JPH03215277A - 磁気シートの製法 - Google Patents

磁気シートの製法

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Publication number
JPH03215277A
JPH03215277A JP2010178A JP1017890A JPH03215277A JP H03215277 A JPH03215277 A JP H03215277A JP 2010178 A JP2010178 A JP 2010178A JP 1017890 A JP1017890 A JP 1017890A JP H03215277 A JPH03215277 A JP H03215277A
Authority
JP
Japan
Prior art keywords
sheet material
plastic
adhesive
plastic magnet
magnet
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
Application number
JP2010178A
Other languages
English (en)
Other versions
JPH0562552B2 (ja
Inventor
Isamu Masuda
勇 枡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON KENKO ZOUSHIN KENKYUKAI KK
Original Assignee
NIPPON KENKO ZOUSHIN KENKYUKAI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON KENKO ZOUSHIN KENKYUKAI KK filed Critical NIPPON KENKO ZOUSHIN KENKYUKAI KK
Priority to JP2010178A priority Critical patent/JPH03215277A/ja
Priority to ES90403731T priority patent/ES2055383T3/es
Priority to EP19900403731 priority patent/EP0437999B1/en
Priority to PT96488A priority patent/PT96488B/pt
Publication of JPH03215277A publication Critical patent/JPH03215277A/ja
Publication of JPH0562552B2 publication Critical patent/JPH0562552B2/ja
Granted legal-status Critical Current

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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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/06—Magnetotherapy using magnetic fields produced by permanent magnets
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/683—Pretreatment of the preformed part, e.g. insert
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G2200/00—Details not otherwise provided for in A47G
    • A47G2200/10—Magnetism
    • A47G2200/106—Permanent
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C2043/189—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the parts being joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/727—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 structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7316—Surface properties
    • B29C66/73161—Roughness or rugosity
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B29L2031/3061—Number plates

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Treatment Devices (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。

Description

【発明の詳細な説明】 く産業上の利用分野〉 この発明は、主として磁気掛け布団や磁気敷き布団のよ
うな健康増進用の寝具に関連する技術であって、殊にこ
の発明は、この種寝具の充填材として用いられる磁気シ
ートを製作するための製法に関する。
く従来の技術〉 従来、この種磁気シートとして、クッション材や布材の
ようなシート材の表面に複数のプラスチック磁石を取り
付けた構造のものが提案されている． これらプラスチック磁石の取付には、シート材の表面に
接着剤を用いて接着する方法の他に、各プラスチック磁
石に設けた凹穴へシート材を挟んで反対側よりストッパ
の軸部を差し込んで各プラスチック磁石を止着するなど
の方法がとられている． 〈発明が解決しようとする問題点〉 しかしながら接着剤による前者の方法の場合、プラスチ
ック磁石がシート材より剥離して脱落し易く、製品の寿
命が短かくなるなどの問題がある． またストツパによる後者の方法の場合、ストッパの軸部
が折れたり、凹穴から抜けたりして、同様にプラスチッ
ク磁石が脱落するばかりでなく、ストツパの分だけ重量
が嵩むための、特に磁気掛け布団の軽量化を阻害する要
因となる。
この発明は、上記問題に着目してなされたもので、シー
ト材よりプラスチック磁石が脱落せず、しかも寝具の軽
量化に貢献する磁気シートの製法を提供することを目的
とする。
〈問題点を解決するための手段〉 この発明は、複数のプラスチック磁石をシート材の表面
に接着して磁気シートを製作する方法であって、各プラ
スチック磁石のシート材への接合面に薬品処理を施して
樹脂基材が浸食されかつ磁性粉末粒子が突出した粗面を
生成する表面処理工程と、各プラスチック磁石の前記粗
面にホットメルト接着剤を塗布する接着剤塗布工程と、
各プラスチック磁石につき接着剤の塗布面をシート材の
表面に当てた後、シート材と各プラスッチク磁石との間
を加温状態で加圧して接着する接着工程とを一連Ｃこ実
脩して磁気シートを製作することを特徴とする。
く作用〉 プラスチノク磁石；こ粗面を形成するので、ホノトメル
ト接着剤の塗布面積か大幅に増大し、しかも接着剤はｌ
１こ入り組んだ浸食部分に入り込むことになる。このた
め接着剤とブラスチノク磁石との結合強度はきわめて大
きくなり、プラスチノク磁石の表面で接着剤が剥離する
虞がなく、プラスチンク磁石の脱落が防止される。
しかもシート材へのプラスチノク磁石の取付にストソパ
のような余分な部材を用いないので、製品の軽量化にも
貢献する。
〈実施例〉 第１図および第２図は磁気掛け布団Ａを示しており、複
数のプラスチック磁石■を有する磁気シ一ト２の上下を
カバー布３で覆い、各プラスチノク磁石ｌを避けて縫い
糸４によりキルティング加工が施してある。
前記磁気シ一ト２は、軟質ウレタンフォームよ２つ成る
シ一ト材５の下面に半球状をなす複数のプラスチ７・ク
磁石ｌをホノトメルト接着剤６を用いて整列状態で接着
した構造のものである。
各プラスチック磁石１は、ナイロンのような合成樹脂基
材にハリウムフエライト、ストロンチウムフェライトな
との磁性粉末を混入させたプラス千ノク磁性材料（Ｖｌ
４えば製品名１コンポディノク」、大日本インキ化学工
業株式会社製）を、射出成形などの方法で型成形した後
、或いは型成形と同時に、着磁処理を施して形成される
。
またホ７｝メルト接着剤６は、熱可塑性樹脂、粘着付与
剤、ワックス翅などを構成成分とし、さらに必要に応じ
て酸化防止剤、充填剤を配合した多成分系接着剤である
。主成分の熱可望性樹脂としてエチレンー酢酸ビニルコ
ポリマーポリアミドなどが、また粘着付与剤としてロジ
ンおよびロジン誘導体、ビネン系樹脂なとか、さらにワ
ノクス類としてパラフィンワノクス、マイクロクリスタ
リンワノクスなどが、それぞれ用いられる。
第３図は、この発明の製法にかかる上記磁気シ一ト２の
製作手順を示すもので、同図のステνプｌ（図中ｒｓＴ
１」で示す）において、各プラスチック磁石１の平坦面
に所定の化学薬品を用いて表面処理を施すことにより適
当な厚みだけ樹脂基材が浸食されかつ対応する厚みだけ
磁性粉末粒子が突出した粗面を生成する。ここで化学薬
品としては塩酸、硫酸などの強酸の他に、フェノールの
ような弱酸や、オゾンなども使用可能である。このり処
理工程が完了すると、つぎのステップ２でホットメルト
接着剤を加熱溶融し、この接着剤を溶融状態で各プラス
チノク磁石ｌの粗面に塗布する。
第４図は、プラスチック磁石ｌの接着剤塗布面の状態を
拡大して表しており、図中、ｌａ，ｌｂはブラスチノク
磁石１における樹脂基材および磁性粉末粒子を、６はホ
ノトメルト接着剤を、それぞれ示している。同図によれ
ば、プラスチック磁石Ｉの表面：よ樹脂基材１ａの浸食
部分と磁性扮末Ｖ立子１ｂの突出部分とで粗面となって
おり、この復雉に入り組んだ浸食部分にホノトメルト接
着刑６か入り込んでいる。なおホノトメルト接着’ＥＩ
６はプラスチノク磁石１への塗布後は自然冷却により固
化している。
ステノプ２の接着剤の１布工程が終わると、つぎにステ
ノブ３へ移行し、接着剤が塗布された復数のプラスチノ
ク磁石１を、第５図（１）Ｃこ示すような金属製の支持
板７上に接着剤の塗布面を上に向けて整列配置する。こ
の支持板７１ま、その上面に曲面状をなす複数の凹六８
を備えており、各凹穴８にプラスチノク磁石ｌの半球面
を嵌めて位置決めするようになっている。
全てのプラス千ノク磁石ｌを配置した後、この支持坂７
上シこノート材５を位置させ、その上面へ熱仮９を降下
させる。この熱仮９はホノトメルト接着剤が溶融する温
度に加熱されており、第，う回（２）に示すようにシー
ト材５を熱板９と支持板７との間で挟み付けることによ
り、ノ一トけ５と各プラス千ンク磁石１との間が加温状
態で加圧され、これによりホノトメルト接着剤か加熱溶
融して各ブラスチノク磁石１かシート材５に接着する（
ステノプ４）。
ついで熱Ｆｉ．９を第５図（３）のよう二二上昇させる
と、ホントメルト接着剤は自然冷却により固化し、各プ
ラス千ンク磁石１はシート材５の表面クこ一体固定され
、磁気ンート２が完成する（ステノプ５）。
第６図は、上記磁気シ一ト２の池の適用例を示す。
図示例のものは磁気敷き布団Ｂであって、合成樹脂製の
波板ＩＯを中央に挟んでその上面一・ｆａ気シート２を
、下面ヘクソションシ一ト１１を、それぞれ重ねると共
に、その全体をカハー布１２で被１した構造のものであ
る。前記磁気ソート２はクソンヨンシ一トｌｌと同しソ
ート材５の表面にホソトメルト接着剤を用いてｙＪ数の
プラスチック磁石Ｌを接着して成るものである。
〈発明の効果〉 この発明は上記の如く、各プラスチ７・ク磁石に薬品処
理を施して粗面を土成した後、その咀面↓こホノトメル
ト接着剤を塗布して各プラスチノク磁石をシート材Ｓこ
当て、各プラス千ノク磁石とノート．ｔｔとの間を加温
状態で加圧する二とにより各プラス千ノク磁石を接着す
るようにしたから、接着剤とプラス千ノク磁石との結合
強度５よきわめて大きくなり、プラスチック磁石のノー
ト材からの脱落を防止できる。またシート材−＼のプラ
スチソク磁石の取付にストソパのような別部材を用いな
いから、製品の軽量化が可能であり、二の磁気シートを
磁気掛け布団に用いることができるなど、発明目的を達
成した顕著な効果を奏する。
【図面の簡単な説明】
第１図は磁気掛け布団の斜面図、第２図２よその断面図
、第３図はこの発明の製法にかかる磁気シートの制作手
順を示すフローチャート、第４図はプラスチノク磁石の
接着剤堡布面の状態を示す拡大断面図、第５図はこの発
明二こおけるの接着工程を示す断面図、第６図一よ磁気
敷き布団の一部を破断した斜面図である。 ■・・・・プラスチノク磁石 ２・・・・磁気シ一ト　　　　　５・・・・冫−ト材６
・・・・ホノトメルト接着剤

Claims (1)

  1. 【特許請求の範囲】 　複数のプラスチック磁石をシート材の表面に接着して
    磁気シートを製作する方法であって、各プラスチック磁
    石のシート材への接合面に薬品処理を施して樹脂基材が
    浸食されかつ磁性粉末粒子が突出した粗面を生成する表
    面処理工程と、 各プラスチック磁石の前記粗面にホットメルト接着剤を
    塗布する接着剤塗布工程と、 各プラスチック磁石につき接着剤の塗布面をシート材の
    表面に当てた後、シート材と各プラスッチク磁石との間
    を加温状態で加圧して接着する接着工程とを一連に実施
    して磁気シートを製作する磁気シートの製法。
JP2010178A 1990-01-18 1990-01-18 磁気シートの製法 Granted JPH03215277A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010178A JPH03215277A (ja) 1990-01-18 1990-01-18 磁気シートの製法
ES90403731T ES2055383T3 (es) 1990-01-18 1990-12-21 Metodo para la fabricacion de un cuerpo laminar magnetico.
EP19900403731 EP0437999B1 (en) 1990-01-18 1990-12-21 A manufacturing method of a magnetic sheet
PT96488A PT96488B (pt) 1990-01-18 1991-01-16 Metodo de fabrico de uma folha magnetica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010178A JPH03215277A (ja) 1990-01-18 1990-01-18 磁気シートの製法

Publications (2)

Publication Number Publication Date
JPH03215277A true JPH03215277A (ja) 1991-09-20
JPH0562552B2 JPH0562552B2 (ja) 1993-09-08

Family

ID=11743033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010178A Granted JPH03215277A (ja) 1990-01-18 1990-01-18 磁気シートの製法

Country Status (4)

Country Link
EP (1) EP0437999B1 (ja)
JP (1) JPH03215277A (ja)
ES (1) ES2055383T3 (ja)
PT (1) PT96488B (ja)

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Also Published As

Publication number Publication date
PT96488B (pt) 1994-09-30
EP0437999A3 (en) 1992-04-01
EP0437999B1 (en) 1994-07-13
EP0437999A2 (en) 1991-07-24
PT96488A (pt) 1992-09-30
ES2055383T3 (es) 1994-08-16
JPH0562552B2 (ja) 1993-09-08

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