JPH0766569B2 - Flat information recording medium and method for producing the same - Google Patents
Flat information recording medium and method for producing the sameInfo
- Publication number
- JPH0766569B2 JPH0766569B2 JP1142507A JP14250789A JPH0766569B2 JP H0766569 B2 JPH0766569 B2 JP H0766569B2 JP 1142507 A JP1142507 A JP 1142507A JP 14250789 A JP14250789 A JP 14250789A JP H0766569 B2 JPH0766569 B2 JP H0766569B2
- Authority
- JP
- Japan
- Prior art keywords
- flat
- substrate
- hot
- information recording
- producing
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000758 substrate Substances 0.000 claims description 37
- 239000004831 Hot glue Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000010030 laminating Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、２枚以上の平板状基板を貼合わせてなる平板
情報記録担体およびその作製方法に関する。Description: FIELD OF THE INVENTION The present invention relates to a flat plate information record carrier formed by laminating two or more flat plate substrates and a method for producing the same.
従来の技術 光ディスクなどの平板状の情報記録担体では、一般に２
枚以上の基板を貼合わせて作られることが多い。これ
は、１枚の基板のみを用いる場合と比べて反りや面振れ
などの少ない形状が得られるためである。2. Description of the Related Art Generally, in the case of a flat information record carrier such as an optical disc,
Often made by laminating more than one substrate. This is because a shape with less warpage or surface wobbling can be obtained as compared with the case where only one substrate is used.
基板の貼合わせ方法には各種あるが、特に結晶構造変化
による光学特性変化を記録に用いるいわゆる相変化型の
記録媒体や、磁気記録材料を用いた光磁気記録媒体を用
いた光ディスクの場合は、記録膜の形状変化を伴わない
ので全面密着貼合わせ方法が使われる。There are various methods for laminating substrates, but in the case of a so-called phase change type recording medium that uses optical characteristic change due to crystal structure change for recording, or an optical disk that uses a magneto-optical recording medium that uses a magnetic recording material, Since the shape of the recording film does not change, the full-face contact bonding method is used.
なかでも、ホットメルト接着剤をロールコート法によっ
て塗布して貼合わせる接着法が生産性の高さから多く利
用されている。Among them, an adhesive method in which a hot-melt adhesive is applied by a roll coating method and then bonded is often used because of its high productivity.
以下、第２図を参照しながらこの接着方法について説明
する。Hereinafter, this bonding method will be described with reference to FIG.
ロールコーターのタンク３内に溶融したホットメルト接
着剤４が入られており、タンク３の底面には金属製のロ
ーラー５が回転している。タンク３とローラー５には僅
かの隙間が設けられ、ローラー５の回転によってローラ
ー５の表面にホットメルト接着剤が薄く塗られる。A molten hot-melt adhesive 4 is put in a tank 3 of a roll coater, and a metal roller 5 is rotated on the bottom surface of the tank 3. A slight gap is provided between the tank 3 and the roller 5, and the surface of the roller 5 is thinly coated with the hot melt adhesive by the rotation of the roller 5.
記録膜あるいは記録情報に対応する微細な凹凸を有する
平板状基板６が、このローラー５とアンダーローラー７
との間を通過するとき、ローラー５の表面にあるホット
メルト接着剤が平板上基板６の表面に転写される。The flat substrate 6 having fine irregularities corresponding to the recording film or the recorded information is the roller 5 and the under roller 7.
The hot-melt adhesive on the surface of the roller 5 is transferred to the surface of the flat plate substrate 6 when passing through the space between and.
この後、２枚の平板上基板のホットメルト接着剤塗布面
同士を対向させて貼合わせ、圧力を印加することによっ
て、接着が完了する。After that, the hot melt adhesive application surfaces of the two flat-plate substrates are made to face each other and pasted together, and pressure is applied to complete the adhesion.
発明が解決しようとする課題 しかしながら、ホットメルト接着剤をロールコート法に
よって塗布すると、ロール状の接着剤を基板面上に転写
する際に接着剤の粘性から基板表面には平坦になるわけ
ではなく、塗布方向に平行な方向性を持つ周期性の網目
状の模様（ロール目）を生ずる。この為に、この網目同
士を貼合わせると、そのなす角度によって規則的な凹凸
模様が発生し、これがプレス工程を経て基板の変形とな
ってしまうという問題があった。However, when the hot-melt adhesive is applied by the roll coating method, the viscosity of the adhesive does not flatten the substrate surface when the roll-shaped adhesive is transferred onto the substrate surface. , A periodic net-like pattern (roll) having a direction parallel to the coating direction is generated. For this reason, when the meshes are attached to each other, a regular uneven pattern is generated depending on the angle formed by the meshes, which causes a deformation of the substrate through a pressing process.
課題を解決するための手段 本発明は、この課題を解決するため、平板状基板の少な
くとも２枚のそれぞれにホットメルト接着剤を前記各平
板状基板の面に平行な直線方向に沿って塗布し、そのホ
ットメルト塗布面同士を対向させ、かつ塗布面表面に形
成されている前記直線方向に平行な直線状編目模様の方
向を30度以上の角度で合わせながら貼合わせるようにし
たことを特徴とする。Means for Solving the Problem In order to solve this problem, the present invention applies a hot melt adhesive to each of at least two flat plate-shaped substrates along a linear direction parallel to the surface of each flat plate-shaped substrate. The hot melt coating surfaces are opposed to each other, and the directions of the linear stitch pattern parallel to the linear direction formed on the surface of the coating surface are bonded at an angle of 30 degrees or more. To do.
作用 このようにすると、２枚の基板を貼合わせる時にその各
表面にあるロール目同士のなす角度によってモアル縞が
形成されるが、２枚の基板表面のロール目方向のなす角
度が小さいとモアレ縞の周期は元のロール目の周期より
もかなり大きくなってしまうのに対しそのなす角度を30
度以上にすることにより、貼合わせによってできるモア
レ縞を元のロール目周期の２倍以下にすることができ、
プレス後の変形を小さくすることができる。In this way, when two substrates are bonded together, Moal fringes are formed depending on the angle formed by the roll eyes on the respective surfaces, but if the angle formed by the roll eye directions on the two substrate surfaces is small, moire is generated. The stripe cycle is much longer than the original roll eye cycle, whereas the angle is 30
By setting the degree to be equal to or higher than, it is possible to reduce the moire fringes formed by bonding to less than twice the original roll eye cycle,
The deformation after pressing can be reduced.
実施例 以下、本発明の実施例を、第１図を参照しながら説明す
る。Example Hereinafter, an example of the present invention will be described with reference to FIG.
ホットメルト接着剤をロールコート法によって平板状基
板に塗布する工程は、従来の技術と同様である。しか
し、本実施例では、塗布後、基板同志を貼合わせる際
に、１枚目の基板１に対して２枚目の基板２を90度回転
させており、このため、貼合わせ後には、ロール目が直
交し、いわゆるモアレ縞による大きな周期の凹凸は発生
しない。The process of applying the hot melt adhesive to the flat substrate by the roll coating method is the same as the conventional technique. However, in this embodiment, the second substrate 2 is rotated by 90 degrees with respect to the first substrate 1 when the substrates are bonded together after coating, and therefore, after bonding, the rolls are not rolled. The eyes are orthogonal to each other, and so-called moire fringes do not cause unevenness having a large period.
なお、本実施例では、２枚の基板を貼合わせているが、
さらに、３枚以上の基板を貼合わせてなる情報記録担体
においても、その貼合わせ面それぞれにおいて、同様の
操作を行う作成法も考えられる。また、基板どうしの直
線状編目模様のなす角度は30度以上が最も好ましい。In addition, in this embodiment, two substrates are bonded together,
Further, in the case of an information record carrier formed by sticking three or more substrates together, a method of making the same operation on each sticking surface is also conceivable. The angle formed by the linear stitch patterns between the substrates is most preferably 30 degrees or more.
発明の効果 本発明により、ホットメルト接着剤をロールコート法に
よって塗布し貼合わせる際のディスクの歪みを抑えるこ
とができ、機械特性の安定したディスクを作成すること
ができる。EFFECTS OF THE INVENTION According to the present invention, it is possible to suppress the distortion of the disk when the hot melt adhesive is applied by the roll coating method and stuck together, and it is possible to produce a disk having stable mechanical properties.
第１図は本発明による平板状基板の貼合わせの実施例に
よる平板状記録担体を表す模式図、第２図は従来および
本発明におけるホットメルト貼合わせ工程の模式図、第
３図は従来例の平板状基板の貼合わせを表す模式図であ
る。 １……第１の基板、２……第２の基板、３……タンク、
４……ホットメルト接着剤、５……ローラー、６……ア
ンダーローラー、７……平板状基板、８……第１の基
板、９……第２の基板。FIG. 1 is a schematic diagram showing a flat record carrier according to an embodiment of laminating a flat substrate according to the present invention, FIG. 2 is a schematic diagram of a conventional and hot-melt laminating step in the present invention, and FIG. 3 is a conventional example. It is a schematic diagram showing the bonding of the flat substrate. 1 ... First substrate, 2 ... Second substrate, 3 ... Tank,
4 ... Hot melt adhesive, 5 ... Roller, 6 ... Under roller, 7 ... Flat substrate, 8 ... First substrate, 9 ... Second substrate.
Claims (2)
基板を１枚以上含む２枚以上の平板状基板を貼り合わせ
てなる平板状情報記録担体であって、前記平板状基板の
少なくとも２枚の少なくとも片面側にホットメルト接着
剤が塗布されており、該基板上のホットメルト塗布層同
士を対向させて貼合わされている接着層がホットメルト
塗布に起因する直線状編目模様の方向が対向する両面で
30度以上の角度をもっていることを特徴とする平板状情
報記録担体。1. A flat information recording carrier formed by bonding two or more flat substrates including one or more flat substrates having a structure for recording information, wherein at least two of the flat substrates are provided. A hot-melt adhesive is applied to at least one side of the sheet, and the hot-melt applied layers on the substrate are laminated such that the adhesive layers are opposed to each other in the direction of the linear stitch pattern caused by hot-melt application. On both sides
A flat information record carrier having an angle of 30 degrees or more.
基板を１枚以上含む２枚以上の平板状基板を貼り合わせ
てなる平板状情報記録担体の作製方法であって、前記平
板状基板の少なくとも２枚のそれぞれにホットメルト接
着剤が前記各平板状基板の面に平行な直線方向に沿って
塗布する工程と、前記ホットメルト接着剤が塗布された
平板状基板を、ホットメルト塗布面同士を対向させ、か
つ塗布面表面に形成されている前記直線方向に平行な直
線状編目模様の方向を30度以上の角度で合わせながら貼
合わせる工程とを含むことを特徴とする平板状情報記録
担体の作製方法。2. A method for producing a flat information recording carrier, which comprises bonding two or more flat substrates including one or more flat substrates having a structure for recording information, said flat substrate A hot melt adhesive is applied to each of at least two of the above in a linear direction parallel to the surface of each flat substrate, and the flat substrate coated with the hot melt adhesive is applied to the hot melt coated surface. A flat plate-shaped information recording comprising a step of facing each other and pasting while aligning a direction of a linear stitch pattern parallel to the linear direction formed on the surface of the coating surface at an angle of 30 degrees or more. Method for producing carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1142507A JPH0766569B2 (en) | 1989-06-05 | 1989-06-05 | Flat information recording medium and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1142507A JPH0766569B2 (en) | 1989-06-05 | 1989-06-05 | Flat information recording medium and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH038142A JPH038142A (en) | 1991-01-16 |
| JPH0766569B2 true JPH0766569B2 (en) | 1995-07-19 |
Family
ID=15316957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1142507A Expired - Fee Related JPH0766569B2 (en) | 1989-06-05 | 1989-06-05 | Flat information recording medium and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0766569B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9038231B2 (en) | 2011-12-27 | 2015-05-26 | Toyota Jidosha Kabushiki Kaisha | Wiper device for vehicle |
-
1989
- 1989-06-05 JP JP1142507A patent/JPH0766569B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH038142A (en) | 1991-01-16 |
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Legal Events
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|---|---|---|---|
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Free format text: PAYMENT UNTIL: 20070719 Year of fee payment: 12 |
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