JPS615211A - Production for optical tape-type unit - Google Patents
Production for optical tape-type unitInfo
- Publication number
- JPS615211A JPS615211A JP59125811A JP12581184A JPS615211A JP S615211 A JPS615211 A JP S615211A JP 59125811 A JP59125811 A JP 59125811A JP 12581184 A JP12581184 A JP 12581184A JP S615211 A JPS615211 A JP S615211A
- Authority
- JP
- Japan
- Prior art keywords
- wavelength
- ultraviolet rays
- absorption spectrum
- protective layer
- optical 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.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は光ファイバのまわりに紫外線硬化性樹脂からな
る被覆層を設けた複数本の光フアイバ素線を平面状に並
行に並べ、これに紫外線硬化性樹脂からなる保護層を一
体的に設Ｌｊてなる光テープ型ユニットの製造方法に関
するものである。[Detailed Description of the Invention] [Technical Field] The present invention involves arranging a plurality of optical fibers in parallel in a plane, each of which has a coating layer made of an ultraviolet curable resin around the optical fiber. The present invention relates to a method of manufacturing an optical tape type unit integrally provided with a protective layer made of resin.
従来より第３図に示すような光テープ型ユニットが知ら
れている。これは、光ファイバ１にシリコーンからなる
被覆層２を設けた複数本の光フアイバ素線３を平面状に
並行に並べ、これにナイロンからなる保護Ｎ４を一体カ
に被覆したものである。ところが、被覆層２がシリコー
ンからなり、保護層４がナイロンからなる従来の光テー
プ型ユニ７）においては、この材料の組み合わせが原因
で、時間の経過と共に水素が発生し、これが光フアイバ
１内で水酸基に変化し、光ファイバ１の伝送特性を劣化
させることがわがってきた。加えて、前記材料は硬化さ
せるのに時間がかかり、製造線速が上がらない。それ故
、この光テープ型ユニットの価格を下げることができな
い。このような問題に対して、これまで種々の材料検討
がなされ、その結果、最近になって、前記被覆Ｎ２およ
び保護層４を共に紫外線硬化性樹脂で構成することが提
案された。このように紫外線硬化性樹脂で被覆層２およ
び保護層４を構成する光テープ型ユニソトでは、時間の
経過と共に水素が発生するという問題はなく、それ故、
経時的に光ファイバ１の伝送特性が劣化することがない
。加えて、紫外線硬化性樹脂はその硬化速度を速くでき
るので、製造コストの低減が図り易く、しって、価格の
安いものができるというメリットもある。ところが、単
純に紫外線硬化性樹脂で被覆層２および保護層４を構成
しただけでは、該被覆層２および保護層４との間、すな
わち、光フアイバ素線３と保護層４との間で接着が生じ
、両者が化学的結合状態にあるため、低温下、例えば、
−３０’ｃの温度条件に曝されると、被覆層２あるいは
保護層４の少なくとも一方が収縮したり、あるいはまた
、この光テープ型ユニットが外力を受けたりすると、一
方の層が他方の層に引っ張られて、マイクロベンドが発
生してしまう。その結果、光ファイバｌの伝送特性の劣
化が避けられないという問題がある。以上の理由により
、紫外線硬化性樹脂で光ファイバ素ｋＩＡ３の被覆層２
、および保護層４を形成することには大きなメリットが
見出せるものの、低温に曝された場合、および外力を受
けた場合の応力緩和効果に問題があり、現在までのとこ
ろ、実用に供する状態に至っていない。Conventionally, an optical tape type unit as shown in FIG. 3 has been known. This is an optical fiber 1 in which a plurality of optical fiber wires 3 each having a coating layer 2 made of silicone are arranged in parallel in a plane, and are integrally coated with a protective layer N4 made of nylon. However, in the conventional optical tape type unit 7) in which the coating layer 2 is made of silicone and the protective layer 4 is made of nylon, hydrogen is generated over time due to this combination of materials, and this hydrogen is generated inside the optical fiber 1. It has been found that this substance changes into hydroxyl groups and deteriorates the transmission characteristics of the optical fiber 1. In addition, the materials take a long time to cure and do not increase manufacturing line speeds. Therefore, the price of this optical tape type unit cannot be reduced. To solve this problem, various materials have been studied, and as a result, it has recently been proposed that both the coating N2 and the protective layer 4 be made of ultraviolet curable resin. In this way, the optical tape type Unisoto in which the coating layer 2 and the protective layer 4 are made of ultraviolet curable resin does not have the problem of hydrogen generation over time, and therefore,
The transmission characteristics of the optical fiber 1 do not deteriorate over time. In addition, since the curing speed of ultraviolet curable resins can be increased, manufacturing costs can be easily reduced, which has the advantage of producing products at low prices. However, if the coating layer 2 and the protective layer 4 are simply made of ultraviolet curable resin, there will be no adhesion between the coating layer 2 and the protective layer 4, that is, between the optical fiber wire 3 and the protective layer 4. occurs and the two are in a chemically bonded state, so at low temperatures, e.g.
When exposed to a temperature condition of -30'C, at least one of the coating layer 2 or the protective layer 4 shrinks, or when this optical tape type unit is subjected to an external force, one layer may overlap the other layer. Microbends occur due to the pull. As a result, there is a problem in that the transmission characteristics of the optical fiber 1 inevitably deteriorate. For the above reasons, the coating layer 2 of the optical fiber element kIA3 is made of ultraviolet curable resin.
Although there are great advantages in forming the protective layer 4, there are problems with the stress relaxation effect when exposed to low temperatures and when subjected to external force, and so far, it has not been put to practical use. not present.
前記問題に鑑み、本発明の目的は、温度特性、側圧特性
を含めた長期信頼性に優れ、かつ、価格の安い光テープ
型ユニットを得るための光テープ型ユニットの製造方法
を提供することにある。In view of the above problems, an object of the present invention is to provide a method for manufacturing an optical tape type unit that has excellent long-term reliability including temperature characteristics and lateral pressure characteristics and is inexpensive. be.
前記目的を達成すべく本発明の光テープ型ユニットの製
造方法は、光ファイバのまわりに紫外線硬化性樹脂から
なる被覆層を設けてなる光フアイバ素線を複数本平面状
に並行に並べ、これに一体的に前記被覆層の紫外線硬化
性樹脂と吸収スペクトル波長の異なる紫外線硬化性樹脂
からなる保護層を設けてなる光テープ型ユニットの製造
方法において、前記保護層を形成する紫外線硬化性樹脂
に該紫外線硬化性樹脂の吸収スペクトル波長のピーク波
長におおよそ等しい波長の紫外線のみを照射することを
特徴とするものである。In order to achieve the above object, the method for manufacturing an optical tape type unit of the present invention involves arranging a plurality of optical fibers each having a coating layer made of an ultraviolet curable resin around the optical fiber in parallel in a plane. In the method of manufacturing an optical tape type unit, a protective layer made of an ultraviolet curable resin having a different absorption spectrum wavelength from the ultraviolet curable resin of the coating layer is integrally provided on the ultraviolet curable resin forming the protective layer. It is characterized in that only ultraviolet rays having a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin are irradiated.
本発明の実施例を図を参照して詳細に説明する。 Embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の光テープ型ユニットの製造方法の一実
施例を示している。本図が示すように、本発明の光テー
プ型ユニットの製造方法は５．予め光ファイバ１のまわ
りに紫外線硬化性樹脂からなる被覆層２を被覆してなる
光フアイバ素線３を各々ボビン１０．１（１−一一一に
より供給し、ガイドロール１１にて平面状に並行に整列
し、これに前記被覆層２の紫外線硬化性樹脂、（被覆層
２が複数の層からなる場合は、被覆層２の最外層の紫外
線硬化性樹脂をさす）とその吸収スペクトル波長が異な
る熔融状態の紫外線硬化性樹脂を材料供給タンク１２に
より供給塗布し、成形ダイス１３で過剰の樹脂を除去し
つつ、前記溶融状態の紫外線硬化性樹脂を一体的に被覆
し、かつ、全体をテープ状に成形する。FIG. 1 shows an embodiment of the method for manufacturing an optical tape type unit of the present invention. As shown in this figure, the method for manufacturing an optical tape type unit of the present invention is as follows. Optical fiber strands 3 each having a coating layer 2 made of an ultraviolet curable resin coated around the optical fiber 1 are each supplied by a bobbin 10.1 (1-111) and rolled into a flat shape by a guide roll 11. The ultraviolet curable resin of the coating layer 2 (if the coating layer 2 consists of multiple layers, this refers to the ultraviolet curable resin of the outermost layer of the coating layer 2) and its absorption spectrum wavelength are arranged in parallel. UV curable resins in different molten states are supplied and coated from a material supply tank 12, and while excess resin is removed by a molding die 13, the molten UV curable resins are integrally coated, and the entire body is covered with tape. Shape into shape.
続いて、紫外線ランプ１４内を通し、前記熔融状態の紫
外線硬化性樹脂に該紫外線硬化性樹脂の吸収スペクトル
波長のピーク波長におおよそ等しい波長の紫外線のみを
照射して硬化を促し、保護層４を形成し、しかる後、引
取機１５で引き取り、巻取機１６で巻き取る。尚、前記
保護層４を形成する紫外線硬化性樹脂に、該紫外線硬化
性樹脂の吸収スペクトル波長のピーク波長におおよそ等
しい波長の紫外線のみを照射するため、第２図の如く、
紫外線ランプ１４内に、前記ピーク波長およびその近傍
値のみ通すフィルター１７を内装しておき、前記ピーク
波長およびその近傍値のみを前記保護層４を形成する紫
外線硬化性樹脂に照射する。ここで、吸収スペクトル波
長とは、ある紫外線硬化性樹脂が硬化する紫外線の波長
をいい、各紫外線硬化性樹脂は各々特定の吸収スペクト
ル波長を有する。Subsequently, the molten ultraviolet curable resin is irradiated with only ultraviolet rays having a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin through an ultraviolet lamp 14 to promote curing, thereby forming the protective layer 4. After that, it is taken up by a take-up machine 15 and wound up by a wind-up machine 16. In addition, in order to irradiate the ultraviolet curable resin forming the protective layer 4 with only ultraviolet rays having a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin, as shown in FIG.
The ultraviolet lamp 14 is equipped with a filter 17 that allows only the peak wavelength and its vicinity to pass through, and the ultraviolet curable resin forming the protective layer 4 is irradiated with only the peak wavelength and its vicinity. Here, the absorption spectrum wavelength refers to the wavelength of ultraviolet light at which a certain ultraviolet curable resin is cured, and each ultraviolet curable resin has a specific absorption spectrum wavelength.
次ぎに、この吸収スペクトル波長が異なるということは
どういうことかを第４図で説明する。いま、紫外線硬化
性樹脂への吸収スペクトル波長のピーク波長をλ１とし
、紫外線硬化性樹脂Ｂの吸収スペクトル波長のピーク波
長をλ２とする。さらに、各々の波長の高さを２ｈとし
、その半分である高さｈでの波長幅を２λ８．２λ２と
するとき、λ１＋λ１〈λ２−λおであれば、両者の吸
収スペクトル波長が異なると定義する。Next, what it means that the absorption spectrum wavelengths are different will be explained with reference to FIG. Now, the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin is assumed to be λ1, and the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin B is assumed to be λ2. Furthermore, when the height of each wavelength is 2h, and the wavelength width at half the height h is 2λ8.2λ2, if λ1+λ1<λ2−λ, then it is defined that the absorption spectrum wavelengths of the two are different. do.
このような方法で製造してなる光テープ型ユニットでは
、被覆層２と保護層４、すなわち、光フアイバ素線３と
保護層４との間で接着がおこらない。この理由は、保護
層４を構成する紫外線硬化性樹脂に、該紫外線硬化性樹
脂の吸収スペクトル波長のビーク波長にほぼ等しい波長
の紫外線のみ照射したため、この紫外線を照射した際、
内側に位置する被覆層２は、前記紫外線に何等反応を示
さず、それ故、被覆層２と保護層４との間には化学的結
合が生しないためである。In the optical tape type unit manufactured by such a method, adhesion does not occur between the coating layer 2 and the protective layer 4, that is, between the optical fiber strand 3 and the protective layer 4. The reason for this is that the ultraviolet curable resin constituting the protective layer 4 was irradiated with only ultraviolet rays with a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin.
This is because the coating layer 2 located on the inside does not show any reaction to the ultraviolet rays, and therefore no chemical bond is formed between the coating layer 2 and the protective layer 4.
以上のように、本発明の光テープ型ユニットの製造方法
によれば、光テープ型ユニットの被覆層２と保護層４と
の間の接着を防止できる。それ故、このように製造して
なる光テープ型ユニットが、例えば、−３０℃という温
度下に曝されて、仮に保護層４が収縮しても、あるいは
また、外力を負荷されても、光フアイバ素線３と保護層
４との間で応力緩和が起こり、従来のもので問題となっ
ていた光フアイバ１０マイクロベントはほとんど発生し
ない。それ故、光ファイバ１の伝送特性の劣化もほとん
どない。その理由は、ミクロ的に見て、前記被覆層２と
保護層４との間が接着していないので、前記両層間に歪
を生じるような応力が発生しても、光フアイバ素線３と
保護層４七の間で滑りが生し、この滑りにより前記応力
の緩和が行われるものと推定される。As described above, according to the method for manufacturing an optical tape type unit of the present invention, adhesion between the coating layer 2 and the protective layer 4 of the optical tape type unit can be prevented. Therefore, even if the optical tape type unit manufactured in this way is exposed to a temperature of, for example, -30°C and the protective layer 4 shrinks, or even if an external force is applied, the optical tape type unit will not emit light. Stress relaxation occurs between the fiber strand 3 and the protective layer 4, and micro-bent in the optical fiber 10, which has been a problem in conventional optical fibers, hardly occurs. Therefore, there is almost no deterioration in the transmission characteristics of the optical fiber 1. The reason for this is that microscopically, there is no adhesion between the coating layer 2 and the protective layer 4, so even if stress that causes strain occurs between the two layers, the optical fiber strand 3 It is presumed that slippage occurs between the protective layers 47 and that the stress is alleviated by this slippage.
以下に本発明の具体例を示す。 Specific examples of the present invention are shown below.
。光フアイバ素線３の被覆層２の材料
大日本インキ化学工業■製ＤＡＩＣＵＲＥ Ｃ０ＡＴ
７７０５（吸収スペクトル波長のビーク波長２８０ ｎ
ｍ）。保護Ｎ４の材料
Ｄｅｓｏｔｏ社製Ｄｅｓｏｌｉｔｅ ９５０Ｘ１０１（
吸収スペクトル波長のビーク波長３４０ｎｍ）前記材料
は共に紫外線硬化性樹脂で、これら樹脂を用い、前記本
発明の光テープ型ユニットの製造方法に従って光テープ
型ユニットを製造したところ、保護層４を構成する紫外
線硬化性樹脂に、該紫外線硬化性樹脂の吸収スペクトル
波長のビーク波長にほぼ等しい波長の紫外線を照射して
も、内側の被覆層２には何等変化が見られず、被覆層２
と保１１１１ｉ４との間には化学的結合状態、つまり接
着は生じなかった。そしてこのようにして得た光テープ
型ユニットを、ケーブルが曝される一般的温度条件であ
る一３０℃〜７０℃という温度下に曝しても、また、外
部から力を加えても、光ファイバ１にはほとんど伝送特
性の劣化は見られなかった。しかも、すべて紫外線硬化
性樹脂により各層が構成されているので、硬化速度を速
くでき、もって、価格の安い光テープ型ユニットを得る
ことができた。. Material of coating layer 2 of optical fiber wire 3 DAICURE C0AT manufactured by Dainippon Ink and Chemicals
7705 (Beak wavelength of absorption spectrum wavelength 280n
m). Protection N4 material: Desolite 950X101 manufactured by Desoto (
(Beak wavelength of absorption spectrum wavelength: 340 nm) Both of the above materials are ultraviolet curable resins, and when an optical tape type unit was manufactured using these resins according to the method for manufacturing an optical tape type unit of the present invention, the protective layer 4 was formed. Even when the ultraviolet curable resin is irradiated with ultraviolet rays having a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin, no change is observed in the inner coating layer 2, and the coating layer 2
No chemical bonding, that is, adhesion, occurred between the sample and the 1111i4. Even if the optical tape type unit obtained in this way is exposed to temperatures of -30°C to 70°C, which are the general temperature conditions that cables are exposed to, and even if external force is applied, the optical fiber 1, almost no deterioration in transmission characteristics was observed. Furthermore, since each layer is entirely composed of an ultraviolet curable resin, the curing speed can be increased, thereby making it possible to obtain an inexpensive optical tape type unit.
以上に述べたように、本発明によれば、温度特性、側圧
特性を含めた長期信頼性に優れ、しかも、価格の安い光
テープ型ユニットを得ることができる。As described above, according to the present invention, it is possible to obtain an optical tape type unit that has excellent long-term reliability including temperature characteristics and lateral pressure characteristics, and is inexpensive.
第１図は本発明の光テープ型ユニットの製造方法の一実
施例を示す製造装置の概略図、第２図は前記第１図に係
わる紫外線ランプの斜視図、第３図は光テープ型ユニッ
トの横断面図、第４図は紫外線硬化性樹脂の吸収スペク
トル波長の差を説明するための説明図である。
■ ・・・−光ファイバ ２−−一被覆層 ３−−−−
光フアイバ素線 ４−−−一保護層 １２− 材料供
給タンク １３−・−成形ダイス １４−−−一紫外線
ランプ１７−・−フィルターFIG. 1 is a schematic diagram of a manufacturing apparatus showing an embodiment of the method for manufacturing an optical tape type unit of the present invention, FIG. 2 is a perspective view of the ultraviolet lamp according to FIG. 1, and FIG. 3 is an optical tape type unit FIG. 4 is an explanatory diagram for explaining the difference in absorption spectrum wavelength of the ultraviolet curable resin. ■ ...-Optical fiber 2--One coating layer 3--
Optical fiber wire 4-----Protective layer 12--Material supply tank 13-- Molding die 14-----Ultraviolet lamp 17--Filter
Claims (1)
を設けてなる光ファイバ素線を複数本平面状に並行に並
べ、これに一体的に前記被覆層の紫外線硬化性樹脂と吸
収スペクトル波長の異なる紫外線硬化性樹脂からなる保
護層を設けてなる光テープ型ユニットの製造方法におい
て、前記保護層を形成する紫外線硬化性樹脂に該紫外線
硬化性樹脂の吸収スペクトル波長のピーク波長におおよ
そ等しい波長の紫外線のみを照射することを特徴とする
光テープ型ユニットの製造方法。A plurality of optical fibers each having a coating layer made of an ultraviolet curable resin around the optical fiber are arranged in parallel in a plane, and are integrally formed with a fiber having an absorption spectrum wavelength different from that of the ultraviolet curable resin of the coating layer. In a method for manufacturing an optical tape type unit provided with a protective layer made of an ultraviolet curable resin, the ultraviolet curable resin forming the protective layer is exposed to ultraviolet rays having a wavelength approximately equal to the peak wavelength of the absorption spectrum wavelength of the ultraviolet curable resin. A method for manufacturing an optical tape type unit, characterized in that it irradiates only a light beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59125811A JPS615211A (en) | 1984-06-19 | 1984-06-19 | Production for optical tape-type unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59125811A JPS615211A (en) | 1984-06-19 | 1984-06-19 | Production for optical tape-type unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS615211A true JPS615211A (en) | 1986-01-11 |
Family
ID=14919506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59125811A Pending JPS615211A (en) | 1984-06-19 | 1984-06-19 | Production for optical tape-type unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS615211A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448210A (en) * | 1977-09-26 | 1979-04-16 | Sony Corp | Automatic tracking system |
| JPS6173114A (en) * | 1984-09-18 | 1986-04-15 | Furukawa Electric Co Ltd:The | Tape-shaped optical fiber unit |
| JPS62165612A (en) * | 1986-01-17 | 1987-07-22 | Sumitomo Electric Ind Ltd | Tape-type optical unit |
| JPH01166011A (en) * | 1987-12-22 | 1989-06-29 | Sumitomo Electric Ind Ltd | Optical fiber |
| JPH01276105A (en) * | 1988-04-28 | 1989-11-06 | Sumitomo Electric Ind Ltd | Optical fiber |
-
1984
- 1984-06-19 JP JP59125811A patent/JPS615211A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448210A (en) * | 1977-09-26 | 1979-04-16 | Sony Corp | Automatic tracking system |
| JPS6173114A (en) * | 1984-09-18 | 1986-04-15 | Furukawa Electric Co Ltd:The | Tape-shaped optical fiber unit |
| JPS62165612A (en) * | 1986-01-17 | 1987-07-22 | Sumitomo Electric Ind Ltd | Tape-type optical unit |
| JPH01166011A (en) * | 1987-12-22 | 1989-06-29 | Sumitomo Electric Ind Ltd | Optical fiber |
| JPH01276105A (en) * | 1988-04-28 | 1989-11-06 | Sumitomo Electric Ind Ltd | Optical fiber |
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