JPS61170098A - Manufacture of electromagnetic wave shielding sheet - Google Patents
Manufacture of electromagnetic wave shielding sheetInfo
- Publication number
- JPS61170098A JPS61170098A JP60010495A JP1049585A JPS61170098A JP S61170098 A JPS61170098 A JP S61170098A JP 60010495 A JP60010495 A JP 60010495A JP 1049585 A JP1049585 A JP 1049585A JP S61170098 A JPS61170098 A JP S61170098A
- Authority
- JP
- Japan
- Prior art keywords
- shielding sheet
- metal foil
- electromagnetic wave
- heat
- sheet
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulating Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は電磁波シールド用シートの製造方法に関し、特
にその端部と電気回路との電気的接触の生じない電磁波
シールド用シートの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing an electromagnetic shielding sheet, and more particularly to a method for manufacturing an electromagnetic shielding sheet that does not cause electrical contact between its edges and an electric circuit.
〈従来の技術〉
従来から、鉄、銅等の金属箔に電磁波シールド性のある
ことが知られており、この金属箔の両面にプラスチック
フィルム等の電気絶縁層を形成したシートも知られてい
る。<Conventional technology> It has long been known that metal foils such as iron and copper have electromagnetic shielding properties, and sheets in which electrically insulating layers such as plastic films are formed on both sides of this metal foil are also known. .
これらの電磁波シールド性のシートは、電子機器のハウ
ジングの一部として用いられたり、磁気記録媒体の外装
材として用いて、外部からの電磁波の内部への侵入や内
部で発生した電磁波の外部への漏洩を防止するために使
用できることが知られている。These electromagnetic shielding sheets are used as part of the housing of electronic devices or as an exterior material for magnetic recording media to prevent electromagnetic waves from entering from outside and electromagnetic waves generated inside from going outside. It is known that it can be used to prevent leakage.
ところが、これらの使用方法の外に、電子機器内部で、
例えば二枚のプリント回路の間に介在させることにより
、回路同士の相互干渉を防ぐことができる。しかしなが
ら、この際には、プリント回路同士が極めて近接してお
り、通常回路は何等の保護もなく露出しているので、上
述の金属箔と回路の電気的接触を防止する手段が必要と
される。However, in addition to these usage methods, inside electronic devices,
For example, by interposing it between two printed circuits, mutual interference between the circuits can be prevented. However, in this case, the printed circuits are very close to each other and the circuits are usually exposed without any protection, so a means to prevent electrical contact between the metal foil and the circuits is required. .
〈発明が解決しようとする問題点〉
本発明は、この金属箔と回路との電気的接触が生じるこ
とのない電磁波シールド用シートの製造方法を提供する
ことを目的とする。<Problems to be Solved by the Invention> An object of the present invention is to provide a method for manufacturing an electromagnetic shielding sheet that does not cause electrical contact between the metal foil and a circuit.
く問題点を解決するための手段〉
上述の問題点を解決するため、本発明は、片面に電気絶
縁性樹脂層を積層した金属箔を所定形状に打抜℃・た後
、この金属箔面に、これより大きい熱触着性樹脂フィル
ムな熱融着することを特徴とする電磁波シールド用シー
トの製造方法を提供する。Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a method for punching a metal foil laminated with an electrically insulating resin layer on one side into a predetermined shape, and then punching the metal foil surface into a predetermined shape. The present invention also provides a method for producing an electromagnetic shielding sheet, which is characterized by thermally bonding a larger thermoadhesive resin film.
以下図面を用いて本発明を説明する。図面は本発明の実
施例を示し、第１図はその工程を示す説明図である。The present invention will be explained below using the drawings. The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory diagram showing the process.
すなわち、第１図（５）において、（１）は電気絶縁性
樹脂層、（２）は金属箔を示している。That is, in FIG. 1 (5), (1) indicates an electrically insulating resin layer, and (2) indicates a metal foil.
電気絶縁性樹脂（１）としては、例えばポリエチレンや
ポリプロピレン等のポリオレフィン系フィルム、ポリア
ミド系フィルム、ポリエステル系フィルム、ポリ塩化ビ
ニル系フィルム等のプラスチックフィルムがある。Examples of the electrically insulating resin (1) include polyolefin films such as polyethylene and polypropylene, plastic films such as polyamide films, polyester films, and polyvinyl chloride films.
また金属箔（２）としては、鉄、ニアケル、銅、亜鉛、
金、銀、アルミニウム等の箔や、ニッケルや亜鉛をメッ
キした鉄箔、銅メッキしたアルミニウム箔等が使用でき
る。In addition, as the metal foil (2), iron, Niacel, copper, zinc,
Foils of gold, silver, aluminum, etc., iron foil plated with nickel or zinc, aluminum foil plated with copper, etc. can be used.
この両者は、例えばウレタン系、エポキシ系等の接着剤
により接着積層できる。Both can be adhesively laminated using a urethane adhesive, an epoxy adhesive, or the like.
この後、第１図（均に示すように、この債層材料を所定
形状に打ち抜く。打ち抜きはビク方式、プレス方式のい
ずれによっても良い。Thereafter, as shown in FIG. 1, the bond layer material is punched into a predetermined shape. Punching may be done by either the punch method or the press method.
そして打ち抜かれた積層シートの金属箔（２）面に、熱
融着性の樹脂フィルム（３）を熱融着積層する。Then, a heat-sealable resin film (3) is heat-sealed and laminated on the metal foil (2) side of the punched laminated sheet.
第１図（ｑこの熱融着性フィルム（３）は、打ち抜かれ
た積層シートよりも太きいもので、積層に際しては金属
箔（２）がとの熱融着性フィルム（３）の端部の内側に
あるようにする必要がある。Figure 1 (q) This heat-fusible film (3) is thicker than the punched laminated sheet, and during lamination, the metal foil (2) is attached to the edge of the heat-fusible film (3). It needs to be inside the .
なお、熱融着性フィルム（３）としてはエチレン−（メ
タ）アクリル酸共重合体やアイオノマー等の金属接着性
の良いポリオレフィン系樹脂のフィルムや、この樹脂を
表面に有する積層フィルムが使用できる。As the heat-fusible film (3), a film made of a polyolefin resin with good metal adhesion such as an ethylene-(meth)acrylic acid copolymer or an ionomer, or a laminated film having this resin on the surface can be used.
また熱融着性フィルム（３）として比較的大きなフィル
ムを用いた場合には、熱融着の後、金属箔（２）端部が
熱融着性フィルム（３）の端部の内側にあるような形状
、大きさに打抜いても良い。In addition, when a relatively large film is used as the heat-sealing film (3), after heat-sealing, the end of the metal foil (2) is inside the end of the heat-sealing film (3). It is also possible to punch out the shape and size.
〈実施例１〉
厚さ２０μのアルミニウム箔の片面に、厚さ２５μのポ
リエステルフィルムをドライラミネート法により貼合せ
て積層シート（イ）とした。<Example 1> A 25 μm thick polyester film was laminated on one side of a 20 μm thick aluminum foil by a dry lamination method to obtain a laminate sheet (A).
このシート（イ）を第２図（５）のような形状に打抜い
℃シート（ロ）とした。なお第２図（Ｂ）は第２幽囚の
Ｘ−Ｘ線の断面図である。This sheet (A) was punched into a shape as shown in FIG. 2 (5) to form a °C sheet (B). Note that FIG. 2(B) is a cross-sectional view of the second prisoner taken along the line X-X.
このシート（ロ）のアルミニウム箔面に、エチレン−ア
クリル酸共重合体フィルム（厚さ２０μ）及びポリエス
テルフィルム（厚さ２５μ）から成る積層フィルムを重
ね、１５０℃、 ２００９／ａｄ、 １υ秒の条件で熱
融着してシート（ハ）とした。この時の断面を第５図に
示す。A laminated film consisting of an ethylene-acrylic acid copolymer film (thickness 20μ) and a polyester film (thickness 25μ) was layered on the aluminum foil surface of this sheet (B), and the conditions were 150°C, 2009/ad, 1υ seconds. It was heat fused to form a sheet (c). A cross section at this time is shown in FIG.
次いで、このシート（１υを打ち抜いて第４図の断面図
に示すような電磁波シールド用シートを得た。Next, this sheet (1υ) was punched out to obtain an electromagnetic shielding sheet as shown in the cross-sectional view of FIG.
〈発明の効果〉
本発明は以上のような方法であり、簡単にできると共に
、電気回路と電気的接触を生じることのない電磁波シー
ルド用シートが得られる。<Effects of the Invention> The present invention is a method as described above, and it is possible to obtain an electromagnetic shielding sheet that is easily produced and does not cause electrical contact with an electric circuit.
図面は本発明の実施例を示し、第１図はその工程を示す
説明図、第２図〜第４図は実施例１を説明するための説
明図The drawings show an embodiment of the present invention, FIG. 1 is an explanatory diagram showing the process, and FIGS. 2 to 4 are explanatory diagrams for explaining the first embodiment.
Claims (1)
状に打抜いた後、この金属箔面に、これより大きい熱融
着性樹脂フィルムを熱融着することを特徴とする電磁波
シールド用シートの製造方法。1) An electromagnetic wave shield characterized by punching a metal foil laminated with an electrically insulating resin layer on one side into a predetermined shape, and then heat-sealing a larger heat-fusible resin film to the metal foil surface. method for manufacturing sheets for
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010495A JPS61170098A (en) | 1985-01-23 | 1985-01-23 | Manufacture of electromagnetic wave shielding sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60010495A JPS61170098A (en) | 1985-01-23 | 1985-01-23 | Manufacture of electromagnetic wave shielding sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61170098A true JPS61170098A (en) | 1986-07-31 |
| JPH0351316B2 JPH0351316B2 (en) | 1991-08-06 |
Family
ID=11751766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60010495A Granted JPS61170098A (en) | 1985-01-23 | 1985-01-23 | Manufacture of electromagnetic wave shielding sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170098A (en) |
-
1985
- 1985-01-23 JP JP60010495A patent/JPS61170098A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0351316B2 (en) | 1991-08-06 |
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