JPS6246342B2 - - Google Patents
Info
- Publication number
- JPS6246342B2 JPS6246342B2 JP61036149A JP3614986A JPS6246342B2 JP S6246342 B2 JPS6246342 B2 JP S6246342B2 JP 61036149 A JP61036149 A JP 61036149A JP 3614986 A JP3614986 A JP 3614986A JP S6246342 B2 JPS6246342 B2 JP S6246342B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- conductive
- sheet
- extruded
- die
- 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.)
- Expired
Links
Landscapes
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は導電性プラスチツク段ボールシートの
製造法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing conductive plastic corrugated sheets.
容器内壁となる面にアルミ箔を貼着した段ボー
ルシートで収納箱を形成し、その収納箱でプリン
ト基板を保護梱包することが既に案出されている
（実開昭54−22150号公報参照）。
It has already been devised that a storage box is formed from a cardboard sheet with aluminum foil attached to the inner wall of the container, and that the printed circuit board is protected and packed in the storage box (see Japanese Utility Model Publication No. 54-22150). .
上記のような収納箱を作成するには段ボールシ
ートの片面にアルミ箔を貼着し、次いでアルミ
箔／段ボールシートの積層材を所定のブランク形
状に打ち抜き、組み立てを行う方法がとられる。
To create a storage box like the one described above, aluminum foil is pasted on one side of a corrugated cardboard sheet, and then the aluminum foil/corrugated sheet laminate is punched into a predetermined blank shape and assembled.
即ち、上記のような収納箱用の材料を得るには
段ボールシートの製造工程と得られた段ボールシ
ートへのアルミ箔の貼着工程の二工程が必要であ
る。 That is, in order to obtain the material for the storage box as described above, two steps are required: a step of manufacturing a corrugated board sheet and a step of attaching aluminum foil to the obtained corrugated board sheet.
そこで本発明が解決しようとする問題点は導電
性ケース作成用の導電性段ボールシートをインラ
インで簡単に製造できる導電性段ボールシートの
製造法を提供することにある。 Therefore, the problem to be solved by the present invention is to provide a method for manufacturing a conductive corrugated board sheet that can be easily manufactured in-line for use in making a conductive case.
本発明者は上記の問題点を解決すべく研究の結
果、第１のＴダイより溶融樹脂を凹状に多数の穴
の開いたエンドレスベルト上に押出し、ベルト下
部より吸引して段ボールシートの中芯を成形し、
更に成形した中芯の上に第２のＴダイより溶融樹
脂を押出すと同時に熱接着性プラスチツクフイル
ム／導電性フイルムの共押出フイルムを繰り出
し、溶融押出した樹脂層を介して前記共押出フイ
ルムを積層する方法によればインラインで効率良
く段ボールシートの製造工程中で導電性プラスチ
ツク段ボールシートを得ることができることを見
いだし、かかる知見にもとづいて本発明を完成し
たものである。
As a result of research to solve the above-mentioned problems, the inventor of the present invention extruded molten resin from the first T-die onto an endless belt with many holes in a concave shape, and sucked it from the bottom of the belt to form a core of the corrugated cardboard sheet. mold and
Furthermore, the molten resin is extruded from a second T-die onto the formed core, and at the same time a coextruded film of a thermoadhesive plastic film/conductive film is fed out, and the coextruded film is passed through the melted and extruded resin layer. The inventors have discovered that a conductive plastic corrugated cardboard sheet can be efficiently obtained in-line during the corrugated sheet manufacturing process by a laminating method, and the present invention has been completed based on this knowledge.
即ち、本発明の導電性プラスチツク段ボールシ
ートの製造法は第１のＴダイより溶融樹脂を凹状
に多数の穴の開いたエンドレスベルト上に押出
し、ベルト下部より吸引して段ボールシートの中
芯を成形し、更に成形した中芯の上に第２のＴダ
イより溶融樹脂を押出すと同時に熱接着性プラス
チツクフイルム／導電性フイルムの共押出フイル
ムを繰り出し、溶融押出した樹脂層を介して前記
共押出フイルムを積層する工程を含むものであ
る。 That is, the method for producing a conductive plastic corrugated board sheet of the present invention involves extruding molten resin from a first T-die onto an endless belt with many holes in a concave shape, and sucking it from the bottom of the belt to form the core of the corrugated board sheet. Then, the molten resin is extruded from a second T-die onto the formed core, and at the same time, a coextruded film of thermoadhesive plastic film/conductive film is fed out, and the coextruded film is passed through the melted and extruded resin layer. This includes the step of laminating films.
而して本発明において、共押出フイルムとして
はインフレーシヨン法或はＴダイ法のどちらかの
方法によつて製膜したものを適用しうる。 In the present invention, the coextruded film may be formed by either the inflation method or the T-die method.
次に本発明において熱接着性プラスチツクフイ
ルムとしては熱接着後の接着強度の点からプラス
チツク段ボールシートの構成基材と同様のものが
好ましいといえるが、熱接着過程で適当な耐熱性
が要求されるのでプラスチツク段ボールシートの
構成基材よりも高密度のプラスチツクが特に好ま
しい。 Next, in the present invention, the thermoadhesive plastic film is preferably the same as the constituent base material of the plastic corrugated sheet from the viewpoint of adhesive strength after thermal adhesion, but appropriate heat resistance is required during the thermal adhesion process. Therefore, plastics having a higher density than the base material from which the plastic corrugated sheet is constructed are particularly preferred.
第１図は本発明の製造工程を示す。 FIG. 1 shows the manufacturing process of the present invention.
第１のＴダイ１１よりポリエチレンなどの溶融
樹脂１２を凹状に多数の穴の開いたエンドレスベ
ルト１３上に押出し、ベルト下部より吸引して段
ボールシートの中芯１４を成形し、更に中芯１４
の上に第２のＴダイ１５よりポリエチレンなどの
溶融樹脂１６を押出すと同時に例えば高密度ポリ
エチレンとカーボンブラツク混練低密度ポリエチ
レンとを共押出してなる熱接着性プラスチツクフ
イルム／導電性フイルムの共押出フイルム１７を
繰り出し、ロール１８で圧着して片面に導電性フ
イルムが積層された導電性シート１９を形成す
る。更に中芯１４のもう一方の面にプラスチツク
フイルムをはりあわせることにより、第２図ａ図
示のような導電性プラスチツク段ボールシートを
得ることができる。尚、図において４は中筒、５
は導電性フイルム、６は熱接着性プラスチツクフ
イルム、７は共押出フイルム、８は溶融押出樹脂
層、９はプラスチツクフイルムを示す。 A molten resin 12 such as polyethylene is extruded from a first T-die 11 onto an endless belt 13 having many holes in a concave shape, and is sucked from the lower part of the belt to form a core 14 of a corrugated cardboard sheet.
A molten resin 16 such as polyethylene is extruded from a second T-die 15 onto the top, and at the same time, for example, high-density polyethylene and carbon black kneaded low-density polyethylene are co-extruded to co-extrude a thermoadhesive plastic film/conductive film. The film 17 is unrolled and pressed with a roll 18 to form a conductive sheet 19 having a conductive film laminated on one side. Furthermore, by laminating a plastic film on the other side of the core 14, a conductive plastic corrugated sheet as shown in FIG. 2a can be obtained. In addition, in the figure, 4 is the middle cylinder, 5
6 is a conductive film, 6 is a thermoadhesive plastic film, 7 is a coextruded film, 8 is a melt-extruded resin layer, and 9 is a plastic film.
段ボールシートの両面に導電性フイルムを積層
する場合には一方の面に導電性フイルムが積層さ
れた段ボールシートの他方の面に同様な方法で導
電性フイルムを積層することにより第２図ｂ図示
のような導電性プラスチツク段ボールシートを得
ることができる。 When a conductive film is laminated on both sides of a corrugated cardboard sheet, a conductive film is laminated on one side of the corrugated cardboard sheet, and then the conductive film is laminated on the other side in the same manner as shown in Fig. 2b. A conductive plastic corrugated sheet can be obtained.
以上詳記した通り、本発明によればプラスチツ
ク段ボールシートの製造工程中でインラインで簡
単に導電性プラスチツク段ボールシートを得るこ
とができる。
As detailed above, according to the present invention, a conductive plastic corrugated board sheet can be easily obtained in-line during the manufacturing process of a plastic corrugated board sheet.
本発明により得られた導電性プラスチツク段ボ
ールシートを用いれば、安価で、軽量にして且つ
内容物保護性に優れたICやICを組込んだ製品な
どを収納する導電性ケースを作製することができ
る。 By using the conductive plastic corrugated sheet obtained by the present invention, it is possible to produce a conductive case for housing ICs and products incorporating ICs, which is inexpensive, lightweight, and has excellent contents protection properties. .
第１図は本発明の製造過程の模式図、第２図
ａ，ｂはそれぞれ本発明の製造法により得られた
導電性プラスチツク段ボールシートの例を示す断
面図である。
４……中芯、５……導電性フイルム、６……熱
接着性プラスチツクフイルム、７……共押出フイ
ルム。
FIG. 1 is a schematic diagram of the manufacturing process of the present invention, and FIGS. 2a and 2b are cross-sectional views showing examples of conductive plastic corrugated paperboard sheets obtained by the manufacturing method of the present invention, respectively. 4... Central core, 5... Conductive film, 6... Heat adhesive plastic film, 7... Coextruded film.
Claims (1)
の開いたエンドレスベルト上に押出しベルト下部
より吸引して段ボールシートの中芯を成形し、更
に成形した中芯の上に第２のＴダイより溶融樹脂
を押出すと同時に熱接着性プラスチツクフイル
ム／導電性フイルムの共押出フイルムを繰り出
し、溶融押出した樹脂層を介して前記共押出フイ
ルムを積層する工程を含むことを特徴とする導電
性プラスチツク段ボールシートの製造法。1 Molten resin is extruded from the first T-die onto an endless belt with many concave holes, sucked from the bottom of the belt to form a core of the corrugated sheet, and then a second T-die is formed on top of the formed core. An electrically conductive method characterized by including the step of extruding a molten resin from a die, simultaneously feeding out a coextruded film of a thermoadhesive plastic film/conductive film, and laminating the coextruded film through the melted and extruded resin layer. Method of manufacturing plastic corrugated sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61036149A JPS61209137A (en) | 1986-02-20 | 1986-02-20 | Manufacture of electrically conductive plastic corrugated board sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61036149A JPS61209137A (en) | 1986-02-20 | 1986-02-20 | Manufacture of electrically conductive plastic corrugated board sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61209137A JPS61209137A (en) | 1986-09-17 |
| JPS6246342B2 true JPS6246342B2 (en) | 1987-10-01 |
Family
ID=12461729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61036149A Granted JPS61209137A (en) | 1986-02-20 | 1986-02-20 | Manufacture of electrically conductive plastic corrugated board sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61209137A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069903B2 (en) * | 1986-10-14 | 1994-02-09 | 宇部興産株式会社 | Method for producing transparent conductive buffer sheet |
| US5759462A (en) * | 1994-10-14 | 1998-06-02 | Amoco Corporaiton | Electrically conductive tapes and process |
| JP4734682B2 (en) * | 1999-04-13 | 2011-07-27 | 川上産業株式会社 | Conductive plastic bubble sheet or plastic cardboard |
| JP2006297656A (en) * | 2005-04-18 | 2006-11-02 | Kawakami Sangyo Co Ltd | Plastic foam board with functional inorganic filler-containing layer |
| JP2007098921A (en) * | 2005-10-07 | 2007-04-19 | Ube Nitto Kasei Co Ltd | Composite plate material and box-shaped body made of the composite plate material |
-
1986
- 1986-02-20 JP JP61036149A patent/JPS61209137A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61209137A (en) | 1986-09-17 |
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