JPH09152535A - Water-stopping tape and optical fiber cable using the same - Google Patents
Water-stopping tape and optical fiber cable using the sameInfo
- Publication number
- JPH09152535A JPH09152535A JP7312287A JP31228795A JPH09152535A JP H09152535 A JPH09152535 A JP H09152535A JP 7312287 A JP7312287 A JP 7312287A JP 31228795 A JP31228795 A JP 31228795A JP H09152535 A JPH09152535 A JP H09152535A
- Authority
- JP
- Japan
- Prior art keywords
- water
- absorbent resin
- optical fiber
- fiber cable
- tape
- 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 21
- 229920005989 resin Polymers 0.000 claims abstract description 52
- 239000011347 resin Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000002250 absorbent Substances 0.000 claims abstract description 39
- 125000006850 spacer group Chemical group 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 230000002745 absorbent Effects 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 239000004745 nonwoven fabric Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229920005549 butyl rubber Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241000283070 Equus zebra Species 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、通信用ケーブルや
電力ケーブル等の走水防止のために使用される止水テー
プ、および、本発明の止水テープを適用した光ファイバ
ケーブルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-stop tape used for preventing running of communication cables, power cables, etc., and an optical fiber cable to which the water-stop tape of the present invention is applied.
【０００２】[0002]
【従来の技術】従来より、光ファイバケーブルや電力ケ
ーブルの保護層が破損して水が侵入してきた場合、その
走水を防止するために止水テープが施されていた。図５
に、従来より用いられている防水型光ファイバケーブル
の断面図を示す。テンションメンバ１を中心として、そ
の外周に６本のらせん状の溝部２を備えたスロット付ス
ペーサ３が設けられており、各々の溝部２には、４心光
ファイバを有するテープ心線４が積層されて配置された
り、介在５および介在対６が配置される。この様なスロ
ット付スペーサ３の外周に、止水テープをラップ巻きす
ることにより形成した押え巻き層７が設けられ、さらに
最外層には、シース８が被覆されており、この押え巻き
層７とシース８の間には、切裂き紐９が設けられてい
る。近年では、スロット付スペーサ３の外周に粗巻紐
（図示せず）を巻回してから、止水テープを縦添え巻き
して、押え巻き層７を形成し、さらにシース８を設ける
光ファイバケーブルも実用化されている。2. Description of the Related Art Conventionally, when a protective layer of an optical fiber cable or an electric power cable is damaged and water enters, a water stopping tape is applied to prevent water from running. FIG.
Fig. 1 shows a cross-sectional view of a waterproof optical fiber cable that has been conventionally used. A slotted spacer 3 having six spiral groove portions 2 around the tension member 1 is provided, and a tape core wire 4 having a 4-fiber optical fiber is laminated in each groove portion 2. Or the interposition 5 and the interposition pair 6 are disposed. A pressing winding layer 7 formed by wrapping a waterproof tape around the outer periphery of such a spacer 3 with slots is provided, and a sheath 8 is coated on the outermost layer. A tear string 9 is provided between the sheaths 8. In recent years, an optical fiber cable in which a rough winding string (not shown) is wound around the outer circumference of the spacer 3 with slots, and then a waterproof tape is longitudinally wound to form a press winding layer 7 and a sheath 8 is further provided. Has also been put to practical use.
【０００３】そして、前述の押え巻き層７としてスロッ
ト付スペーサ３上に巻回される止水テープは、不織布シ
ート等の基材上に、粉末状あるいは粒状の吸水性樹脂と
バインダとの混合物を塗布したもの、さらにその上を不
織布シート等からなるカバー材で覆われているもの、あ
るいは、不織布シート等の基材の両面に、粉末状あるい
は粒状の吸水性樹脂とバインダとの混合物を塗布したも
のなどが用いられている。The waterproof tape wound around the slotted spacer 3 as the above-mentioned press-winding layer 7 comprises a mixture of a powdery or granular water-absorbent resin and a binder on a substrate such as a non-woven fabric sheet. A mixture of a powdery or granular water-absorbent resin and a binder is applied to both the coated material, the one covered with a cover material made of a non-woven fabric sheet or the like, or both sides of a substrate such as a non-woven fabric sheet. Things are used.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、近年で
は吸水性樹脂の吸水性が向上してきているので、従来の
製品よりコストが低く、かつ吸水性能は低下しない止水
テープが望まれている。However, in recent years, since the water absorption property of the water absorbent resin has been improved, there is a demand for a water blocking tape which is lower in cost than conventional products and whose water absorption performance is not deteriorated.
【０００５】以上の点に鑑み本発明は、コストを低下さ
せ、かつ吸水性能を低下させない止水テープおよびこの
止水テープを用いた光ファイバケーブルを提供すること
を目的とする。In view of the above points, it is an object of the present invention to provide a water blocking tape that reduces cost and does not lower water absorption performance, and an optical fiber cable using this water blocking tape.
【０００６】[0006]
【課題を解決するための手段】本発明の止水テープは、
シート状基材の片面または両面に、吸水性樹脂とバイン
ダとを混合した樹脂を長手方向に間欠的に塗布すること
により複数の吸水樹脂帯を設けたことを要旨とする。The water-stopping tape of the present invention comprises:
The gist of the present invention is to provide a plurality of water-absorbent resin bands by intermittently applying a resin mixed with a water-absorbent resin and a binder in the longitudinal direction on one or both sides of a sheet-shaped substrate.
【０００７】以下、本発明の各構成をより詳細に説明す
る。本発明でシート状基材は、ケーブル等に巻回するた
めに十分な強度および可とう性を有するものが望まし
い。したがって、合成樹脂フィルムや合成繊維からなる
織物、不織布シートが好適であり、より具体的には、ポ
リプロピレン、ナイロン、ポリエステル、アクリルの長
繊維不織布シートが好適である。Hereinafter, each structure of the present invention will be described in more detail. In the present invention, it is desirable that the sheet-shaped base material has sufficient strength and flexibility to be wound around a cable or the like. Therefore, a woven fabric or a non-woven fabric sheet made of a synthetic resin film or a synthetic fiber is preferable, and more specifically, a long-fiber non-woven fabric sheet of polypropylene, nylon, polyester, or acrylic is preferable.
【０００８】また、吸水樹脂帯に用いられる吸水性樹脂
は、粉末状あるいは粒状で、水と接触すると直ちに膨潤
して、優れた吸水能力を発揮するものが好ましい。例え
ば、アクリル酸塩系架橋物、酢酸ビニル・アクリル酸エ
ステル共重合体ケン化物、ポリビニルアルコール・無水
マレイン酸塩反応物、イソブチレン・マレイン酸共重合
体架橋物、アクリル酸塩・アクリルアミド共重合体、ポ
リエチレンオキサイド変性物などを挙げることができ
る。これらは、単体として、あるいは、数種類を混合し
て使用する。さらに、吸水性樹脂１ｇ当たり、１０ｍｌ
以上の水分を吸収するのが望ましい。Further, the water-absorbent resin used in the water-absorbent resin band is preferably powdery or granular and swells immediately upon contact with water and exhibits an excellent water-absorbing ability. For example, acrylate-based crosslinked product, saponified vinyl acetate / acrylic acid ester copolymer, polyvinyl alcohol / maleic anhydride reaction product, isobutylene / maleic acid copolymer crosslinked product, acrylate / acrylamide copolymer, Examples thereof include polyethylene oxide modified products. These are used alone or in combination of several kinds. Furthermore, 10 ml per 1 g of water-absorbent resin
It is desirable to absorb the above moisture.
【０００９】前述の吸水性樹脂と混合するバインダとし
ては、吸水樹脂帯をシート状基材に密着させ、吸水樹脂
帯の脱落を防止する働きを有する。この様なバインダと
しては、合成樹脂または合成ゴムからなるものが好まし
く、具体的には、アクリル系樹脂、ポリウレンタン系樹
脂、不飽和ポリエステル樹脂、エチレン系共重合体樹
脂、ポリアマイド樹脂、シリコーン樹脂、ポリイソブチ
レン、ブチルゴム、アクリルゴム、エチレン・プロピレ
ンゴム、シリコーンゴムなどが好適である。As a binder to be mixed with the above-mentioned water-absorbent resin, the water-absorbent resin band is brought into close contact with the sheet-like base material to prevent the water-absorbent resin band from falling off. As such a binder, those made of synthetic resin or synthetic rubber are preferable, and specifically, acrylic resin, polyurethane resin, unsaturated polyester resin, ethylene copolymer resin, polyamide resin, silicone resin, poly Isobutylene, butyl rubber, acrylic rubber, ethylene / propylene rubber, silicone rubber and the like are preferable.
【００１０】そして、その配合量は、前述のバインダ１
００重量部に対し、吸水性樹脂２０〜２０００重量部が
好ましい。配合量が２０重量部未満では、止水効果が十
分発揮されず、２０００重量部を越えると基材から吸水
性樹脂が脱落するおそれがある。The blending amount is the same as that of the binder 1 described above.
20 to 2000 parts by weight of the water absorbent resin is preferable with respect to 00 parts by weight. If the blending amount is less than 20 parts by weight, the water blocking effect is not sufficiently exhibited, and if it exceeds 2000 parts by weight, the water absorbent resin may fall off from the substrate.
【００１１】吸水性樹脂およびバインダ以外に吸水樹脂
帯に配合されるものとしては、バインダを溶解するため
の有機溶剤やシート状基材との接着性を向上させるため
の熱可塑性樹脂、その他、架橋剤、加硫剤、防錆剤、湿
潤剤、難燃剤などが考えられる。In addition to the water-absorbent resin and the binder, those which are mixed in the water-absorbent resin band include an organic solvent for dissolving the binder, a thermoplastic resin for improving the adhesiveness with the sheet-like base material, and other crosslinking agents. Agents, vulcanizing agents, rust preventives, wetting agents, flame retardants, etc. are considered.
【００１２】本発明の吸水樹脂帯は、前述のような材料
からなる樹脂をシート状基材の長手方向に間欠的に塗布
することにより、吸水樹脂帯と吸水樹脂が付着していな
い部分とが交互に設けられ、丁度、縞模様（ゼブラ模
様）状となるように構成される。In the water-absorbent resin band of the present invention, the resin made of the above-mentioned material is intermittently applied in the longitudinal direction of the sheet-like base material so that the water-absorbent resin band and the part to which the water-absorbent resin is not adhered are separated from each other. They are provided alternately and are configured to have a striped pattern (zebra pattern).
【００１３】本発明において、シート状基材の片面また
は両面に設けられる吸水樹脂帯上に、前述のシート状基
材に用いられる材質とほぼ同様の材質からなり、かつ、
水分の透過性、浸透性に優れた、カバー材が貼り付けら
れても良い。吸水樹脂帯をカバー材で覆うことにより、
ケーブルなどに巻回した時にシート状基材と吸水樹脂帯
とが重なりあってしまう箇所の接着を防止し、さらに、
止水テープを巻回する際の作業性を向上させることがで
きる。In the present invention, on the water-absorbent resin band provided on one side or both sides of the sheet-shaped substrate, the same material as the above-mentioned sheet-shaped substrate is used, and
A cover material having excellent moisture permeability and permeability may be attached. By covering the water absorbent resin band with a cover material,
Prevents adhesion of parts where the sheet-shaped base material and the water-absorbent resin band overlap when wound around a cable, etc.
The workability when winding the waterproof tape can be improved.
【００１４】本第２の発明の光ファイバケーブルは、前
述のような止水テープを押え巻き層に用いたことを要旨
とする。ここでいう、押え巻き層とは、スロット付スペ
ーサ型、グルーブ型、マルチスロット型などの光ファイ
バケーブルの光ファイバコアより外周かつシースより内
周に位置し、止水テープを縦添え巻または横巻きまたは
らせん状に巻回して形成した層を示す。しかしながら、
前に挙げた形状の光ファイバケーブルにとくに限定され
るものではない。The gist of the optical fiber cable of the second invention is that the water blocking tape as described above is used for the pressing and winding layer. Here, the presser winding layer is located on the outer circumference of the optical fiber core of a spacer type with a slot, groove type, multi-slot type, etc. and the inner circumference of a sheath, and a waterproof tape is attached vertically or horizontally. A layer formed by winding or spirally winding is shown. However,
It is not particularly limited to the optical fiber cable having the above-mentioned shape.
【００１５】[0015]
【発明の実施の形態】図１，２に、本発明の止水テープ
１０の好ましい実施の一形態を示す。ポリエステル樹脂
の不織布シートからなるシート状基材１１に、粒状のア
クリル酸塩からなる吸水性樹脂とブチルゴムからなるバ
インダなどを混合してなる樹脂を塗布乾燥して、不連続
な複数の吸水樹脂帯１２…，１３…を設けた。1 and 2 show a preferred embodiment of a water blocking tape 10 of the present invention. A sheet-like base material 11 made of a non-woven polyester resin sheet is coated with a resin obtained by mixing a water-absorbent resin made of granular acrylate and a binder made of butyl rubber, and dried to form a plurality of discontinuous water-absorbent resin bands. 12 ..., 13 ... are provided.
【００１６】また、図３，４に本発明の光ファイバケー
ブルのうちスロット型の一例を示す。図５との同一部材
には、同一符号を付す。中央にテンションメンバ１を配
置するスロット付スペーサ３には、６本のらせん状の溝
部２が設けられ、この溝部２には、積層されたテープ心
線４または介在５およびメタル介在対６が配置されてい
る。このスロット付スペーサ３の外周には、吸水樹脂帯
を備えた止水テープ１０が基材を外側とするようにらせ
ん状（図３）または縦添え（図４）に巻回され、押え巻
き層７を構成する。押え巻き層７の外周にはシース８が
設けられている。FIGS. 3 and 4 show an example of the slot type of the optical fiber cable of the present invention. The same members as those in FIG. 5 are designated by the same reference numerals. The slotted spacer 3 for arranging the tension member 1 in the center is provided with six spiral groove portions 2, in which the laminated tape core wire 4 or the interposition 5 and the metal interposition pair 6 are disposed. Has been done. On the outer periphery of the slotted spacer 3, a water blocking tape 10 having a water absorbing resin band is spirally wound (FIG. 3) or vertically attached (FIG. 4) so that the base material is on the outside, and a press winding layer is formed. Make up 7. A sheath 8 is provided on the outer circumference of the presser winding layer 7.
【００１７】この様な止水テープをスロット付スペーサ
型光ファイバケーブルに用いる場合には、吸水樹脂帯の
長さは、それぞれの長さについては特に限定されない
が、各吸水樹脂帯の長さの和、すなわち、各吸水樹脂帯
をｌ1 ，ｌ2 ‥‥ｌi とすると、その和Ｌは、以下の式
で表される。When such a water blocking tape is used in a spacer type optical fiber cable with a slot, the length of the water absorbing resin band is not particularly limited, but the length of each water absorbing resin band is not limited. Assuming that the sum, that is, each water-absorbent resin band is l 1 , l 2, ..., L i , the sum L is represented by the following formula.
【００１８】[0018]
【式１】 そして、スペーサの溝部が一周したとき（１ピッチ）の
スペーサの長さをａとすると、吸水樹脂帯の長さの和Ｌ
とスペーサ１ピッチの長さａとの関係は、０．４ａ≦Ｌ
≦０．８５ａを満たすのが好ましい。その理由は、Ｌが
０．４ａ未満の場合は、吸水性能が十分ではなく、押え
巻き層として巻回したときにしわが発生するおそれがあ
り、Ｌが０．８５ａを越えても吸水性能がそれ以上向上
しないにもかかわらずコスト高となるという欠点があ
る。さらに好ましい範囲は、０．５ａ≦Ｌ≦０．７５ａ
である。その理由は、スロット付スペーサの各溝部に対
し、少なくとも一部は吸水樹脂帯表面が接触するため、
吸水性能が著しく変化しないためである。また、本発明
では、スロット付スペーサの１ピッチ分の長さに配置さ
れる吸水樹脂帯は単数でも複数でも良い。(Equation 1) When the length of the spacer when the groove portion of the spacer makes one round (1 pitch) is a, the sum L of the lengths of the water-absorbent resin bands is L.
And the length a of one spacer pitch is 0.4a ≦ L
It is preferable to satisfy ≦ 0.85a. The reason is that if L is less than 0.4a, the water absorption performance is not sufficient, and wrinkles may occur when wound as a press-winding layer, and even if L exceeds 0.85a, the water absorption performance may decrease. However, there is a drawback that the cost becomes high even though it is not improved. A more preferable range is 0.5a ≦ L ≦ 0.75a.
It is. The reason is that at least a part of the groove of the slotted spacer is in contact with the surface of the water-absorbing resin band,
This is because the water absorption performance does not change significantly. Further, in the present invention, the number of the water-absorbent resin bands arranged in the length of one pitch of the spacers with slots may be single or plural.
【００１９】[0019]
［実施例１〜５、比較例１〜５］ポリエステル樹脂製の
不織布シートからなるシート状基材の片面に、粉末状の
アクリル酸塩からなる吸水性樹脂７０重量部に対し、ブ
チルゴムからなるバインダ３０重量部を混合したものを
塗布し、縞状の吸水樹脂帯を形成した。この様な止水テ
ープを１００心タイプスロット型ケーブルの外径１０ｍ
ｍのスロット付スペーサ外周にシート状基材が外側とな
るように巻回して押え巻き層とし、さらにシースを設け
て外径１６ｍｍとした。スペーサの溝部のピッチは５０
０ｍｍであり、止水テープの吸水樹脂帯の長さ、幅は表
１の通りとした。[Examples 1 to 5 and Comparative Examples 1 to 5] On one side of a sheet-shaped substrate made of a polyester resin non-woven sheet, 70 parts by weight of a water-absorbent resin made of powdery acrylate, and a binder made of butyl rubber. A mixture of 30 parts by weight was applied to form a striped water-absorbent resin band. Such a waterproof tape is used for the 100 core type slot type cable with an outer diameter of 10 m.
The sheet-shaped base material was wound around the outer periphery of the slotted spacer of m to form a press-winding layer, and a sheath was further provided to have an outer diameter of 16 mm. Spacer groove pitch is 50
The length and width of the water-absorbent resin band of the water blocking tape are as shown in Table 1.
【００２０】これらの実施例および比較例の止水テープ
について、Ｌ型走水試験を行った。Ｌ型走水試験とは、
透明のパイプの一方にＬ字型接続管を接続し、さらにＬ
字型接続管の先端に約７ｍの長さの止水テープを遮水テ
ープを用いて固定する。そして、透明パイプを鉛直に立
て、着色人工海水を常時高さ１ｍとなるまで入れ、２４
時間放置した後の走水長さを測定した。An L-type water running test was conducted on the water blocking tapes of these Examples and Comparative Examples. What is the L-type running test?
Connect an L-shaped connecting pipe to one of the transparent pipes, and
A water-blocking tape with a length of about 7 m is fixed to the tip of the letter-shaped connecting pipe with water-blocking tape. Then, a transparent pipe is erected vertically, and colored artificial seawater is constantly added until it reaches a height of 1 m.
The running water length was measured after standing for a while.
【００２１】[0021]
【表１】 吸水樹脂帯の長さの和Ｌが０．４ａ≦Ｌ≦０．８５ａの
範囲内にある実施例１〜５は十分な吸水性能を示してお
り、Ｌ＞０．８５ａの比較例２，４，５も十分な吸水性
能を有するが、吸水樹脂帯が増加している割には吸水性
能は増加していない。Ｌ＜０．４ａの比較例１および３
は、押え巻き層にしわが発生し、吸水性能も十分とはい
えない。[Table 1] Examples 1 to 5 in which the sum L of the lengths of the water absorbent resin bands is within the range of 0.4a ≦ L ≦ 0.85a show sufficient water absorbing performance, and Comparative Examples 2 and 4 with L> 0.85a. , 5 also have sufficient water absorption performance, but the water absorption performance does not increase in spite of the increase in the water absorbent resin band. Comparative Examples 1 and 3 with L <0.4a
However, wrinkles occur in the presser wound layer and the water absorption performance is not sufficient.
【００２２】[0022]
【発明の効果】本発明の止水テープは、単位長さ当たり
の吸水性樹脂量を削減したため、吸水性能は低下させず
に、コストを低下させることができる。また、この様な
止水テープを光ファイバケーブルの押え巻き層に用いる
ことにより、外観不良の発生が少なく、品質の安定した
光ファイバケーブルを提供する事ができる。EFFECTS OF THE INVENTION Since the water-stop tape of the present invention reduces the amount of water-absorbent resin per unit length, it is possible to reduce the cost without lowering the water-absorbing performance. Further, by using such a water blocking tape for the pressing and winding layer of the optical fiber cable, it is possible to provide an optical fiber cable of which quality is stable and whose quality is stable.
【図１】 本発明の止水テープの一例を示す図。FIG. 1 is a diagram showing an example of a water blocking tape of the present invention.
【図２】 本発明の止水テープの一例を示す図。FIG. 2 is a view showing an example of the water blocking tape of the present invention.
【図３】 本発明の光ファイバケーブルの一例を示す
図。FIG. 3 is a diagram showing an example of an optical fiber cable of the present invention.
【図４】 本発明の光ファイバケーブルの一例を示す
図。FIG. 4 is a diagram showing an example of an optical fiber cable of the present invention.
【図５】 スロット型光ファイバケーブルの断面図。FIG. 5 is a sectional view of a slot type optical fiber cable.
１０……止水テープ １１……シート状基材 １２，１３……吸水樹脂帯 10 ... Water-stop tape 11 ... Sheet-shaped substrate 12, 13 ... Water-absorbent resin band
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ３２Ｂ 27/12 Ｂ３２Ｂ 27/12 (72)発明者 塩野 武男 神奈川県川崎市川崎区小田栄２丁目１番１ 号 昭和電線電纜株式会社内 (72)発明者 中村 宏 神奈川県川崎市川崎区小田栄２丁目１番１ 号 昭和電線電纜株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Reference number within the agency FI Technical display location B32B 27/12 B32B 27/12 (72) Inventor Takeo Shiono 2-chome Oda Sakae, Kawasaki-ku, Kanagawa Prefecture No. 1-1 No. 1 Showa Cable Denki Co., Ltd. (72) Inventor Hiroshi Nakamura No. 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Showa Densen Denki Co., Ltd.
Claims (3)
樹脂とバインダとを混合した樹脂を長手方向に間欠的に
塗布することにより複数の吸水樹脂帯を設けたことを特
徴とする止水テープ。1. A stop characterized in that a plurality of water-absorbent resin bands are provided on one or both sides of a sheet-shaped substrate by intermittently applying a resin in which a water-absorbent resin and a binder are mixed in the longitudinal direction. Water tape.
用いたことを特徴とする光ファイバケーブル。2. An optical fiber cable in which the water blocking tape according to claim 1 is used for a press winding layer.
よる押え巻き層を有する光ファイバケーブルにおいて、 前記止水テープが、シート状基材の片面または両面に、
吸水性樹脂とバインダとを混合した樹脂を長手方向に間
欠的に塗布することにより複数の吸水樹脂帯を設けたも
のであって、かつ、前記吸水樹脂帯の長さの和Ｌと、前
記スロット付スペーサの１ピッチの長さをａとが、０．
４ａ≦Ｌ≦０．８５ａであることを特徴とする光ファイ
バケーブル。3. An optical fiber cable having a holding winding layer made of a waterproof tape on the outer circumference of a spacer with a slot, wherein the waterproof tape is provided on one or both sides of a sheet-shaped substrate.
A plurality of water-absorbent resin bands are provided by intermittently applying a resin in which a water-absorbent resin and a binder are mixed in the longitudinal direction, and the sum L of the lengths of the water-absorbent resin bands and the slot are provided. The length of one pitch of the attached spacer is a.
An optical fiber cable, wherein 4a ≦ L ≦ 0.85a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312287A JPH09152535A (en) | 1995-11-30 | 1995-11-30 | Water-stopping tape and optical fiber cable using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312287A JPH09152535A (en) | 1995-11-30 | 1995-11-30 | Water-stopping tape and optical fiber cable using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09152535A true JPH09152535A (en) | 1997-06-10 |
Family
ID=18027439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7312287A Pending JPH09152535A (en) | 1995-11-30 | 1995-11-30 | Water-stopping tape and optical fiber cable using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09152535A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548681A1 (en) * | 1995-12-23 | 1997-06-26 | Pegulan Tarkett Ag | Process for the production and multi-layer coverings based on polyolefin with foamed intermediate layers |
| US6847768B2 (en) | 2002-09-06 | 2005-01-25 | Corning Cable Systems Llc | Optical fiber tube assembly having a plug |
| US6970629B2 (en) | 2002-12-19 | 2005-11-29 | Corning Cable Systems Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7177507B2 (en) | 2002-12-19 | 2007-02-13 | Corning Cable Systems, Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7231119B2 (en) | 2002-12-19 | 2007-06-12 | Corning Cable Systems, Llc. | Dry fiber optic assemblies and cables |
| US7254303B2 (en) | 2004-03-23 | 2007-08-07 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US7254302B2 (en) | 2002-12-19 | 2007-08-07 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US7277615B2 (en) | 2002-12-19 | 2007-10-02 | Corning Cable Systems, Llc. | Fiber optic cable having a dry insert and methods of making the same |
| DE10129772B4 (en) * | 2001-06-20 | 2007-10-11 | CCS Technology, Inc., Wilmington | Optical transmission element |
| US7336873B2 (en) | 2002-12-19 | 2008-02-26 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US7471861B2 (en) | 2001-06-20 | 2008-12-30 | Corning Cable Systems Llc | Optical transmission element |
| US7471862B2 (en) | 2002-12-19 | 2008-12-30 | Corning Cable Systems, Llc | Dry fiber optic cables and assemblies |
| JP2009092832A (en) * | 2007-10-05 | 2009-04-30 | Furukawa Electric Co Ltd:The | Optical fiber cable, and manufacturing method for optical fiber cable |
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1995
- 1995-11-30 JP JP7312287A patent/JPH09152535A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548681A1 (en) * | 1995-12-23 | 1997-06-26 | Pegulan Tarkett Ag | Process for the production and multi-layer coverings based on polyolefin with foamed intermediate layers |
| DE19548681C2 (en) * | 1995-12-23 | 1998-01-22 | Pegulan Tarkett Ag | Process for the production of foamed layers from polyolefin on calenders |
| US5763501A (en) * | 1995-12-23 | 1998-06-09 | Tarkett Aktiengesellschaft | Process for the production of multi-layer constructed coverings based on polyolefins with foamed intermediate layers |
| DE10165020B4 (en) * | 2001-06-20 | 2009-04-23 | CCS Technology, Inc., Wilmington | Optical transmission element |
| US7471861B2 (en) | 2001-06-20 | 2008-12-30 | Corning Cable Systems Llc | Optical transmission element |
| US7349607B2 (en) | 2001-06-20 | 2008-03-25 | Corning Cable Systems Technology Incorporated | Optical transmission element |
| DE10129772B4 (en) * | 2001-06-20 | 2007-10-11 | CCS Technology, Inc., Wilmington | Optical transmission element |
| US6847768B2 (en) | 2002-09-06 | 2005-01-25 | Corning Cable Systems Llc | Optical fiber tube assembly having a plug |
| US7277615B2 (en) | 2002-12-19 | 2007-10-02 | Corning Cable Systems, Llc. | Fiber optic cable having a dry insert and methods of making the same |
| US7471862B2 (en) | 2002-12-19 | 2008-12-30 | Corning Cable Systems, Llc | Dry fiber optic cables and assemblies |
| US7751666B2 (en) | 2002-12-19 | 2010-07-06 | Corning Cable Systems Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7236670B2 (en) | 2002-12-19 | 2007-06-26 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US7336873B2 (en) | 2002-12-19 | 2008-02-26 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US7231119B2 (en) | 2002-12-19 | 2007-06-12 | Corning Cable Systems, Llc. | Dry fiber optic assemblies and cables |
| US7177507B2 (en) | 2002-12-19 | 2007-02-13 | Corning Cable Systems, Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7254302B2 (en) | 2002-12-19 | 2007-08-07 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US6970629B2 (en) | 2002-12-19 | 2005-11-29 | Corning Cable Systems Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7747117B2 (en) | 2002-12-19 | 2010-06-29 | Corning Cable Systems Llc | Optical tube assembly having a dry insert and methods of making the same |
| US7693375B2 (en) | 2002-12-19 | 2010-04-06 | Corning Cable Systems Llc | Fiber optic cable having a dry insert |
| US7254303B2 (en) | 2004-03-23 | 2007-08-07 | Corning Cable Systems, Llc. | Optical tube assembly having a dry insert and methods of making the same |
| US9494755B2 (en) | 2005-07-29 | 2016-11-15 | Corning Optical Communications LLC | Fiber optic cable assembly |
| US9971101B2 (en) | 2005-07-29 | 2018-05-15 | Corning Optical Communications LLC | Fiber optic cable assembly |
| JP2009092832A (en) * | 2007-10-05 | 2009-04-30 | Furukawa Electric Co Ltd:The | Optical fiber cable, and manufacturing method for optical fiber cable |
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