JPH03176332A - Water-stopping tape and manufacture therefor - Google Patents
Water-stopping tape and manufacture thereforInfo
- Publication number
- JPH03176332A JPH03176332A JP1310714A JP31071489A JPH03176332A JP H03176332 A JPH03176332 A JP H03176332A JP 1310714 A JP1310714 A JP 1310714A JP 31071489 A JP31071489 A JP 31071489A JP H03176332 A JPH03176332 A JP H03176332A
- Authority
- JP
- Japan
- Prior art keywords
- water
- resin
- resin powder
- powder
- absorptive
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920005989 resin Polymers 0.000 claims abstract description 62
- 239000011347 resin Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 49
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000008961 swelling Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000002250 absorbent Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 230000002745 absorbent Effects 0.000 claims description 9
- 239000012943 hotmelt Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 5
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000011812 mixed powder Substances 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000806 elastomer Substances 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
- 239000004615 ingredient Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の産業上利用分野）
本発明は止水テープおよびその製造方法、さらに詳細に
は光フアイバケーブルに侵入した水を短時間に止水する
止水テープおよびその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field of the Invention) The present invention relates to a water-stopping tape and a method for producing the same, and more particularly, a water-stopping tape that quickly stops water entering an optical fiber cable and its production. Regarding the method.
（従来技術および問題点）
第１図は光フアイバケーブルの断面図であるが、この図
より明らかなように、中心にテンションメンバ１が挿通
されたスロットロッド２にテープ心線３を複数積層して
収納するスロット４を設けると共に、このスロットロッ
ド２を止水テープ５で捲回した後、さらにシース６を被
覆した構造になっている。(Prior Art and Problems) Fig. 1 is a cross-sectional view of an optical fiber cable, and as is clear from this figure, a plurality of tape core wires 3 are laminated on a slot rod 2 through which a tension member 1 is inserted. In addition, the slot rod 2 is wound with a water stop tape 5 and then covered with a sheath 6.
一般に光フアイバケーブルは、前述のようにシース６に
よって覆われているために、その内部に水が侵入するこ
とはないが、シース６が何らかの理由で破れたり、穴が
開いたりした時には、前記シース６の下部に捲回された
止水チー１５によって水を吸収するようになっている。Generally, optical fiber cables are covered with the sheath 6 as described above, so water does not enter into the inside of the cable. However, if the sheath 6 is torn or has a hole for some reason, the sheath Water is absorbed by a water stop tee 15 wound around the lower part of 6.
このような止水テープ５は、第２図に示すように基材５
１の片面に高吸水性樹脂粉末を含む水溶性樹脂層からな
る吸水層５２を設けた構造になっている。すなわち、水
溶性樹脂の有機溶剤溶液に高吸水性樹脂粉末を分散させ
ると共に基材５１の片面に塗布し、乾燥して製造された
ものであった。Such a water stop tape 5 has a base material 5 as shown in FIG.
1 has a structure in which a water absorbing layer 52 made of a water-soluble resin layer containing super absorbent resin powder is provided on one side. That is, it was manufactured by dispersing superabsorbent resin powder in an organic solvent solution of a water-soluble resin, coating it on one side of the base material 51, and drying it.
このような構造の吸水層５２においては、水が侵入して
きたときに、まず前記水溶性樹脂層より露出する高吸水
性樹脂が吸水膨潤すると共に、水溶性樹脂が溶解し、中
に埋設された高吸水性樹脂粉末を徐々に露出させ、露出
した前記高吸水性樹脂粉末が吸水膨潤することによって
止水するものである。In the water-absorbing layer 52 having such a structure, when water enters, the super-absorbent resin exposed from the water-soluble resin layer absorbs water and swells, and the water-soluble resin dissolves and is buried inside. The super absorbent resin powder is gradually exposed, and the exposed super absorbent resin powder absorbs water and swells, thereby stopping water.
上述のような水溶性樹脂層中に高吸水性樹脂粉末を分散
させた吸水層にあっては、まず第一に、最初に水が侵入
してきたときには、水溶性樹脂から露出するわずかの高
吸水性樹脂が機能するのみであるため、初期においては
吸水量が小さいという欠点がある。第二に水溶性樹脂が
溶解するまで若干の時間が費やされることになるため、
侵入した水を吸水し、膨潤することによって水の侵入を
止水するまでに時間がかかるという欠点がある。In a water-absorbing layer in which super-absorbent resin powder is dispersed in a water-soluble resin layer as described above, first of all, when water first enters, a small amount of super-absorbent water exposed from the water-soluble resin Since only the plastic resin functions, there is a drawback that the amount of water absorbed is small in the initial stage. Secondly, it takes some time for the water-soluble resin to dissolve.
It has the disadvantage that it takes time to stop water from entering because it absorbs water and swells.
このため、−度に多量の水が侵入した場合、第３図に示
すようにテープ心、！！３が収納されているスロット４
に水が侵入し、前記テープ心線３とスロット４の隙間を
水がケーブルの軸方向に流れる現象、いわゆる水走り現
象が生じる。For this reason, if a large amount of water enters the tape core, as shown in Figure 3, ! ! Slot 4 where 3 is stored
When water enters the cable, a phenomenon in which water flows in the axial direction of the cable through the gap between the tape core wire 3 and the slot 4, a so-called water running phenomenon, occurs.
（発明の目的）
本発明は上述の問題点に鑑みなされたものであり、速や
かに侵入した水を吸水すると共に、前記基材より吸水層
が離脱して、スロット内を埋め、水走りが生じないよう
にした止水テープおよびその製造方法を提供することを
目的とする。(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and the present invention quickly absorbs the water that has entered, and the water-absorbing layer separates from the base material to fill the inside of the slot, causing water running. An object of the present invention is to provide a water stop tape and a method for manufacturing the same.
（問題点を解決するための手段〉
上記問題点を解決するため、本発明による止水テープは
、基材の片面に熱溶融性樹脂粉末と高吸水性樹脂粉末の
混合物を含む吸水膨潤層を設けたことを特徴とする。(Means for Solving the Problems) In order to solve the above problems, the water-stop tape according to the present invention has a water-absorbing swelling layer containing a mixture of hot-melt resin powder and super-absorbent resin powder on one side of the base material. It is characterized by having been established.
本発明は上述のような止水テープを製造する方法も提供
するものであり、防水層を介し、又は介さずに熱溶融性
樹脂粉末と高吸水性樹脂粉末とを混合した混合物を基材
の片面に熱圧着したことを特徴とする。The present invention also provides a method for manufacturing a water-stop tape as described above, in which a mixture of hot-melt resin powder and super-absorbent resin powder is added to the base material with or without a waterproof layer. It is characterized by being heat-pressed on one side.
本発明による止水テープによれば、熱溶融性樹脂粉末と
高吸水性樹脂粉末よりなる混合粉末を熱圧着により設け
たため、すなわち初めから粉末状態であるため、水を速
やかに吸収し、かつ吸水膨潤する時間も短いという利点
がある。さらに混合粉末であるため、水が侵入したとき
、その圧力によりスロット内に容易に剥落し、水走りを
生じしめないという利点もある。According to the water-stop tape of the present invention, since the mixed powder consisting of a hot-melting resin powder and a highly water-absorbing resin powder is provided by thermocompression bonding, that is, it is in a powder state from the beginning, it quickly absorbs water and absorbs water. It also has the advantage of short swelling time. Furthermore, since it is a mixed powder, it has the advantage that when water enters, it easily falls off into the slot due to the pressure and does not cause water running.
本発明をさらに詳しく説明すると、本発明により使用さ
れる基材は、基本的に限定されるものではなく、従来こ
の種のテープ基材として使用されるものを有効に使用す
ることができる。たとえば不織布、紙、プラスチックフ
ィルムなどを有効に使用できる。To explain the present invention in more detail, the base material used in the present invention is not fundamentally limited, and those conventionally used as this type of tape base material can be effectively used. For example, nonwoven fabrics, paper, plastic films, etc. can be effectively used.
吸水層に使用される高吸水性樹脂は従来この種の止水テ
ープに使用されているものであれば基本的にいかなるも
のでもよい、たとえば澱粉、アクリロニトリルグラフト
重合体の加水分解物、澱粉アクリル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又はこれらの架橋体、逆
相懸濁液によってえられた自己架橋型ポリアクリル酸ナ
トリウム、ポリアクリル酸部分中和物架橋体、ポリエチ
レンオキサイド架橋体、インブチレン−マレイン酸共重
合体などが挙げられる。The super-absorbent resin used in the water-absorbing layer can basically be any resin that has been conventionally used in this type of water-stopping tape, such as starch, a hydrolyzate of acrylonitrile graft polymer, starch acrylonitrile, etc. Neutralized product of acid graft polymer, hydrolyzate of vinyl acetate-acrylic acid ester copolymer or crosslinked product of these or hydrolyzate of acrylamide copolymer or crosslinked product of these, obtained by reverse phase suspension. Examples include self-crosslinking sodium polyacrylate, crosslinked partially neutralized polyacrylic acid, crosslinked polyethylene oxide, and imbutylene-maleic acid copolymer.
このような高吸水性樹脂粉末の粒径は、好ましくは５０
〜１５０μｍであるのがよい、２０μｍ未満であると、
ままこになり易く、吸水速度が低下し、吸水力も小さい
、一方２５０μｍを越えると、吸水速度が遅くなり、コ
ーティングの時、筋が出る。The particle size of such super absorbent resin powder is preferably 50
~150 μm is preferable, less than 20 μm,
It tends to become lumpy, the water absorption rate decreases, and the water absorption power is also small. On the other hand, if it exceeds 250 μm, the water absorption rate decreases and streaks appear during coating.
このような高吸水性樹脂と混合される熱溶融性樹脂粉末
は前記高吸水性樹脂粉末をテープ基材に熱圧着により良
好に保持可能であり、かつ水が侵入したときに、容易に
剥落するような樹脂粉末である。このような樹脂粉末と
して、たとえばポリエステル、ポリアミド、ポリオレフ
ィンなど熱可塑性樹脂粉末が有効に使用することができ
る。The heat-melting resin powder mixed with such a super-absorbent resin can hold the super-absorbent resin powder well on a tape base material by thermocompression bonding, and easily peels off when water enters. It is a resin powder like that. As such resin powder, thermoplastic resin powder such as polyester, polyamide, polyolefin, etc. can be effectively used.
このような熱溶融性樹脂粉末は、好ましくは５０〜１５
０μｍの平均粒径であることが望ましい。Such hot melt resin powder preferably has a molecular weight of 50 to 15
An average particle size of 0 μm is desirable.
ＳＡＰ （高吸水性樹脂）の粒径と同じ位が均一分散の
点で望ましい。From the viewpoint of uniform dispersion, it is desirable that the particle size be the same as that of SAP (super absorbent polymer).
上述のような熱溶融性樹脂粉末と高吸水性樹脂粉末との
混合比率は、好ましくは１／１〜１／２であるのがよい
、１／１未満であると、水の侵入により、スロット内に
容易に剥落しない恐れがあり、一方１／２を越えると熱
圧着により高吸水性樹脂粉末をテープ基材に良好に保持
できず取り扱いが不便になる恐れがあり、また吸水速度
も速くならない。The mixing ratio of the above-mentioned hot melt resin powder and super absorbent resin powder is preferably 1/1 to 1/2. If it is less than 1/1, water may enter the slot. On the other hand, if it exceeds 1/2, the super absorbent resin powder may not be held well on the tape base material by thermo-compression bonding, making handling inconvenient, and the water absorption rate may not increase. .
上述のような熱溶融性樹脂粉末および高吸水性樹脂粉末
とで吸水層を形成するものであるが、このような吸水層
の嵩密度は好ましくは、０．７〜１．５ｇ／ｃｃである
のが好ましい、嵩密度が大きすぎると容易に剥落せず、
水走り防止効果が小さくなり、一方案密度が小さすぎる
と、運搬保存時に基材より高吸水性樹脂粉末が剥落する
恐れを生じるからである。A water-absorbing layer is formed with the above-mentioned hot-melt resin powder and super-absorbent resin powder, and the bulk density of such a water-absorbing layer is preferably 0.7 to 1.5 g/cc. If the bulk density is too large, it will not peel off easily,
This is because if the water running prevention effect becomes small and the draft density is too low, there is a risk that the superabsorbent resin powder will peel off from the base material during transportation and storage.
この吸水層の厚さは、好ましくは０．１〜０．５ｍｍで
ある。０．１ｍｍ未満であると、充分な止水効果を発揮
できない恐れがあり、一方０．５ｍｍを越えると、前記
吸水層が保存運搬時に剥落してしまう恐れを生じる。The thickness of this water absorption layer is preferably 0.1 to 0.5 mm. If it is less than 0.1 mm, there is a risk that a sufficient water-stopping effect may not be exhibited, while if it exceeds 0.5 mm, there is a risk that the water-absorbing layer will peel off during storage and transportation.
このような吸水層を設けた基材の面の反対の面および／
または吸水層の下部に防水層を設けることができる。こ
のように防水層を設けることによって止水性をさらに向
上させることができる。上述のような防水層としては、
たとえば、ゴム、エラストマー、プラスチックフィルム
などを挙げることができる。The surface opposite to the surface of the base material provided with such a water absorption layer and/or
Alternatively, a waterproof layer can be provided below the water absorption layer. By providing a waterproof layer in this manner, water-stopping properties can be further improved. As a waterproof layer as mentioned above,
For example, rubber, elastomer, plastic film, etc. can be mentioned.
本発明による止水テープの製造方法によれば、まず前述
の熱溶融性樹脂粉末と高吸水性樹脂粉末を混合する。こ
の混合粉末には種々の他の成分を添加することができる
のは明らかである。According to the method for manufacturing a water stop tape according to the present invention, first, the above-mentioned hot melt resin powder and super water absorbent resin powder are mixed. Obviously, various other ingredients can be added to this mixed powder.
上述のような混合粉末を基材に熱圧着する。熱圧着する
ことによって前記熱溶融性樹脂粉末が溶融し、基材と接
着する。The mixed powder as described above is thermocompressed onto a base material. By thermocompression bonding, the thermofusible resin powder is melted and adhered to the base material.
上述の熱圧着の温度は、好ましくは１００℃〜２００℃
であるのがよい、１００″Ｃ未満であるとＨＭ（熱溶融
性樹脂）の融点として、１００℃以下のものを選択する
必要があり、保存中ブロッキングする恐れがある。一方
２００℃を越えると、前記熱溶融樹脂粉末が強固に基材
に接着され、水の侵入の際に高吸水性樹脂が容易に剥落
しなくなる恐れがある。The temperature of the above thermocompression bonding is preferably 100°C to 200°C.
If it is less than 100"C, it is necessary to select a melting point of HM (thermal melt resin) of 100℃ or less, and there is a risk of blocking during storage. On the other hand, if it exceeds 200℃, , the hot-melting resin powder is firmly adhered to the base material, and there is a possibility that the super absorbent resin will not easily peel off when water enters.
また、熱圧着時間は好ましくはライン速度Ｌｍ／分〜１
０ｍ／分である。１０ｍ／分以上であると接着強度が小
さすぎ、１ｍ／分未満であると接着力が大きくなり過ぎ
て、容易に剥落しない恐れを生じる。In addition, the thermocompression bonding time is preferably a line speed of Lm/min to 1
0 m/min. If it is 10 m/min or more, the adhesive strength will be too low, and if it is less than 1 m/min, the adhesive strength will be too strong and there is a risk that it will not peel off easily.
さらに、熱圧着の圧力は、好ましくは７〜２０ｋｇ／ｃ
ｍ２であるのがよい、７ｋｇ／ｃｍ２未満であると、同
様に接着強度が小さすぎ、２０ ｋｇ／ｃｍ ２を越え
ると嵩密度が大きくなって、同様に浸水時に剥落しにく
くなる。Furthermore, the pressure of thermocompression bonding is preferably 7 to 20 kg/c.
m2 is preferable; if it is less than 7 kg/cm2, the adhesive strength will be too low, and if it exceeds 20 kg/cm2, the bulk density will increase and it will also be difficult to peel off when submerged in water.
以下実施例を説明する。Examples will be described below.
実施例 下記の組成の吸水層を不織布上に形成した。Example A water absorbing layer having the following composition was formed on a nonwoven fabric.
熱溶融性樹脂粉末
（ポリアミド）
粒径１００μｍ
５０重量部
高吸水性樹脂粉末
（イソ７゛チレンーマレイン酸共重合体）５０重量部
粒径１００μｍ
上記粉末を混合し、温度１４０℃、圧力１２Ｋｇ／ｃｍ
２の条件でライン速度１ｍ／分、不織布上に熱圧着した
。上記吸水層の嵩密度は０．９ｇ／ｃｍ２であり、厚さ
は０．２．５ ｍ ｍであった。このように製造された
止水テープを実施例１とし、防水層を設けたものを実施
例２とした。Heat-melting resin powder (polyamide) Particle size: 100 μm 50 parts by weight Super water-absorbent resin powder (iso7゛tyrene-maleic acid copolymer) 50 parts by weight Particle size: 100 μm The above powders were mixed and heated at a temperature of 140°C and a pressure of 12 kg/cm.
It was thermocompression bonded on the nonwoven fabric under the conditions of 2 at a line speed of 1 m/min. The bulk density of the water absorbing layer was 0.9 g/cm2, and the thickness was 0.2.5 mm. The water stop tape manufactured in this manner was designated as Example 1, and the tape provided with a waterproof layer was designated as Example 2.
比較例として、従来の高吸水性樹脂粉末を含む水溶性樹
脂層からなる吸水層の止水テープの結果を第１表に示す
。As a comparative example, Table 1 shows the results of a water-stop tape with a water-absorbing layer made of a water-soluble resin layer containing a conventional super-absorbent resin powder.
第１表
（発明の効果〉
本発明によれば、熱溶融性樹脂粉末と高吸水性樹脂粉末
よりなる混合粉末を熱圧着により設けたため、すなわち
初めから粉末状態であるため、水を速やかに吸収し、か
つ吸水膨潤する時間も短いという利点がある。さらに混
合粉末であるため、水が侵入したとき、その圧力により
スロット内に容易に剥落し、水走りを生じしめないとい
う利点もある。Table 1 (Effects of the Invention) According to the present invention, since the mixed powder consisting of a hot-melting resin powder and a highly water-absorbing resin powder is provided by thermocompression bonding, that is, it is in a powder state from the beginning, it absorbs water quickly. Furthermore, since it is a mixed powder, it has the advantage that when water enters, it easily falls off into the slot due to the pressure and does not cause water running.
第１図は光フアイバケーブルの断面図、第２図は止水テ
ープの構造を示す断面図、第３図は光フアイバケーブル
のスロット付近の拡大図である。
１・・・テンションメンバ、２・・・スロットロッド、
３・・・テープ心線、４・・・スロット、５・・・止水
テープ、５１・・・基材、５２・・・吸水層、６・・・
シース。
第１図
第２図
２
第３図FIG. 1 is a cross-sectional view of the optical fiber cable, FIG. 2 is a cross-sectional view showing the structure of the water-stop tape, and FIG. 3 is an enlarged view of the vicinity of the slot of the optical fiber cable. 1... Tension member, 2... Slot rod,
3... Tape core wire, 4... Slot, 5... Water stop tape, 51... Base material, 52... Water absorption layer, 6...
sheath. Figure 1 Figure 2 Figure 2 Figure 3
Claims (6)
末の混合物を含む吸水膨潤層を設けたことを特徴とする
止水テープ。(1) A water-stopping tape characterized in that a water-absorbing swelling layer containing a mixture of a hot-melt resin powder and a highly water-absorbing resin powder is provided on one side of a base material.
は１／１〜１／２であることを特徴とする特許請求の範
囲第１項記載の止水テープ。(2) The water stop tape according to claim 1, wherein the mixing ratio of the hot-melt resin powder and the super absorbent resin powder is 1/1 to 1/2.
ることを特徴とする特許請求の範囲第１項または第２項
記載のいずれかの止水テープ。(3) The water-stop tape according to claim 1 or 2, wherein the water-absorbing swelling layer has a thickness of 0.1 to 0.5 mm.
防水層を設けたことを特徴とする特許請求の範囲第１項
〜第３項記載のいずれかの止水テープ。(4) The water-stop tape according to any one of claims 1 to 3, characterized in that a waterproof layer is provided on the other surface of the base material or under the water-absorbing swelling layer.
高吸水性樹脂粉末とを混合した混合物を基材の片面に熱
圧着したことを特徴とする止水テープの製造方法。(5) A method for producing a water-stop tape, characterized in that a mixture of a hot-melt resin powder and a highly water-absorbent resin powder is thermocompression bonded to one side of a base material with or without a waterproof layer.
力は７〜２０ｋｇ／ｃｍ＾２、ライン速度は１ｍ／分〜
１０ｍ／分であることを特徴とする特許請求の範囲第５
項記載の止水テープの製造方法。(6) The temperature of the thermocompression bonding is 100~200℃, the pressure is 7~20kg/cm^2, and the line speed is 1m/min~
Claim 5 characterized in that the speed is 10 m/min.
The method for manufacturing the water stop tape described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1310714A JPH03176332A (en) | 1989-12-01 | 1989-12-01 | Water-stopping tape and manufacture therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1310714A JPH03176332A (en) | 1989-12-01 | 1989-12-01 | Water-stopping tape and manufacture therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03176332A true JPH03176332A (en) | 1991-07-31 |
Family
ID=18008592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1310714A Pending JPH03176332A (en) | 1989-12-01 | 1989-12-01 | Water-stopping tape and manufacture therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03176332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5925461A (en) * | 1994-06-02 | 1999-07-20 | Neptco, Incorporated | Water blocking composites and their use in cable manufacture |
| US6677394B1 (en) | 1996-12-18 | 2004-01-13 | Henkel Kommanditgesellschaft Auf Aktien | Swellable hotmelt adhesive |
| US6803400B1 (en) | 1998-12-23 | 2004-10-12 | Henkel Kommanditgesellschaft Auf Aktien | Water-swellable hot-melt-type adhesive |
-
1989
- 1989-12-01 JP JP1310714A patent/JPH03176332A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5925461A (en) * | 1994-06-02 | 1999-07-20 | Neptco, Incorporated | Water blocking composites and their use in cable manufacture |
| US6677394B1 (en) | 1996-12-18 | 2004-01-13 | Henkel Kommanditgesellschaft Auf Aktien | Swellable hotmelt adhesive |
| US6803400B1 (en) | 1998-12-23 | 2004-10-12 | Henkel Kommanditgesellschaft Auf Aktien | Water-swellable hot-melt-type adhesive |
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