JPH02100399A - Film, paper and housing for magnetic shield - Google Patents
Film, paper and housing for magnetic shieldInfo
- Publication number
- JPH02100399A JPH02100399A JP25212088A JP25212088A JPH02100399A JP H02100399 A JPH02100399 A JP H02100399A JP 25212088 A JP25212088 A JP 25212088A JP 25212088 A JP25212088 A JP 25212088A JP H02100399 A JPH02100399 A JP H02100399A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- magnetic field
- film
- housing
- shielding material
- 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
- 239000003973 paint Substances 0.000 claims abstract description 19
- 238000007639 printing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 13
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 2
- 229920000728 polyester Polymers 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 13
- 239000000123 paper Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【発明の詳細な説明】
（１） 産業上の利用分腎
本発明は、新規な磁界シールド用フィルム、紙およびハ
ウジングの発明である。DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application The present invention is a novel magnetic field shielding film, paper, and housing.
近年の産業発展とくにＩＣ，、ＬＳＩ、超ＬＳＩ等を組
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ＩＣ１ＬＳＩ、超ＬＳＩ等
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
ーズアンプさせてきた。これらの電ａｌ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ｌＩ
！！！動作させるなど、無視できない危険を生じさせて
きた。また、ワードプロセッサのフロッピー・ディスク
、テープ等はＯＡ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。The recent industrial development, especially the spread of televisions, videos, computers, audio products, and automobiles that incorporate ICs, LSIs, and VLSIs has greatly amplified the problem of electromagnetic interference caused by the pulses emitted by these ICs, LSIs, and VLSIs. Ta. These electromagnetic interferences impair the functionality of computers and other electronic equipment, causing
! ! ! This poses a risk that cannot be ignored. In addition, word processor floppy disks, tapes, etc. have become popular in many offices with the development of office automation equipment, but electromagnetic waves can have a negative effect on these, and there is a risk that their records may be erased due to the action of magnetic fields. It exists widely.
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ｒｌッピー・ディスク、テ−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, flippy 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Ｉｌｌ量化やコス）・ダウンの要請から
近年プラスチック化が進行し、プラスチックは電磁波を
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 use of plastics has progressed due to demands for increasing the quantity and cost of equipment, and as plastics transmit all electromagnetic waves, a new response 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
に分散せしめろため、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
云えない問題があった。However, since conductive plastics require metal powder to be dispersed in the plastic, there is a problem with the uniformity of the metal powder, and there is also the problem that the shielding effect is not always sufficient when applying paint or attaching adhesive sheets.
また、フローコートによる磁気シールド紙およびハウジ
ングの発明が、本出願人による特開昭６１−１５６７９
８号として開示されているが、さらに多様な素材および
コーティング方法による磁界シールド材、ハウジングの
開発が待たれていた。In addition, the invention of magnetic shielding paper and housing by flow coating was disclosed in Japanese Patent Application Laid-Open No. 61-15679 by the present applicant.
Although disclosed as No. 8, the development of magnetic field shielding materials and housings using even more diverse materials and coating methods has been awaited.
（３）発明の構成
本願発明は、前記の従来の技術と異なり、フィルムまた
は紙（合成紙を含む）を使用し、これに導電性塗料をシ
ルク印刷またはドクターナイフを使用しコートシて成る
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材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 above-mentioned conventional technology in that it uses film or paper (including synthetic paper) and coats it with conductive paint using silk printing or a doctor knife. The present invention provides shielding materials and housings that are effective against electromagnetic interference and magnetic field effects.
本願発明において、磁界シールド材はフィルムまたは紙
（合成紙を含む）を基材として、これに導電性塗料をシ
ルク印刷またはドクターナイフを使用しコートして製造
されろものであり、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ハウジングが製造される。In the present invention, the magnetic field shielding material is manufactured by using film or paper (including synthetic paper) as a base material and coating it with conductive paint using silk printing or a doctor knife. A housing is manufactured by molding the shield material manufactured by the above process.
本願発明で使用するフィルムとしては、塩化ビニール、
ポリプロピレン、ポリエステル、ウレタン樹脂などの各
種合成樹脂フィルムを用いろことができろ。Films used in the present invention include vinyl chloride,
Various synthetic resin films such as polypropylene, polyester, and urethane resin can be used.
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、一定理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, paper thickness and stiffness are often required.
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、銀系のシールド材を使用する乙と
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, for items that require a particularly high degree of reliability, it is desirable to use gold thread or silver-based shielding materials.
本発明において、シールド用塗料はフィルムや紙にシル
ク印刷やドクターナイフ使用のコート法などによってコ
ーティングされる。後者においては、ベース上にコート
された塗料は、−・ラド先端部のエツジにより塗布厚精
度が調整され、均一なコーティングがなされる。In the present invention, the shielding paint is coated on a film or paper by silk printing or a coating method using a doctor knife. In the latter case, the coating thickness of the paint coated on the base is adjusted by the edge of the tip of the rad, and a uniform coating is achieved.
すなわち、シールド用塗料自体が粘性（例えば３０００
Ｃ，Ｐ、Ｓ） を有す乙ノテ、コ（７）粘性を利用する
ことによってベース上にシールド用塗料をコーティング
することができる。In other words, the shield paint itself has a viscosity (for example, 3000
The shielding paint can be coated on the base by utilizing the viscosity of C, P, S).
コーティングはシルク印刷やドクターナイフを１史用し
コートシてなされる。Coating is done using silk printing or a doctor knife.
シールド材は、乾燥後成形され、磁界シールドハウジン
グが製造されろ。After drying, the shielding material is molded to produce a magnetic field shielding housing.
その際、塗布面を他の紙その他を用いて処理すれば、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
、シールド効果を充全に保つことができる。At that time, if the coated surface is treated with another paper or the like, there is no risk that the paint will peel off from the bent portion during housing manufacture, and the shielding effect can be maintained fully.
（４）（実施例）
実施例１
本願発明のシールド用フィルムおよびハウジングを次の
方法で製造した。(4) (Example) Example 1 A shielding film and a housing of the present invention were manufactured by the following method.
基材として、巾５４０ｍｍ、長さ３００ｍ、厚さ５０μ
の塩化ビニールを使用し、ニッケル粉末を主体とするア
クリル常温乾燥タイプの導電性塗料（商品名ライオボー
ルＩＰ−０３８）をドクターナイフ使用のコート方法に
より流し塗布した。As a base material, width 540mm, length 300m, thickness 50μ
An acrylic room-temperature-drying type conductive paint (trade name: Lioball IP-038) containing nickel powder as a main ingredient was flow-coated using a coating method using a doctor knife.
この方法により、ベース上に１４５ ｇ ／ ｍ’（ウ
ェット）、（ドライでの実塗布量８５ｇ／ｍ’ ）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 of dry 85 g/m') was applied to a thickness of 30 μm on the base.
塗装面に気泡は見当らず、仕上がり状態は良好であった
。No air bubbles were found on the painted surface, and the finished state was good.
実施例２
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。Example 2 The shield paper and housing of the present invention were manufactured by the following method.
基材として、巾５４０ｆｆｌＩ１１１長さ８００ｍ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
燥タイプの導電性塗ＩＩ（商品名ライオポールＩＰ−０
３８）をドクターナイフ使用のコート方法により流し塗
布した。As a base material, a cardboard with a width of 540 fflI111 and a length of 800 m was used, and acrylic room temperature drying type conductive coating II (trade name Lyopol IP-0) containing nickel powder was used as the base material.
38) was applied by a flow coating method using a doctor knife.
この方法により、ペース上に１４５ ｇ ／ ｍ（ウェ
ット） （ドライでの実塗布量８５ｇ／ｆｆ１″）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 application amount in dry: 85 g/ff1'') was applied to a thickness of 30 μm on the paste.
塗装面に気泡は見当らず、仕上がり状態は良好であった
。No air bubbles were found on the painted surface, and the finished state was good.
本方法で製造したシールド材を成形しシールドハウジン
グとした。The shield material produced by this method was molded into a shield housing.
また塗装面を他のベースで処理して、合繊シールドハウ
ジングを製造した。The painted surface was also treated with other bases to produce synthetic fiber shield housings.
（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
、５ＭＨｚ以上についてシールド効果があり、とくに５
０ＭＨｚ以上の周波数に対して著しいシールド効果が認
められろ。(5) Function When the shielding effect of the shielding material according to the present invention was measured, it was found that it had a shielding effect at frequencies of 5 MHz or higher, and especially at 5 MHz.
A remarkable shielding effect is observed for frequencies above 0MHz.
（６）発明の効果
以上述べ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ジングを安価に提供するも
のである。(6) Effects of the Invention As described above, the present invention provides an effective shielding material and housing for protecting electronic devices, floppy disks, tapes, etc. from electromagnetic interference and the adverse effects of magnetic fields at low cost.
とくにフィルムや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ったが、本願発明はこの問題を
解決し、フィルムや紙製のシールド材を実用化すること
ができた。これを成形して有効なハウジングとする。こ
の際塗装面を他のベースで処理することにより成形の際
塗装面が剥離する虞れを除去し、シールド効果を完全に
発揮するハウジングを提供することがＣきる。In particular, shielding materials and housings made of film or paper have conventionally been difficult to uniformly coat, but the present invention has solved this problem and has been able to put shielding materials made of film or paper into practical use. This is then molded into a useful housing. At this time, by treating the painted surface with another base, it is possible to eliminate the possibility that the painted surface will peel off during molding, and to provide a housing that fully exhibits the shielding effect.
また、これを壁紙として使用すれば、通信室等の電磁波
障害を壁面でシールドすることができる。Also, if this is used as wallpaper, the walls can shield electromagnetic interference in communication rooms, etc.
Claims (5)
フィルム(1) Magnetic field shielding film made by silk printing conductive paint
なる磁界シールド用フィルム(2) Magnetic field shielding film coated with conductive paint using a doctor knife
を使用しコートしてなる磁界シールド用フィルム(3) Magnetic field shielding film coated with conductive paint using silk printing or a doctor knife
を使用しコートしたフィルム製磁界シールドハウジング(4) Film magnetic field shield housing coated with conductive paint using silk printing or a doctor knife
を使用しコートした紙製磁界シールドハウジング(5) Paper magnetic field shield housing coated with conductive paint using silk printing or a doctor knife
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25212088A JPH02100399A (en) | 1988-10-07 | 1988-10-07 | Film, paper and housing for magnetic shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25212088A JPH02100399A (en) | 1988-10-07 | 1988-10-07 | Film, paper and housing for magnetic shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02100399A true JPH02100399A (en) | 1990-04-12 |
Family
ID=17232750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25212088A Pending JPH02100399A (en) | 1988-10-07 | 1988-10-07 | Film, paper and housing for magnetic shield |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02100399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381715A (en) * | 2018-04-13 | 2019-10-25 | 乾坤科技股份有限公司 | Shielding magnetic device and its manufacturing method |
-
1988
- 1988-10-07 JP JP25212088A patent/JPH02100399A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381715A (en) * | 2018-04-13 | 2019-10-25 | 乾坤科技股份有限公司 | Shielding magnetic device and its manufacturing method |
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