JPS63106946A - Production of optical information recording medium - Google Patents
Production of optical information recording mediumInfo
- Publication number
- JPS63106946A JPS63106946A JP25070486A JP25070486A JPS63106946A JP S63106946 A JPS63106946 A JP S63106946A JP 25070486 A JP25070486 A JP 25070486A JP 25070486 A JP25070486 A JP 25070486A JP S63106946 A JPS63106946 A JP S63106946A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- substrates
- notch
- recording medium
- hole
- 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
- 230000003287 optical effect Effects 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000758 substrate Substances 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 abstract description 15
- 238000001723 curing Methods 0.000 abstract description 6
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 238000013007 heat curing Methods 0.000 abstract description 2
- 238000003848 UV Light-Curing Methods 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 13
- 239000011521 glass Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はレーザー光により情報の記録・再生を行なう光
学情報記録媒体の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of manufacturing an optical information recording medium in which information is recorded and reproduced using laser light.
［従来の技術］ 従来、光学情報記録媒体の製造方法として。[Conventional technology] Conventionally, as a manufacturing method for optical information recording media.
すでに、特開昭５９−１８６１５０号公報、特開昭６０
−２２６０４６号公報、特開昭６０−２２９２５６号公
報などで、２枚の基板間にスペーサーあるいはガラスピ
ーズなはさみ込んで中空構造にし、接着剤で貼り合わせ
る方法が知られている。Already, JP-A-59-186150 and JP-A-60
JP-A-226046 and JP-A-60-229256 disclose a method in which a spacer or glass beads are inserted between two substrates to form a hollow structure, and the substrates are bonded together with an adhesive.
これらの方法は、基板上に接着剤を塗布し、その上に他
の基板をかさね合せ、接着剤を熱硬化あるいは紫外線硬
化することにより記録媒体を得ているが、基板をかさね
合せた場合に基板間に空気がたき込まれ、接着剤が硬化
するまで基板の外側から圧力を加え、基板の形状を保持
する等の操作が必要であった。In these methods, a recording medium is obtained by coating an adhesive on a substrate, stacking another substrate on top of it, and curing the adhesive with heat or ultraviolet light. Operations such as forcing air between the substrates and applying pressure from the outside of the substrates until the adhesive hardens to maintain the shape of the substrates were required.
しかしながら、このようにして得られた記録媒体は、２
Ｓｉ板間にとじ込められた圧縮空気のために、経時的に
基板の歪みや変形を生じ、これらは記録再生時の回転む
らやフォーカスの調整が困難になるなどの原因となって
いた。However, the recording medium obtained in this way is
Compressed air trapped between the Si plates causes distortion and deformation of the substrate over time, which causes uneven rotation during recording and reproduction and difficulty in adjusting focus.
［発明が解決しようとする問題点］
本発明は上記の様な従来技術の問題点を解決し、硬化時
に加圧などの操作を必要とせず、基板に歪みや変形の生
ずることのない保存性の良好な光学情報記録媒体の製造
方法を提供することを目的とするものである。[Problems to be Solved by the Invention] The present invention solves the problems of the prior art as described above, and provides storage stability that does not require operations such as pressurization during curing and does not cause distortion or deformation of the substrate. It is an object of the present invention to provide a method for manufacturing a good optical information recording medium.
［問題点を解決するための手段］
即ち、本発明は、少なくとも１枚の基板にレーザー光に
より情報記録を行なう記録層が形成された２枚の基板を
、記録層を内側にして接着してなる光学情報記録媒体の
製造方法において、少なくとも１枚の基板に少なくとも
１個の穴あるいは切欠き部を設けて、２枚の基板を接着
することを特徴とする光学情報記録媒体の製造方法であ
る。[Means for Solving the Problems] That is, the present invention involves bonding two substrates, each of which has a recording layer for recording information using a laser beam, with the recording layer inside. This method of manufacturing an optical information recording medium is characterized in that at least one hole or notch is provided in at least one substrate and two substrates are bonded together. .
以下、図面に基づき本発明を説明する。The present invention will be explained below based on the drawings.
本発明の光学情報記録媒体の製造方法は少なくとも１枚
の基板にはレーザー光により情報記録を行なう記録層が
形成された２枚の基板のうち、少なくとも１枚の基板、
例えばディスク基板３に第１図に示す様な切欠き部ｌあ
るいは第２図に示す様な穴２を設け、１枚の基板の外周
及び内周に接着剤を塗布した後、スペーサーを介在せし
めて切欠き部あるいは穴を有する基板を重ね合せ、基板
の外部から加圧し、熱硬化、二液硬化、紫外線硬化など
により接着剤を硬化することにより厚みむらのない記録
媒体を得る方法である。The method for manufacturing an optical information recording medium of the present invention includes at least one substrate out of two substrates, on which at least one substrate is formed a recording layer for recording information using a laser beam;
For example, a notch 1 as shown in FIG. 1 or a hole 2 as shown in FIG. 2 is provided in the disk substrate 3, adhesive is applied to the outer and inner peripheries of one substrate, and then a spacer is interposed. In this method, substrates having cutouts or holes are stacked on top of each other, pressure is applied from the outside of the substrates, and the adhesive is cured by heat curing, two-component curing, ultraviolet curing, etc., thereby obtaining a recording medium with uniform thickness.
本発明において基板に設けられる切欠き部あるいは穴の
個数は少なくとも１個以上て、基板の形状又は大きさに
よっては複数個設けることができる。In the present invention, the number of notches or holes provided in the substrate is at least one, and a plurality of notches or holes may be provided depending on the shape or size of the substrate.
本発明において、切欠き部は、記録層にかかることは望
ましくなく、例えば１３０■■φのディスクを使用する
場合、外周より５■鳳より大きく基板内にはいり込まな
いものが良い。また切欠き部の形状は図面にはくさび状
のものを示したがどのような形状のものでも良い。In the present invention, it is not desirable for the notch to cover the recording layer, and for example, when a 130 mm diameter disc is used, it is preferable that the notch not extend into the substrate by more than 5 mm from the outer periphery. Furthermore, although the shape of the cutout portion is shown as a wedge shape in the drawing, it may be of any shape.
また、穴は、ディスク基板の場合、基板の外周及び内周
に塗布された接着剤間の任意の部分にあることが望まし
く、より好ましくは内周側の接着剤塗布部と記録層の間
にあるものがよい。In the case of a disk substrate, the hole is desirably located anywhere between the adhesive applied to the outer and inner peripheries of the substrate, and more preferably between the adhesive coated area on the inner periphery and the recording layer. Something is good.
本発明において用いられる基板は、一般に光学情報記録
媒体に使用されるものなら特に限定されず広範囲のもの
を用いることができ１例えば。The substrate used in the present invention is not particularly limited as long as it is generally used for optical information recording media, and a wide range of substrates can be used, for example.
ソーダガラス、石英、パイレックス、ポリエステル、ア
クリル樹脂、ポリメタクリル酸エステル樹脂、ポリオレ
フィン樹脂、フェノール樹脂、エポキシ樹脂、ポリアミ
ド、ポリイミドあるいは金属類等が挙げられる。Examples include soda glass, quartz, Pyrex, polyester, acrylic resin, polymethacrylate resin, polyolefin resin, phenol resin, epoxy resin, polyamide, polyimide, and metals.
また、本発明において用いられる接着剤も特別に限定す
るものではなく広範囲のものを使用できる。Further, the adhesive used in the present invention is not particularly limited, and a wide range of adhesives can be used.
本発明によって製造される光学情報記録媒体は、中空構
造をとってもとらなくても良いが、中空構造の構成をと
る場合に大きなメリットが発揮される。The optical information recording medium manufactured according to the present invention may or may not have a hollow structure, but a great advantage is exhibited when it has a hollow structure.
光学情報記録媒体は、記録・再生時に回転させるために
媒体自体のｆｆ１ｆｆｌバランスが良いものが必要であ
り、切欠き部あるいは穴をディスクの中心に対して対称
になる位置に第３図に示すように２個所、あるいはそれ
以上の個数を設けることができる。Optical information recording media must have a good ff1ffl balance in order to rotate during recording and playback, and the notches or holes are placed symmetrically with respect to the center of the disk as shown in Figure 3. Two or more locations can be provided.
本発明において、２枚の基板を接着後、穴は基板と同じ
材質を用いて封口、あるいは接着剤、ラベル、接着テー
プなどで封口するのが良い、また、切欠き部の場合には
、同様の方法を用いるか、予め切欠き部の接着剤量を調
節し基板の接着と同時に封口もする手段をとるのが望ま
しい。In the present invention, after bonding two substrates, the hole is preferably sealed using the same material as the substrate, or with adhesive, a label, adhesive tape, etc. In addition, in the case of a notch, the same applies. It is preferable to use the method described above, or to adjust the amount of adhesive in the notch in advance so that the substrate is bonded and the seal is sealed at the same time.
［作 用］
本発明の光学情報記録媒体の製造方法は、２枚の基板の
うち少なくとも１枚の基板に少なくとも１個所の穴ある
いは切欠き部を設けて２枚の基板を接着するので、基板
を重ね合せて外部から加圧して接着する際に、基板間の
中空部に幽閉された空気は圧縮されずに穴あるいは切欠
き部から外部へ放出され、基板の歪や変形を防止するこ
とができる。[Function] In the method for manufacturing an optical information recording medium of the present invention, at least one hole or notch is provided in at least one of the two substrates and the two substrates are bonded. When stacking the substrates and applying pressure from the outside to bond them, the air trapped in the hollow space between the substrates is not compressed and is released to the outside through the holes or notches, preventing distortion and deformation of the substrates. can.
［実施例］
次に、本発明を実施例をあげて説明するが、本実施例に
限定されるものてはない。[Example] Next, the present invention will be described with reference to Examples, but is not limited to these Examples.
実施例１
記録層を設けた厚さ１．２ｍｍ 、外径２００ｍｍ 、
内径３５ｍｍのディスク状透明ポリカーボネート基板に
、粒径０．５〜０．５９■Ｉのガラスピーズを１０重量
％含む２液混合室温硬化型シリコン系接着剤を基板の内
周および外周に２■ｌの幅で高さ１ｍｍにディスペンサ
ーを用いて塗布した。その後、幅５ ｍｍ、長さ５■Ｉ
の切欠き部を有し記録層を設けた上記と同材質の基板を
かさね合わせ、５ｇＩＣ１１２で加圧したのち、室温下
に放置した。約６時間後、基板間隔約０．６■で、厚み
むらが最大８０μ厘の中空構造の記録媒体を得た。Example 1 Recording layer provided, thickness 1.2 mm, outer diameter 200 mm,
A disk-shaped transparent polycarbonate substrate with an inner diameter of 35 mm was coated with 2 l of a two-component room temperature curing silicone adhesive containing 10% by weight of glass beads with a particle size of 0.5 to 0.59 l on the inner and outer peripheries of the substrate. It was applied using a dispenser to a width of 1 mm and a height of 1 mm. After that, width 5mm, length 5■I
The substrates made of the same material as above and having a notch portion and provided with a recording layer were stacked together, pressed with 5g IC112, and then left at room temperature. After about 6 hours, a recording medium having a hollow structure with a substrate spacing of about 0.6 .mu.m and thickness unevenness of 80 .mu.m at the maximum was obtained.
実施例２
実施例１と同様の基板を用いて、接着剤の塗布量を基板
の内周および外周に幅約２■■、高さ約１Ｉｌ−に塗布
したのち、切欠き部の大きさが幅４醜ｌ、長さ３ｍｍの
基板を用いて重ね合わせ、実施例１と同様に加圧した。Example 2 Using the same substrate as in Example 1, the adhesive was applied to the inner and outer peripheries of the substrate in a width of about 2■■ and a height of about 1Il, and then the size of the notch was Substrates with a width of 4 mm and a length of 3 mm were used to overlap each other, and pressure was applied in the same manner as in Example 1.
約６時間後、厚さ３．０ｍｍ 、厚みむらが最大９０終
■の記録媒体を得た。この記録媒体は接着時に切欠き部
は封口されていた。After about 6 hours, a recording medium with a thickness of 3.0 mm and a maximum thickness unevenness of 90 cm was obtained. The notch portion of this recording medium was sealed at the time of adhesion.
比較例１
実施例１と同様にして、切欠き部のない基板な重ね合せ
た所、中空部の空気圧のために放置中に基板がずれ、２
枚の基板が正確に貼り合わされた奴体とはならなかった
。また厚みむらは、酸大２５０終園であった。Comparative Example 1 In the same manner as in Example 1, the substrates without notches were stacked one on top of the other, and due to the air pressure in the hollow section, the substrates shifted while being left unused.
The body was not made up of two boards pasted together accurately. Also, the uneven thickness was at the end of 250 years.
［発明の効果］
以上説明した様に、本発明の製造方法によれば基板に歪
や変形が発生することのない保存性の良好な光学情報記
録媒体を極めて容易に得ることができる。[Effects of the Invention] As explained above, according to the manufacturing method of the present invention, it is possible to extremely easily obtain an optical information recording medium with good storage stability and no distortion or deformation of the substrate.
第１図乃至第３図は各々本発明の光学情報記録媒体の製
造方法に使用される穴あるいは切欠き部を設けた基板の
例を示す説明図である。
１・・・切欠き部
２・・・穴
３・・・基板FIGS. 1 to 3 are explanatory diagrams showing examples of substrates provided with holes or notches used in the method of manufacturing an optical information recording medium of the present invention. 1... Notch 2... Hole 3... Board
Claims (2)
録を行なう記録層が形成された２枚の基板を、記録層を
内側にして接着してなる光学情報記録媒体の製造方法に
おいて、少なくとも１枚の基板に少なくとも１個の穴あ
るいは切欠き部を設けて、２枚の基板を接着することを
特徴とする光学情報記録媒体の製造方法。(1) A method for manufacturing an optical information recording medium, in which two substrates, each of which has a recording layer for recording information using a laser beam, are bonded together with the recording layer inside. 1. A method of manufacturing an optical information recording medium, comprising: providing at least one hole or notch in a substrate and bonding two substrates together.
する特許請求の範囲第１項記載の光学情報記録媒体の製
造方法。(2) The method for manufacturing an optical information recording medium according to claim 1, wherein the hole or notch is sealed after bonding the two substrates together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25070486A JPS63106946A (en) | 1986-10-23 | 1986-10-23 | Production of optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25070486A JPS63106946A (en) | 1986-10-23 | 1986-10-23 | Production of optical information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63106946A true JPS63106946A (en) | 1988-05-12 |
Family
ID=17211801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25070486A Pending JPS63106946A (en) | 1986-10-23 | 1986-10-23 | Production of optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63106946A (en) |
-
1986
- 1986-10-23 JP JP25070486A patent/JPS63106946A/en active Pending
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