JPS61156798A - Magnetic shield paper and housing - Google Patents
Magnetic shield paper and housingInfo
- Publication number
- JPS61156798A JPS61156798A JP59274450A JP27445084A JPS61156798A JP S61156798 A JPS61156798 A JP S61156798A JP 59274450 A JP59274450 A JP 59274450A JP 27445084 A JP27445084 A JP 27445084A JP S61156798 A JPS61156798 A JP S61156798A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- housing
- shielding
- paint
- magnetic shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Casings For Electric Apparatus (AREA)
- Laminated Bodies (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (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】
（１）産業上の利用分野
本発明は、新規な磁界シールド紙およびハウジングの発
明である。DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention is a novel magnetic field shielding paper and housing.
近年の産業発展とくにＩＣ，ＬＳＩ、超ＬＳＩを組み込
んだテレビ、ビデオ、コンピュータ、オーディオ製品、
自動車の普及は、これらＩＣ。Recent industrial developments, especially TVs, videos, computers, and audio products incorporating ICs, LSIs, and ultra-LSIs,
The spread of automobiles is due to these ICs.
Ｌ’Ｓ［、超ＬＳ’［の発するパルスによって生ずる電
磁波妨害の問題をクローズアップさせてきた１、これら
の電磁波妨害は、コンピュータその他の電子機器の機能
を損ない、これを誤動作させるなど、無視できない危険
を生じさせて′８た。We have focused on the problem of electromagnetic interference caused by the pulses emitted by L'S[ and Ultra LS'[1] These electromagnetic interferences cannot be ignored, as they impair the functions of computers and other electronic equipment, causing them to malfunction. It was dangerous to do so.
また、ワードプロセッサのフロッピー・ディスク等はＯ
Ａ機器の発達に伴い、多くの事業所に普及してきたが、
電磁波はこれらにも悪影響を及ぼし、また磁界の作用に
よりその記録を消去させる虞れが広く存在している。。Also, word processor floppy disks, etc.
With the development of A-equipment, it has become popular in many business establishments,
Electromagnetic waves have a negative effect on these, and there is a wide possibility that the records may be erased due to the action of the magnetic field. .
本発明は、これら電磁波妨害や磁界の影響に対して、電
子機器やフロッピー・ディスク、テープ等を防御する有
効なシールド材を安価に提供するものである。The present invention provides an inexpensive shielding material that is effective and protects electronic devices, floppy disks, tapes, etc. from the effects of electromagnetic interference and magnetic fields.
（２）従来の技術
従来これら電子機器を保護するために、金属製ハウジン
グが使用されてきた。(2) Prior Art Conventionally, metal housings have been used to protect these electronic devices.
金属製ハウジングは薄いものであ・っても電磁波を吸収
又は反射し、有効なしゃ断効果を発揮してきた。Even if the metal housing is thin, it absorbs or reflects electromagnetic waves and has been effective in blocking electromagnetic waves.
しかし、機器の軽量化やコストダウンの要請から近年プ
ラスチック化が進行し、プラスチッりは電磁波を全部透
過することで、これに対する新たな対応が迫られること
となった。However, in recent years, the demand for lighter weight and lower costs has led to the use of plastic, and as plastic transmits all electromagnetic waves, a new approach has become necessary.
そこでプラスチック自体に導電性を具有させた導電性プ
ラスチックや導電性塗料をこれに塗布する方法、あるい
は粘着シートを付着する方法等が開発された。Therefore, methods have been developed in which conductive plastic or conductive paint is applied to the plastic itself, or a method in which an adhesive sheet is attached to the plastic.
しかし、導電性プラスチックは金属粉をプラスチック中
に分散せしめるため、その均一性に問題があり、塗料塗
布や粘着シート付着もシールド効果が必ずしも充分とは
云えない問題が、ちった。However, since conductive plastics have metal powder dispersed in the plastic, there is a problem with the uniformity of the metal powder, and the shielding effect is not always sufficient when applying paint or attaching adhesive sheets.
（３）発明の構成
本願発明は、前記の従来の技術と全（異なり、紙（合成
紙を含む）を使用し、これに導電性塗料をフローコート
して成るものであり、電磁波妨害や磁界作用に対して有
効な効果を発揮するシールド紙およびハウジングを提供
するものである。(3) Structure of the Invention The present invention differs from the conventional technology described above in that it uses paper (including synthetic paper) and flow-coats it with conductive paint, which prevents electromagnetic interference and magnetic fields. The present invention provides a shielding paper and a housing that exhibit an effective effect on the action.
本願発明において、磁界シールド材は紙（合成紙を含む
）を基材として、これに導電性塗料をフローコートして
製造されるものであり、またこのようにして製造された
シールド材を成形することにより紙製ハウジングが製造
される。In the present invention, the magnetic field shielding material is manufactured by flow coating a conductive paint on paper (including synthetic paper) as a base material, and the shielding material manufactured in this way is molded. A paper housing is thereby manufactured.
本願発明に使用する紙には限定はなく、合成紙も用いる
ことができる。しかし、ハウジングの目的に使用する場
合には、一定以上の紙厚や腰の強さが要請されることが
多い。The paper used in the present invention is not limited, and synthetic paper can also be used. However, when used for housing purposes, the paper is often required to have a certain thickness or stiffness.
本願発明で使用されるシールド用塗料としてはニッケル
粉末を主体とするものが導電効果と価格のバランスの点
から好適である。しかし、特に高度の信頼を要求される
ものについては金糸、銀糸のシールド材を使用すること
が望ましい。As the shield coating material used in the present invention, a coating material mainly containing nickel powder is suitable from the viewpoint of the balance between conductive effect and cost. However, it is desirable to use gold thread or silver thread shielding material for devices that require a particularly high degree of reliability.
本発明において、シールド用塗料は紙にフローコートさ
れる。In the present invention, the shield paint is flow coated onto paper.
すなわち、シールド用塗料自体が粘性（例えば３０００
Ｃ，Ｐ、Ｓ）を有するので、この粘性を利用することに
よって紙上に均一にシールド用塗料を塗装することがで
きる。In other words, the shield paint itself has a viscosity (for example, 3000
C, P, S), and by utilizing this viscosity, it is possible to uniformly apply the shielding paint onto the paper.
フローコートは機械的に連続して行うことが可能であり
、機械上部から導電性塗料を薄いカーテン状にて流下さ
せ、この下をコンベアにのせた紙をくぐらせることによ
り、紙面上に塗料が均一に塗装される。塗装されなかっ
た塗料余部は機械下部から回収され、循環して再筺用さ
れる。Flow coating can be carried out mechanically and continuously. Conductive paint is flowed down from the top of the machine in a thin curtain shape, and by passing the paper placed on a conveyor under this, the paint is coated on the paper surface. Painted evenly. The remaining paint that was not painted is collected from the bottom of the machine and recycled for re-enclosure.
シールド材は、乾燥後成形され、紙製磁界シールドハウ
ジングが製造される。After drying, the shielding material is molded to produce a paper magnetic field shielding housing.
その際、塗布面を他の紙を用いて合紙すれば、ハウジン
グ製造の際屈曲部から塗料が剥離される虞がなく、シー
ルド効果を完全に保つことができる。At that time, if the coated surface is laminated with another paper, there is no risk that the paint will peel off from the bent portion during housing manufacture, and the shielding effect can be maintained completely.
（４）実施例
本願発明のシールド紙およびハウジングを次の方法で製
造した。(4) Example The shield paper and housing of the present invention were manufactured by the following method.
基材として、５４０Ｘ８００ｘｌｔの厚紙を使用し、ニ
ッケル粉末を主体とするアクリル常温乾燥夕、イブの導
電性塗料（商品名ライオボールＩＰ−０３８）を流し塗
り （フローコート）した。フローコーティングに際し
ては、均一に連続して行うためフローコーターＦＬ−３
６Ｆ ″タイプを使用し、コーター上部から粘度８５
ｓｅｃ （１，Ｈ，Ｓカップ）の低粘度に調整した前記
ＩＰ−０３８を薄いカーテン状に流下させ、その下部に
コンベアに載せた前記基材を８０ｍ／ ｆｆＬ ｌ ｎ
の速度で通過させた。A 540 x 800 x lt cardboard was used as a base material, and a conductive paint (trade name: Lioball IP-038) made of acrylic powder containing nickel powder and drying at room temperature was flow coated. Flow coater FL-3 is used to perform flow coating uniformly and continuously.
Use a 6F'' type, with a viscosity of 85 from the top of the coater.
The IP-038 adjusted to a low viscosity of sec (1, H, S cup) was allowed to flow down like a thin curtain, and the base material placed on a conveyor was placed at the bottom of the curtain at 80 m/ffL ln.
passed at a speed of
この方法により、基材紙上に１４５ ｇ ／ ｍ（ウェ
ット）、（ドライでの実塗布量８５ｇ／ｌ）の導電性塗
料が厚さ３０μに塗装された。By this method, a conductive paint of 145 g/m (wet) (actual coating amount in dry: 85 g/l) was applied to a thickness of 30 μm on the base paper.
塗装類に気泡は見当らず、仕上がり状態は良好であった
。No air bubbles were found in the paint, and the finish was in good condition.
本方法で製造したシールド紙を成形しシールドハウジン
グとした。The shield paper produced by this method was molded into a shield housing.
また塗装面を他の用紙で合紙して、台紙シールドハウジ
ングを製造した。In addition, a mount shield housing was manufactured by laminating the painted surface with other paper.
台紙に際しては、シールド効果を低下させないよう接着
剤の選択が極めて重要である。When using the mount, it is extremely important to select the adhesive so as not to reduce the shielding effect.
発明者は種々の接着剤を研究した結果、変性サイピノー
ル（酢酸ビニール士ポリプロピレン）と酢酸ビニールを
１対１に混合して、これを接着剤として使用することに
より本問題を解決しｔ：１、
（５） 作用
本願発明によるシールド材のシールド効果を測定すると
、５ Ｍ Ｈｚ以上についてシールド効果があり、とく
に５０ＭＨｚ以上の周波数に対して著しいシールド効果
が認められる。As a result of researching various adhesives, the inventor solved this problem by mixing modified Cypinol (vinyl acetate polypropylene) and vinyl acetate in a 1:1 ratio and using this as an adhesive. (5) Effect When the shielding effect of the shielding material according to the present invention is measured, it is found that it has a shielding effect at frequencies of 5 MHz or higher, and particularly a remarkable shielding effect at frequencies of 50 MHz or higher.
（６）発明の効果
以−Ｆ述へたとおり本願発明は電磁波妨害や磁界の悪影
響から電子機器やフロッピーディスク、テープなどを防
御する有効なシールド材とハウじ、グを安価に提供する
ものである。(6) Effects of the Invention - As mentioned in F above, the present invention provides an effective shielding material, housing, and housing for protecting electronic equipment, floppy disks, tapes, etc. from electromagnetic interference and the harmful effects of magnetic fields at low cost. be.
とくに紙製のシールド材やハウジングは、従来均一な塗
装が困難であ−３を二が、本願発明はこの問題を解決し
、紙製のシールド材を実用化することができた。In particular, it has been difficult to uniformly coat paper shielding materials and housings in the past, but the present invention has solved this problem and has been able to put paper shielding materials into practical use.
また、これを成形して有効な／’％ウジングとする。こ
の際塗装面を他の紙面で合紙すること（こより成形の際
塗装面が剥離する虞れを除去し、シールド効果を完全に
発揮する）１ウジングを提供することができろ。Moreover, this is molded into an effective /'% uzing. At this time, it is possible to provide a welding by laminating the painted surface with another paper (to eliminate the risk of the painted surface peeling off during stranding and to fully exhibit the shielding effect).
Claims (2)
紙(1) Magnetic field shield paper made by flow coating conductive paint
ハウジング(2) Paper magnetic field shield housing flow-coated with conductive paint
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59274450A JPS61156798A (en) | 1984-12-28 | 1984-12-28 | Magnetic shield paper and housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59274450A JPS61156798A (en) | 1984-12-28 | 1984-12-28 | Magnetic shield paper and housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61156798A true JPS61156798A (en) | 1986-07-16 |
Family
ID=17541858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59274450A Pending JPS61156798A (en) | 1984-12-28 | 1984-12-28 | Magnetic shield paper and housing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61156798A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639199U (en) * | 1986-07-04 | 1988-01-21 | ||
| JP2007167410A (en) * | 2005-12-22 | 2007-07-05 | Akkm Kk | Game machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870332A (en) * | 1981-10-22 | 1983-04-26 | Mikasa Paint Kk | Housing for electronic computer |
| JPS5829983B2 (en) * | 1977-03-31 | 1983-06-25 | 三洋化成工業株式会社 | Soil stabilization method using chemical solutions |
| JPS60244535A (en) * | 1984-05-19 | 1985-12-04 | 内外特殊染工株式会社 | Cloth-like article and manufacture thereof |
-
1984
- 1984-12-28 JP JP59274450A patent/JPS61156798A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829983B2 (en) * | 1977-03-31 | 1983-06-25 | 三洋化成工業株式会社 | Soil stabilization method using chemical solutions |
| JPS5870332A (en) * | 1981-10-22 | 1983-04-26 | Mikasa Paint Kk | Housing for electronic computer |
| JPS60244535A (en) * | 1984-05-19 | 1985-12-04 | 内外特殊染工株式会社 | Cloth-like article and manufacture thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639199U (en) * | 1986-07-04 | 1988-01-21 | ||
| JP2007167410A (en) * | 2005-12-22 | 2007-07-05 | Akkm Kk | Game machine |
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