JPH01207378A - Water stopping tape - Google Patents
Water stopping tapeInfo
- Publication number
- JPH01207378A JPH01207378A JP63033216A JP3321688A JPH01207378A JP H01207378 A JPH01207378 A JP H01207378A JP 63033216 A JP63033216 A JP 63033216A JP 3321688 A JP3321688 A JP 3321688A JP H01207378 A JPH01207378 A JP H01207378A
- Authority
- JP
- Japan
- Prior art keywords
- water
- absorbing
- tape
- swelling
- soluble resin
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 26
- 230000008961 swelling Effects 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 34
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 abstract description 19
- 239000000126 substance Substances 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- -1 polyethylene terephthalate Polymers 0.000 abstract description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 5
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 229920000578 graft copolymer Polymers 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- 239000012298 atmosphere Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004349 Polyvinylpyrrolidone-vinyl acetate copolymer Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- CYKDLUMZOVATFT-UHFFFAOYSA-N ethenyl acetate;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=O)OC=C CYKDLUMZOVATFT-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 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
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019448 polyvinylpyrrolidone-vinyl acetate copolymer Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Sealing Material Composition (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、止水テープに関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a water stop tape.
〔従来の技術］
止水テープは、通信ケーブル内の止水等の各種の用途に
用いられている。最近では、光ファイバが、通信に用い
られるようになってきており、この光フアイバケーブル
の止水用としても注目を集めてきている。一般に光フア
イバケーブルにおいてはケーブルの障害のほとんどはケ
ーブル内への浸水によるのであり、光フアイバ強度の劣
化、凍結による伝送特性の劣化等の悪現象をもたらす。[Prior Art] Water stop tapes are used for various purposes such as water stop within communication cables. Recently, optical fibers have come to be used for communication, and the use of optical fiber cables for water-stopping has also attracted attention. In general, most cable failures in optical fiber cables are caused by water intrusion into the cable, resulting in adverse phenomena such as deterioration of optical fiber strength and deterioration of transmission characteristics due to freezing.
このため、光フアイバケーブル内に光ファイバと共に吸
水膨潤物質を備えた止水テープを配設することが行われ
ている。上記止水テープとしては、たとえば、プラスチ
ックフィルム等の表面および裏面に、ポリアクリル酸塩
等の高分子電解質の吸水膨潤物質の粉末を含有させたパ
ルプ繊維等からなる吸水層を形成したものが挙げられる
。この止水テープは、上記ポリアクリル酸塩が優れた吸
水膨潤性を奏するため、光フアイバケーブル内における
浸水時にケーブル内に侵入した水と接触して膨潤するこ
とにより浸水個所を塞ぎ、優れた止水作用を発揮する。For this reason, a water-stop tape having a water-absorbing and swelling substance is disposed in the optical fiber cable together with the optical fiber. Examples of the above-mentioned water-stop tape include those in which a water-absorbing layer made of pulp fibers containing powder of a water-absorbing swelling substance of a polymer electrolyte such as polyacrylate is formed on the front and back surfaces of a plastic film, etc. It will be done. This water-stop tape has excellent water-absorbing and swelling properties of the above-mentioned polyacrylate, so when water enters the optical fiber cable, it swells when it comes into contact with the water that has entered the cable, sealing the water-inundated area and providing excellent water-stopping properties. Exercises water action.
しかしながら、上記止水テープは、その保管時における
吸湿により相互に付着するという難点を有している。す
なわら、上記止水テープは、巻き取りボビンの外周に巻
回されて保管されるものであるが、梅雨時において、吸
湿し相互に付着するため、ボビンから引き出し光ファイ
バと共に組み合わせて吸水ケーブル内に連続的に配挿す
る際、ボビン上における相互の付着により切断する等の
不都合を生じ、施工性に問題がある。However, the above-mentioned water-stop tapes have the disadvantage that they adhere to each other due to moisture absorption during storage. In other words, the above-mentioned water-stop tape is stored by being wound around the outer circumference of a winding bobbin, but during the rainy season, it absorbs moisture and sticks to each other, so it is pulled out from the bobbin and combined with optical fibers to form a water-absorbing cable. When the bobbin is continuously inserted into the bobbin, problems such as cutting occur due to mutual adhesion on the bobbin, which poses a problem in workability.
この発明はこのような事情に鑑みなされたもので、保管
時に吸湿して相互付着することのない止水テープの提供
をその目的とする。The present invention was made in view of the above circumstances, and an object of the present invention is to provide a water-stopping tape that does not absorb moisture and stick to each other during storage.
〔問題点を解決するための手段］
上記の目的を達成するため、この発明の止水テープは、
フィルム状柔軟基材の少なくとも一面に、吸水膨潤物質
層が形成され、この吸水膨潤物質層が吸湿時非粘着性の
水溶性樹脂皮膜で被覆されているという構成をとる。[Means for solving the problem] In order to achieve the above object, the water stop tape of the present invention has the following features:
A water-absorbing swelling material layer is formed on at least one surface of a film-like flexible base material, and this water-absorbing swelling material layer is coated with a water-soluble resin film that is non-tacky upon moisture absorption.
すなわち、この止水テープは、上記のように吸水膨潤物
質層が上記特性を有する水溶性樹脂皮膜で被覆されてい
るため、梅雨時等の高湿時には最外層の水溶性樹脂層の
作用により、吸水膨潤物質層の吸湿が防止される。した
がって、相互付着を生起することを抑制することができ
る。また、実際の上水時には、上記最外層の水溶性樹脂
層が水と接触して溶け、吸水膨潤層が水と接触し吸水膨
潤して止水作用を発揮する。したがって、上記水溶性樹
脂皮膜の存在により止水特性が損なわれることがない。In other words, in this water-stop tape, the water-absorbing and swelling material layer is coated with a water-soluble resin film having the above-mentioned characteristics, so that during high humidity such as during the rainy season, due to the action of the outermost water-soluble resin layer, Moisture absorption of the water-absorbing and swelling material layer is prevented. Therefore, mutual adhesion can be suppressed. In addition, when actually drinking water, the outermost water-soluble resin layer comes into contact with water and dissolves, and the water-absorbing swelling layer comes into contact with water and absorbs water and swells to exhibit a water-stopping effect. Therefore, the presence of the water-soluble resin film does not impair the water-stopping properties.
この発明の止水テープは、フィルム状柔軟基材と吸水膨
潤物質を用いた吸水膨潤物質層と吸湿時非粘着性の水溶
性樹脂からなる皮膜とを用いて構成される。The water-stop tape of the present invention is constructed using a film-like flexible base material, a water-absorbing swelling substance layer using a water-absorbing swelling substance, and a film made of a water-soluble resin that is non-tacky when moisture is absorbed.
上記フィルム状柔軟基材としては、ポリエチレンテレフ
タレートフィルム、ポリエチレンフィルム、塩化ビニル
樹脂フィルム等のプラスチックフィルムが挙げられる。Examples of the film-like flexible base material include plastic films such as polyethylene terephthalate film, polyethylene film, and vinyl chloride resin film.
しかしながら、柔軟性を有していれば、アルミ箔等の金
属箔を用いても差支えはない。特に、ポリエチレンテレ
フタレートフィルムを使用すると好結果が得られるよう
になる。However, there is no problem in using metal foil such as aluminum foil as long as it has flexibility. Particularly good results are obtained when polyethylene terephthalate film is used.
吸水膨潤物質層を形成する吸水膨潤物質としては、澱粉
、アクリロニトリルグラフト重合体の加水分解物、澱粉
−アクリロニトリル酸グラフト重合体の中和物、酢酸ビ
ニル−アクリル酸エステル共重合体の加水分解物または
これらの架橋体もしくはアクリルアミド共重合体の加水
分解物またはこれらの架橋体、ポリアクリル酸塩架橋体
、イソブチレン−無水マレイン酸共重合物架橋体があげ
られる。これらは単独で用いてもよいし、併用しても差
し支えはない。特に、ポリアクリル酸塩架橋体は優れた
膨潤性能を有し止水用途に汎用される。このような吸水
膨潤物質は、通常粉末状で使用される。そして、上記吸
水膨潤物質は、それ自体上記フィルム状柔軟基材に対す
る接着性を有しないため、エチレン−プロピレンゴム等
のゴムや、合成樹脂からなるバインダを用いて固められ
吸水膨潤物質層化される。この際、上記吸水膨潤物質と
バインダとの使用割合は、バインダ１００重量部（以下
「部」と略す）に対して、吸水膨潤物質が１００〜５０
０部になるように設定することが好結果をもたらす。そ
して、吸水膨潤物質層の表面摩擦抵抗を低くするため上
記ポリアクリル酸系吸水膨潤物質を、粒径５０μｍ以下
の粉末粒子状にして使用することが好ましい。このよう
にすることにより、例えば、光フアイバ４本を横１列に
並べた構造の止水テープ心線と止水テープとを光フアイ
バケーブル内に併置するような構造において、光フアイ
バケーブルに機械的、熱的外力が加わっても、光ファイ
バと止水テープがこすれる部分で光ファイバに加わる力
が小さくなり、伝送損失などの問題を発生し難くなる。The water-absorbing swelling material forming the water-absorbing swelling material layer includes starch, a hydrolyzate of an acrylonitrile graft polymer, a neutralized product of a starch-acrylonitrile acid graft polymer, a hydrolyzate of a vinyl acetate-acrylic acid ester copolymer, or These crosslinked products, hydrolyzed products of acrylamide copolymers, crosslinked products thereof, polyacrylate crosslinked products, and isobutylene-maleic anhydride copolymer crosslinked products are mentioned. These may be used alone or in combination. In particular, crosslinked polyacrylates have excellent swelling performance and are widely used for water-stop applications. Such water-absorbing and swelling substances are usually used in powder form. Since the water-absorbing swelling substance itself does not have adhesive properties to the film-like flexible base material, it is hardened using a binder made of rubber such as ethylene-propylene rubber or a synthetic resin to form a layer of the water-absorbing swelling substance. . At this time, the ratio of the water-absorbing swelling substance and binder used is 100 to 50 parts by weight of the water-absorbing swelling substance to 100 parts by weight (hereinafter abbreviated as "parts") of the binder.
Setting it so that it is 0 copies yields good results. In order to reduce the surface frictional resistance of the water-absorbing and swelling material layer, it is preferable to use the polyacrylic acid-based water-absorbing and swelling material in the form of powder particles with a particle size of 50 μm or less. By doing this, for example, in a structure in which a water-stop tape core wire of a structure in which four optical fibers are arranged horizontally in a row and a water-stop tape are placed side by side in an optical fiber cable, the machine can be attached to the optical fiber cable. Even if an external thermal force is applied, the force applied to the optical fiber is reduced at the portion where the optical fiber rubs against the water-stop tape, making it less likely that problems such as transmission loss will occur.
上記吸水膨潤層を被覆する水溶性樹脂皮膜に使用する水
溶性樹脂としては、吸湿時に粘着性を有さす、しかも、
水溶性であることが望まれる。このようなものとして、
ポリエチレンオキサイド。The water-soluble resin used for the water-soluble resin film that covers the water-absorbing swelling layer has adhesiveness when absorbing moisture, and
It is desired that it is water-soluble. As such,
Polyethylene oxide.
ポリエチレンイミン、ポリビニルアルコール、ポリアク
リルアミド、ポリビニルピロリドン−酢酸ビニル共重合
体および水溶性ナイロンが挙げられ、単独でもしくは併
せて用いられる。このような水溶性樹脂を用いて皮膜を
形成する場合に、あまり皮膜の厚みが厚くなりすぎると
、ケーブル浸水時等に迅速に溶解しにくくなり、また、
吸水膨潤物質層の表面に露呈する吸水膨潤物質粒子が隠
されるようになって表面摩擦係数の低減効果が小さくな
るため、通常皮膜の膜厚は３〜５０μｍ程度の厚みに設
定される。Examples include polyethyleneimine, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone-vinyl acetate copolymer, and water-soluble nylon, which may be used alone or in combination. When forming a film using such a water-soluble resin, if the film is too thick, it will be difficult to dissolve quickly when the cable is submerged in water, etc.
Since the water-absorbing-swelling substance particles exposed on the surface of the water-absorbing-swelling substance layer are hidden and the effect of reducing the surface friction coefficient is reduced, the thickness of the coating is usually set to about 3 to 50 μm.
この発明の止水テープは、上記の各原料を用い、つぎの
ようにして製造することができる。すなわち、前記吸水
膨潤物質と上記バインダとを粉体混合等によって混合し
、これを有機溶剤に溶解。The water stop tape of the present invention can be manufactured in the following manner using the above-mentioned raw materials. That is, the water-absorbing swelling substance and the binder are mixed by powder mixing or the like, and this is dissolved in an organic solvent.
分散させ、この溶液をポリエチレンテレフタレートフィ
ルム等のフィルム状柔軟基材の一面または両面に直接コ
ーティングすることによって、吸水膨潤物質層を形成す
る。つぎに、上記吸水膨潤物質層の表面に上記水溶性樹
脂の溶液を塗布し、乾燥させ、水溶性樹脂皮膜を形成す
る。このようにして得られた止水テープを第１図に示す
。図において、■はフィルム状柔軟基材、２は吸水膨潤
物質層、２ａは水溶性樹脂皮膜である。上記吸水膨潤物
質層２は、フィルム状基材１の片面だけに形成しても差
し支えはない。A layer of water-absorbing and swelling material is formed by dispersing the material and directly coating one or both surfaces of a film-like flexible substrate such as a polyethylene terephthalate film with this solution. Next, a solution of the water-soluble resin is applied to the surface of the water-absorbing and swelling material layer and dried to form a water-soluble resin film. The water stop tape thus obtained is shown in FIG. In the figure, ■ is a film-like flexible base material, 2 is a water-absorbing and swelling material layer, and 2a is a water-soluble resin film. The water-absorbing and swelling substance layer 2 may be formed only on one side of the film-like base material 1.
このようにして得られた止水テープは、光フアイバケー
ブルに使用される他、それ以外の通信ケーブル等の止水
用に使用される。しかしながら、光フアイバ用に使用す
るときには、第１図に示すフィルム用柔軟基材として、
厚みが１００μｍ程度のものを用い、それに設ける吸水
膨潤物質層の厚みを５０μｍ程度に設定し、かつ、水溶
性樹脂皮膜の膜厚を３〜５０μｍ程度に設定することが
効果の点で効果的である。The water stop tape thus obtained is used not only for optical fiber cables but also for water stop for other communication cables and the like. However, when used for optical fibers, as a flexible base material for films as shown in Figure 1,
It is effective to use a material with a thickness of about 100 μm, set the thickness of the water-absorbing swelling substance layer provided on it to about 50 μm, and set the thickness of the water-soluble resin film to about 3 to 50 μm. be.
このようにして得られた止水テープは、吸水膨潤物質層
が上記水溶性樹脂皮膜で被覆されているため、ボビン等
の外周に巻回されて保管される際、吸湿によって相互に
付着するということが生じない。したがって、施工性が
良好である。The water-stop tape obtained in this way has a layer of water-absorbing and swelling material coated with the above-mentioned water-soluble resin film, so when it is wound around the outer circumference of a bobbin and stored, it adheres to each other due to moisture absorption. Nothing happens. Therefore, the workability is good.
つぎに、実施例について比較例とあわせて説明する。Next, examples will be described together with comparative examples.
〔実施例１〜４．比較例〕
吸水膨潤物質として、後記の第１表に示す材料を用いる
と共に、バインダとして後記の第１表に示す材料を用い
、両材料を同表に示す割合で混合し、炭化水素県有ａ？
’ｆｉ剤に溶解した。これをポリエチレンテレフタレー
トフィルム（肉厚約１００μｍ）の両面に塗布し乾燥さ
せ、厚み約５０μｍの吸水膨潤物質層を形成した。他方
、後記の第１表に示す水溶性樹脂をアルコール系溶剤に
溶解して溶液化し、これを上記吸水膨潤物質層の表面に
塗布し厚み約１０μｍの水溶性樹脂皮膜を形成した。[Examples 1 to 4. Comparative Example] The materials shown in Table 1 below were used as the water-absorbing and swelling substance, and the materials shown in Table 1 below were used as the binder, and both materials were mixed in the proportions shown in the table. ?
'Dissolved in fi agent. This was applied to both sides of a polyethylene terephthalate film (thickness: about 100 μm) and dried to form a layer of water-absorbing and swelling material about 50 μm thick. On the other hand, a water-soluble resin shown in Table 1 below was dissolved in an alcohol-based solvent to form a solution, and this was applied to the surface of the water-absorbing and swelling material layer to form a water-soluble resin film with a thickness of about 10 μm.
このようにして得られた止水テープの吸水膨潤物質層の
吸水倍率を求め、後記の第１表に示すと共に、水溶性樹
脂皮膜で被覆された状態の吸水膨潤物質層の光フアイバ
テープ心線用樹脂との静摩擦係数および止水テープ相互
の粘着力を調べ後記の第１表に示した。The water absorption capacity of the water absorbing and swelling material layer of the water stop tape thus obtained was determined and shown in Table 1 below. The coefficient of static friction with the water-stopping resin and the adhesive force between the water-stopping tapes were investigated and shown in Table 1 below.
また、上記のようにして得られた止水テープにおける吸
水膨潤物質層の吸湿量を、上記止水テープを相対湿度５
０，６０．７０，８０．９０ＲＨ％の雰囲気に２４時間
入れ、その雰囲気下における飽和吸湿率％を調べ後記の
第２図に示した。In addition, the moisture absorption amount of the water-absorbing and swelling material layer in the water-stop tape obtained as described above was determined by comparing the water-stop tape with a relative humidity of 5
The samples were placed in an atmosphere of 0, 60.70, and 80.90 RH% for 24 hours, and the saturated moisture absorption percentage in that atmosphere was measured and shown in Figure 2 below.
（以下余白）
上記の表および第２図の曲線との対比から明らかなよう
に、実施例は比較例に比べて、吸水倍率は同程度である
が、高湿度雰囲気下における粘着力および摩擦係数なら
びに吸湿量が比較例に比べて大幅に低くなっており、梅
雨時等の高湿度雰囲気下においても相互付着が殆ど生じ
ないことがわかる。(Margins below) As is clear from the comparison with the table above and the curve in Figure 2, the examples have the same water absorption capacity as the comparative examples, but the adhesive strength and friction coefficient in a high humidity atmosphere Furthermore, the amount of moisture absorption is significantly lower than that of the comparative example, indicating that almost no mutual adhesion occurs even in a high humidity atmosphere such as during the rainy season.
以上のようにこの発明の止水テープは、吸水膨潤物質層
が吸湿時非粘着性の水溶性樹脂皮膜で被覆されているた
め、保管中において周囲が高湿度雰囲気になっても相互
付着を生じることがない。As described above, in the water-stop tape of the present invention, since the water-absorbing swelling material layer is coated with a water-soluble resin film that is non-adhesive when absorbing moisture, mutual adhesion occurs even when the surrounding area is in a high-humidity atmosphere during storage. Never.
したがって、例えばボビンの外周面に巻回して保管し、
必要に応じて引き出し、光ファイバ等と組み合わせて光
フアイバケーブル内に連続配挿する際、テープの相互付
着による切断等を生じず、施工性が極めてよくなる。Therefore, for example, when stored by winding it around the outer circumferential surface of a bobbin,
When the tape is pulled out as necessary and continuously inserted into an optical fiber cable in combination with an optical fiber, etc., there is no cutting due to mutual adhesion of the tapes, and workability is extremely improved.
第１図はこの発明の一実施例の構成図、第２図は止水テ
ープの飽和吸湿率線図、第３図は静摩擦係数測定説明図
、第４図は粘着力測定説明図である。
ｌ・・・フィルム状柔軟基材 ２・・・吸水膨潤物質層
２ａ・・・水溶性樹脂皮膜
特許出願人 住友電気工業株式会社
東海ゴム工業株式会社
代理人 弁理士 西 藤 征 彦
づへ１図
Ｄ
ｆＡ Ｊ （’１０）
、３ 図
（ａ） （ｂ）３４ 図FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a saturated moisture absorption rate diagram of a water stop tape, FIG. 3 is an explanatory diagram of static friction coefficient measurement, and FIG. 4 is an explanatory diagram of adhesive force measurement. l...Film-like flexible base material 2...Water-absorbing and swelling material layer 2a...Water-soluble resin film Patent applicant: Sumitomo Electric Industries, Ltd. Tokai Rubber Industries, Ltd. Agent Patent attorney Yukihiko Nishifuji 1 Figure D fA J ('10), 3 Figures (a) (b) 34 Figures
Claims (1)
潤物質層が形成され、この吸水膨潤物質層が吸湿時非粘
着性の水溶性樹脂皮膜で被覆されていることを特徴とす
る止水テープ。(1) A water-stop tape characterized in that a water-absorbing and swelling material layer is formed on at least one surface of a film-like flexible base material, and this water-absorbing and swelling material layer is covered with a water-soluble resin film that is non-adhesive when moisture is absorbed. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033216A JPH01207378A (en) | 1988-02-15 | 1988-02-15 | Water stopping tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033216A JPH01207378A (en) | 1988-02-15 | 1988-02-15 | Water stopping tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01207378A true JPH01207378A (en) | 1989-08-21 |
Family
ID=12380254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63033216A Pending JPH01207378A (en) | 1988-02-15 | 1988-02-15 | Water stopping tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01207378A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02207410A (en) * | 1989-02-03 | 1990-08-17 | Fukuoka Cloth Kogyo Kk | Water stop tape for cable |
| JPH0331390A (en) * | 1989-06-27 | 1991-02-12 | Asahi Chem Ind Co Ltd | Material for water shield and optical fiber cable |
| JP2010201630A (en) * | 2009-02-27 | 2010-09-16 | Kyodo Printing Co Ltd | Multilayer film containing desiccant and electronic device having the film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399611A (en) * | 1977-02-14 | 1978-08-31 | Kasei Co C I | Packing for water stoppage |
| JPS5599986A (en) * | 1979-01-25 | 1980-07-30 | Dainichi Seika Kogyo Kk | Method of preventing the leakage and immersion of water |
| JPS60212478A (en) * | 1984-04-09 | 1985-10-24 | C I Kasei Co Ltd | Water-stopping material dilatable with water |
-
1988
- 1988-02-15 JP JP63033216A patent/JPH01207378A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399611A (en) * | 1977-02-14 | 1978-08-31 | Kasei Co C I | Packing for water stoppage |
| JPS5599986A (en) * | 1979-01-25 | 1980-07-30 | Dainichi Seika Kogyo Kk | Method of preventing the leakage and immersion of water |
| JPS60212478A (en) * | 1984-04-09 | 1985-10-24 | C I Kasei Co Ltd | Water-stopping material dilatable with water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02207410A (en) * | 1989-02-03 | 1990-08-17 | Fukuoka Cloth Kogyo Kk | Water stop tape for cable |
| JPH0331390A (en) * | 1989-06-27 | 1991-02-12 | Asahi Chem Ind Co Ltd | Material for water shield and optical fiber cable |
| JP2010201630A (en) * | 2009-02-27 | 2010-09-16 | Kyodo Printing Co Ltd | Multilayer film containing desiccant and electronic device having the film |
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