JPH04123222U - Resin coating equipment for optical fibers or their aggregates - Google Patents
Resin coating equipment for optical fibers or their aggregatesInfo
- Publication number
- JPH04123222U JPH04123222U JP7152091U JP7152091U JPH04123222U JP H04123222 U JPH04123222 U JP H04123222U JP 7152091 U JP7152091 U JP 7152091U JP 7152091 U JP7152091 U JP 7152091U JP H04123222 U JPH04123222 U JP H04123222U
- Authority
- JP
- Japan
- Prior art keywords
- resin
- supply tank
- filter
- coating
- optical fibers
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 title claims abstract description 183
- 229920005989 resin Polymers 0.000 title claims abstract description 183
- 238000000576 coating method Methods 0.000 title claims abstract description 60
- 239000013307 optical fiber Substances 0.000 title claims abstract description 59
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 239000000499 gel Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 235000003976 Ruta Nutrition 0.000 description 1
- 240000005746 Ruta graveolens Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000005806 ruta Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
Abstract
(57)【要約】
【目的】 被覆されるべき樹脂内に入り込む泡、異物等
によって被覆の外観を悪くしたり、伝送特性、機械特性
を低下することがないようにして光ファイバ等に樹脂を
被覆する。
【構成】 樹脂供給タンク１２と樹脂塗布口金１４との
間に樹脂通過孔の直径が１００μｍ以下、好ましくは２
μｍ以下のフィルタ２０が設けられる。樹脂容器から樹
脂供給タンク１２内に樹脂３が移される際に、樹脂３内
に空気が入り込んで形成される多数の泡４は、フィルタ
２０によって細分化される。異物５やゲル分６は、フィ
ルタ２０によって除去される。
(57) [Summary] [Purpose] To coat optical fibers with resin without impairing the appearance of the coating or deteriorating the transmission characteristics and mechanical properties due to bubbles, foreign matter, etc. entering the resin to be coated. Cover. [Structure] A resin passage hole between the resin supply tank 12 and the resin application nozzle 14 has a diameter of 100 μm or less, preferably 2 μm or less.
A filter 20 of micrometer or less is provided. When the resin 3 is transferred from the resin container into the resin supply tank 12 , air enters the resin 3 and a large number of bubbles 4 are formed, and the filter 20 subdivides the bubbles 4 . The foreign matter 5 and the gel component 6 are removed by the filter 20.
Description
【０００１】0001
本考案は、例えば、光ファイバ又はその集合体に樹脂を被覆する装置の改良に 関するものである。 The present invention can be used, for example, to improve equipment for coating optical fibers or aggregates thereof with resin. It is related to
【０００２】0002
この種の樹脂被覆装置は、樹脂供給タンクと、この樹脂供給タンクから樹脂の 供給を受け、この樹脂を光ファイバ又はその集合体に被覆する樹脂塗布口金とか ら成っている。樹脂供給タンクに収納されている樹脂は、樹脂供給タンクに加圧 して供給される窒素ガスの如き不活性ガスによって樹脂塗布口金に加圧供給され 、光ファイバ又はその集合体（以下光ファイバ等と称する）は、樹脂塗布口金を 通過する際に樹脂が被覆され、その後樹脂硬化手段内を通って樹脂が硬化される 。尚、樹脂は樹脂容器から樹脂供給タンク内に注ぎ込まれて収納される。樹脂硬 化手段は、樹脂が紫外線硬化性樹脂である場合には紫外線照射手段から成り、樹 脂が熱硬化性樹脂である場合には加熱手段から成っている。 This type of resin coating equipment consists of a resin supply tank and a resin supply tank. A resin coating cap that receives the supply and coats the optical fiber or its aggregate with this resin. It consists of The resin stored in the resin supply tank is pressurized into the resin supply tank. The resin is pressurized and supplied to the resin coating nozzle by an inert gas such as nitrogen gas, which is supplied as a , optical fibers or aggregates thereof (hereinafter referred to as optical fibers, etc.) are coated with resin. The resin is coated as it passes through, and then passes through a resin curing means where the resin is cured. . Note that the resin is poured from the resin container into the resin supply tank and stored therein. resin hard When the resin is an ultraviolet curable resin, the curing means consists of an ultraviolet irradiation means; When the fat is a thermosetting resin, it consists of a heating means.
【０００３】0003
この種の樹脂被覆装置において、樹脂容器から樹脂供給タンク内に樹脂を注ぎ 込む際に樹脂内に空気が入り込んで樹脂内に多数の泡を発生することは避けられ ない。これらの泡は、樹脂と共に樹脂塗布口金に圧送され、従って光ファイバ等 の被覆内に泡を有することになる。この樹脂内の泡が大きいと、図５に示すよう に、光ファイバ等１の被覆２の外周面が部分的に膨らんで凹凸２ａが形成された り、樹脂硬化手段内で加熱された際に泡が破裂して被覆に穴２ｂが形成されたり して被覆２の外観を悪くする欠点があった。また、泡が被覆の外観を悪くしない 中程度の大きさである場合でも、光ファイバ等が低温雰囲気で使用される場合、 被覆の収縮によって光ファイバ等が泡を有する部分で曲がって伝送損失が大きく なる欠点があった。 In this type of resin coating equipment, resin is poured from a resin container into a resin supply tank. This prevents air from entering the resin and creating a large number of bubbles within the resin. do not have. These bubbles are pumped together with the resin into the resin applicator, and are therefore used to coat optical fibers, etc. will have bubbles within its coating. If the bubbles in this resin are large, as shown in Figure 5, In this case, the outer circumferential surface of the coating 2 of the optical fiber etc. 1 partially swelled and unevenness 2a was formed. When heated in the resin curing means, the bubbles burst and holes 2b are formed in the coating. This has the disadvantage that the appearance of the coating 2 is deteriorated. Also, bubbles do not deteriorate the appearance of the coating. Even if the size is medium, when optical fibers etc. are used in low temperature atmospheres, Due to shrinkage of the coating, the optical fiber, etc., bends at the part with bubbles, resulting in large transmission loss. There was a drawback.
【０００４】 さらに、樹脂容器の蓋を開けた場合や、樹脂供給タンクに樹脂を供給するため 樹脂容器に吸入パイプを挿入する場合等に、樹脂に異物が混入するおそれがあり 、また、樹脂は被覆時には約３０℃から８０℃に保温されるが、この際に樹脂の 一部がゲル化することがある。図６に示すように、これらの異物５又はゲル分６ が光ファイバ等１の被覆内に存在すると、光ファイバ等１の伝送特性、機械特性 が著しく低下するおそれがある。0004 Furthermore, when the lid of the resin container is opened or when supplying resin to the resin supply tank, When inserting a suction pipe into a resin container, there is a risk of foreign matter getting into the resin. Also, the resin is kept at a temperature of approximately 30°C to 80°C during coating; Some parts may gel. As shown in FIG. 6, these foreign substances 5 or gel components 6 exists within the coating of the optical fiber etc. 1, the transmission characteristics and mechanical properties of the optical fiber etc. 1 will change. may decrease significantly.
【０００５】 本考案の１つの目的は、上記の欠点を回避し、樹脂内に入り込む泡によって被 覆の外観を悪くしたり、伝送特性を低下することがないようにして光ファイバ等 に樹脂を被覆することができる光ファイバ又はその集合体用樹脂被覆装置を提供 することにある。[0005] One objective of the present invention is to avoid the above-mentioned drawbacks and to avoid the problems caused by bubbles penetrating into the resin. Optical fibers, etc. are Provides a resin coating device for optical fibers or aggregates thereof that can be coated with resin. It's about doing.
【０００６】 また、本考案の他の目的は、樹脂内に入り込む異物、ゲル分によって光ファイ バ等の伝送特性、機械特性を低下することがないようにして光ファイバ等に樹脂 を被覆することができる光ファイバ又はその集合体用樹脂被覆装置を提供するこ とにある。[0006] Another purpose of this invention is to prevent optical fibers from being damaged by foreign matter and gel components that enter the resin. Resin is applied to optical fibers, etc. in a manner that does not reduce the transmission characteristics and mechanical properties of optical fibers, etc. To provide a resin coating device for optical fibers or aggregates thereof, which can coat optical fibers with It's there.
【０００７】[0007]
本考案は、上記の課題の１つを解決する手段として、樹脂供給タンクとこの樹 脂供給タンクから樹脂の供給を受け、該樹脂を光ファイバ又はその集合体に被覆 する樹脂塗布口金とから成る光ファイバ又はその集合体用樹脂被覆装置において 、樹脂供給タンクと樹脂塗布口金との間に、樹脂通過孔の直径が１００μｍ以下 のフィルタを備えたことを特徴とする光ファイバ又はその集合体用樹脂被覆装置 を提供するものである。 The present invention aims to solve one of the above problems by connecting a resin supply tank and a resin supply tank to this tree. Receives a resin supply from a resin supply tank and coats the optical fiber or an assembly thereof with the resin. In a resin coating device for optical fibers or aggregates thereof, which consists of a resin coating cap and a resin coating cap. , The diameter of the resin passage hole is 100 μm or less between the resin supply tank and the resin coating nozzle. A resin coating device for an optical fiber or an assembly thereof, characterized in that it is equipped with a filter. It provides:
【０００８】 本考案は、上記の課題の他の１つを解決する手段として、樹脂供給タンクとこ の樹脂供給タンクから樹脂の供給を受け、該樹脂を光ファイバ又はその集合体に 被覆する樹脂塗布口金とから成る光ファイバ又はその集合体用樹脂被覆装置にお いて、樹脂供給タンクと樹脂塗布口金との間で樹脂塗布口金の直前に、樹脂通過 孔の直径が２μｍ以下のフィルタを備えたことを特徴とする光ファイバ又はその 集合体用樹脂被覆装置を提供するものである。[0008] The present invention provides a resin supply tank and a resin supply tank as a means to solve another of the above problems. The resin is supplied from the resin supply tank, and the resin is applied to the optical fiber or its aggregate. A resin coating device for optical fibers or their aggregates consisting of a resin coating cap to be coated. The resin is passed between the resin supply tank and the resin applicator just before the resin applicator. An optical fiber or its optical fiber characterized by being equipped with a filter having a hole diameter of 2 μm or less A resin coating device for aggregates is provided.
【０００９】[0009]
このように、樹脂供給タンクと樹脂塗布口金との間に樹脂通過孔の直径が１０ ０μｍ以下のフィルタを設けると、樹脂内に入り込んだ泡はフィルタによって細 分化されるので、被覆の外観を悪くしたり、低温雰囲気で使用される場合に光フ ァイバ又はその集合体に曲げを発生することがなく、伝送特性を低下することが ない。 In this way, the resin passage hole has a diameter of 10 mm between the resin supply tank and the resin application nozzle. If a filter with a diameter of 0 μm or less is installed, bubbles that have entered the resin will be narrowed down by the filter. This may deteriorate the appearance of the coating or cause optical fibers to deteriorate when used in low temperature atmospheres. No bending occurs in the fiber or its assembly, and transmission characteristics are not deteriorated. do not have.
【００１０】 また、フィルタの樹脂通過孔を２μｍ以下にすると、上記と同様に泡の細分化 の外に、樹脂内の異物、ゲル分を除去することができるので、これらの成分によ って光ファイバ等の伝送特性、機械特性を低下することがない。なお、フィルタ が樹脂塗布口金から離れていると、樹脂がフィルタを通過した後再びゲル分が発 生するので、フィルタは樹脂塗布口金の直前であることが必要である。0010 In addition, if the resin passage hole of the filter is set to 2 μm or less, the bubbles will be finely divided in the same way as above. In addition, these ingredients can remove foreign substances and gel components from the resin. Therefore, the transmission characteristics and mechanical characteristics of the optical fiber etc. are not deteriorated. In addition, the filter If the resin is far away from the resin applicator, gel will be generated again after the resin passes through the filter. Therefore, it is necessary to place the filter immediately before the resin application nozzle.
【００１１】[0011]
本考案の実施例を図面を参照して詳細にのべると、図１は本考案に係る光ファ イバ又はその集合体用樹脂被覆装置１０を示し、この樹脂被覆装置１０は、樹脂 供給タンク１２と、この樹脂供給タンク１２から樹脂３の供給を受け、この樹脂 ３を光ファイバ又はその集合体（光ファイバ等）１に被覆する樹脂塗布口金１４ とから成っている。樹脂３は、図２に示すように、樹脂容器１６から樹脂供給タ ンク１２に注ぎ込まれ、この樹脂供給タンク１２から窒素ガスの如き不活性ガス によって樹脂塗布口金１４に圧送される。また、樹脂塗布口金１４で樹脂３が塗 布されて形成された被覆２は、その下流側に配置された樹脂硬化手段１８によっ て硬化される。 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an optical fiber according to the present invention. A resin coating device 10 for fibers or aggregates thereof is shown, and this resin coating device 10 is The resin 3 is supplied from the supply tank 12 and the resin supply tank 12, and the resin 3 is supplied from the resin supply tank 12. 3 onto an optical fiber or an assembly thereof (such as an optical fiber) 1. It consists of. As shown in FIG. 2, the resin 3 is transferred from the resin container 16 to the resin supply tank. An inert gas such as nitrogen gas is poured into the resin supply tank 12 from the resin supply tank 12. The resin is fed under pressure to the resin application nozzle 14 by the resin application nozzle 14. Also, the resin 3 is coated with the resin coating nozzle 14. The coating 2 formed by the cloth is cured by the resin curing means 18 disposed on the downstream side thereof. hardened.
【００１２】 本考案の樹脂被覆装置１０は、樹脂供給タンク１２と樹脂塗布口金１４との間 に、樹脂通過孔の直径が１００μｍ以下、好ましくは２μｍ以下のフィルタ２０ を備えている。樹脂通過孔の直径が２μｍ（５０％）以下である場合には、フィ ルタ２０は、樹脂３がフィルタ２０を通過した後再びゲル化しないように、樹脂 塗布用口金１４の直前に設けられる。0012 The resin coating device 10 of the present invention is provided between a resin supply tank 12 and a resin coating nozzle 14. The filter 20 has resin passage holes having a diameter of 100 μm or less, preferably 2 μm or less. It is equipped with If the diameter of the resin passage hole is 2 μm (50%) or less, The filter 20 prevents the resin 3 from gelling again after passing through the filter 20. It is provided immediately before the coating nozzle 14.
【００１３】 既にのべたように、樹脂容器１６から樹脂供給タンク１２内に樹脂３が移され る際に、樹脂３内に空気が入り込んで多数の泡４が形成されるが、これらの泡４ は、樹脂供給タンク１２と樹脂塗布口金１４との間に設けられた直径が１００μ ｍ以下のフィルタ２０によって細分化される。このため、泡４によって被覆２が 部分的に膨らんだり、その破裂により穴が形成されたりすることがほとんどなく 、被覆の外観を良好にすることができる。また、光ファイバ等１が低温雰囲気で 使用される場合に、光ファイバ等１に曲げを発生することが防止され、伝送特性 を低下することがほとんどない。[0013] As already mentioned, the resin 3 is transferred from the resin container 16 into the resin supply tank 12. During the process, air enters the resin 3 and many bubbles 4 are formed, but these bubbles 4 The diameter of the space provided between the resin supply tank 12 and the resin applicator 14 is 100 μm. It is subdivided by filters 20 of m or less. Therefore, the coating 2 is damaged by the bubbles 4. There is little chance of partial bulges or holes forming due to rupture. , the appearance of the coating can be improved. Also, if the optical fiber etc. 1 is in a low temperature atmosphere, When used, bending of the optical fiber etc. 1 is prevented and transmission characteristics are improved. It almost never decreases.
【００１４】 また、樹脂供給タンク１２の蓋を開けた場合等に樹脂３内に異物５が混入した り、樹脂３が保温されることにより樹脂３の一部がゲル化しゲル分６が形成され ることがあるが、これらの異物５やゲル分６は、直径が２μｍ以下のフィルタ２ ０によって、除去される。従って、光ファイバ等１の伝送特性や機械特性が低下 することがない。[0014] Also, when the lid of the resin supply tank 12 is opened, foreign matter 5 gets mixed into the resin 3. As the resin 3 is kept warm, a part of the resin 3 gels and a gel component 6 is formed. However, these foreign substances 5 and gel components 6 can be removed by filter 2 with a diameter of 2 μm or less. 0 removes it. Therefore, the transmission characteristics and mechanical properties of optical fiber etc.1 deteriorate. There's nothing to do.
【００１５】 フィルタ２０の樹脂通過孔の直径を１００μｍ以下としたのは、フィルタの樹 脂通過孔が１００μｍより大きいと、泡の細分化が不充分で外観の不良化と低温 での伝送特性の低下を招くことが実験的に確認されたためである。 樹脂通過孔の直径が異なる種々のフィルタを用いて又は用いないで光ファイバ に樹脂を被覆した幾つかの実験例で、フィルタを用いないで樹脂を被覆した場合 には外観は悪かったが、樹脂通過孔の直径が５００μｍ及び１００μｍのフィル タを用いて樹脂を被覆した場合には、いずれも外観が良好であることが確認され た。従って、被覆の外観のみを考慮すると、樹脂通過孔が５００μｍ以下のフィ ルタでもよいことが解る。[0015] The reason why the diameter of the resin passage holes of the filter 20 is set to 100 μm or less is because of the tree of the filter. If the fat passage hole is larger than 100 μm, the bubbles will not be sufficiently divided, resulting in poor appearance and low temperature. This is because it has been experimentally confirmed that this leads to a decrease in transmission characteristics. Optical fibers with or without various filters with different resin passage hole diameters In some experimental examples where resin was coated on Although the appearance was bad, the resin passage hole diameter was 500μm and 100μm. It was confirmed that the appearance was good in all cases when the resin was coated using Ta. Therefore, considering only the appearance of the coating, it is important to consider that the resin passage hole is 500 μm or less. I understand that Ruta is also fine.
【００１６】 一方、上記実験例で得られた被覆を有する光ファイバについて温度−光伝送損 失特性を測定した結果が図３に示されている。図３において線ａはフィルタを用 いないで樹脂が被覆された光ファイバの特性を示し、線ｂは樹脂通過孔の直径が ５００μｍのフィルタを用いて樹脂が被覆された光ファイバの特性を示し、また 線ｃは樹脂通過孔の直径が１００μｍのフィルタを用いて樹脂が被覆された光フ ァイバの特性を示す。図３から解るように、樹脂通過孔の直径が１００μｍのフ ィルタを用いて樹脂を被覆した場合には−３０℃の低温雰囲気でも光伝送損失の 増加が見られなかった。従って、被覆の外観と伝送特性との両方を考慮すると、 フィルタの樹脂貫通孔の直径は１００μｍ以下であることが要求されることが解 る。[0016] On the other hand, for the optical fiber with the coating obtained in the above experimental example, the temperature-optical transmission loss is The results of measuring the loss characteristics are shown in FIG. In Figure 3, line a uses a filter. The line b shows the characteristics of an optical fiber coated with resin. The characteristics of a resin-coated optical fiber are shown using a 500 μm filter, and Line c is an optical fiber coated with resin using a filter with a resin passage hole diameter of 100 μm. Indicates the characteristics of the fiber. As can be seen from Figure 3, the diameter of the resin passage hole is 100 μm. If the resin is coated with a filter, the optical transmission loss will be reduced even in a low temperature atmosphere of -30℃. No increase was observed. Therefore, considering both the appearance and transmission properties of the coating, It is understood that the diameter of the resin through-hole in the filter is required to be 100 μm or less. Ru.
【００１７】 また、フィルタ２０の樹脂通過孔の直径を２μｍ以下とすると好ましいのは、 フィルタの樹脂通過孔が２μｍより大きいと、樹脂３内の異物５、ゲル分６を除 去することができないからである。即ち、樹脂通過孔の直径が１μｍ〜３０μｍ のフィルタを用いて、二重ダイスにより、プリフォームのばらつきが０．３５％ の光ファイバ素線に、１００μｍのメッシュを通したアルミ粒を混入した樹脂を 、３０ｋｍにわたって被覆して、外径０．１８ｍｍの１次被覆と外径０．２４ｍ ｍの２次被覆とを形成した。この後、各実験例により得られた光ファイバを１％ スクリーニングをして各実験例における破断率を測定し、また、各実験例により 得られた光ファイバの２ｋｍについて、胴径３００ｍｍのステンレス製のボビン に１０ｇと７０ｇの張力で巻付け、レーザー光源からの１．５７μｍでの損失差 を５回ずつ測定した結果が図４に示されている。図４において、線ｄは１μｍ〜 ３０μｍのフィルタ毎のスクリーニング破断率の推移を示し、線ｅは損失差を示 す。図４から解るように、樹脂通過孔の直径が２μｍ以下のフィルタを用いた場 合には、破断率及び損失差は共に、樹脂内粒子径に依存し、著しく抑えられてい る。従って、フィルタの樹脂通過孔は、２μｍ以下であることが要求される。な お、損失差とは、７０ｇでの損失値と１０ｇでの損失値との差をいう。[0017] Further, it is preferable that the diameter of the resin passage hole of the filter 20 is 2 μm or less. If the resin passage hole of the filter is larger than 2 μm, foreign matter 5 and gel component 6 in the resin 3 will be removed. This is because it cannot be removed. That is, the diameter of the resin passage hole is 1 μm to 30 μm. Preform variation is 0.35% with dual dies using a filter of A resin mixed with aluminum particles passed through a 100 μm mesh is added to the optical fiber wire. , covered over 30km with a primary coating of outer diameter 0.18mm and an outer diameter of 0.24m. A secondary coating of m was formed. After this, 1% of the optical fiber obtained in each experimental example was Screening was performed to measure the rupture rate in each experimental example, and For 2 km of the obtained optical fiber, a stainless steel bobbin with a body diameter of 300 mm was used. Wound with tension of 10g and 70g, loss difference at 1.57μm from laser light source The results of five measurements are shown in FIG. In FIG. 4, the line d is 1 μm ~ The graph shows the transition of the screening failure rate for each 30 μm filter, and the line e shows the loss difference. vinegar. As can be seen from Figure 4, when using a filter with a resin passage hole diameter of 2 μm or less, In this case, both the rupture rate and loss difference depend on the resin particle size and are significantly suppressed. Ru. Therefore, the resin passage holes of the filter are required to be 2 μm or less. Na Note that the loss difference refers to the difference between the loss value at 70 g and the loss value at 10 g.
【００１８】 また、樹脂通過孔の直径が２μｍのフィルタを用いて又は用いないで、光ファ イバに、２ｍ／ｓｅｃの線速で、ウレタンアクリル系の紫外線硬化樹脂を１００ ０ｋｍにわたり被覆して外径４００μｍの光ファイバ素線を形成した２つの実験 例で、これらの素線の突部（こぶ）を突部検知装置により測定したところ、フィ ルタを用いないで樹脂を被覆した場合には４８個の突部が発見されたが、樹脂通 過孔の直径が２μｍのフィルタを用いて樹脂を被覆した場合には、１３個の突部 しか発見されなかった。即ち、２μｍ以下のフィルタを用いることにより、外観 の不良部分も４分の１程度に低減することができた。[0018] In addition, optical fibers can be used with or without using a filter with a resin passage hole diameter of 2 μm. 100% of urethane acrylic ultraviolet curing resin was applied to the fiber at a linear speed of 2 m/sec. Two experiments in which an optical fiber with an outer diameter of 400 μm was formed by coating over 0 km. In the example, when we measured the protrusions (knots) of these strands using a protrusion detector, we found that the filament When the resin was coated without using a router, 48 protrusions were found; When the resin is coated using a filter with a pore diameter of 2 μm, there are 13 protrusions. only was discovered. In other words, by using a filter with a diameter of 2 μm or less, the appearance can be improved. The number of defective parts was also reduced to about one-fourth.
【００１９】[0019]
本考案によれば、上記のように、樹脂内の泡を細分化して光ファイバ等に樹脂 を被覆するので、被覆の外観を悪くしたり、光ファイバ等の伝送特性、機械特性 を低下することがない上に、樹脂内の異物やゲル分を除去するので光ファイバ等 の伝送特性、機械特性を低下することがなく、光ファイバ等の樹脂を良好に被覆 することができる実益がある。 According to the present invention, as described above, the bubbles in the resin are broken down and the resin is made into optical fibers. coating, it may deteriorate the appearance of the coating or affect the transmission characteristics and mechanical properties of optical fiber In addition to not reducing the quality of optical fibers, it removes foreign substances and gel from the resin. Excellent coating of resin for optical fibers, etc., without deteriorating transmission characteristics and mechanical properties. There are practical benefits that can be achieved.
【図１】本考案に係る樹脂被覆装置の概略系統図であ
る。FIG. 1 is a schematic system diagram of a resin coating apparatus according to the present invention.
【図２】本考案の樹脂被覆装置の樹脂供給タンクに樹脂
を注ぎ込む状態の説明図である。FIG. 2 is an explanatory diagram of a state in which resin is poured into a resin supply tank of the resin coating apparatus of the present invention.
【図３】本考案の装置と他の装置とによって形成された
樹脂の被覆を有する種々の光ファイバの温度−光損失特
性を示すグラフである。FIG. 3 is a graph showing the temperature-light loss characteristics of various optical fibers having resin coatings formed by the apparatus of the present invention and other apparatuses.
【図４】本考案の装置と他の装置とによって形成された
樹脂の被覆を有する種々の光ファイバの破断率及び損失
差を示すグラフである。FIG. 4 is a graph showing the breakage rate and loss difference of various optical fibers having resin coatings formed by the apparatus of the present invention and other apparatuses.
【図５】従来技術によって泡を有するまま樹脂が塗布さ
れて形成された光ファイバの被覆の断面図である。FIG. 5 is a cross-sectional view of an optical fiber coating formed by applying a resin with bubbles according to the prior art.
【図６】従来技術によって異物やゲル分が混入されたま
ま樹脂が塗布されて形成された光ファイバの被覆の断面
図である。FIG. 6 is a cross-sectional view of an optical fiber coating formed by applying a resin with foreign substances and gel components mixed therein according to the prior art.
１ 光ファイバ等 ２ 被覆 ３ 樹脂 ４ 泡 ５ 異物 ６ ゲル分 １０ 樹脂被覆装置 １２ 樹脂供給タンク １４ 樹脂塗布口金 ２０ フィルタ 1 Optical fiber etc. 2 Covering 3 Resin 4 Bubbles 5 Foreign matter 6 Gel portion 10 Resin coating equipment 12 Resin supply tank 14 Resin coating nozzle 20 Filter
Claims (2)
ら樹脂の供給を受け、該樹脂を光ファイバ又はその集合
体に被覆する樹脂塗布口金とから成る光ファイバ又はそ
の集合体用樹脂被覆装置において、前記樹脂供給タンク
と樹脂塗布口金との間に、樹脂通過孔の直径が１００μ
ｍ以下のフィルタを備えたことを特徴とする光ファイバ
又はその集合体用樹脂被覆装置。1. A resin coating device for optical fibers or an assembly thereof, comprising a resin supply tank and a resin coating base that receives resin from the resin supply tank and coats the optical fiber or assembly with the resin, A resin passage hole has a diameter of 100 μm between the resin supply tank and the resin application nozzle.
A resin coating device for an optical fiber or an assembly thereof, characterized in that it is equipped with a filter of m or less.
ら樹脂の供給を受け、該樹脂を光ファイバ又はその集合
体に被覆する樹脂塗布口金とから成る光ファイバ又はそ
の集合体用樹脂被覆装置において、前記樹脂供給タンク
と樹脂塗布口金との間で前記樹脂塗布口金の直前に、樹
脂通過孔の直径が２μｍ以下のフィルタを備えたことを
特徴とする光ファイバ又はその集合体用樹脂被覆装置。2. A resin coating device for optical fibers or an assembly thereof, comprising a resin supply tank and a resin coating base that receives resin supply from the resin supply tank and coats the optical fiber or assembly with the resin, A resin coating device for optical fibers or an assembly thereof, characterized in that a filter having a resin passage hole having a diameter of 2 μm or less is provided between the resin supply tank and the resin coating cap and immediately before the resin coating cap.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991071520U JP2585373Y2 (en) | 1991-02-13 | 1991-08-13 | Resin coating device for optical fiber or aggregate thereof |
| CA 2075546 CA2075546C (en) | 1991-08-13 | 1992-08-10 | Apparatus for coating optical fiber or bundle of optical fibers with resin |
| EP92113742A EP0527479B1 (en) | 1991-08-13 | 1992-08-12 | Apparatus for coating optical fiber or bundle of optical fibers with resin |
| CN92110463A CN1037336C (en) | 1991-08-13 | 1992-08-12 | Apparatus for coating optical fiber or bundle of optical fibers with resin |
| DE1992600578 DE69200578T2 (en) | 1991-08-13 | 1992-08-12 | Device for coating optical fibers or strands of optical fibers with resin. |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3-11958 | 1991-02-13 | ||
| JP1195891 | 1991-02-13 | ||
| JP1991071520U JP2585373Y2 (en) | 1991-02-13 | 1991-08-13 | Resin coating device for optical fiber or aggregate thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04123222U true JPH04123222U (en) | 1992-11-06 |
| JP2585373Y2 JP2585373Y2 (en) | 1998-11-18 |
Family
ID=31948247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991071520U Expired - Lifetime JP2585373Y2 (en) | 1991-02-13 | 1991-08-13 | Resin coating device for optical fiber or aggregate thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585373Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715744U (en) * | 1993-08-16 | 1995-03-17 | 古河電気工業株式会社 | Optical fiber resin coating device |
| JP2002516377A (en) * | 1998-05-28 | 2002-06-04 | デー エス エム エヌ．ヴェー． | Radiation curable ink composition for coated optical fiber glass |
| JP2005524871A (en) * | 2002-05-09 | 2005-08-18 | ボーデン・ケミカル・インコーポレーテッド | Method for producing and using a material having no protruding lump, and product coated with a material having no protruding lump |
| US10677983B2 (en) | 2017-07-31 | 2020-06-09 | Ofs Fitel, Llc | Optically uniform fiber, methods of making, and methods of inspecting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63318509A (en) * | 1987-06-22 | 1988-12-27 | Mitsubishi Cable Ind Ltd | Quartz glass optical fiber and its production |
| JPH0287038U (en) * | 1988-12-21 | 1990-07-10 |
-
1991
- 1991-08-13 JP JP1991071520U patent/JP2585373Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63318509A (en) * | 1987-06-22 | 1988-12-27 | Mitsubishi Cable Ind Ltd | Quartz glass optical fiber and its production |
| JPH0287038U (en) * | 1988-12-21 | 1990-07-10 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715744U (en) * | 1993-08-16 | 1995-03-17 | 古河電気工業株式会社 | Optical fiber resin coating device |
| JP2002516377A (en) * | 1998-05-28 | 2002-06-04 | デー エス エム エヌ．ヴェー． | Radiation curable ink composition for coated optical fiber glass |
| JP2005524871A (en) * | 2002-05-09 | 2005-08-18 | ボーデン・ケミカル・インコーポレーテッド | Method for producing and using a material having no protruding lump, and product coated with a material having no protruding lump |
| US10677983B2 (en) | 2017-07-31 | 2020-06-09 | Ofs Fitel, Llc | Optically uniform fiber, methods of making, and methods of inspecting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2585373Y2 (en) | 1998-11-18 |
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