ある局面、たとえば光ファイバケーブル
の接続作業時において必要な光ファイバの剥き出しのた
めの剥離除去のような局面からみれば、能率的なｔＡ離
作業に困難を感じる程に石英ガラス系光ファイバと強固
に密着している。しかしながらこの密着力は、光ファイ
バケーブルにおいて最も重要な局面、即ち光伝送特性上
からみれば必ずしも充分であるとはいい難く、しかも製
造後から経時的に低下する問題がある。A coating layer formed by applying an ordinary ultraviolet curable paint onto a drawn quartz glass optical fiber and irradiating it with ultraviolet rays can be used to form an optical fiber that is necessary in certain situations, such as when connecting optical fiber cables. From the point of view of peeling and removing to expose the fiber, it is so tightly adhered to the silica glass optical fiber that it is difficult to carry out efficient tA separation work. However, this adhesion strength is not necessarily sufficient from the viewpoint of the most important aspect of optical fiber cables, that is, optical transmission characteristics, and there is a problem that the adhesion strength deteriorates over time after manufacture.
この低下は、特に高湿度環境下において著しい。This decrease is particularly significant in a high humidity environment.
石英ガラス系光ファイバに対する１次被覆層の密着力が
不充分である゛と透水防止作用が乏しくなり透水により
光フアイバ表面上にマイクロクランクが成長し易くなっ
て光ファイバが僅かの外力で切断することがある。If the adhesion of the primary coating layer to the silica glass optical fiber is insufficient, the water permeation prevention effect will be poor, and microcranks will easily grow on the optical fiber surface due to water permeation, causing the optical fiber to break with a slight external force. Sometimes.
”を べき−占
上記の事情から、光ファイバケーブル製造直後は勿論の
こと、長期間使用後においても石英ガラス系光ファイバ
に対して優れた密着力を持続する１次被覆層を紫外線硬
化性塗料を用いて実現することが解決を要すべき問題点
としてクローズアップされている。Due to the above-mentioned circumstances, the primary coating layer, which maintains excellent adhesion to silica glass optical fibers not only immediately after manufacturing the optical fiber cable but also after long-term use, should be coated with an ultraviolet curable paint. The realization of this technology using ``is now being highlighted as a problem that needs to be solved.
、 占を ゛するための
上記の問題点を解決することを目的として、本発明は、
石英ガラス系光ファイバの上に紫外線硬化有機高分子樹
脂の１次被覆層を有する光ファイバケーブルにおいて、
該石英ガラス系光ファイバと該１次被覆層との界面の引
抜き力が温度２５℃、相対湿度５０％において０．５ｋ
ｇ／ｃｍ以上であり、かつ温度２５℃、相対湿度９０％
において０．４５ｋｇ／ｃｍ以上であることを特徴とす
る光ファイバケーブルを提供しようとするものである。The present invention aims to solve the above-mentioned problems for fortune-telling.
In an optical fiber cable having a primary coating layer of an ultraviolet curing organic polymer resin on a silica glass optical fiber,
The pulling force at the interface between the silica glass optical fiber and the primary coating layer is 0.5 k at a temperature of 25°C and a relative humidity of 50%.
g/cm or more, and the temperature is 25°C and the relative humidity is 90%.
It is an object of the present invention to provide an optical fiber cable characterized in that its weight is 0.45 kg/cm or more.
重囲」じ８≧迩栗
本発明者らの知見によれは、石英ガラス系光ファイバと
該１次被覆層との界面の引抜き力が上記した常温常温下
において０．５ｋｇ／ｃｍ以上の高密着力を有し、しか
も相対湿度９０％に°おいても、０．４５ｋｇ／ｃｍ以
上もの、すなわち常温常温下での引抜き力の９０％以上
の高密着力を持続する場合には、優れた長期安定性を示
す。According to the findings of the present inventors, the drawing force at the interface between the silica glass optical fiber and the primary coating layer is a high adhesion force of 0.5 kg/cm or more at room temperature as described above. If it has a high adhesion force of 0.45 kg/cm or more even at a relative humidity of 90%, that is, 90% or more of the pull-out force at room temperature, it has excellent long-term stability. shows.
したがって本発明の光ファイバケーブルは、長期間にわ
たって高度の光伝送特性の持続が要求される用途に好適
に使用することができる。Therefore, the optical fiber cable of the present invention can be suitably used in applications that require maintenance of high optical transmission characteristics over a long period of time.
大隻■
第１図および第２図は、いずれも本発明の実施例の断面
図であって、１はステップインデックス形、グレーデド
インデックス形、シングルモード形などの石英ガラス系
光ファイバ、２は光ファイバｌの直上に設けられた１次
被覆層、３は２次被覆層、４はジャケット層である。Figures 1 and 2 are both cross-sectional views of embodiments of the present invention, in which 1 is a silica glass optical fiber such as a step index type, graded index type, or single mode type; 3 is a primary coating layer provided directly above the optical fiber 1, 3 is a secondary coating layer, and 4 is a jacket layer.
１次被覆層２．２次被覆層３、およびジャケット層４の
厚さは、それぞれ１０〜２００μ閑、ｌＯ〜ＳＯＯμ閣
、および０〜３００μ−程度である。The thicknesses of the primary coating layer 2, secondary coating layer 3, and jacket layer 4 are approximately 10 to 200 μm, 10 to 300 μm, and 0 to 300 μm, respectively.
１次被覆層２および２次被覆層３はいずれも紫外線硬化
有機高分子樹脂からなっている。Both the primary coating layer 2 and the secondary coating layer 3 are made of ultraviolet curing organic polymer resin.
就中１次被覆層２は、光ファイバ１との界面の引抜き力
が温度２５℃、相対湿度５０％において０．５ｋｇ／Ｃ
ｍ以上であり、かつ温度２５℃、相対湿度９０％におい
て０．４５ｋｇ／ｃｍ以上であることを要する。常温常
温下および常温高湿下における引抜き力がそれぞれ上記
した値未満である１次被覆層は、密着力不足のために本
発明の課題を解決することができない、１次被覆層２と
して特に好ましいものは、光ファイバ１との界面の引抜
き力が温度２５℃、相対湿度５０％において１．０ｋｇ
／ｃｍ以上であり、かつ温度２５℃、相対湿度９０％に
おいて０．９ｋｇ／ｃｍ以上であるものである。In particular, the primary coating layer 2 has a drawing force of 0.5 kg/C at the interface with the optical fiber 1 at a temperature of 25° C. and a relative humidity of 50%.
m or more, and 0.45 kg/cm or more at a temperature of 25° C. and a relative humidity of 90%. A primary coating layer whose pull-out force at room temperature and at room temperature and high humidity is less than the above-mentioned values is particularly preferred as the primary coating layer 2, which cannot solve the problems of the present invention due to insufficient adhesion. The pulling force at the interface with the optical fiber 1 is 1.0 kg at a temperature of 25°C and a relative humidity of 50%.
/cm or more, and 0.9 kg/cm or more at a temperature of 25° C. and a relative humidity of 90%.
１次被覆層２を形成するのに適した紫外線硬化性樹脂と
しては、たとえば日本合成ゴム社製のデソライト９５０
ＹＯ７５、同１１１００５ 、大日本インキ社製のグラ
ンデインクＰＣ−５６６、横浜ゴム社製のＩＪＤ−０３
１などを例示することができる。１次被覆層は、上記し
た引抜き力を有する他、２５℃におけるヤング率が５〜
１’００ｋｇ／ｃｍ”であることが好ましい。As an ultraviolet curable resin suitable for forming the primary coating layer 2, for example, Desolite 950 manufactured by Nippon Synthetic Rubber Co., Ltd.
YO75, 111005, Grande Ink PC-566 manufactured by Dainippon Ink Co., Ltd., IJD-03 manufactured by Yokohama Rubber Company
1 etc. can be exemplified. In addition to having the above-mentioned pull-out force, the primary coating layer has a Young's modulus of 5 to 5 at 25°C.
1'00 kg/cm'' is preferable.
２次被覆層３は、１次被覆層２と同種の紫外線硬化性樹
脂であっても良く、あるいは従来から光フアイバ用とし
て知られている樹脂であってもよい、そのような紫外線
硬化性樹脂塗料としては、たとえばシリコン樹脂塗料、
ウレタン樹脂塗料、エポキシ樹脂塗料、ウレタンエポキ
シ樹脂塗料、ブタジェン樹脂塗料、エーテル樹脂塗料な
どがあげられる。さらに２次被覆層は２５℃におけるヤ
ング率が１，０００〜２０．０００ｋｇ／ｃｍ富のもの
が好ましい。The secondary coating layer 3 may be the same type of ultraviolet curable resin as the primary coating layer 2, or may be a resin conventionally known for use in optical fibers. Examples of paint include silicone resin paint,
Examples include urethane resin paint, epoxy resin paint, urethane epoxy resin paint, butadiene resin paint, and ether resin paint. Further, the secondary coating layer preferably has a Young's modulus of 1,000 to 20,000 kg/cm at 25°C.
以下、実施例および比較例により本発明を一層詳細に説
明する。Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
実施例Ｉ
ＶＡＤ法で製造したＧＩ形石英ガラス系光ファイバ母材
を線引して得られた直後の直径１２５μ鐘の光ファイバ
の上に紫外線硬化性ウレタン樹脂塗料（日本合成ゴム社
製の商品名デソライ） ９５０Ｙ０７５）を塗布し紫外
線照射して１次被覆層を形成した。さらにその上に紫外
線硬化性ウレタン樹脂塗料（日本合成ゴム社製の商品名
デソライ）Ｒ３０１４Ａ）を塗布し紫外線照射して２次
被覆層を形成した。１次被覆層および２次被覆層各厚さ
は、それぞれ約８０μｍ、約１１０μ−であった。Example I An ultraviolet curable urethane resin paint (a product manufactured by Japan Synthetic Rubber Co., Ltd.) was applied to an optical fiber having a diameter of 125 μm immediately after drawing a GI type quartz glass optical fiber base material manufactured by the VAD method. 950Y075) was applied and irradiated with ultraviolet rays to form a primary coating layer. Furthermore, an ultraviolet curable urethane resin paint (trade name: Desolai R3014A, manufactured by Nippon Gosei Rubber Co., Ltd.) was applied thereon and irradiated with ultraviolet rays to form a secondary coating layer. The thicknesses of the primary coating layer and the secondary coating layer were approximately 80 μm and approximately 110 μm, respectively.
比較例１
実施例１で用いた１次被覆層の紫外線硬化性ウレタン樹
脂塗料に代わって、紫外線硬化性ウレタン樹脂塗料（大
日本インキ社製の商品名ダイキュア７７０５）を用い、
その他は実施例１と同様にして１次被覆層および２次被
覆層の各厚さが、それぞれ約８０μｍ、約１１０μ−の
光ファイバケーブルを得た。Comparative Example 1 Instead of the ultraviolet curable urethane resin paint for the primary coating layer used in Example 1, an ultraviolet curable urethane resin paint (trade name Daicure 7705, manufactured by Dainippon Ink Co., Ltd.) was used,
Otherwise, an optical fiber cable was obtained in the same manner as in Example 1, in which the thicknesses of the primary coating layer and the secondary coating layer were approximately 80 μm and approximately 110 μm, respectively.
実施例２
実施例１で用いた１次被覆層の紫外線硬化性ウレタン樹
脂塗料にかわって紫外線硬化性ウレタン樹脂塗料（大日
本インキ社製の商品名グランデインクＦＣ５６６）を用
い、その他は実施例１と同様にして１次被覆層および２
次被覆層の各厚さが、それぞれ約８０＃■、約１１０μ
輪の光ファイバケーブルを得た。Example 2 An ultraviolet curable urethane resin paint (trade name: Grande Ink FC566, manufactured by Dainippon Ink Co., Ltd.) was used instead of the ultraviolet curable urethane resin paint of the primary coating layer used in Example 1, and the other conditions were as in Example 1. In the same manner as above, the primary coating layer and the secondary coating layer are formed.
The thickness of the next coating layer is approximately 80#■ and approximately 110μ, respectively.
Obtained a ring fiber optic cable.
実施例１〜２、および比較例１で得た各光ファイバケー
ブルについて、１次被覆層と光ファイバとの界面での温
度２５℃、相対湿度５０％および温度２５℃、相対湿度
９０％における各引抜き力並びに光ファイバの機械的強
度変化特性（いずれも１０試料の平均値を示す）を第１
表に示す。For each optical fiber cable obtained in Examples 1 to 2 and Comparative Example 1, the temperature at the interface between the primary coating layer and the optical fiber was 25°C and the relative humidity was 50%, and the temperature at the interface between the primary coating layer and the optical fiber was 25°C and the relative humidity was 90%. The drawing force and the mechanical strength change characteristics of the optical fiber (both show the average value of 10 samples) were
Shown in the table.
なお、上記の各引抜き力、並びに光ファイバの機械的強
度変化特性は、下記の方法により測定し、た。In addition, each of the above-mentioned pulling forces and the mechanical strength change characteristics of the optical fiber were measured by the following method.
引抜きカニ試料光ファイバケーブルを温度２５℃、相対
湿度５０％のデシケータ中および温度２５℃、相対湿度
９０％のデシケータ中にそれぞれ４８時間放置した後、
ストリッパー（２００μ論）で２Ｑｍｍ長の被覆を５０
ｍ／ｍｉｎの速度で引抜く際の最大応力を測定した。After leaving the pulled crab sample optical fiber cable in a desiccator at a temperature of 25°C and a relative humidity of 50% and in a desiccator at a temperature of 25°C and a relative humidity of 90% for 48 hours,
Coat 2Qmm long with a stripper (200μ theory) for 50 minutes.
The maximum stress during pulling out at a speed of m/min was measured.
光ファイバの機械的強度変化特性；試料光ファイバケー
ブルを温度２５℃、相対湿度９０％のデシケータ中に放
置し、その間における光ファイバの引張り強さくスパン
長＝１０ｍ）の経時変化を測定した。Mechanical strength change characteristics of optical fiber: A sample optical fiber cable was left in a desiccator at a temperature of 25°C and a relative humidity of 90%, and the change in tensile strength (span length = 10 m) of the optical fiber over time was measured.
第１表Table 1
第１図および第２図は、いずれも本更明の実施例の断面
図であって、１はステップインデックス形、グレーデド
インデックス形、シングルモード形などの石英ガラス系
光ファイバ、２は光ファイバｌの直上に設けられた１次
被覆層、３は２次被覆層、４はジャケット層である。1 and 2 are cross-sectional views of an embodiment of the present invention, in which 1 is a silica glass optical fiber such as a step index type, graded index type, or single mode type, and 2 is an optical fiber. A primary coating layer is provided directly above the fiber 1, 3 is a secondary coating layer, and 4 is a jacket layer.
Claims (1)
子樹脂の１次被覆層を有する光ファイバケーブルにおい
て、該石英ガラス系光ファイバと該１次被覆層との界面
の引抜き力が温度２５℃、相対湿度５０％において０．
５ｋｇ／ｃｍ以上であり、かつ温度２５℃、相対湿度９
０％において０．４５ｇ／ｃｍ以上であることを特徴と
する光ファイバケーブル。1. In an optical fiber cable having a primary coating layer of an ultraviolet curing organic polymer resin on a silica glass optical fiber, the pulling force at the interface between the silica glass optical fiber and the primary coating layer is at a temperature of 25°C. , 0 at 50% relative humidity.
5 kg/cm or more, and the temperature is 25°C and the relative humidity is 9.
An optical fiber cable having a weight of 0.45 g/cm or more at 0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61310227A JPS63161416A (en) | 1986-12-24 | 1986-12-24 | Optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61310227A JPS63161416A (en) | 1986-12-24 | 1986-12-24 | Optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63161416A true JPS63161416A (en) | 1988-07-05 |
Family
ID=18002720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61310227A Pending JPS63161416A (en) | 1986-12-24 | 1986-12-24 | Optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161416A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005533287A (en) * | 2002-07-18 | 2005-11-04 | ディーエスエム アイピー アセッツ ビー．ブイ． | Coated photonic crystal fiber |
| WO2023210461A1 (en) * | 2022-04-27 | 2023-11-02 | 株式会社フジクラ | Optical fiber wire, and production method for optical fiber ribbon |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5992947A (en) * | 1982-11-20 | 1984-05-29 | Nippon Telegr & Teleph Corp <Ntt> | Coating material for optical glass fiber |
| JPS59111950A (en) * | 1982-12-14 | 1984-06-28 | Nitto Electric Ind Co Ltd | Coating material for optical fiber glass |
-
1986
- 1986-12-24 JP JP61310227A patent/JPS63161416A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5992947A (en) * | 1982-11-20 | 1984-05-29 | Nippon Telegr & Teleph Corp <Ntt> | Coating material for optical glass fiber |
| JPS59111950A (en) * | 1982-12-14 | 1984-06-28 | Nitto Electric Ind Co Ltd | Coating material for optical fiber glass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005533287A (en) * | 2002-07-18 | 2005-11-04 | ディーエスエム アイピー アセッツ ビー．ブイ． | Coated photonic crystal fiber |
| WO2023210461A1 (en) * | 2022-04-27 | 2023-11-02 | 株式会社フジクラ | Optical fiber wire, and production method for optical fiber ribbon |
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