JP2001179870A - Easy peel film - Google Patents
Easy peel filmInfo
- Publication number
- JP2001179870A JP2001179870A JP37701499A JP37701499A JP2001179870A JP 2001179870 A JP2001179870 A JP 2001179870A JP 37701499 A JP37701499 A JP 37701499A JP 37701499 A JP37701499 A JP 37701499A JP 2001179870 A JP2001179870 A JP 2001179870A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- antistatic agent
- peel film
- easy peel
- heat seal
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、容器に収納した内
容物の落下防止あるいは保護等のために、その蓋材とし
て用いるイージーピールフィルムに関し、該フィルムは
電子部品包装用のカバーテープとして更にキャリアテー
プ用カバーテープとして好適に用いることができる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easy-peel film used as a cover material for preventing or protecting contents contained in a container from falling, and the film is used as a cover tape for packaging electronic parts. It can be suitably used as a tape cover tape.
【０００２】[0002]
【従来の技術】イージーピールフィルムは容器の蓋材と
して用いられる。イージーピールフィルムはヒートシー
ル層により容器に接着され、内容物を取り出す際には容
易に容器から剥がせることが要求される。収納物がＩＣ
等の電子部品あるいは静電気により破壊されやすい部品
である場合また小型部品である場合、埃の付着防止や内
容物の静電気からの保護、また剥離時にフィルム側へ内
容物が付着して飛び出す等のトラブルを防止するために
イージーピールフィルムの表面に帯電防止処理がなさ
る。これらのフィルムの例としてキャリアテープ用のカ
バーテープ等がある。帯電防止処理には、帯電防止性を
付与させようとする面を構成するプラスチックに帯電防
止剤を練り込んだり、あるいは帯電防止剤を表面に薄く
塗布するなどの方法が用いられる。帯電防止剤の塗布に
関しては例えば特開平１１−１１５０８８号、特開平９
−１５６６８４号、特許第２９０１８５７号、特開平５
−５１０５３号、特開平４−３６７４５７号、実開平３
−１２６８７０号、特開平３−３０２９５号、特許第２
８５５４４４号、実開昭５８−７３９９号に開示されて
いる。2. Description of the Related Art Easy peel films are used as lids for containers. The easy peel film is adhered to the container by the heat seal layer, and it is required that the content can be easily removed from the container when the content is taken out. Stowage is IC
In the case of electronic parts such as, or parts that are easily destroyed by static electricity, or small parts, troubles such as prevention of dust adhesion and protection of the contents from static electricity, and adhesion of the contents to the film side during peeling and jumping out The surface of the easy-peel film is subjected to an antistatic treatment in order to prevent the occurrence of the static electricity. Examples of these films include a cover tape for a carrier tape. For the antistatic treatment, a method of kneading an antistatic agent into a plastic constituting a surface to which the antistatic property is to be imparted, or a method of thinly applying the antistatic agent to the surface is used. With respect to the application of the antistatic agent, see, for example, JP-A-11-115088,
156684, Japanese Patent No. 2901857,
No.-51053, JP-A-4-369457, Japanese Utility Model Laid-Open No. 3
-126870, JP-A-3-30295, Patent No. 2
No. 855444 and Japanese Utility Model Laid-Open No. 58-7399.
【０００３】帯電防止剤を塗布する方法は簡易である
が、その帯電防止効果が必ずしも充分でなかったり、効
果が長続きしなかったり、効果がバラついたりする問題
点があった。[0003] The method of applying an antistatic agent is simple, but there are problems that the antistatic effect is not always sufficient, the effect does not last long, or the effect varies.
【０００４】[0004]
【発明が解決しようとする課題】本発明はそれらの問題
を解決するもので、本発明によれば帯電防止剤をイージ
ーピールフィルムの表面に均一に塗布することにより、
表面抵抗率を内容物の飛び出し等トラブルを防止でき、
なおかつ静電気の破壊から内容物を守るレベルに安定的
にすることができ、位置によるバラツキを解消すること
ができる。SUMMARY OF THE INVENTION The present invention solves these problems. According to the present invention, an antistatic agent is uniformly applied to the surface of an easy-peel film.
Surface resistivity can prevent problems such as jumping out of contents,
In addition, the content can be stabilized to a level that protects the contents from the destruction of static electricity, and variations due to positions can be eliminated.
【０００５】[0005]
【課題を解決するための手段】すなわち本発明は基材層
とヒートシール層を有し、ぬれ指数が４００μＮ／ｃｍ
以上であるヒートシール層表面に帯電防止剤を塗布して
なるイージーピールフィルムであり、基材層とヒートシ
ール層を有し、ヒートシール層表面がコロナ放電処理さ
れ更に帯電防止剤が塗布されてなるイージーピールフィ
ルムであり、基材層とヒートシール層を有し、コロナ放
電処理によりぬれ指数が４００μＮ／ｃｍ以上であるヒ
ートシール層表面に帯電防止剤を塗布してなるイージー
ピールフィルムであり、基材層とヒートシール層を有
し、ヒートシール層面の表面抵抗率が１×１０７Ω／□
〜１×１０１２Ω／□であり、表面抵抗率の対数の最大
値と最小値の差が２以下であるイージーピールフィルム
である。本発明のイージーピールフィルムは電子部品包
装用カバーテープに、特にキャリアテープ用カバーテー
プに好適に用いる事ができる。That is, the present invention has a substrate layer and a heat seal layer, and has a wetting index of 400 μN / cm.
It is an easy peel film obtained by applying an antistatic agent to the surface of the heat seal layer, which has a base layer and a heat seal layer, and the surface of the heat seal layer is subjected to corona discharge treatment and further applied with an antistatic agent. An easy peel film having a base layer and a heat seal layer, and having an antistatic agent applied to the surface of the heat seal layer having a wetting index of 400 μN / cm or more by corona discharge treatment, It has a base material layer and a heat seal layer, and the surface resistivity of the heat seal layer surface is 1 × 10 7 Ω / □.
イ ー 1 × 10 12 Ω / □, and the difference between the maximum value and the minimum value of the logarithm of the surface resistivity is 2 or less. The easy peel film of the present invention can be suitably used for a cover tape for packaging electronic parts, particularly for a carrier tape.
【０００６】[0006]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明のイージーピールフィルムは基材層とヒートシー
ル層を必ず有している。ここで「有している」とは基材
層／ヒートシール層の二層構造であってもよいし、両層
の間に別の層である中間層をいれた、基材層／中間層／
ヒートシール層の３層構造であってもよいことを意味す
る。中間層は一層であってもいいし、異なる材料を積層
した二層以上であってもよい。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The easy peel film of the present invention always has a substrate layer and a heat seal layer. Here, “having” may have a two-layer structure of a base material layer / a heat seal layer, or a base material layer / intermediate layer in which an intermediate layer which is another layer is interposed between both layers. /
This means that a three-layer structure of a heat seal layer may be used. The intermediate layer may be a single layer or two or more layers obtained by laminating different materials.
【０００７】基材層は熱可塑性樹脂からなり、例えばポ
リエチレンテレフタレート、ポリエチレンナフタレート
等のポリエステル、ポリプロピレン等のポリオレフィ
ン、ナイロン等のポリアミド、ポリカーボネート等の熱
可塑性樹脂より製膜されたフィルム、特に二軸延伸フィ
ルムを好適に用いることができる。好ましくは二軸延伸
ポリエチレンテレフタレートフィルムである。The base material layer is made of a thermoplastic resin. For example, a film formed of a thermoplastic resin such as polyester such as polyethylene terephthalate and polyethylene naphthalate, a polyolefin such as polypropylene, a polyamide such as nylon, and a polycarbonate, particularly a biaxial film. Stretched films can be suitably used. Preferably, it is a biaxially stretched polyethylene terephthalate film.
【０００８】ヒートシール層は容器に対してヒートシー
ル性を有し、使用時に容易に剥がすことのできるイージ
ーピール性を示す熱可塑性樹脂からなり、例えばエチレ
ン−酢酸ビニル共重合体やエチレン−アクリル酸エチル
共重合体、ポリエチレンなどのエチレン系重合体、スチ
レン−ブタジエン共重合体、ハイインパクトポリスチレ
ン、ポリスチレン等のスチレン系重合体の単独または複
数種のブレンド物などを用いることができる。好ましく
はエチレン系重合体とスチレン−ブタジエン共重合体、
ハイインパクトポリスチレンのブレンド物である。The heat seal layer is made of a thermoplastic resin having a heat seal property with respect to the container and exhibiting an easy peeling property which can be easily peeled off at the time of use, for example, an ethylene-vinyl acetate copolymer or ethylene-acrylic acid. Ethylene copolymers, ethylene-based polymers such as polyethylene, styrene-butadiene copolymers, high-impact polystyrene, styrene-based polymers such as polystyrene and the like, or a blend of plural kinds thereof can be used. Preferably ethylene polymer and styrene-butadiene copolymer,
It is a blend of high impact polystyrene.
【０００９】基材層とヒートシール層の間には中間層を
設けることが出来る。中間層は熱可塑性樹脂からなり、
単層でも複層でもよい。中間層を設ける事によりフィル
ムの柔軟性を調整したり、基材層とヒートシール層の接
着強度を強固にすることができる。公知の熱可塑性樹脂
であれば特に限定されず単独あるいは複数を用いること
ができる。中間層に使用する熱可塑性樹脂はその目的か
ら種々選択可能であるが、好ましくはポリエチレン系樹
脂である。例えばヒートシール層にスチレン−ブタジエ
ン共重合体とエチレン−１−ブテンとＳＥＢＳ樹脂を用
い、基材層として二軸延伸のポリエステルフィルムを用
いた場合には、中間層としてポリエチレンをあるいはポ
リエチレンとＳＥＢＳ樹脂のブレンド物を用いることが
できる。An intermediate layer can be provided between the base layer and the heat seal layer. The intermediate layer is made of a thermoplastic resin,
It may be a single layer or multiple layers. By providing the intermediate layer, the flexibility of the film can be adjusted, and the adhesive strength between the base material layer and the heat seal layer can be increased. It is not particularly limited as long as it is a known thermoplastic resin, and a single resin or a plurality of resins can be used. The thermoplastic resin used for the intermediate layer can be variously selected depending on the purpose, but is preferably a polyethylene resin. For example, when a styrene-butadiene copolymer, ethylene-1-butene and SEBS resin are used for the heat seal layer and a biaxially stretched polyester film is used for the base layer, polyethylene or polyethylene and SEBS resin are used as the intermediate layer. Can be used.
【００１０】基材層は、ヒートシール層または中間層と
の接着強度を強固にして安定するために、ヒートシール
層または中間層と接する側をサンドプラスト処理、コロ
ナ放電処理、プラズマ処理等の表面処理をすることがで
きる。また、基材層には帯電防止剤を練り込んだり、表
面コートした静電防止品を用いることもできる。The base material layer has a surface in contact with the heat seal layer or the intermediate layer, such as a sand blast treatment, a corona discharge treatment, or a plasma treatment, in order to strengthen the adhesive strength with the heat seal layer or the intermediate layer and to stabilize the adhesive strength. Can be processed. Further, an antistatic agent in which an antistatic agent is kneaded or whose surface is coated can also be used in the base material layer.
【００１１】本発明のイージーピールフィルムでは、ヒ
ートシール層の容器と接着する面の表面抵抗率が１×１
０７Ω／□〜１×１０１２Ω／□の範囲にあり、表面抵
抗率の対数の最大値と最小値の差が２以下と表面抵抗率
のバラツキが小さい。バラツキを小さくするには、ヒー
トシール層の容器とヒートシールする面のぬれ指数を上
げることが望ましく、好ましくは４００μＮ／ｃｍ以上
として帯電防止剤を塗布するとよい。ぬれ指数が低いと
帯電防止剤を均一に塗布することができず表面抵抗率の
バラツキが大きくなり好ましくない。ぬれ指数を高くす
ると均一に塗布することができバラツキを減少させるこ
とができる。ただし、５００μＮ／ｃｍを越えると効果
が飽和してそれ以上高くしても大きな改良は見られなく
なる。[0011] In the easy peel film of the present invention, the surface resistivity of the surface of the heat-sealing layer to be bonded to the container is 1 × 1.
0 7 Ω / □ ~1 × is in the 10 12 Ω / □ range, the difference between the maximum value and the minimum value of the log of the surface resistivity is less variation in the 2 or less and the surface resistivity. In order to reduce the variation, it is desirable to increase the wetting index of the surface of the heat-sealing layer to be heat-sealed with the container, and it is preferable to apply an antistatic agent at 400 μN / cm or more. If the wetting index is low, the antistatic agent cannot be applied uniformly, and the variation in surface resistivity is undesirably large. If the wetting index is increased, it is possible to apply the coating uniformly and reduce the variation. However, if it exceeds 500 μN / cm, the effect is saturated and even if the effect is further increased, no significant improvement can be seen.
【００１２】ぬれ指数を上げるにはフィルムの表面をコ
ロナ放電処理するとよい。この場合ぬれ指数をコロナ放
電処理によって上げても経時的にぬれ指数が低下し、表
面抵抗率の不良を引き起こすこととがある。それを防止
するにはコロナ放電処理と帯電防止剤塗布を連続的に行
うことが望ましい。また、コロナ放電処理によりフィル
ムが帯電することがあるが、それを防止するために除電
装置を組み込むとよい。In order to increase the wetting index, the surface of the film is preferably subjected to a corona discharge treatment. In this case, even if the wetting index is increased by the corona discharge treatment, the wetting index decreases with time, which may cause a poor surface resistivity. To prevent this, it is desirable to perform corona discharge treatment and antistatic agent application continuously. Further, the film may be charged by the corona discharge treatment. In order to prevent the charge, it is preferable to incorporate a static eliminator.
【００１３】本発明で使用される帯電防止剤としてはカ
チオン系界面活性剤タイプ、アニオン系界面活性剤タイ
プ、両性イオン系界面活性剤タイプ、また高分子量鎖に
上記親水基を結合したような高分子量型帯電防止剤など
があり、市販のものを使用することができる。特に好ま
しくは、アルキルベタイン系や４級アンモニウム塩系帯
電防止剤が挙げられる。The antistatic agent used in the present invention may be a cationic surfactant type, an anionic surfactant type, an amphoteric surfactant type, or a high-molecular weight chain having the hydrophilic group bonded thereto. There are molecular weight type antistatic agents and the like, and commercially available ones can be used. Particularly preferred are alkyl betaine-based and quaternary ammonium salt-based antistatic agents.
【００１４】本発明では水に溶けないあるいは解け難い
帯電防止剤やその有機系溶媒の溶液も使うことができる
が、特に水系の帯電防止剤を好適に用いる事ができる。
従来プラスチックの表面に均一に塗布しにくかった水溶
液を含む水系帯電防止剤を均一に塗布することができる
ので、水系帯電防止剤の使用が可能となり、作業環境を
よくすることができる。水系の帯電防止剤はプラスチッ
クに対しぬれ性が悪く、いわゆる”水をはじく”ような
現象が起こる。しかし本発明によればそのような”水を
はじく”現象を防止することができ均一に帯電防止剤を
塗布することができる。本発明によらず何の処理もされ
ていない表面に帯電防止剤を塗布すると、均一に塗布さ
れているかに見える帯電防止剤の塗膜も、溶媒を蒸発さ
せるための乾燥工程において水が蒸発するにつれて、乾
燥工程末期ではやはり水をはじく状況になり、表面抵抗
率が目標レベルに達しなかったり、また表面抵抗率が測
定位置によって大きく異なりバラツキの原因となる。な
お本発明で水系の帯電防止剤には、水に溶け難い帯電防
止剤を水に分散させたものも含まれる。In the present invention, an antistatic agent which is insoluble or difficult to dissolve in water or a solution of an organic solvent thereof can be used. In particular, an aqueous antistatic agent can be suitably used.
A water-based antistatic agent containing an aqueous solution, which has been difficult to apply uniformly on the surface of plastics in the past, can be uniformly applied, so that an aqueous antistatic agent can be used and the working environment can be improved. A water-based antistatic agent has poor wettability to plastics, and causes a so-called "water-repelling" phenomenon. However, according to the present invention, such a "water repelling" phenomenon can be prevented, and the antistatic agent can be applied uniformly. When an antistatic agent is applied to a surface that has not been subjected to any treatment regardless of the present invention, the coating film of the antistatic agent that appears to be applied uniformly also evaporates water in a drying step for evaporating the solvent. As a result, at the end of the drying process, water is repelled again, and the surface resistivity does not reach the target level, and the surface resistivity varies greatly depending on the measurement position, causing variations. In the present invention, the water-based antistatic agent includes a water-soluble antistatic agent dispersed in water.
【００１５】帯電防止剤の塗布方法には特に限定されず
公知の塗布方法を実施できる。しかし、フィルムのイー
ジーピール性を損なわないため帯電防止剤は比較的薄
く、例えば数μｍあるいは１μｍ未満で塗布する場合が
多いので、そのように塗布できる方法が好ましい。例え
ばロールコーターや噴霧などの方法で塗布することがで
きる。The method of applying the antistatic agent is not particularly limited, and a known coating method can be used. However, the antistatic agent is relatively thin in order not to impair the easy-peeling property of the film. For example, the antistatic agent is often applied at a thickness of several μm or less than 1 μm. For example, it can be applied by a method such as a roll coater or spraying.
【００１６】[0016]
【実施例】本発明の実施例および比較例を以下に示す。 （実施例１）基材層として二軸延伸ポリエステルフィル
ム、ヒートシール層としてスチレン−ブタジエン共重合
樹脂とスチレン−ブタジエン共重合エラストマーとエチ
レン−１−ブテン共重合体からなるフィルム、中間層と
して低密度ポリエチレンを用い、基材層／中間層／ヒー
トシール層の構造のフィルムを押出ラミネートで作成し
た。各層の厚みは１２／２０／３０μｍであった。この
フィルムのヒートシール層の表面のぬれ指数を測定した
ところ、３２０〜３３０μＮ／ｃｍであった。このフィ
ルムをコロナ放電処理し、引き続きコロナ放電処理され
た面へ水系帯電防止剤水溶液（日本純薬社製：商品名Ｓ
ＡＴ）を噴霧、乾燥しイージーピールフィルムを得た。
帯電防止剤の塗布厚みは使用量の固形分換算から約０．
１μｍであった。EXAMPLES Examples and comparative examples of the present invention are shown below. (Example 1) A biaxially oriented polyester film as a substrate layer, a film made of a styrene-butadiene copolymer resin, a styrene-butadiene copolymer elastomer and an ethylene-1-butene copolymer as a heat seal layer, and a low density as an intermediate layer Using polyethylene, a film having a structure of base layer / intermediate layer / heat seal layer was formed by extrusion lamination. The thickness of each layer was 12/20/30 μm. When the wetting index of the surface of the heat seal layer of this film was measured, it was 320 to 330 μN / cm. This film is subjected to a corona discharge treatment, and a water-based antistatic agent aqueous solution (manufactured by Nippon Pure Chemical Co., Ltd .: trade name S)
AT) was sprayed and dried to obtain an easy peel film.
The coating thickness of the antistatic agent is about 0.
It was 1 μm.
【００１７】（実施例２、３、４）コロナ放電処理の条
件を変更した以外は実施例１と同様にてぬれ指数の異な
るフィルムを作成した。(Examples 2, 3, and 4) Films having different wetting indices were prepared in the same manner as in Example 1 except that the conditions of the corona discharge treatment were changed.
【００１８】（比較例１、２、３）実施例と同じ方法に
て、コロナ放電処理を行わなかったフィルムと条件を変
更してぬれ指数が４００μＮ／ｃｍ未満のフィルムを作
成した。(Comparative Examples 1, 2, and 3) A film having a wetting index of less than 400 μN / cm was prepared in the same manner as in the example, except that the film was not subjected to the corona discharge treatment and the conditions were changed.
【００１９】得られたイージーピールフィルムの８００
ｍｍ四方より１００ｍｍ角の測定用サンプルを６カ所か
ら採取した。サンプルは２３℃×５０％ＲＨ環境にて２
４時間状態調整を行い、その後同環境にてＪＩＳ Ｋ−
６９１１に記載されている方法（印加電圧：５００Ｖ、
測定時間６０秒）にて表面抵抗率を測定した。得られた
測定結果から、それぞれ対数値を求め、その平均値を指
数とし表面抵抗率の平均値とした。また、対数値の最大
値と最小値の差を求めた。The obtained easy peel film 800
Measurement samples measuring 100 mm square from a square of mm were collected from six places. The sample is 2 in a 23 ° C x 50% RH environment.
After adjusting the condition for 4 hours, JIS K-
6911 (applied voltage: 500 V,
The surface resistivity was measured at a measurement time of 60 seconds). From the obtained measurement results, logarithmic values were obtained, and the average value was used as an index to determine the average value of the surface resistivity. Also, the difference between the maximum value and the minimum value of the logarithmic value was determined.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】実施例１から４のイージーピールフィルム
を裁断してキャリアテープ用カバーテープとしてスチレ
ン系樹脂よりなるキャリアテープに用いたところいずれ
も良好な帯電防止性を示し、収納したＩＣの静電気破壊
もなかった。When the easy peel films of Examples 1 to 4 were cut and used as a carrier tape made of a styrene-based resin as a cover tape for a carrier tape, all of them exhibited good antistatic properties, and the stored ICs were also damaged by static electricity. Did not.
【００２３】[0023]
【発明の効果】本発明によれば均一な帯電防止性能を有
したイージーピールフィルム及びキャリアテープ用カバ
ーテープを提供できる。According to the present invention, it is possible to provide an easy peel film and a cover tape for a carrier tape having uniform antistatic performance.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3E067 AA11 AB41 BB14A BB15A BB16A BB18A BB25A BB26A BC07A CA21 CA24 EB27 EE35 GD08 3E086 AD24 BA04 BA15 BA24 BA33 BB35 BB51 BB57 CA31 DA02 3E096 BA08 CA14 DA14 DA17 EA02Y EA11Y FA07 GA07 4D075 BB49X CA22 DA04 DC36 EA06 EA60 4F100 AK01A AK01D AK06 AK41 AK65 AK73 AL05 AL09 AR00B BA03 BA04 BA07 BA10A BA10C CA22C EH23 EH46C EJ38 EJ55B GB18 GB41 JB04B JG03 JG04B JL12B JL14 YY00B ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E067 AA11 AB41 BB14A BB15A BB16A BB18A BB25A BB26A BC07A CA21 CA24 EB27 EE35 GD08 3E086 AD24 BA04 BA15 BA24 BA33 BB35 BB51 BB57 CA31 DA02 3E09 DA17 CA02 DA04 DC36 EA06 EA60 4F100 AK01A AK01D AK06 AK41 AK65 AK73 AL05 AL09 AR00B BA03 BA04 BA07 BA10A BA10C CA22C EH23 EH46C EJ38 EJ55B GB18 GB41 JB04B JG03 JG04B JL12B JL14 YY00B
Claims (9)
が４００μＮ／ｃｍ以上であるヒートシール層表面に帯
電防止剤を塗布してなるイージーピールフィルム。1. An easy peel film comprising a base material layer and a heat seal layer, wherein an antistatic agent is applied to the surface of the heat seal layer having a wetting index of 400 μN / cm or more.
ール層表面がコロナ放電処理され更に帯電防止剤が塗布
されてなるイージーピールフィルム。2. An easy peel film comprising a substrate layer and a heat seal layer, wherein the surface of the heat seal layer is subjected to a corona discharge treatment and further coated with an antistatic agent.
電処理によりぬれ指数が４００μＮ／ｃｍ以上であるヒ
ートシール層表面に帯電防止剤を塗布してなるイージー
ピールフィルム。3. An easy peel film comprising a substrate layer and a heat seal layer, wherein an antistatic agent is applied to the surface of the heat seal layer having a wetting index of 400 μN / cm or more by corona discharge treatment.
的に行われてなる請求項２または請求項３のイージーピ
ールフィルム。4. The easy peel film according to claim 2, wherein the corona discharge treatment and the application of the antistatic agent are performed continuously.
項４のイージーピールフィルム。5. The easy peel film according to claim 1, which is an aqueous antistatic agent.
ール層面の表面抵抗率が１×１０７Ω／□〜１×１０
１２Ω／□であり、表面抵抗率の対数の最大値と最小値
の差が２以下であるイージーピールフィルム。6. A heat-sealing layer having a base material layer and a heat-sealing layer having a surface resistivity of 1 × 10 7 Ω / □ to 1 × 10 7
An easy peel film having a resistivity of 12 Ω / □ and a difference between the maximum value and the minimum value of the logarithm of the surface resistivity of 2 or less.
ール層面の表面抵抗率が１×１０７Ω／□〜１×１０
１２Ω／□であり、表面抵抗率の対数の最大値と最小値
の差が２以下である請求項１から請求項５のいずれか一
項に記載のイージーピールフィルム。7. A heat-sealing layer having a base material layer and a heat-sealing layer having a surface resistivity of 1 × 10 7 Ω / □ to 1 × 10 7
The easy peel film according to any one of claims 1 to 5, wherein the value is 12 Ω / □ and the difference between the maximum value and the minimum value of the logarithm of the surface resistivity is 2 or less.
を有してなる請求項１から請求項７のいずれか一項に記
載のイージーピールフィルム。8. The easy peel film according to claim 1, further comprising an intermediate layer between the base material layer and the heat seal layer.
載のイージーピールフィルムからなるキャリアテープ用
カバーテープ。9. A cover tape for a carrier tape, comprising the easy-peel film according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37701499A JP3425547B2 (en) | 1999-12-27 | 1999-12-27 | Easy peel film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37701499A JP3425547B2 (en) | 1999-12-27 | 1999-12-27 | Easy peel film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001179870A true JP2001179870A (en) | 2001-07-03 |
| JP3425547B2 JP3425547B2 (en) | 2003-07-14 |
Family
ID=18508117
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37701499A Expired - Lifetime JP3425547B2 (en) | 1999-12-27 | 1999-12-27 | Easy peel film |
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| Country | Link |
|---|---|
| JP (1) | JP3425547B2 (en) |
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