JP2003251760A - Laminate having antistatic function - Google Patents
Laminate having antistatic functionInfo
- Publication number
- JP2003251760A JP2003251760A JP2002058400A JP2002058400A JP2003251760A JP 2003251760 A JP2003251760 A JP 2003251760A JP 2002058400 A JP2002058400 A JP 2002058400A JP 2002058400 A JP2002058400 A JP 2002058400A JP 2003251760 A JP2003251760 A JP 2003251760A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- antistatic
- mixed
- base film
- laminate
- 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、クリーン性を必要
とする半導体ウェハーやプリント基板やＩＣチップやオ
ーディオビデオテープヘッド、ＭＲヘッド等の包装に用
いられる包装用の積層体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging laminate used for packaging semiconductor wafers, printed boards, IC chips, audio / video tape heads, MR heads, etc., which require cleanliness.
【０００２】[0002]
【従来の技術】近年、半導体ウエハーやプリント基板や
ＩＣチップやオーディオビデオテープヘッド、ＭＲヘッ
ド等の包装に用いられる包装材料は最終製品として使用
する際にも静電気等によって塵埃が吸着すると、種々の
問題が発生する。例えば、オーディオビデオテープヘッ
ド、ＭＲヘッドの場合には、テープ走行・記録盤の回転
によって静電気が発生し、テープ・記録盤に吸着された
塵埃が再生ヘッド部分に堆積して音や映像などの記録情
報の質を低下させるか、またはヘッドを破壊させる等の
問題が発生し、クリーン性が保持される包装材料のニー
ズが大きい。2. Description of the Related Art In recent years, packaging materials used for packaging semiconductor wafers, printed circuit boards, IC chips, audio / video tape heads, MR heads, etc. have been found to have various kinds of dust when they are adsorbed by static electricity when used as final products. The problem occurs. For example, in the case of audio / video tape heads and MR heads, static electricity is generated by the tape running and the rotation of the recording board, and the dust adsorbed on the tape / recording board is accumulated on the reproducing head portion to record sound or images. There is a great need for a packaging material that maintains cleanliness because problems such as deterioration of information quality or destruction of the head occur.
【０００３】そこで、帯電防止剤として界面活性剤をベ
ース樹脂に対して配合することは既に公知であるが、水
洗や摩擦や経時によって消失することがあり各種工程・
環境下を通る物品には不向きであった。また、上記界面
活性剤（分子量：３００〜１０００以下）の不安定さを
解消した親水性高分子型帯電防止剤（分子量：２０００
〜３０００以上）を用いた場合でも湿度などの水分の影
響を完全に無視することはできず、特に低湿度環境下で
は設計通りの表面抵抗を維持できないことがある。Therefore, it is already known to add a surfactant as an antistatic agent to the base resin, but it may disappear due to washing with water, rubbing or aging, and various steps.
It was not suitable for articles that pass under the environment. In addition, a hydrophilic polymer type antistatic agent (molecular weight: 2000) that eliminates the instability of the above-mentioned surfactant (molecular weight: 300 to 1000 or less).
Even when using ˜3000 or more), the influence of moisture such as humidity cannot be completely ignored, and the surface resistance as designed may not be maintained especially in a low humidity environment.
【０００４】[0004]
【発明が解決しよとする課題】本発明は上記問題点に鑑
み考案されたもので、積層体が帯電防止機能及び水分調
整機能を有すると共にシーラントしてのシール性を保持
できる帯電防止機能を有する積層体を提供することを目
的とする。SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems, and it has an antistatic function in which a laminate has an antistatic function and a water content adjusting function, and at the same time, can maintain a sealing property as a sealant. An object is to provide a laminated body having.
【０００５】[0005]
【課題を解決するための手段】本発明に於いて上記課題
を達成するために、まず請求項１においては、ベースフ
ィルム樹脂に水分吸収剤を配合した水分吸収層と、ベー
スフィルム樹脂に帯電防止剤を配合した帯電防止層とか
らなり、シール面に前記帯電防止層を設けたことを特徴
とする帯電防止機能を有する積層体としたものである。In order to achieve the above object in the present invention, first, in claim 1, a moisture absorbing layer in which a moisture absorbing agent is mixed with a base film resin and an antistatic agent are added to the base film resin. A laminate having an antistatic function, comprising an antistatic layer containing an agent and having the antistatic layer on the sealing surface.
【０００６】また、請求項２においては、ベースフィル
ム樹脂に帯電防止剤と水分吸収剤とを混合配合した混合
層からなることを特徴とする帯電防止機能を有する積層
体としたものである。According to a second aspect of the present invention, there is provided a laminate having an antistatic function, which comprises a mixed layer in which an antistatic agent and a water absorbent are mixed and mixed with a base film resin.
【０００７】また、請求項３においては、ベースフィル
ム樹脂に水分吸収剤を配合した水分吸収層と、ベースフ
ィルム樹脂に帯電防止剤と水分吸収剤とを混合配合した
混合層とからなり、シール面に前記混合層を設けたこと
を特徴とする帯電防止機能を有する積層体としたもので
ある。According to the third aspect of the present invention, the sealing surface comprises a water absorbing layer in which a base film resin is mixed with a water absorbing agent and a mixed layer in which a base film resin is mixed and mixed with an antistatic agent and a water absorbing agent. It is a laminated body having an antistatic function, characterized in that the above-mentioned mixed layer is provided.
【０００８】また、請求項４においては、ベースフィル
ム樹脂からなる貼合層と、ベースフィルム樹脂に水分吸
収剤を配合した水分吸収層と、ベースフィルム樹脂に帯
電防止剤を配合した帯電防止層とからなり、シール面に
前記帯電防止層を設けたことを特徴とする帯電防止機能
を有する積層体としたものである。Further, in claim 4, a laminating layer made of a base film resin, a moisture absorbing layer in which a moisture absorbent is mixed with the base film resin, and an antistatic layer in which an antistatic agent is blended in the base film resin. And the antistatic layer is provided on the sealing surface, which is a laminate having an antistatic function.
【０００９】また、請求項５においては、ベースフィル
ム樹脂からなる貼合層と、ベースフィルム樹脂に帯電防
止剤と水分吸収剤とを混合配合した混合層とからなり、
シール面に前記混合層を設けたことを特徴とする帯電防
止機能を有する積層体としたものである。According to a fifth aspect of the present invention, there is provided a laminating layer made of a base film resin, and a mixed layer obtained by mixing the base film resin with an antistatic agent and a water absorbent.
The laminated body having an antistatic function is characterized in that the mixed layer is provided on the sealing surface.
【００１０】また、請求項６においては、ベースフィル
ム樹脂からなる貼合層と、ベースフィルム樹脂に水分吸
収剤を配合した水分吸収層と、ベースフィルム樹脂に帯
電防止剤と水分吸収剤とを混合配合した混合層とからな
り、シール面に前記混合層を設けたことを特徴とする帯
電防止機能を有する積層体としたものである。Further, in claim 6, a laminating layer made of a base film resin, a water absorbing layer in which a water absorbing agent is mixed with the base film resin, and an antistatic agent and a water absorbing agent are mixed in the base film resin. A laminated body having an antistatic function, characterized in that it is composed of a blended mixed layer, and the mixed layer is provided on the sealing surface.
【００１１】また、請求項７においては、ベースフィル
ム樹脂に水分吸収剤を配合した水分吸収層と、ベースフ
ィルム樹脂からなる中間層と、ベースフィルム樹脂に帯
電防止剤と水分吸収剤とを混合配合した混合層とからな
り、シール面に前記混合層を設けたことを特徴とする帯
電防止機能を有する積層体としたものである。Further, in the present invention, a water absorbing layer in which a base film resin is mixed with a water absorbing agent, an intermediate layer formed of the base film resin, and a base film resin in which an antistatic agent and a water absorbing agent are mixed and mixed. And a mixed layer formed on the sealing surface, and the mixed layer is provided on the sealing surface.
【００１２】また、請求項８においては、ベースフィル
ム樹脂に水分吸収剤を配合した水分吸収層と、ベースフ
ィルム樹脂からなる中間層と、ベースフィルム樹脂に帯
電防止剤と水分吸収剤とを混合配合した混合層とからな
り、シール面に前記混合層を設けたことを特徴とする帯
電防止機能を有する積層体としたものである。Further, in the present invention, a water absorbing layer in which a base film resin is mixed with a water absorbing agent, an intermediate layer made of the base film resin, and a base film resin in which an antistatic agent and a water absorbing agent are mixed and mixed. And a mixed layer formed on the sealing surface, and the mixed layer is provided on the sealing surface.
【００１３】また、請求項９においては、前記ベースフ
ィルム樹脂がポリオレフィン樹脂からなることを特徴と
する請求項１ないし請求項８のいずれか１項に記載の帯
電防止機能を有する積層体としたものである。According to a ninth aspect of the present invention, the laminate having an antistatic function according to any one of the first to eighth aspects is characterized in that the base film resin is made of a polyolefin resin. Is.
【００１４】また、請求項１０においては、前記水分吸
収層、帯電防止層、混合層、貼合層及び中間層の層厚が
５μｍ以上１００μｍ以下であることを特徴とする請求
項１ないし請求項９のいずれか１項に記載の帯電防止機
能を有する積層体としたものである。Further, in claim 10, the water absorbing layer, the antistatic layer, the mixed layer, the laminating layer and the intermediate layer have a layer thickness of 5 μm or more and 100 μm or less. 9. A laminated body having an antistatic function according to any one of 9 above.
【００１５】また、請求項１１においては、前記帯電防
止剤は前記ベースフィルム樹脂１００重量部に対し０．
１〜５０重量部配合されていることを特徴とする請求項
１ないし請求項１０のいずれか１項に記載の帯電防止機
能を有する積層体としたものである。In the eleventh aspect of the present invention, the antistatic agent is added in an amount of 0.
It is a laminate having an antistatic function according to any one of claims 1 to 10, wherein 1 to 50 parts by weight is blended.
【００１６】また、請求項１２においては、前記帯電防
止剤が非イオン系、アニオン系、カチオン系、両性系、
あるいはポリエチレンオキシド、ポリエーテルエステル
アミド、ポリエーテルアミドイミド、エチレンオキシド
-エピハロヒドリン共重合体、メトキシポリエチレング
リコール（メタ）アクリレート共重合体などのポリエー
テル系、あるいは第四アンモニウム塩基含有（メタ）ア
クリレート共重合体、第四アンモニウム塩基含有マレイ
ミド共重合体、第四アンモニウム塩基含有メタクリルイ
ミド共重合体などの第四アンモニウム塩基系、あるいは
ポリスチレンスルホン酸ソーダなどのスルホン酸系、あ
るいはカルボベタイングラフト共重合体などのベタイン
系、あるいは窒化ホウ素、ホウ素−窒素間で電荷移動を
行う機構などを含む高分子型からなることを特徴とする
請求項１ないし請求項１１のいずれか１項に記載の帯電
防止機能を有する積層体としたものである。In the twelfth aspect, the antistatic agent is a nonionic type, anionic type, cationic type, amphoteric type,
Or polyethylene oxide, polyether ester amide, polyether amide imide, ethylene oxide
-Epihalohydrin copolymer, polyether type such as methoxy polyethylene glycol (meth) acrylate copolymer, or quaternary ammonium salt group-containing (meth) acrylate copolymer, quaternary ammonium salt group-containing maleimide copolymer, quaternary ammonium salt group Conducting charge transfer between quaternary ammonium salt groups such as methacrylimide copolymers, sulfonic acid groups such as sodium polystyrene sulfonate, betaine groups such as carbobetaine graft copolymers, boron nitride, boron-nitrogen A laminate having an antistatic function according to any one of claims 1 to 11, which is made of a polymer type including a mechanism and the like.
【００１７】また、請求項１３においては、前記水分吸
収剤が合成ゼオライト、モンモリロナイト、活性炭など
のケージ化合物、あるいはポリビニルアルコール、ポリ
アクリル酸、ポリアクリル酸塩、カルボキシルメチルセ
ルロース、ポリグルコール、アイオノマー、ヒドロキシ
エチルセルロースなどの湿度依存性のある高分子、ある
いは硫酸マグネシウム、酸化カルシウム、酸化アルミニ
ウム等のいわゆる吸湿剤からなることを特徴とする請求
項１ないし請求項１２のいずれか一項に記載の帯電防止
機能を有する積層体としたものである。Further, in claim 13, the water absorbent is a cage compound such as synthetic zeolite, montmorillonite, activated carbon, or polyvinyl alcohol, polyacrylic acid, polyacrylic acid salt, carboxymethyl cellulose, polyglycol, ionomer, hydroxyethyl cellulose. 13. The antistatic function according to any one of claims 1 to 12, which comprises a humidity-dependent polymer such as or a so-called hygroscopic agent such as magnesium sulfate, calcium oxide, or aluminum oxide. It is a laminated body having.
【００１８】さらにまた、請求項１４においては、請求
項１ないし請求項１４のいずれか一項に記載の帯電防止
機能を有する積層体の最内層の表面抵抗は２０±５℃、
４０±１０％ＲＨ〜６５±１０％ＲＨの測定環境下で１
０8〜１０12Ω／□の範囲であることを特徴とする帯電
防止機能を有する積層体としたものである。Furthermore, in claim 14, the surface resistance of the innermost layer of the laminate having an antistatic function according to any one of claims 1 to 14 is 20 ± 5 ° C.,
1 under the measurement environment of 40 ± 10% RH to 65 ± 10% RH
It is a laminate having an antistatic function, which is in the range of 0 8 to 10 12 Ω / □.
【００１９】[0019]
【発明の実施の形態】本発明の帯電防止機能を有する積
層体は、ベースフィルム樹脂に帯電防止性能を有する親
水性高分子型帯電防止剤を配合した帯電防止層と、ベー
スフィルム樹脂に水分誘引剤としての水分吸収剤を配合
した水分吸収層と、ベースフィルム樹脂に帯電防止剤及
び水分吸収剤とを混合配合した混合層と、貼合層と、中
間層とから構成されており、特に、多層構成の積層体で
は高密度な層を中間層あるいは貼合層に用いた三層以上
の積層体もあり、積層体がシーラントしてのシール性を
保持しながら帯電防止機能及び水分調整機能を有するク
リーン性を必要とする包装材を提供するものである。BEST MODE FOR CARRYING OUT THE INVENTION A laminate having an antistatic function of the present invention comprises an antistatic layer containing a hydrophilic polymer type antistatic agent having an antistatic property in a base film resin and a water attracting agent in the base film resin. A water absorbing layer containing a water absorbing agent as an agent, a mixed layer containing a base film resin mixed with an antistatic agent and a water absorbing agent, a laminating layer, and an intermediate layer. There are also multi-layered laminates with three or more layers in which a high-density layer is used as an intermediate layer or a laminating layer, and the laminate has an antistatic function and a moisture adjusting function while maintaining sealability as a sealant. The present invention provides a packaging material that requires cleanliness.
【００２０】以下、本発明の実施の形態につき説明す
る。請求項１に係わる発明は、図１（ａ）に示すよう
な、ベース樹脂に帯電防止剤を配合した帯電防止層１１
とベース樹脂に水分吸収剤を配合した水分吸収層２１の
２層構成からなる積層体１０と、図１（ｂ）に示すよう
な、帯電防止層１１と水分吸収層２１と水分吸収層２１
ａとからなる３層構成の積層体１０ａであって、いずれ
も帯電防止層１１をシール面に配置している。帯電防止
層１１で帯電防止機能を、水分吸収層２１で水分調整機
能を持たせたものである。水分吸収剤を高密度ポリエチ
レン中に配合することで層全体の水分保湿性を高めてい
る。Embodiments of the present invention will be described below. The invention according to claim 1 is, as shown in FIG. 1A, an antistatic layer 11 in which an antistatic agent is mixed with a base resin.
A laminate 10 having a two-layer structure of a water absorption layer 21 in which a water absorption agent is mixed with a base resin, and an antistatic layer 11, a water absorption layer 21, and a water absorption layer 21 as shown in FIG. 1B.
In the laminated body 10a having a three-layer structure including a and a, the antistatic layer 11 is disposed on the sealing surface. The antistatic layer 11 has an antistatic function, and the moisture absorbing layer 21 has a moisture adjusting function. By blending a water absorbent in high-density polyethylene, the moisture retention of the entire layer is enhanced.
【００２１】請求項２に係わる発明は、図２（ａ）に示
すような、ベース樹脂に帯電防止剤と水分吸収剤を混合
配合した混合層３１からなる混合体２０と、図２（ｂ）
に示すような、混合層３１と混合層３１ａと混合層３１
ｂとからなる３層構成の積層体２０ａであって、混合層
３１、３１ａ、３１ｂで、帯電防止機能と水分調整機能
をもたせたものである。水分吸収剤を帯電防止剤と同一
の層に配合することで、保湿性を高めた層の中で帯電防
止性を発現させる。The invention according to claim 2 is, as shown in FIG. 2 (a), a mixture 20 comprising a mixed layer 31 in which an antistatic agent and a moisture absorbent are mixed and mixed with a base resin, and FIG. 2 (b).
, The mixed layer 31, the mixed layer 31a, and the mixed layer 31
In the laminated body 20a having a three-layered structure including b, the mixed layers 31, 31a, and 31b have an antistatic function and a moisture adjusting function. By blending the moisture absorbent in the same layer as the antistatic agent, the antistatic property is exhibited in the layer having improved moisture retention.
【００２２】請求項３に係わる発明は、混合層３１と水
分吸収層２１を組み合わせたものであって、図３（ａ）
に示すような、混合層３１と水分吸収層２１とからなる
２層構成の積層体３０と、図３（ｂ）に示すような、混
合層３１と水分吸収層２１と水分吸収層２１ａとからな
る３層構成の積層体３０ｂとがある。水分吸収層を混合
層の後ろに配置することで、保湿性が混合層の中でより
発現し易くなる。The invention according to claim 3 is a combination of the mixing layer 31 and the moisture absorbing layer 21, which is shown in FIG.
The laminated body 30 having a two-layer structure including the mixed layer 31 and the moisture absorbing layer 21 as shown in FIG. 3 and the mixed layer 31, the moisture absorbing layer 21, and the moisture absorbing layer 21a as shown in FIG. 3B. And a laminated body 30b having a three-layer structure. By arranging the water absorption layer behind the mixed layer, the moisturizing property is more easily exhibited in the mixed layer.
【００２３】請求項４に係わる発明は、図４に示すよう
な、帯電防止層１１と水分吸収層２１とベースフィルム
樹脂からなる貼合層４１とからなる３層構成の積層体４
０であって、基材面に貼合層４１を、シール面に帯電防
止層１１を配置したものである。水分吸収剤と帯電防止
剤の併用効果に加え、基材との貼合を考慮して貼合層を
設ける。図１０は積層体４０を用いて物品をシールした
後の水分（Ｈ2Ｏ）の挙動を模式的に示したもので、物
品と接する面から帯電防止層１１及び水分吸収層２１が
配置されているため、物品からでる水分の急激な変化す
なわち水分の吸収や放出に時間的・量的遅延効果をもた
らすことで数年にわたって常時、帯電防止性能が維持さ
れる。The invention according to claim 4 is, as shown in FIG. 4, a three-layered laminate 4 comprising an antistatic layer 11, a moisture absorbing layer 21 and a laminating layer 41 made of a base film resin.
It is 0, and the bonding layer 41 is arranged on the base material surface and the antistatic layer 11 is arranged on the seal surface. In addition to the combined effect of the water absorbent and the antistatic agent, the bonding layer is provided in consideration of bonding with the base material. FIG. 10 schematically shows the behavior of moisture (H 2 O) after the article is sealed by using the laminate 40, in which the antistatic layer 11 and the moisture absorption layer 21 are arranged from the surface in contact with the article. Therefore, the antistatic performance is constantly maintained for several years by providing a time / quantity delaying effect on the rapid change in the water content of the article, that is, the absorption and release of the water content.
【００２４】請求項５に係わる発明は、図５（ａ）に示
すような、混合層３１と貼合層４１とからなる２層構成
の積層体５０と、図５（ｂ）に示すような、混合層３１
と混合層３１ａと貼合層４１とからなる３層構成の積層
体５０ａであって、いずれも基材面に貼合層４１を、シ
ール面に混合層３１を配置したものである。水分吸収剤
と帯電防止剤の併用効果に加え、基材との貼合を考慮し
て貼合層を設ける。The invention according to claim 5 is a laminated body 50 having a two-layer structure including a mixed layer 31 and a bonding layer 41 as shown in FIG. 5 (a), and as shown in FIG. 5 (b). , Mixed layer 31
A laminated body 50a having a three-layer structure including a mixed layer 31a and a bonding layer 41, each of which has the bonding layer 41 on the base material surface and the mixed layer 31 on the sealing surface. In addition to the combined effect of the water absorbent and the antistatic agent, the bonding layer is provided in consideration of bonding with the base material.
【００２５】請求項６に係わる発明は、図６に示すよう
な、混合層３１と水分吸収層２１と貼合層４１とからな
る３層構成の積層体６０であって、基材面に貼合層４１
を、シール面に混合層３１を配置したものである。水分
吸収剤と帯電防止剤の併用効果に加え、基材との貼合を
考慮して貼合層を設ける。The invention according to claim 6 is a laminated body 60 having a three-layer structure comprising a mixed layer 31, a moisture absorbing layer 21 and a bonding layer 41 as shown in FIG. Ply 41
And the mixed layer 31 is arranged on the sealing surface. In addition to the combined effect of the water absorbent and the antistatic agent, the bonding layer is provided in consideration of bonding with the base material.
【００２６】請求項７に係わる発明は、図７に示すよう
な、帯電防止層１１とベースフィルム樹脂からなる中間
層５１と水分吸収層２１とからなる３層構成の積層体７
０であって、基材面に水分吸収層２１を、シール面に帯
電防止層１１を、水分吸収層２１と帯電防止層１１との
間に中間層５１を配置したものである。中間層に高密度
ポリエチレン樹脂層を設けて、水分の保湿性を高める。
貼合層は水分吸収層を兼用する。The invention according to claim 7 is, as shown in FIG. 7, a three-layer laminate 7 comprising an antistatic layer 11, an intermediate layer 51 made of a base film resin, and a moisture absorbing layer 21.
The moisture absorption layer 21 is disposed on the base material surface, the antistatic layer 11 is disposed on the sealing surface, and the intermediate layer 51 is disposed between the moisture absorption layer 21 and the antistatic layer 11. A high-density polyethylene resin layer is provided on the intermediate layer to enhance the moisture retention.
The laminating layer also serves as the moisture absorbing layer.
【００２７】請求項８に係わる発明は、図８に示すよう
な、混合層３１とベースフィルム樹脂からなる中間層５
１と水分吸収層２１とからなる３層構成の積層体８０で
あって、基材面に水分吸収層２１を、シール面に混合層
３１を、水分吸収層２１と混合層３１との間に中間層５
１を配置したものである。貼合層は水分吸収層を兼用す
る。The invention according to claim 8 is, as shown in FIG. 8, an intermediate layer 5 comprising a mixed layer 31 and a base film resin.
A laminated body 80 having a three-layer structure consisting of 1 and a moisture absorbing layer 21, wherein the moisture absorbing layer 21 is provided on the substrate surface, the mixed layer 31 is provided on the sealing surface, and the moisture absorbing layer 21 and the mixed layer 31 are provided between the moisture absorbing layer 21 and the mixed layer 31. Middle layer 5
1 is arranged. The laminating layer also serves as the moisture absorbing layer.
【００２８】請求項８に係わる発明の他の実施例とし
て、図９に、混合層３１と中間層５１と貼合層４１とか
らなる３層構成の積層体９０の例を示す。これは、シー
ル面に混合層３１を、基材面に中間層５１と貼合層４１
を配置したものである。水分吸収剤と帯電防止剤の併用
効果に加え、基材との貼合を考慮して貼合層を設ける。As another embodiment of the invention according to claim 8, FIG. 9 shows an example of a laminate 90 having a three-layered structure including a mixed layer 31, an intermediate layer 51 and a bonding layer 41. This includes the mixed layer 31 on the seal surface and the intermediate layer 51 and the bonding layer 41 on the base material surface.
Is arranged. In addition to the combined effect of the water absorbent and the antistatic agent, the bonding layer is provided in consideration of bonding with the base material.
【００２９】請求項９に係わる発明は、ベースフィルム
樹脂に関する発明で、シール面に配置される帯電防止層
の樹脂としては、ポリオレフィン系の樹脂例えば、低密
度ポリエチレン、直鎖低密度ポリエチレンが使用され、
ヒートシール性とクリーン性を必要とする樹脂として好
適である。また、貼合層、中間層及び水分吸収層の基材
面に配置される樹脂としてはポリオレフィン系の樹脂例
えば、直鎖低密度ポリエチレン、中密度ポリエチレン、
高密度ポリエチレンが好ましい。また、帯電防止層、貼
合層、中間層及び水分吸収層の樹脂選定の基準は、基材
面に形成された貼合層、中間層及び水分吸収層の樹脂密
度はシール面に形成された帯電防止層の樹脂密度より
０．０１５以上高く設定されていることが望ましい。こ
れにより、水分吸収層の保湿性が向上する。The invention according to claim 9 relates to a base film resin, wherein a polyolefin resin such as low density polyethylene or linear low density polyethylene is used as the resin of the antistatic layer disposed on the sealing surface. ,
It is suitable as a resin that requires heat sealability and cleanliness. Further, as the resin disposed on the substrate surface of the bonding layer, the intermediate layer and the moisture absorbing layer, a polyolefin resin, for example, linear low density polyethylene, medium density polyethylene,
High density polyethylene is preferred. The criteria for resin selection of the antistatic layer, the laminating layer, the intermediate layer and the moisture absorbing layer are that the resin densities of the laminating layer, the intermediate layer and the moisture absorbing layer formed on the substrate surface are formed on the sealing surface. It is desirable that the resin density is set to be 0.015 or more higher than the resin density of the antistatic layer. This improves the moisturizing property of the moisture absorbing layer.
【００３０】請求項１０に係わる発明は、上記積層体を
構成している水分吸収層、帯電防止層、混合層、貼合層
及び中間層の膜厚は５〜１００μｍの間で形成されてい
る。好ましくは１０〜５０μｍである。According to the tenth aspect of the present invention, the moisture absorbing layer, the antistatic layer, the mixed layer, the laminating layer and the intermediate layer constituting the above-mentioned laminated body are formed to have a thickness of 5 to 100 μm. . It is preferably 10 to 50 μm.
【００３１】請求項１１に係わる発明は、帯電防止剤は
ベースフィルム樹脂１００重量部に対し０．１〜５０重
量部を配合して、帯電防止層を形成する。配合割合は帯
電防止剤の種類、分子量等で決まる。In the invention according to claim 11, 0.1-50 parts by weight of the antistatic agent is mixed with 100 parts by weight of the base film resin to form the antistatic layer. The blending ratio is determined by the type of antistatic agent, the molecular weight and the like.
【００３２】請求項１２に係わる発明は、帯電防止層を
形成するために配合する帯電防止剤に関する発明であっ
て、非イオン系、アニオン系、カチオン系、両性系、あ
るいはポリエチレンオキシド、ポリエーテルエステルア
ミド、ポリエーテルアミドイミド、エチレンオキシド-
エピハロヒドリン共重合体、メトキシポリエチレングリ
コール（メタ）アクリレート共重合体などのポリエーテ
ル系、あるいは第四アンモニウム塩基含有（メタ）アク
リレート共重合体、第四アンモニウム塩基含有マレイミ
ド共重合体、第四アンモニウム塩基含有メタクリルイミ
ド共重合体などの第四アンモニウム塩基系、あるいはポ
リスチレンスルホン酸ソーダなどのスルホン酸系、ある
いはカルボベタイングラフト共重合体などのベタイン
系、あるいは窒化ホウ素、ホウ素−窒素間で電荷移動を
行う機構などを含む高分子型が使用でき、適宜選択して
用いる。The invention according to claim 12 is an invention relating to an antistatic agent, which is blended to form an antistatic layer, comprising a nonionic, anionic, cationic, amphoteric, polyethylene oxide or polyether ester. Amide, polyether amide imide, ethylene oxide-
Polyether type such as epihalohydrin copolymer, methoxy polyethylene glycol (meth) acrylate copolymer, or quaternary ammonium salt group-containing (meth) acrylate copolymer, quaternary ammonium salt group-containing maleimide copolymer, quaternary ammonium salt group Mechanism of charge transfer between quaternary ammonium salt group such as methacrylimide copolymer, sulfonic acid such as polystyrene sulfonate, betaine such as carbobetaine graft copolymer, boron nitride, boron-nitrogen A polymer type including, for example, can be used and is appropriately selected and used.
【００３３】請求項１３に係わる発明は、水分吸収層を
形成するために配合する水分吸収剤に関する発明であっ
て、合成ゼオライト、モンモリロナイト、活性炭などの
ケージ化合物、あるいはポリビニルアルコール、ポリア
クリル酸、ポリアクリル酸塩、カルボキシルメチルセル
ロース、ポリグルコール、アイオノマー、ヒドロキシエ
チルセルロースなどの湿度依存性のある高分子、あるい
は硫酸マグネシウム、酸化カルシウム、酸化アルミニウ
ム等のいわゆる吸湿剤が使用でき、適宜選択して用い
る。A thirteenth aspect of the present invention relates to a water absorbent compounded to form a water absorbent layer, which is a cage compound such as synthetic zeolite, montmorillonite or activated carbon, or polyvinyl alcohol, polyacrylic acid or polyacetic acid. Humidity-dependent polymers such as acrylate, carboxymethyl cellulose, polyglycol, ionomer, and hydroxyethyl cellulose, or so-called hygroscopic agents such as magnesium sulfate, calcium oxide, and aluminum oxide can be used and appropriately selected and used.
【００３４】請求項１４に係わる発明は、積層体のシー
ル面の最内層の表面抵抗に関する発明で、２０±５℃、
４０±１０％〜６５±１０％ＲＨの測定環境下で１０8
〜１０12Ω／□の表面抵抗を再現するようにしたもので
ある。主に水分吸収剤の配合量で調整する。The invention according to claim 14 is the invention relating to the surface resistance of the innermost layer of the sealing surface of the laminate, which is 20 ± 5 ° C.
10 8 under the measurement environment of 40 ± 10% to 65 ± 10% RH
The surface resistance of -10 12 Ω / □ is reproduced. It is mainly adjusted by adjusting the amount of water absorbent.
【００３５】[0035]
【実施例】以下実施例により詳細に説明する。
＜実施例１＞汎用低密度ポリエチレン樹脂（ｄ＝０．９
２０）１００重量部に親水性高分子樹脂からなる帯電防
止剤を５重量部配合したペレット樹脂と、汎用高密度ポ
リエチレン樹脂（ｄ＝０．９５０）１００重量部にポリ
アクリル酸変性樹脂からなる水分吸収剤を５重量部配合
したペレット樹脂とを２層の共押し成形装置により成膜
して、１０μｍ厚の帯電防止層１１と２０μｍ厚の水分
吸収層２１からなる２層積層体１０を作製した。Embodiments will be described in detail below with reference to embodiments. <Example 1> General-purpose low-density polyethylene resin (d = 0.9
20) 100 parts by weight of a pellet resin containing 5 parts by weight of an antistatic agent made of a hydrophilic polymer, and 100 parts by weight of a general-purpose high-density polyethylene resin (d = 0.950) made of a polyacrylic acid-modified resin as a water content. A pellet resin containing 5 parts by weight of an absorbent was formed into a film by a two-layer co-extrusion molding apparatus to prepare a two-layer laminate 10 including an antistatic layer 11 having a thickness of 10 μm and a moisture absorbing layer 21 having a thickness of 20 μm. .
【００３６】＜実施例２＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部配合したペレット樹脂と、
汎用高密度ポリエチレン樹脂（ｄ＝０．９５０）１００
重量部にポリアクリル酸変性樹脂からなる水分吸収剤を
５重量部配合したペレット樹脂と、汎用低密度ポリエチ
レン樹脂（ｄ＝０．９２０）とを３層の共押し成形装置
により成膜して、１０μｍ厚の帯電防止層１１と２０μ
ｍ厚の水分吸収層２１と１０μｍ厚の貼合層４１とから
なる３層積層体４０を作製した。Example 2 A pellet resin in which 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) and 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin are blended,
General-purpose high-density polyethylene resin (d = 0.950) 100
A pellet resin in which 5 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin is mixed in parts by weight and a general-purpose low-density polyethylene resin (d = 0.920) are formed into a film by a three-layer co-extrusion molding apparatus, 10 μm thick antistatic layer 11 and 20 μm
A three-layer laminate 40 composed of the water absorbing layer 21 having a thickness of m and the bonding layer 41 having a thickness of 10 μm was produced.
【００３７】＜実施例３＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部配合したペレット樹脂と、
汎用高密度ポリエチレン樹脂（ｄ＝０．９５０）１００
重量部にポリアクリル酸変性樹脂からなる水分吸収剤を
５重量部配合したペレット樹脂と、汎用低密度ポリエチ
レン樹脂（ｄ＝０．９ ０）とを３層の共押しインフレ
ーション成形装置により成膜して、１０μｍ厚の帯電防
止層１１と２０μｍ厚の中間層５１と１０μｍ厚の水分
吸収層２１とからなる３層積層体７０を作製した。Example 3 A pellet resin in which 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) and 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin are blended,
General-purpose high-density polyethylene resin (d = 0.950) 100
A pellet resin in which 5 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin is mixed in parts by weight and a general-purpose low-density polyethylene resin (d = 0.90) are formed into a film by a three-layer co-extrusion inflation molding apparatus. As a result, a three-layer laminate 70 including the antistatic layer 11 having a thickness of 10 μm, the intermediate layer 51 having a thickness of 20 μm, and the moisture absorbing layer 21 having a thickness of 10 μm was produced.
【００３８】＜実施例４＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部配合したペレット樹脂と、
汎用高密度ポリエチレン樹脂（ｄ＝０．９５０）１００
重量部にポリアクリル酸変性樹脂からなる水分吸収剤を
５重量部配合したペレット樹脂とを３層の共押し成形装
置により成膜して、１０μｍ厚の帯電防止層１１と２０
μｍ厚の水分吸収層２１と１０μｍ厚の水分吸収層２１
ａとからなる３層積層体１０ａを作製した。Example 4 Pellet resin in which 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) was mixed with 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin,
General-purpose high-density polyethylene resin (d = 0.950) 100
A pellet resin in which 5 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin is mixed in parts by weight is formed into a film by a three-layer co-extrusion molding apparatus to form 10 μm thick antistatic layers 11 and 20.
Water absorption layer 21 with a thickness of μm and water absorption layer 21 with a thickness of 10 μm
A three-layer laminate 10a including a and a was produced.
【００３９】＜実施例５＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部、ポリアクリル酸変性樹脂
からなる水分吸収剤を５重量部配合したペレット樹脂を
３層の共押しインフレーション成形装置により成膜し
て、１０μｍ厚の混合層３１からなる混合体２０を作製
した。Example 5 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) was mixed with 5 parts by weight of an antistatic agent composed of a hydrophilic polymer resin and a water absorbent composed of a polyacrylic acid-modified resin. The pellet resin mixed with 5 parts by weight was formed into a film by a three-layer co-extrusion inflation molding apparatus to prepare a mixture 20 including a mixed layer 31 having a thickness of 10 μm.
【００４０】＜実施例６＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を 重量部配合したペレット樹脂と
ポリアクリル酸変性樹脂からなる水分吸収剤を 重量
部配合したペレット樹脂と、汎用 密度ポリエチレン樹
脂（ｄ＝０．９ ０）とを３層の共押しインフレーショ
ン成形装置により成膜して、１０μｍ厚の混合層３１と
２０μｍ厚の貼合層４１とからなる３層積層体５０を作
製した。<Example 6> 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) mixed with parts by weight of an antistatic agent made of a hydrophilic polymer resin, and water made of a polyacrylic acid-modified resin. Pellet resin containing parts by weight of an absorbent and general-purpose density polyethylene resin (d = 0.90) were formed into a film by a three-layer co-extrusion inflation molding apparatus, and a mixed layer 31 of 10 μm thickness and a sticking layer of 20 μm thickness were formed. A three-layer laminate 50 including the composite layer 41 was produced.
【００４１】＜実施例７＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部、ポリアクリル酸変性樹脂
からなる水分吸収剤を５重量部配合したペレット樹脂
と、汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）と
を３層の共押し成形装置により成膜して、１０μｍ厚の
混合層３１と２０μｍ厚の中間層５１と１０μｍ厚の貼
合層４１とからなる３層積層体９０を作製した。Example 7 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920), 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin were added. A pellet resin mixed with 5 parts by weight and a general-purpose low-density polyethylene resin (d = 0.920) were formed into a film by a three-layer co-extrusion molding apparatus to form a mixed layer 31 having a thickness of 10 μm and an intermediate layer 51 having a thickness of 20 μm. A three-layer laminated body 90 including the bonding layer 41 having a thickness of 10 μm was produced.
【００４２】＜実施例８＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部、ポリアクリル酸変性樹脂
からなる水分吸収剤を５重量部配合したペレット樹脂と
汎用低密度ポリエチレン樹脂（ｄ＝０．９０）とを３層
の共押しインフレーション成形装置により成膜して、１
０μｍ厚の混合層３１と２０μｍ厚の混合層３１ａと１
０μｍ厚の貼合層４１とからなる３層積層体５０ａを作
製した。Example 8 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920), 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin were added. A pellet resin blended with 5 parts by weight and a general-purpose low-density polyethylene resin (d = 0.90) were formed into a film by a three-layer co-extrusion inflation molding apparatus, and 1
0 μm thick mixed layer 31 and 20 μm thick mixed layer 31a and 1
A three-layer laminate 50a including the bonding layer 41 having a thickness of 0 μm was produced.
【００４３】＜実施例９＞汎用低密度ポリエチレン樹脂
（ｄ＝０．９２０）１００重量部に親水性高分子樹脂か
らなる帯電防止剤を５重量部、ポリアクリル酸変性樹脂
からなる水分吸収剤を５重量部配合したペレット樹脂を
３層の共押し成形装置により成膜して、１０μｍ厚の混
合層３１と２０μｍ厚の混合層３１ａと１０μｍ厚の混
合層３１ｂとからなる３層積層体２０ａを作製した。Example 9 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920), 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin were added. A pellet resin mixed with 5 parts by weight was formed into a film by a three-layer co-extrusion molding apparatus to form a three-layer laminate 20a including a mixed layer 31 having a thickness of 10 μm, a mixed layer 31a having a thickness of 20 μm, and a mixed layer 31b having a thickness of 10 μm. It was made.
【００４４】＜実施例１０＞汎用低密度ポリエチレン樹
脂（ｄ＝０．９２０）１００重量部に親水性高分子樹脂
からなる帯電防止剤を５重量部、ポリアクリル酸変性樹
脂からなる水分吸収剤を５重量部配合したペレット樹脂
と汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）１０
０重量部にポリアクリル酸変性樹脂からなる水分吸収剤
を５重量部配合したペレット樹脂とを３層の共押し成形
装置により成膜して、１０μｍ厚の混合層３１と２０μ
ｍ厚の水分吸収層２１とからなる２層積層体３０を作製
した。<Example 10> 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) was added with 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin. 5 parts by weight of pellet resin and general-purpose low-density polyethylene resin (d = 0.920) 10
A pellet resin in which 0 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin is mixed with 5 parts by weight is formed into a film by a three-layer co-extrusion molding apparatus to form a mixed layer 31 and a layer having a thickness of 10 μm.
A two-layer laminate 30 composed of the water absorbing layer 21 having a thickness of m was produced.
【００４５】＜実施例１１＞汎用低密度ポリエチレン樹
脂（ｄ＝０．９２０）１００重量部に親水性高分子樹脂
からなる帯電防止剤を５重量部、ポリアクリル酸変性樹
脂からなる水分吸収剤を５重量部配合したペレット樹脂
と汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）１０
０重量部にポリアクリル酸変性樹脂からなる水分吸収剤
とを５重量部配合したペレット樹脂と汎用低密度ポリエ
チレン樹脂（ｄ＝０．９２０）とを３層の共押し成形装
置により成膜して、１０μｍ厚の混合層３１と２０μｍ
厚の水分吸収層２１と１０μｍ厚の貼合層４１ととから
なる３層積層体６０を作製した。Example 11 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920), 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin were added. 5 parts by weight of pellet resin and general-purpose low-density polyethylene resin (d = 0.920) 10
A pellet resin in which 5 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin was mixed with 0 parts by weight and a general-purpose low-density polyethylene resin (d = 0.920) were formed into a film by a three-layer co-extrusion molding apparatus. 10 μm thick mixed layer 31 and 20 μm
A three-layer laminate 60 composed of the thick water absorption layer 21 and the 10 μm thick bonding layer 41 was produced.
【００４６】＜実施例１２＞汎用低密度ポリエチレン樹
脂（ｄ＝０．９２０）１００重量部に親水性高分子樹脂
からなる帯電防止剤を５重量部、ポリアクリル酸変性樹
脂からなる水分吸収剤を５重量部配合したペレット樹脂
と汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）１０
０重量部にポリアクリル酸変性樹脂からなる水分吸収剤
とを５重量部配合したペレット樹脂と汎用低密度ポリエ
チレン樹脂（ｄ＝０．９２０）とを３層の共押し成形装
置により成膜して、１０μｍ厚の混合層３１と２０μｍ
厚の中間層５１と１０μｍ厚の水分吸収層２１とからな
る３層積層体８０を作製した。<Example 12> 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) was added with 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin. 5 parts by weight of pellet resin and general-purpose low-density polyethylene resin (d = 0.920) 10
A pellet resin in which 5 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin was mixed with 0 parts by weight and a general-purpose low-density polyethylene resin (d = 0.920) were formed into a film by a three-layer co-extrusion molding apparatus. 10 μm thick mixed layer 31 and 20 μm
A three-layer laminate 80 including the intermediate layer 51 having a thickness and the moisture absorbing layer 21 having a thickness of 10 μm was produced.
【００４７】＜実施例１３＞汎用低密度ポリエチレン樹
脂（ｄ＝０．９２０）１００重量部に親水性高分子樹脂
からなる帯電防止剤を５重量部、ポリアクリル酸変性樹
脂からなる水分吸収剤を５重量部配合したペレット樹脂
と汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）１０
０重量部にポリアクリル酸変性樹脂からなる水分吸収剤
とを５重量部配合したペレット樹脂とを３層の共押し成
形装置により成膜して、１０μｍ厚の混合層３１と２０
μｍ厚の水分吸収層２１と１０μｍ厚の水分吸収層２１
ａとからなる３層積層体３０ａを作製した。Example 13 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920) was mixed with 5 parts by weight of an antistatic agent composed of a hydrophilic polymer resin and a water absorbent composed of a polyacrylic acid-modified resin. 5 parts by weight of pellet resin and general-purpose low-density polyethylene resin (d = 0.920) 10
0 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin and 5 parts by weight of a pellet resin were formed into a film by a three-layer co-extrusion molding apparatus, and mixed layers 31 and 20 having a thickness of 10 μm were formed.
Water absorption layer 21 with a thickness of μm and water absorption layer 21 with a thickness of 10 μm
A three-layer laminate 30a composed of a and a was produced.
【００４８】＜実施例１４＞汎用低密度ポリエチレン樹
脂（ｄ＝０．９２０）１００重量部に親水性高分子樹脂
からなる帯電防止剤を５重量部、ポリアクリル酸変性樹
脂からなる水分吸収剤を５重量部配合したペレット樹脂
と汎用低密度ポリエチレン樹脂（ｄ＝０．９２０）１０
０重量部にポリアクリル酸変性樹脂からなる水分吸収剤
を５重量部配合したペレット樹脂とを３層の共押し成形
装置により成膜して、１０μｍ厚の混合層３１と２０μ
ｍ厚の混合層３１ａと１０μｍ厚の水分吸収層２１とか
らなる３層積層体３０ｂを作製した。Example 14 100 parts by weight of a general-purpose low-density polyethylene resin (d = 0.920), 5 parts by weight of an antistatic agent made of a hydrophilic polymer resin, and a water absorbent made of a polyacrylic acid-modified resin were added. 5 parts by weight of pellet resin and general-purpose low-density polyethylene resin (d = 0.920) 10
A pellet resin in which 0 parts by weight of a water absorbent composed of a polyacrylic acid-modified resin is mixed with 5 parts by weight is formed into a film by a three-layer co-extrusion molding apparatus to form a mixed layer 31 and a layer having a thickness of 10 μm.
A three-layer laminate 30b composed of the mixed layer 31a having a thickness of m and the moisture absorbing layer 21 having a thickness of 10 μm was produced.
【００４９】実施例１〜実施例１４の積層体サンプルの
表面抵抗を測定環境２０℃、４０％ＲＨ及び２０℃、６
５％ＲＨの測定環境下で、ＨｉｒｅｔａＭＣＰ−ＨＴ２
５０（三菱化学製）にて測定した結果を図１１に示す。
いずれも表面抵抗は１０8〜１０12Ω／□の範囲に入っ
ており、帯電防止性能を有することが確認された。つま
り、水分の保持を必要とする親水性の帯電防止剤に対し
て、水分吸収剤を各層構成の中で併用することで、低湿
度下（４０％ＲＨ）でも表面抵抗を１０8〜１０12Ω／
□の範囲に入れることが可能となった。The surface resistances of the laminate samples of Examples 1 to 14 were measured in an environment of 20 ° C., 40% RH and 20 ° C., 6
Under the measurement environment of 5% RH, HiretaMCP-HT2
The result measured with 50 (made by Mitsubishi Chemical) is shown in FIG.
The surface resistance was in the range of 10 8 to 10 12 Ω / □ in all cases, and it was confirmed to have antistatic performance. That is, by using a water absorbent in combination with a hydrophilic antistatic agent that needs to retain water in each layer constitution, the surface resistance is 10 8 to 10 12 even under low humidity (40% RH). Ω /
It became possible to put it in the range of □.
【００５０】[0050]
【発明の効果】上記したように本発明の帯電防止機能を
有する積層体は、帯電防止機能と水分調整機能を有する
シーラントから構成されているため、半導体ウエハー、
プリント基板及びＩＣチップ等の物品のクリーン性、帯
電防止性を要求される包装材料として最適である。さら
に、物品を包装後も水分吸収層または混合層にて、水分
の吸収や放出に時間的・量的遅延効果をもたらすこと
で、数年に渡って常時、帯電防止性能を保持する効果を
有する。As described above, since the laminate having the antistatic function of the present invention is composed of the sealant having the antistatic function and the moisture adjusting function, the semiconductor wafer,
It is optimal as a packaging material that requires cleanliness and antistatic properties for articles such as printed circuit boards and IC chips. Further, even after packaging the article, the moisture absorption layer or the mixed layer has a time-quantitative delay effect on the absorption and release of moisture, and thus has the effect of always maintaining the antistatic performance for several years. .
【図１】（ａ）は、請求項１に係わる本発明の帯電防止
機能を有する積層体の一実施例を示す模式構成部分断面
図である。（ｂ）は、請求項１に係わる本発明の帯電防
止機能を有する積層体の他の実施例を示す模式構成部分
断面図である。FIG. 1 (a) is a schematic cross-sectional view showing a partial construction of an embodiment of a laminate having an antistatic function of the present invention according to claim 1. FIG. (B) is a schematic structural partial sectional view showing another embodiment of the laminate having the antistatic function of the present invention according to claim 1.
【図２】（ａ）は、請求項２に係わる本発明の帯電防止
機能を有する積層体の一実施例を示す模式構成部分断面
図である。（ｂ）は、請求項２に係わる本発明の帯電防
止機能を有する積層体の他の実施例を示す模式構成部分
断面図である。FIG. 2A is a partial cross-sectional view of a schematic configuration showing an embodiment of a laminate having an antistatic function of the present invention according to claim 2. (B) is a schematic partial cross-sectional view showing another embodiment of the laminate having the antistatic function of the present invention according to claim 2.
【図３】（ａ）は、請求項３に係わる本発明の帯電防止
機能を有する積層体の一実施例を示す模式構成部分断面
図である。（ｂ）は、請求項３に係わる本発明の帯電防
止機能を有する積層体の他の実施例を示す模式構成部分
断面図である。（ｃ）は、請求項３に係わる本発明の帯
電防止機能を有する積層体の他の実施例を示す模式構成
部分断面図である。FIG. 3A is a partial cross-sectional view of a schematic configuration showing an embodiment of a laminate having an antistatic function of the present invention according to claim 3; (B) is a schematic partial cross-sectional view showing another embodiment of the laminate having an antistatic function of the present invention according to claim 3. (C) is a schematic structural partial sectional view showing another embodiment of the laminate having the antistatic function of the present invention according to claim 3.
【図４】請求項４に係わる本発明の帯電防止機能を有す
る積層体の一実施例を示す模式構成部分断面図である。FIG. 4 is a schematic partial cross-sectional view showing one embodiment of a laminate having an antistatic function of the present invention according to claim 4.
【図５】（ａ）は、請求項５に係わる本発明の帯電防止
機能を有する積層体の一実施例を示す模式構成部分断面
図である。（ｂ）は、請求項５に係わる本発明の帯電防
止機能を有する積層体の他の実施例を示す模式構成部分
断面図である。FIG. 5A is a partial cross-sectional view of a schematic configuration showing an embodiment of a laminate having an antistatic function of the present invention according to claim 5; (B) is a schematic structural partial sectional view showing another embodiment of the laminate having an antistatic function of the present invention according to claim 5.
【図６】請求項６に係わる本発明の帯電防止機能を有す
る積層体の一実施例を示す模式構成部分断面図である。FIG. 6 is a partial cross-sectional view of a schematic configuration showing an embodiment of a laminate having an antistatic function of the present invention according to claim 6;
【図７】請求項７に係わる本発明の帯電防止機能を有す
る積層体の一実施例を示す模式構成部分断面図である。FIG. 7 is a schematic partial cross-sectional view showing an embodiment of a laminate having an antistatic function of the present invention according to claim 7;
【図８】請求項８に係わる本発明の帯電防止機能を有す
る積層体の一実施例を示す模式構成部分断面図である。FIG. 8 is a partial cross-sectional view of a schematic configuration showing an embodiment of a laminate having an antistatic function of the present invention according to claim 8.
【図９】請求項８に係わる本発明の帯電防止機能を有す
る積層体の他の実施例を示す模式構成部分断面図であ
る。FIG. 9 is a schematic partial cross-sectional view showing another embodiment of the laminate having the antistatic function of the present invention according to claim 8;
【図１０】本発明の帯電防止機能を有する積層体を用い
て物品をシールした後の水分（Ｈ 2Ｏ）の挙動を模式的
に示した説明図である。FIG. 10 uses a laminate having an antistatic function of the present invention
Moisture (H 2O) behavior is schematic
It is explanatory drawing shown in FIG.
【図１１】実施例で得られた本発明の帯電防止機能を有
する積層体サンプルの表面抵抗測定結果を示す説明図で
ある。FIG. 11 is an explanatory diagram showing the results of measuring the surface resistance of a laminate sample having an antistatic function of the present invention obtained in an example.
１０、１０ａ、２０ａ、３０、３０ａ、４０、５０、５
０ａ、６０、７０、８０、９０……積層体
２０……混合体
１１……帯電防止層
２１、２１ａ……水分吸収層
３１、３１ａ、３１ｂ……混合層
４１……貼合層
５１……中間層10, 10a, 20a, 30, 30a, 40, 50, 5
0a, 60, 70, 80, 90 ... Laminated body 20 ... Mixture 11 ... Antistatic layers 21, 21a ... Moisture absorption layers 31, 31a, 31b ... Mixed layer 41 ... Laminating layer 51 ... Middle class
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｋ 3/34 Ｃ０８Ｋ 3/34 Ｃ０８Ｌ 23/00 Ｃ０８Ｌ 23/00 101/00 101/00 (72)発明者 大矢 将人 東京都台東区台東１丁目５番１号 凸版印 刷株式会社内 Ｆターム(参考） 4F100 AA07A AA18A AA19A AC04A AC10A AJ03A AJ06A AK01A AK01B AK01C AK03A AK03B AK03C AK21A AK25A AK70A BA02 BA03 BA07 BA10A BA10C CA22B CA22C CA30A GB15 JD15A JD15B JD15C JG04 JL12C YY00A YY00B YY00C 4J002 AB033 BB031 BB233 BC122 BE023 BG013 BG072 BQ002 CH022 CH042 CL082 CM042 DA016 DA017 DE086 DE087 DE146 DE147 DG046 DG047 DJ006 DJ007 FD106 GG01Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C08K 3/34 C08K 3/34 C08L 23/00 C08L 23/00 101/00 101/00 (72) Inventor Masato Oya 1-5-1 Taito, Taito-ku, Tokyo Top-term printing company F-term (Reference) 4F100 AA07A AA18A AA19A AC04A AC10A AJ03A AJ06A AK01A AK01B AK01C AK03A AK03B AK15B15C15C15A22C15A22C15A22C15A22C15A22A10A22A15A22A15A22A15A22A15A15A22A15A22A15A22A15A22A15A22A15A22A15A22A15A22A15A22A15A22A15A22A22 JD15C JG04 JL12C YY00A YY00B YY00C 4J002 AB033 BB031 BB233 BC122 BE023 BG013 BG072 BQ002 CH022 CH042 CL082 CM042 DA016 DA017 DE086 DE087 DE146 DE147 DG046 DG047 DJ006 DJ007 FD106 GG01
Claims (14)
た水分吸収層と、ベースフィルム樹脂に帯電防止剤を配
合した帯電防止層とからなり、シール面に前記帯電防止
層を設けたことを特徴とする帯電防止機能を有する積層
体。1. A water absorbing layer containing a base film resin mixed with a water absorbing agent, and an antistatic layer containing a base film resin containing an antistatic agent, wherein the antistatic layer is provided on the sealing surface. And a laminate having an antistatic function.
収剤とを混合配合した混合層からなることを特徴とする
帯電防止機能を有する積層体。2. A laminate having an antistatic function, which comprises a mixed layer in which an antistatic agent and a moisture absorbent are mixed and mixed in a base film resin.
た水分吸収層と、ベースフィルム樹脂に帯電防止剤と水
分吸収剤とを混合配合した混合層とからなり、シール面
に前記混合層を設けたことを特徴とする帯電防止機能を
有する積層体。3. A water absorbing layer in which a water absorbing agent is mixed with a base film resin, and a mixed layer in which an antistatic agent and a moisture absorbing agent are mixed and mixed in a base film resin, and the mixed layer is provided on a sealing surface. A laminate having an antistatic function characterized by the above.
ースフィルム樹脂に水分吸収剤を配合した水分吸収層
と、ベースフィルム樹脂に帯電防止剤を配合した帯電防
止層とからなり、シール面に前記帯電防止層を設けたこ
とを特徴とする帯電防止機能を有する積層体。4. A sealing layer comprising a laminating layer comprising a base film resin, a moisture absorbing layer comprising a base film resin and a moisture absorbing agent, and an antistatic layer comprising a base film resin and an antistatic agent. A laminate having an antistatic function, comprising the antistatic layer.
ースフィルム樹脂に帯電防止剤と水分吸収剤とを混合配
合した混合層とからなり、シール面に前記混合層を設け
たことを特徴とする帯電防止機能を有する積層体。5. A bonding layer made of a base film resin, and a mixed layer in which an antistatic agent and a moisture absorbent are mixed and mixed in the base film resin, and the mixed layer is provided on a sealing surface. A laminated body having an antistatic function.
ースフィルム樹脂に水分吸収剤を配合した水分吸収層
と、ベースフィルム樹脂に帯電防止剤と水分吸収剤とを
混合配合した混合層とからなり、シール面に前記混合層
を設けたことを特徴とする帯電防止機能を有する積層
体。6. A laminating layer comprising a base film resin, a moisture absorbing layer obtained by mixing a moisture absorbing agent with the base film resin, and a mixed layer obtained by mixing and blending an antistatic agent and a moisture absorbing agent with the base film resin. A laminate having an antistatic function, characterized in that the mixed layer is provided on the sealing surface.
た水分吸収層と、ベースフィルム樹脂からなる中間層
と、ベースフィルム樹脂に帯電防止剤を配合した帯電防
止層とからなり、シール面に前記帯電防止層を設けたこ
とを特徴とする帯電防止機能を有する積層体。7. A water absorbing layer comprising a base film resin and a water absorbing agent, an intermediate layer comprising the base film resin, and an antistatic layer comprising a base film resin and an antistatic agent. A laminate having an antistatic function, which is provided with an antistatic layer.
た水分吸収層と、ベースフィルム樹脂からなる中間層
と、ベースフィルム樹脂に帯電防止剤と水分吸収剤とを
混合配合した混合層とからなり、シール面に前記混合層
を設けたことを特徴とする帯電防止機能を有する積層
体。8. A water absorbing layer comprising a base film resin mixed with a water absorbing agent, an intermediate layer comprising the base film resin, and a mixed layer comprising a base film resin mixed with an antistatic agent and a water absorbing agent. A laminate having an antistatic function, characterized in that the mixed layer is provided on the sealing surface.
樹脂からなることを特徴とする請求項１ないし請求項８
のいずれか１項に記載の帯電防止機能を有する積層体。9. The base film resin comprises a polyolefin resin, as claimed in any one of claims 1 to 8.
A laminate having an antistatic function according to any one of 1.
貼合層及び中間層の層厚が５μｍ以上１００μｍ以下で
あることを特徴とする請求項１ないし請求項９のいずれ
か１項に記載の帯電防止機能を有する積層体。10. The moisture absorbing layer, antistatic layer, mixed layer,
The laminate having an antistatic function according to any one of claims 1 to 9, wherein the laminating layer and the intermediate layer have a layer thickness of 5 µm or more and 100 µm or less.
脂１００重量部に対し０．１〜５０重量部配合されてい
ることを特徴とする請求項１ないし請求項１０のいずれ
か１項に記載の帯電防止機能を有する積層体。11. The antistatic agent is blended in an amount of 0.1 to 50 parts by weight with respect to 100 parts by weight of the base film resin, according to any one of claims 1 to 10. A laminate having an antistatic function.
系、カチオン系、両性系、あるいはポリエチレンオキシ
ド、ポリエーテルエステルアミド、ポリエーテルアミド
イミド、エチレンオキシド-エピハロヒドリン共重合
体、メトキシポリエチレングリコール（メタ）アクリレ
ート共重合体などのポリエーテル系、あるいは第四アン
モニウム塩基含有（メタ）アクリレート共重合体、第四
アンモニウム塩基含有マレイミド共重合体、第四アンモ
ニウム塩基含有メタクリルイミド共重合体などの第四ア
ンモニウム塩基系、あるいはポリスチレンスルホン酸ソ
ーダなどのスルホン酸系、あるいはカルボベタイングラ
フト共重合体などのベタイン系、あるいは窒化ホウ素、
ホウ素−窒素間で電荷移動を行う機構などを含む高分子
型からなることを特徴とする請求項１ないし請求項１１
のいずれか１項に記載の帯電防止機能を有する積層体。12. The antistatic agent is nonionic, anionic, cationic, amphoteric, or polyethylene oxide, polyether ester amide, polyether amide imide, ethylene oxide-epihalohydrin copolymer, methoxy polyethylene glycol (meth). Polyether-based such as acrylate copolymer, or quaternary ammonium base such as quaternary ammonium salt-containing (meth) acrylate copolymer, quaternary ammonium salt-containing maleimide copolymer, quaternary ammonium salt-containing methacrylimide copolymer Type, or sulfonic acid type such as polystyrene sulfonate, betaine type such as carbobetaine graft copolymer, or boron nitride,
12. A polymer type structure including a mechanism for performing charge transfer between boron and nitrogen, and the like.
A laminate having an antistatic function according to any one of 1.
モリロナイト、活性炭などのケージ化合物、あるいはポ
リビニルアルコール、ポリアクリル酸、ポリアクリル酸
塩、カルボキシルメチルセルロース、ポリグルコール、
アイオノマー、ヒドロキシエチルセルロースなどの湿度
依存性のある高分子、あるいは硫酸マグネシウム、酸化
カルシウム、酸化アルミニウム等のいわゆる吸湿剤から
なることを特徴とする請求項１ないし請求項１２のいず
れか一項に記載の帯電防止機能を有する積層体。13. The water absorbing agent is a cage compound such as synthetic zeolite, montmorillonite or activated carbon, or polyvinyl alcohol, polyacrylic acid, polyacrylic acid salt, carboxymethyl cellulose, polyglycol,
13. A humidity-dependent polymer such as an ionomer or hydroxyethyl cellulose, or a so-called hygroscopic agent such as magnesium sulfate, calcium oxide, or aluminum oxide, according to any one of claims 1 to 12. A laminate having an antistatic function.
項に記載の帯電防止機能を有する積層体の最内層の表面
抵抗は２０±５℃、４０±１０％ＲＨ〜６５±１０％Ｒ
Ｈの測定環境下で１０8〜１０12Ω／□の範囲であるこ
とを特徴とする帯電防止機能を有する積層体。14. The surface resistance of the innermost layer of the laminate having an antistatic function according to claim 1, which is 20 ± 5 ° C., 40 ± 10% RH to 65 ± 10% R.
A laminate having an antistatic function, which is in the range of 10 8 to 10 12 Ω / □ under a measurement environment of H.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002058400A JP4085653B2 (en) | 2002-03-05 | 2002-03-05 | Laminated body having antistatic function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002058400A JP4085653B2 (en) | 2002-03-05 | 2002-03-05 | Laminated body having antistatic function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003251760A true JP2003251760A (en) | 2003-09-09 |
| JP4085653B2 JP4085653B2 (en) | 2008-05-14 |
Family
ID=28668386
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007211066A (en) * | 2006-02-08 | 2007-08-23 | Taihei Kagaku Seihin Kk | Permanently antistatic resin composition, transparent sheet and transparent permanently antistatic sheet |
| JP2008030424A (en) * | 2006-08-01 | 2008-02-14 | Fujicopian Co Ltd | Antistatic-layer transfer sheet |
| KR101254724B1 (en) | 2012-09-05 | 2013-04-15 | 정화영 | Antistatic and humidity preventing film and method for manufacturing the same |
| KR101387977B1 (en) * | 2013-05-16 | 2014-04-22 | (주)티엔에프 | An environment-friendly uni-material multi-layered film for packing electronic parts and a bag using the same |
| WO2014204150A1 (en) * | 2013-06-18 | 2014-12-24 | 주식회사 엘지화학 | Stretched laminate, preparation method for thin polarizer, thin polarizer prepared by using same and polarizing plate comprising same |
-
2002
- 2002-03-05 JP JP2002058400A patent/JP4085653B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007211066A (en) * | 2006-02-08 | 2007-08-23 | Taihei Kagaku Seihin Kk | Permanently antistatic resin composition, transparent sheet and transparent permanently antistatic sheet |
| JP2008030424A (en) * | 2006-08-01 | 2008-02-14 | Fujicopian Co Ltd | Antistatic-layer transfer sheet |
| KR101254724B1 (en) | 2012-09-05 | 2013-04-15 | 정화영 | Antistatic and humidity preventing film and method for manufacturing the same |
| KR101387977B1 (en) * | 2013-05-16 | 2014-04-22 | (주)티엔에프 | An environment-friendly uni-material multi-layered film for packing electronic parts and a bag using the same |
| WO2014204150A1 (en) * | 2013-06-18 | 2014-12-24 | 주식회사 엘지화학 | Stretched laminate, preparation method for thin polarizer, thin polarizer prepared by using same and polarizing plate comprising same |
| CN104395793A (en) * | 2013-06-18 | 2015-03-04 | Lg化学株式会社 | Stretched laminate, preparation method for thin polarizer, thin polarizer prepared by using same and polarizing plate comprising same |
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| Publication number | Publication date |
|---|---|
| JP4085653B2 (en) | 2008-05-14 |
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