JPH0473824A - Tracking resistant adhesive tape - Google Patents
Tracking resistant adhesive tapeInfo
- Publication number
- JPH0473824A JPH0473824A JP2184919A JP18491990A JPH0473824A JP H0473824 A JPH0473824 A JP H0473824A JP 2184919 A JP2184919 A JP 2184919A JP 18491990 A JP18491990 A JP 18491990A JP H0473824 A JPH0473824 A JP H0473824A
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- film
- thickness
- tape
- adhesive 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.)
- Granted
Links
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 20
- -1 polypropylene Polymers 0.000 claims abstract description 17
- 230000000052 comparative effect Effects 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 7
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000013032 Hydrocarbon resin Substances 0.000 claims abstract description 4
- 239000011737 fluorine Substances 0.000 claims abstract description 4
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 4
- 229920006270 hydrocarbon resin Polymers 0.000 claims abstract description 4
- 229920000306 polymethylpentene Polymers 0.000 claims abstract description 4
- 239000011116 polymethylpentene Substances 0.000 claims abstract description 4
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229920005672 polyolefin resin Polymers 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 22
- 239000010410 layer Substances 0.000 abstract description 14
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002985 plastic film Substances 0.000 abstract description 3
- 229920006255 plastic film Polymers 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 16
- 230000001070 adhesive effect Effects 0.000 description 16
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 239000003522 acrylic cement Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 229920006267 polyester film Polymers 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はトランス用巻線その他のコイルの層間に巻回し
て使用する耐トラッキング性粘着テープに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-tracking adhesive tape that is used by being wound between layers of transformer windings or other coils.
（従来の技術）
近来、機器の小型化、軽量化に伴い機器のＭｅ体表面に
作用する沿面ストレスが飛躍的に増加し、トランス用巻
線等の眉間絶縁として巻回して使用する粘着テープにお
いては、その耐トラッキング性の大幅な階級アップが要
求されている。(Prior art) In recent years, with the miniaturization and weight reduction of equipment, the creepage stress acting on the Me body surface of the equipment has increased dramatically. is required to significantly improve its tracking resistance.
従来、家電品におけるトランス巻線等の眉間絶縁には、
ポリエステル粘着テープ、バリアテープ（エポキシ含浸
／ポリエステル／ガラスクロス）が用いられているが、
これらの絶縁テープの耐トラッキング性は、ＩＥＣ法の
比較トラッキング指数（以下、ＣＴＩという）で評価す
れば、２５０〜４００ｖ未満の範囲である。而るに、近
来においては上記耐トラッキング性アップのために、Ｃ
ＴＩ値を４００ｖ以上にすることが要求されている。Conventionally, glabella insulation for transformer windings in home appliances, etc.
Polyester adhesive tape and barrier tape (epoxy-impregnated/polyester/glass cloth) are used, but
The tracking resistance of these insulating tapes is in the range of 250 to less than 400 V when evaluated by the comparative tracking index (hereinafter referred to as CTI) of the IEC method. However, in recent years, in order to improve the tracking resistance, C
It is required that the TI value be 400v or more.
（解決しようとする課題）
ところで、トランス巻線等の眉間に巻回して使用する粘
着絶縁テープにおいては、巻回時でのテープの、所謂「
おじぎ現象」を回避するために、相当に腰の強いテープ
を用いることが必要である。(Problem to be Solved) By the way, in the case of adhesive insulating tape that is used by being wound between the eyebrows of transformer windings, etc., the so-called "
In order to avoid the "bowing phenomenon", it is necessary to use a tape that is quite strong.
しかしながら、粘着ＭＡ縁テープの腰を強くするとテー
プの曲げ剛性が大となり、巻回したテープ自体の曲げ反
力が大きくなって、粘着＃＠縁テープの巻き終り端部に
おいて剥離が発生しやすい。However, if the stiffness of the adhesive MA edge tape is strengthened, the bending rigidity of the tape increases, and the bending reaction force of the wound tape itself becomes large, making it easy for peeling to occur at the end of the winding of the adhesive #@edge tape.
而るに、粘着絶縁テープの巻き終り端部は当該巻回層の
表面に存在し、トラッキング現象に嚇される可能性のあ
る場所であり、そのテープ巻き終り端部が剥離して浮き
上がれば、このテープ巻き終り端部を経る導電液（塩類
、粉塵或いはイオン性汚染物質を含んだ水分）付着漏洩
電流路のジュール発熱による断路がそのテープ巻き終り
端で生じ易い。この断路の瞬時に放電が生じ、この放電
がトラッキング初期の炭化を招来するから、粘着絶縁テ
ープの巻き終り端部の剥離は、Ｉ−ラッキング現象を惹
起する一原因となる。However, the winding end of the adhesive insulating tape exists on the surface of the wound layer and is likely to be subject to tracking phenomenon, and if the tape winding end peels off and floats up, The conductive liquid (moisture containing salts, dust, or ionic contaminants) attached to the conductive liquid (moisture containing salts, dust, or ionic contaminants) that passes through the end of the tape winding tends to cause a disconnection due to Joule heat generation at the end of the tape winding. Discharge occurs at the instant of this disconnection, and this discharge causes carbonization at the initial stage of tracking. Therefore, peeling of the end of the winding of the adhesive insulating tape is one of the causes of the I-racking phenomenon.
従来、トラッキングｌを抑制するために、絶縁材料自体
に耐トラッキング性に優れたものを使用すること、或い
は、絶縁材料に無機質粉末を混入することが行われてい
る。Conventionally, in order to suppress tracking l, it has been carried out to use an insulating material itself with excellent tracking resistance, or to mix inorganic powder into the insulating material.
しかしながら、 粘着絶縁テープの巻回によって絶縁し
た電気機器においては、単に、その絶縁テープに耐トラ
ッキング性に優れた材料を用いても、上記した粘着絶縁
テープ巻き終り端での剥離が生じると、機器自体の耐ト
ラッキング性の向上は達成できない。However, in electrical equipment insulated by winding adhesive insulating tape, even if the insulating tape is made of a material with excellent tracking resistance, if the above-mentioned adhesive insulating tape peels off at the end of the winding, the equipment will be damaged. The tracking resistance itself cannot be improved.
本発明の目的は、耐トラッキング性に優れた絶縁層を、
所謂、テープ巻同時の「おじぎ現象」を排除して容易に
形成できる耐トラッキング性粘着テープを提供すること
にある。The purpose of the present invention is to provide an insulating layer with excellent tracking resistance.
It is an object of the present invention to provide a tracking-resistant adhesive tape that can be easily formed by eliminating the so-called "bowing phenomenon" that occurs at the same time as tape winding.
（課題を解決するための手段）
本発明に係わる耐トラッキング性粘着テープはＩＥＣＥ
Ｃ上耐トラッキング験（ＩＥＣ１１２Ｖｅｒ３Ａ法）に
よる比較トラッキング指数が４００ｖ以上であって、弾
性率が２０〜１２００ｋｇ／ｍｎ”、厚みが５〜１５０
μｍの絶縁フィルムの裏面に粘着層を設けたことを特徴
とする構成である。(Means for Solving the Problems) The tracking-resistant adhesive tape according to the present invention is manufactured by IECE
The comparative tracking index according to the C top tracking test (IEC112 Ver3A method) is 400V or more, the elastic modulus is 20 to 1200 kg/mn'', and the thickness is 5 to 150
This structure is characterized by providing an adhesive layer on the back side of a μm insulating film.
上記ＩＥＣＥＣ上耐トラッキング験は、試験片に商用周
波数の一定電圧を印加し、その試験片に０．１％の塩化
アンモニウム水溶液を３０秒間隔で滴下し、試験片がト
ラッキング破壊するまでの滴下数を計測することによっ
て行い、ＣＴＩ値は滴下数が５０のときの破壊電圧が相
当する。In the above IECEC tracking resistance test, a constant commercial frequency voltage is applied to the test piece, and a 0.1% ammonium chloride aqueous solution is dropped onto the test piece at 30 second intervals, and the number of drops required until the test piece breaks tracking. The CTI value corresponds to the breakdown voltage when the number of drops is 50.
本発明において、弾性率を２０〜１２００ｋｇ／ｌＴｌ
ｆｆＩ２、テープ厚みを５〜１５０μｍの範囲とするの
は、この範囲の下限以下では、一般に、粘着テープ巻回
時に、所謂「おじぎ現象」が発生して、粘着テープの巻
回をスムーズに行い難く、また、上限以上では、粘着テ
ープの曲げ剛性が大となり、巻回した粘着テープの曲げ
反力が大きくなって、粘着テープの巻き終り端が剥離し
易くなるからである。In the present invention, the elastic modulus is 20 to 1200 kg/lTl.
ffI2, the tape thickness is set in the range of 5 to 150 μm because below the lower limit of this range, the so-called "bowing phenomenon" generally occurs when winding the adhesive tape, making it difficult to wind the adhesive tape smoothly. Moreover, if the pressure is above the upper limit, the bending rigidity of the adhesive tape becomes large, the bending reaction force of the wound adhesive tape becomes large, and the winding end of the adhesive tape becomes easy to peel off.
（実施例の説明） 以下、図面により本発明の詳細な説明する。(Explanation of Examples) Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図は本発明の一実施例を示す説明図である。FIG. 1 is an explanatory diagram showing one embodiment of the present invention.
第１図において、１はＣＴＩ値が４００Ｖ以上、弾性率
が２０〜１２００ｋｇ／ｍｎ＋２、厚みが５〜１５０μ
ｍのプラスチックフィルムであり、ポリプロピレン、ポ
リメチルペンテン等のポリオレフィン系樹脂、フッ化ビ
ニリデン、ポリテトラフルオロエチレン、エチレンテト
ラフルオロエチレンなどのフッ素系炭化水素樹脂、ブチ
ルゴム、ポリメチルメタクリレート等のフィルムを使用
できる。In Figure 1, 1 has a CTI value of 400V or more, an elastic modulus of 20-1200kg/mn+2, and a thickness of 5-150μ.
It is a plastic film made of polyolefin resins such as polypropylene and polymethylpentene, fluorine hydrocarbon resins such as vinylidene fluoride, polytetrafluoroethylene, and ethylenetetrafluoroethylene, butyl rubber, and polymethyl methacrylate. .
２は粘着層であり、合成樹脂系例えば、アクリル系、ゴ
ム系、シリコーン系粘着剤、又はこれらの粘着剤に難燃
剤を添加したものを使用できる。Reference numeral 2 is an adhesive layer, and a synthetic resin adhesive such as an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a flame retardant added to these adhesives can be used.
なお、上記プラスチックフィルム１の表面には粘着剤に
対する下地層のコーティングまたはコロナ放電処理等の
易接着処理を施してもよい。The surface of the plastic film 1 may be coated with a base layer for adhesive or subjected to adhesion-facilitating treatment such as corona discharge treatment.
第２図は本発明の別実施例を示している。FIG. 2 shows another embodiment of the invention.
第２図において、１はＣＴＩ値が４００ｖ以上の表層フ
ィルム１１と支持フィルム１２とを接着剤１３によって
積層してなる複合フィルムであり、この複合フィルムの
弾性率は２０〜１２００ｋｇ／ｌＴｌｍ２、厚みは５〜
１５０μｍである。２は粘着層である。In FIG. 2, 1 is a composite film formed by laminating a surface film 11 with a CTI value of 400 V or more and a support film 12 with an adhesive 13, and this composite film has an elastic modulus of 20 to 1200 kg/lTlm2 and a thickness of 5～
It is 150 μm. 2 is an adhesive layer.
上記表層フィルム１１には、ポリプロピレン以上の耐熱
性を有するポリオレフィン系樹脂、フッ化ビニリデン、
ポリテトラフルオロエチレン、エチレンテトラフルオロ
エチレンなどのフッ素系炭化水素樹脂の何れかのフィル
ムで、厚みが０．５〜８０ｉＬｍのものを使用すること
が好ましい。支持フィルム１２には、ポリエステル、ポ
リエチレンナフタレート、ポリフェニレンサルファイド
、ポリエーテルエテルケトン、ポリイミド、薄葉紙、或
いはエポキシ樹脂含浸ポリエステル不織布又はガラスク
ロスの何れかのフィルムで、厚みが１．５〜約１５０μ
ｍのものを使用できる。接着剤１３には、ポリメチルメ
タクリレート、ＥＥＡ、ＥＶＡ等のホットメルト接着剤
を使用でき、その厚みは０．１〜５０μｍとすることが
好ましい。The surface film 11 includes a polyolefin resin having a heat resistance higher than that of polypropylene, vinylidene fluoride,
It is preferable to use a film made of a fluorocarbon resin such as polytetrafluoroethylene or ethylenetetrafluoroethylene and having a thickness of 0.5 to 80 iLm. The support film 12 is a film of polyester, polyethylene naphthalate, polyphenylene sulfide, polyether ether ketone, polyimide, tissue paper, or epoxy resin-impregnated polyester nonwoven fabric or glass cloth, and has a thickness of 1.5 to about 150 μm.
m can be used. The adhesive 13 can be a hot melt adhesive such as polymethyl methacrylate, EEA, or EVA, and preferably has a thickness of 0.1 to 50 μm.
上記表面層の厚みを０．５〜８０μｍとする理由は、０
．５μｍ以上とすることがＣＴＩ値４００ｖ以上の耐ト
ラッキング性を保証するのに有利であり、また、８０１
Ｌｍ以下とすることが複合フィルムのカールを排除して
、テープの巻回作業性を保証するのに有利であるからで
ある。支持テープの厚みを１．５〜約１５０ＩＬｍとす
る理由は、１．５μｍ以上とすることがテープ巻回上必
要な機械的強度を保証するのに有利であり、また約１５
０μｍ以下とすることがテープの曲げ剛性に起因するテ
ープ巻き終り端での剥離を防止するのに有利であるから
である。接着剤の厚みを０．１〜５０μｍとする理由は
、０．１μｍ以上とすることが層間接着強度の保証に有
利であり、また、５０μｍ以下とすることがテープ全体
の厚みを１５０μｍ以下にするのに有利であるからであ
る。The reason why the thickness of the surface layer is set to 0.5 to 80 μm is that 0
．． Setting the thickness to 5 μm or more is advantageous in ensuring tracking resistance with a CTI value of 400 V or more, and
This is because setting it below Lm is advantageous in eliminating curling of the composite film and ensuring tape winding workability. The reason why the thickness of the support tape is set to 1.5 to about 150 ILm is that it is advantageous to set the thickness to 1.5 μm or more to ensure the mechanical strength necessary for tape winding, and about 150 ILm or more.
This is because setting the thickness to 0 μm or less is advantageous in preventing peeling at the end of the tape winding due to the bending rigidity of the tape. The reason why the thickness of the adhesive is set to 0.1 to 50 μm is that a thickness of 0.1 μm or more is advantageous in guaranteeing interlayer adhesive strength, and a thickness of 50 μm or less makes the entire tape thickness 150 μm or less. This is because it is advantageous.
第３図は本発明の他の実施例を示し、支持フィルム１２
の片面にＣＴＩ値が４００ｖ以上の絶縁コーティング層
１１を形成した複合フィルム１の他面に粘着層２を設け
てあり、複合フィルム１の弾性率は２０〜１２００ｋｇ
／ｒｒＩＩＴＩ２、厚みは５〜１５０μｍとしである。FIG. 3 shows another embodiment of the invention, in which the support film 12
A composite film 1 has an insulating coating layer 11 with a CTI value of 400V or more formed on one side, and an adhesive layer 2 is provided on the other side, and the elastic modulus of the composite film 1 is 20 to 1200 kg.
/rrIITI2, and the thickness is 5 to 150 μm.
この実施例における支持フィルム１２には上記第２図に
示す実施例と同一のものを使用できる。＃＠縁コーティ
ング層１１にはフッ素系樹脂ディスバージョンの塗布焼
結層を使用できる。 次ぎに、本発明に係わる耐トラッ
キング性粘着性テープの耐トラッキング試験結果につい
て説明する。The support film 12 in this embodiment can be the same as that in the embodiment shown in FIG. 2 above. #@ For the edge coating layer 11, a coated and sintered layer of fluororesin dispersion can be used. Next, the tracking resistance test results of the tracking resistant adhesive tape according to the present invention will be explained.
実施例に
層溶融押出しによって５０ＡＬｍ厚みのフッ化ビニリデ
ン梗脂層とポリメチルメタクリレート樹脂層とからなる
フィルムを得、ポリメチルメタクリレート樹脂層上にア
クリル系粘着剤を厚み２５μｍで塗布して厚み７５μｍ
の耐トラッキング性粘着テープを得た。この実施例品の
弾性率は１４０ｋｇ／ｒｕｍ２である。又、引っ張り強
度（ｋｇ／１０ｍｍ１ｌＴ）は３．７、伸度は（％）は
１８０、耐電圧は１，８７５ｋｖ／Ｉ分以上、連続使用
可能温度は１４ゲＣであった。In an example, a film consisting of a vinylidene fluoride tallow layer with a thickness of 50 ALm and a polymethyl methacrylate resin layer was obtained by layer melt extrusion, and an acrylic adhesive was applied to a thickness of 25 μm on the polymethyl methacrylate resin layer to a thickness of 75 μm.
A tracking-resistant adhesive tape was obtained. The elastic modulus of this Example product is 140 kg/rum2. Further, the tensile strength (kg/10mm11T) was 3.7, the elongation (%) was 180, the withstand voltage was 1,875 kv/I minute or more, and the continuous use temperature was 14 GeC.
実施例２
ポリプロピレンを厚み１０μｍで、エチレン−酢酸ビニ
ル共重合体（ＥＶＡ）を厚み５μｍでそれぞれ並列配置
の押出し機によって同時に押出して融着し、エチレン酢
酸ビニル共重合体層にポリエステルフィルムを融着して
厚み４５μｍの複合フィルムを得、そのポリエステルフ
ィルム面に難燃剤混入のアクリル系粘着剤層を設けて総
厚６５μｍの耐トラッキング性粘着テープを得た。この
実施例品の弾性率は５７０ｋｇ／ｍｍ２である。又、引
っ張り強度（ｋｇ／１０ｍｍ１）は５．６、伸度は（％
）は８０、耐電圧は１ 、８７５ｋｖ／１分以上、連続
使用可能温度は１２０°Ｃであった。Example 2 Polypropylene with a thickness of 10 μm and ethylene-vinyl acetate copolymer (EVA) with a thickness of 5 μm were simultaneously extruded and fused using extruders arranged in parallel, and a polyester film was fused to the ethylene-vinyl acetate copolymer layer. A composite film with a thickness of 45 μm was obtained, and an acrylic adhesive layer containing a flame retardant was provided on the surface of the polyester film to obtain a tracking-resistant adhesive tape with a total thickness of 65 μm. The elastic modulus of this Example product is 570 kg/mm2. In addition, the tensile strength (kg/10mm1) is 5.6, and the elongation is (%
) was 80, the withstand voltage was 1, 875 kv/1 minute or more, and the continuous use temperature was 120°C.
実施例３
ポリメチルペンテン樹脂とエチレン酢酸ビニル共重合体
樹脂とを二層押出しによって形成したフィルムのエチレ
ン酢酸ビニル共重合体樹脂面に、厚さ２５μｍのポリエ
ステルフィルムを熱ロールによってラミネート加工した
。このようにして得られた厚み４０μｍの複合フィルム
のポリエステルフィルム面にアクリル系の粘着層を設け
て、総厚み５０μｍの耐トラッキング性粘着チー・プを
得た。この実施例品の弾性率は５３０ｋｇ／ Ｏｎ＋２
である。又、引っ張り強度（ｋｇ／ １０ｍｍ１）は５
．８、伸度は（％）は１００、耐電圧は１．８７５ｋｖ
／１分以上、連続使用可能温度は１２０°Ｃであった。Example 3 A 25 μm thick polyester film was laminated with a hot roll on the ethylene vinyl acetate copolymer resin surface of a film formed by two-layer extrusion of polymethylpentene resin and ethylene vinyl acetate copolymer resin. An acrylic adhesive layer was provided on the polyester film surface of the thus obtained composite film with a thickness of 40 μm to obtain a tracking-resistant adhesive chip with a total thickness of 50 μm. The elastic modulus of this example product is 530 kg/On+2
It is. Also, the tensile strength (kg/10mm1) is 5
．． 8. Elongation (%) is 100, withstand voltage is 1.875kv
The temperature at which it could be used continuously for more than 1 minute was 120°C.
比較例
厚さ５０μｍのポリエステルフィルム上にアクリル系粘
着剤を塗布し、総厚みを５５μｍとした粘着テープを作
成した。Comparative Example An acrylic adhesive was applied onto a polyester film having a thickness of 50 μm to create an adhesive tape having a total thickness of 55 μm.
これらの実施例品並びに比較例品を円柱絶縁棒上に一回
うツブ巻きし、そのラップ箇所を挾んで電極を配置し、
ＩＥＣ法耐トラッキング性試験に準じてＣＴＩ値を測定
したところ、実施例品においては何れも６００■以上で
あった。これに対し、比較例品ではラップ箇所が剥離し
、２８０■に過ぎなかった。These example products and comparative example products were wrapped once around a cylindrical insulating rod, and electrodes were placed between the wrapped portions.
When the CTI values were measured according to the IEC method tracking resistance test, all of the example products had a CTI value of 600 ■ or more. On the other hand, in the comparative example, the lapped area peeled off, and the thickness was only 280 cm.
（発明の効果）
本発明に係わる耐トラッキング性粘着テープにおいては
、上述した通りの弾性率並びに厚みとすることにより巻
き終り端での剥離を防止し、かつ、所謂「おしぎ現象Ｊ
を排除して巻回できるので、テープ自体のＣＴＩ値４０
０ｖ以上の優れた耐トラッキング性を容易なテープ巻回
作業で電気機器に保証できる。(Effects of the Invention) The anti-tracking adhesive tape according to the present invention has the elastic modulus and thickness as described above to prevent peeling at the end of the winding, and also prevents the so-called "Oshigi phenomenon J".
Since the tape can be wound while eliminating the CTI value of 40
Excellent tracking resistance of 0V or more can be guaranteed for electrical equipment by easy tape winding work.
第１図、第２図並びに第３図はそれぞれ本発明の実施例
を示す説明図である。
１・・・ＣＴＩ値が６００■以上のＵ縁テープ、２・・
・粘着層。FIG. 1, FIG. 2, and FIG. 3 are explanatory diagrams each showing an embodiment of the present invention. 1... U-edge tape with a CTI value of 600■ or more, 2...
・Adhesive layer.
Claims (4)
キング指数が４００ｖ以上であって、弾性率が２０〜１
２０Ｏｋｇ／ｍｍ＾２、厚みが５〜１５０μｍである絶
縁フィルムの裏面に粘着層を設けたことを特徴とする耐
トラッキング性粘着テープ。(1) Comparative tracking index determined by IEC method tracking resistance test is 400v or more, and elastic modulus is 20 to 1
A tracking-resistant adhesive tape characterized by providing an adhesive layer on the back side of an insulating film having a weight of 200 kg/mm^2 and a thickness of 5 to 150 μm.
ルムがポリプロピレン、ポリメチルペンテン、フッ化ビ
ニリデン、ポリテトラフルオロエチレン、エチレンテト
ラフルオロエチレンなどのフッ素系炭化水素樹脂、ブチ
ルゴム、ポリメチルメタクリレートの何れかからなるこ
とを特徴とする請求項（１）記載の耐トラッキング性粘
着テープ。(2) The insulating film is a single film, and the single film is made of a fluorine-based hydrocarbon resin such as polypropylene, polymethylpentene, vinylidene fluoride, polytetrafluoroethylene, or ethylenetetrafluoroethylene, butyl rubber, or polymethyl methacrylate. The tracking-resistant adhesive tape according to claim 1, characterized in that it consists of:
以上の表層と支持フィルムとの複合体であることを特徴
とする請求項（１）記載の耐トラッキング性粘着テープ
。(3) Insulating film has a comparative tracking index of 400v
The tracking-resistant adhesive tape according to claim 1, which is a composite of the above surface layer and a support film.
上の耐熱性を有するポリオレフィン系樹脂、フッ化ビニ
リデン、ポリテトラフルオロエチレン、エチレンテトラ
フルオロエチレンなどのフッ素系炭化水素樹脂の何れか
のフィルムからなり、支持フィルムが厚み１．５〜ほぼ
１５０μｍのポリエステル、ポリエチレンナフタレート
、ポリフェニレンサルファイド、ポリエーテルエテルケ
トン、ポリイミド、薄葉紙或いは、エポキシ樹脂含浸ポ
リエステル不織布又はガラスクロスの何れかのフィルム
からなることを特徴とする請求項（３）記載の耐トラッ
キング性粘着テープ。(4) The surface layer is made of a film of polyolefin resin with a thickness of 0.5 to 80 μm and a fluorine-based hydrocarbon resin such as polypropylene or vinylidene fluoride, polytetrafluoroethylene, or ethylenetetrafluoroethylene. , the supporting film is made of a film of polyester, polyethylene naphthalate, polyphenylene sulfide, polyether ether ketone, polyimide, tissue paper, epoxy resin-impregnated polyester nonwoven fabric, or glass cloth having a thickness of 1.5 to approximately 150 μm. The tracking-resistant adhesive tape according to claim (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2184919A JPH0719494B2 (en) | 1990-07-12 | 1990-07-12 | Tracking resistant adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2184919A JPH0719494B2 (en) | 1990-07-12 | 1990-07-12 | Tracking resistant adhesive tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473824A true JPH0473824A (en) | 1992-03-09 |
| JPH0719494B2 JPH0719494B2 (en) | 1995-03-06 |
Family
ID=16161630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2184919A Expired - Lifetime JPH0719494B2 (en) | 1990-07-12 | 1990-07-12 | Tracking resistant adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719494B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621118U (en) * | 1992-08-21 | 1994-03-18 | 株式会社潤工社 | Insulated wire and coaxial cable |
| EP0592937A2 (en) * | 1992-10-12 | 1994-04-20 | Nitto Denko Corporation | Tracking resistant material and circuit substrate using the material |
| JP2012135917A (en) * | 2010-12-25 | 2012-07-19 | Furukawa-Sky Aluminum Corp | Precoated aluminum material and method for manufacturing the same |
| WO2023053560A1 (en) * | 2021-09-28 | 2023-04-06 | 東洋インキＳｃホールディングス株式会社 | Insulative adhesive tape |
-
1990
- 1990-07-12 JP JP2184919A patent/JPH0719494B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621118U (en) * | 1992-08-21 | 1994-03-18 | 株式会社潤工社 | Insulated wire and coaxial cable |
| EP0592937A2 (en) * | 1992-10-12 | 1994-04-20 | Nitto Denko Corporation | Tracking resistant material and circuit substrate using the material |
| EP0592937A3 (en) * | 1992-10-12 | 1997-03-05 | Nitto Denko Corp | Tracking resistant material and circuit substrate using the material |
| JP2012135917A (en) * | 2010-12-25 | 2012-07-19 | Furukawa-Sky Aluminum Corp | Precoated aluminum material and method for manufacturing the same |
| WO2023053560A1 (en) * | 2021-09-28 | 2023-04-06 | 東洋インキＳｃホールディングス株式会社 | Insulative adhesive tape |
| JP2023048781A (en) * | 2021-09-28 | 2023-04-07 | 東洋インキＳｃホールディングス株式会社 | Insulation adhesive tape |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0719494B2 (en) | 1995-03-06 |
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