JPH02273344A - Production of optical recording disk - Google Patents
Production of optical recording diskInfo
- Publication number
- JPH02273344A JPH02273344A JP9444489A JP9444489A JPH02273344A JP H02273344 A JPH02273344 A JP H02273344A JP 9444489 A JP9444489 A JP 9444489A JP 9444489 A JP9444489 A JP 9444489A JP H02273344 A JPH02273344 A JP H02273344A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- circular
- substrate
- bodies
- recording film
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 abstract description 5
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012461 cellulose resin Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000193 polymethacrylate Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 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、光学的記録ディスクの製造方法の改良に関す
る。特に、記録膜がその上に形成されている第１の基板
と離隔して第２の基板が形成され、第１の基板と第２の
基板との間に空間領域が形成されてなる光学的記録ディ
スクの製造方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a method of manufacturing an optical recording disk. Particularly, in an optical recording medium, a second substrate is formed apart from a first substrate on which a recording film is formed, and a spatial region is formed between the first substrate and the second substrate. This invention relates to improvements in the manufacturing method of recording discs.
〔従来の技術］
第９図参照
光学的記録ディスクとしては、ピット型と相変化型と光
磁気型とが知られている。しかし、いずれの型にしても
、その代表的構造は第９図にその断面を示すように、記
録膜２が形成されている第１の基板１と、プラスチック
シートを真空成型、圧空成型等の熱間成型法、圧縮成型
等の冷間成型法、または、無加熱押圧成型法を使用して
成型した第２の基板４とがスペーサ１０等を介して特定
の間隔を保って固着されており、第１の基板１と第２の
基板４との間に空間領域７が形成されている。[Prior Art] Refer to FIG. 9. As optical recording disks, pit type, phase change type, and magneto-optical type are known. However, no matter which type is used, the typical structure is as shown in the cross section of FIG. A second substrate 4 molded using a hot molding method, a cold molding method such as compression molding, or a non-heating press molding method is fixed to the second substrate 4 through a spacer 10 or the like while maintaining a specific interval. , a spatial region 7 is formed between the first substrate 1 and the second substrate 4.
以下に、その製造方法について説明する。予め裏面にレ
ーベル印刷（図示せず）がなされている第１の基板１の
表面に記録１１１：２を形成し、スタンバを押圧してこ
れに信号を転写し、記録膜２上の外周部と中心部とを除
く領域に金属膜９を形成する。この記録膜２が形成され
た第１の基板１をスペーサ１０を介して第２の基板４に
固着する。The manufacturing method will be explained below. A recording 111:2 is formed on the surface of the first substrate 1, which has been previously printed with a label (not shown) on the back surface, and the signal is transferred to this by pressing the standby, and the outer peripheral part on the recording film 2 and A metal film 9 is formed in the region except for the center portion. The first substrate 1 on which the recording film 2 is formed is fixed to the second substrate 4 via a spacer 10.
［発明が解決しようとする課題］
古くは、第２の基板４に射出成型法等を使用して成型し
た厚肉の基板が使用されていたので、それと比べると上
記構造の光学的記録ディスクは第２の基板４の材料費が
節約できるという利益はあるが、製造工程が複雑で、工
数も多く、当然歩留りも低いという欠点がある。[Problems to be Solved by the Invention] In the past, a thick substrate molded by injection molding or the like was used as the second substrate 4. Compared to that, the optical recording disk with the above structure has Although there is an advantage in that the material cost of the second substrate 4 can be saved, there are disadvantages in that the manufacturing process is complicated, the number of man-hours is large, and the yield is naturally low.
本発明の目的は、これらの欠点を解消することにあり、
基板材料費が節約でき、しかも、製造工程が簡単で工数
が少なく、したがって生産性が高く、歩留りが良好な光
学的記録ディスクの製造方法を提供することにある。The purpose of the present invention is to eliminate these drawbacks,
It is an object of the present invention to provide a method for manufacturing an optical recording disk, which can save substrate material costs, has a simple manufacturing process, requires few man-hours, and has high productivity and good yield.
上記の目的は、第１の基板（１）となる第１の板状体（
１１）上に、円形状記録膜（２）を少なくとも１個形成
し、この円形状記録膜（２）のそれぞれの周辺（２１）
と中心部を囲む領域（２２）とに、樹脂よりなる円形状
壁状体（３）（３′）を形成し、前記の第１の板状体（
１１）上に、第２の基板（４）となる第２の板状体（４
１）を載置し、前記の第２の板状体（４１）を前記の円
形状記録膜（２）に押圧して、前記の円形状壁状体（３
）（３’）を介して、前記の第２の板状体（４１）と前
記の円形状記録膜（２）との間隔を特定の値に固定し、
前記の第１の板状体（１１）と前記の第２の板状体（４
１）とを前記の円形状壁状体（３）にそって切断する光
学的記録ディスクの製造方法によって達成される。The above purpose is to prepare the first plate-shaped body (
11) At least one circular recording film (2) is formed on the periphery (21) of each circular recording film (2).
and a region (22) surrounding the central part, circular wall bodies (3) (3') made of resin are formed, and the first plate body (
11) A second plate-shaped body (4) serving as a second substrate (4) is placed on top of the second plate-shaped body (4).
1), press the second plate-like body (41) against the circular recording film (2), and press the circular wall-like body (3).
) (3'), fixing the distance between the second plate-shaped body (41) and the circular recording film (2) to a specific value;
The first plate-like body (11) and the second plate-like body (4)
1) is achieved by a method of manufacturing an optical recording disk in which the above-mentioned optical recording disk is cut along the circular wall body (3).
〔作用］
第１の板状体１１上に少なくとも１個の円形状記録膜２
を形成し、円形状記録膜２のそれぞれの周辺２１と中心
部を囲む領域２２とに、例えば熱可塑性樹脂よりなる円
形状壁状体３・３′を形成し、その上に第２の板状体４
１を載置し、その上から加熱したプレス板６を使用して
、第１の板状体１１の外側に設けられた特定の高さを有
する間隔固定手段５に第２の板状体４１が接触するまで
押圧すれば、第２の板状体４１と円形状記録膜２との間
隔は特定の値に固定される。次いで、第１の板状体１１
と第２の板状体４Ｘとを円形状壁状体３にそって切断す
れば、円形状記録膜２が形成されている第１の基板１と
特定の間隔をもって固着された第２の基板４との間に空
間領域７が形成されている光学的記録ディスクが完成す
る。[Function] At least one circular recording film 2 on the first plate-shaped body 11
Circular wall bodies 3 and 3' made of, for example, thermoplastic resin are formed on the periphery 21 and the area 22 surrounding the center of the circular recording film 2, and a second plate is formed thereon. Shape 4
The second plate-like body 41 is placed on the spacing fixing means 5 having a specific height provided on the outside of the first plate-like body 11 using a press plate 6 which is heated from above. If they are pressed until they come into contact with each other, the distance between the second plate-shaped body 41 and the circular recording film 2 is fixed at a specific value. Next, the first plate-shaped body 11
and the second plate-like body 4X are cut along the circular wall-like body 3 to form a second substrate fixed to the first substrate 1 on which the circular recording film 2 is formed with a specific spacing. An optical recording disk in which a spatial region 7 is formed between the two regions is completed.
第１の板状体１１と第２の板状体４１とを連続シート状
とし、これらを自動送りしながら上記工程を実行すれば
、量産化が極めて容易に可能である。If the first plate-like body 11 and the second plate-like body 41 are made into continuous sheets and the above steps are carried out while automatically feeding them, mass production is possible very easily.
〔実施例］
以下、図面を参照しつ＼、本発明の一実施例に係る光学
的記録ディスクの製造方法について説明する。[Embodiment] Hereinafter, a method for manufacturing an optical recording disk according to an embodiment of the present invention will be described with reference to the drawings.
第２図、第３図参照
第３図は平面図であり、第２図は第３図のＢＢ断面図で
ある。Refer to FIGS. 2 and 3. FIG. 3 is a plan view, and FIG. 2 is a BB sectional view of FIG. 3.
プラスチックまたはプラスチックフィルムの積層体より
なる連続シート状の第１の板状体ｌｌ上に順次円形状記
録膜２を形成する。第１の板状体１１の材料としては、
ポリエステル、ポリアミド、ポリカーボネート、ポリメ
タクリレート、ポリスチレン、塩化ビニール、セルロー
ズ系樹脂等の他、これらの樹脂とポリエチレン、ポリプ
ロピレン等のポリオレフィン系樹脂と紙、アルミニウム
等との積層体、または、共押出しシート等が好適である
。円形状記録膜２にスタンバを押圧することによって信
号を転写する。なお、スタンバを円形状記録膜２にでは
なく、板状体１１上に直接押圧転写してもよく、また、
紫外線硬化型樹脂等を使用して円形状記録膜２を形成し
てもよい。次いで、ピット信号が形成されている円形状
記録膜２上にアルミニウム等の金属膜（図示せず）を蒸
着法、スパッタ法等を使用して形成する。A circular recording film 2 is sequentially formed on a continuous sheet-like first plate-like body 11 made of plastic or a laminate of plastic films. The material of the first plate-shaped body 11 is as follows:
In addition to polyester, polyamide, polycarbonate, polymethacrylate, polystyrene, vinyl chloride, cellulose resins, etc., laminates or coextruded sheets of these resins, polyolefin resins such as polyethylene and polypropylene, paper, aluminum, etc. suitable. A signal is transferred by pressing a stand bar against the circular recording film 2. Note that the stand bar may be transferred by pressure directly onto the plate-like body 11 instead of onto the circular recording film 2;
The circular recording film 2 may be formed using an ultraviolet curable resin or the like. Next, a metal film (not shown) such as aluminum is formed on the circular recording film 2 on which the pit signals are formed using a vapor deposition method, a sputtering method, or the like.
第４図、第５図参照
第５図は平面図であり、第４図は第５図のＣ−Ｃ断面図
である。See FIGS. 4 and 5. FIG. 5 is a plan view, and FIG. 4 is a sectional view taken along the line CC in FIG.
円形状記録膜２のそれぞれの周辺２１と中心部を囲む’
Ｊ 域２２とに樹脂を印刷、滴下、コート等の方法を使
用して塗布し、円形状壁状体３・３′を形成する。この
円形状壁状体３・３′の高さは、形成される光学的記録
ディスクの円形状記録膜２と第２の基板４七の間隔より
若干高くしておくことが必要である。円形状壁状体３・
３′を形成する樹脂としては、一般にホットメルト樹脂
、ワックス等の熱可塑性樹脂、紫外線硬化型樹脂等が使
用されるが、これに限定されるものではない。なお、以
下の工程は、熱可塑性樹脂を使用する場合について説明
する。surrounding each periphery 21 and center of the circular recording film 2'
Resin is applied to the J area 22 using a method such as printing, dropping, coating, etc. to form circular wall bodies 3 and 3'. It is necessary that the height of the circular wall bodies 3, 3' be slightly higher than the distance between the circular recording film 2 and the second substrate 47 of the optical recording disk to be formed. Circular wall-shaped body 3・
As the resin forming 3', hot melt resins, thermoplastic resins such as wax, ultraviolet curing resins, etc. are generally used, but the resin is not limited thereto. Note that the following steps will be explained in the case where a thermoplastic resin is used.
第６図、第１図参照
第６図は平面図であり、第１図は第６図のＡＡ断面図で
ある。6 and 1. FIG. 6 is a plan view, and FIG. 1 is a cross-sectional view taken along line AA in FIG. 6.
円形状壁状体３・３′が形成されている連続シート状の
第１の板状体１１を、表面が平滑なテーブル１２上に、
上記の第１の板状体１１が滑動可能なように載置し、こ
の第１の板状体１１上に連続シート状の第２の板状体４
１を載置し、加熱したプレス板６をもって押圧する。こ
の時、連続シート状の第１の板状体１１を挟んで両側に
設けられている特定の高さを有する間隔固定手段５によ
ってプレス板６の下方への移動が規制されるので、円形
状記録膜２と第２の板状体４１との間隔が特定の値にな
るように円形状壁状体３・３′は押圧される。プレス板
６を第２の基板４から離隔すれば、円形状壁状体３・３
′をなす樹脂が硬化して第１の板状体１１と第２の板状
体４１とが相互に固着される。なお、第２の板状体４１
の材料としては、ポリエステル、ポリアミド、ポリカー
ボネート、ポリメタクリレート、ポリスチレン、塩化ビ
ニール、セルローズ系樹脂等の透明樹脂が好適である。A continuous sheet-like first plate-like body 11 on which circular wall-like bodies 3 and 3' are formed is placed on a table 12 with a smooth surface.
The above-mentioned first plate-like body 11 is placed so as to be slidable, and a continuous sheet-like second plate-like body 4 is placed on this first plate-like body 11.
1 is placed and pressed using a heated press plate 6. At this time, the downward movement of the press plate 6 is regulated by the interval fixing means 5 having a specific height provided on both sides of the continuous sheet-shaped first plate body 11, so that the press plate 6 can be formed into a circular shape. The circular wall bodies 3 and 3' are pressed so that the distance between the recording film 2 and the second plate body 41 becomes a specific value. If the press plate 6 is separated from the second substrate 4, the circular wall-like bodies 3.
The resin forming the part ' is cured, and the first plate-like body 11 and the second plate-like body 41 are fixed to each other. Note that the second plate-like body 41
Suitable materials include transparent resins such as polyester, polyamide, polycarbonate, polymethacrylate, polystyrene, vinyl chloride, and cellulose resin.
第７図参照 第７図は光学的記録ディスクの断面図である。See Figure 7 FIG. 7 is a cross-sectional view of the optical recording disk.
第１の板状体１１と第２の板状体４１とを円形状壁状体
３にそって切断すると同時に円形状壁状体３′にそって
切断して中心穴を形成すれば、記録膜２が形成されてい
る第１の基板ｌと第２の基板４との間に空間領域７が形
成されている光学的記録ディスクが完成する。If the first plate-like body 11 and the second plate-like body 41 are cut along the circular wall-like body 3 and simultaneously cut along the circular wall-like body 3' to form a center hole, recording is possible. An optical recording disc is completed in which a spatial region 7 is formed between the first substrate l, on which the film 2 is formed, and the second substrate 4.
連続シート状の第１の板状体１１と第２の板状体４１と
をそれぞれ自動送りしながら上記の工程を実行すること
によって量産化が極めて容易に可能である。Mass production is extremely easily possible by carrying out the above steps while automatically feeding the continuous sheet-shaped first plate-like body 11 and second plate-like body 41, respectively.
第８図参照
なお、上記工程において、第１の板状体１１上に円形状
の記録膜２を形成し、その周辺２１と中心部を囲む領域
２２とに樹脂よりなる円形状壁状体３・３′を形成する
工程が終了した段階で、第１の板状体１１を円形状壁状
体３にそって切断し、特定の高さの円形状側壁８１を有
する型８の中に挿入し、その上に第２の基板４を載置し
てプレス板６を使用して、第２の基板４が型８の側壁８
１に接触するまで第２の基板４を円形状記録膜２に押圧
し、円形状記録膜２と第２の基板４との間隔を特定の値
に固定してもよい。Refer to FIG. 8. In the above process, a circular recording film 2 is formed on the first plate-like body 11, and a circular wall-like body 3 made of resin is formed in a region 22 surrounding the periphery 21 and the center. - At the stage where the step of forming 3' is completed, the first plate-shaped body 11 is cut along the circular wall-shaped body 3 and inserted into the mold 8 having a circular side wall 81 of a specific height. Then, place the second substrate 4 thereon and use the press plate 6 to press the second substrate 4 onto the side wall 8 of the mold 8.
The distance between the circular recording film 2 and the second substrate 4 may be fixed at a specific value by pressing the second substrate 4 against the circular recording film 2 until it comes into contact with the circular recording film 2 .
（発明の効果〕
以上説明せるとおり、本発明に係る光学的記録ディスク
の製造方法においては、第１の基板と第２の基板とのい
ずれにも板状体を使用しているので、材料費が節約でき
るとともに基板の成型工程が不要になる。また、第１の
板状体上に形成された円形状記録膜の周辺と中心部を囲
む領域とに熱可塑性樹脂、紫外線硬化型樹脂等からなる
円形状壁状体を形成し、その上に第２の板状体を載置し
て押圧し、円形状記録膜と第２の板状体との間隔を特定
の値に固定するので、製造工程が極めて簡単になり、工
数も少なくなって生産性が向上し、量産化も容易になり
、当然歩留りも向上する。(Effects of the Invention) As explained above, in the method for manufacturing an optical recording disk according to the present invention, since a plate-like body is used for both the first substrate and the second substrate, the material cost is reduced. In addition, the area surrounding the periphery and center of the circular recording film formed on the first plate is made of thermoplastic resin, ultraviolet curing resin, etc. A circular wall-like body is formed, a second plate-like body is placed on top of the wall-like body, and the second plate-like body is pressed to fix the distance between the circular recording film and the second plate-like body to a specific value. The manufacturing process becomes extremely simple, the number of man-hours is reduced, productivity is improved, mass production is facilitated, and yields are naturally improved.
第１図〜第８図は、本発明の一実施例に係る光学的記録
ディスクの製造方法の工程図である。
第９図は、従来技術に係る光学的記録ディスクの断面図
である。
１ ・
１１・
１２・
２ ・
２１・
２２・
３．
４ ・
４１・
５ ・
６ ・
７ ・
８ ・
８１・
・・第１の基板、
・・第１の板状体、
・・テーブル、
・・円形状記録膜、
・・円形状記録膜の周辺、
・・円形状記録膜の中心部を囲む領域、３′・・・円形
状壁状体、
・・第２の基板、
・・第２の板状体、
・・間隔固定手段、
・・プレス板、
・・空間領域、
・・型、
・・型の側壁、
・金属層、
１０・
・スペーサ。1 to 8 are process diagrams of a method for manufacturing an optical recording disk according to an embodiment of the present invention. FIG. 9 is a sectional view of an optical recording disk according to the prior art. 1 ・ 11 ・ 12 ・ 2 ・ 21 ・ 22 ・ 3. 4, 41, 5, 6, 7, 8, 81...first substrate,...first plate-shaped body,...table,...circular recording film,...periphery of the circular recording film, ...A region surrounding the center of the circular recording film, 3'...Circular wall-like body, ...Second substrate, ...Second plate-like body, ...Spacing fixing means, ...Press plate , ... spatial region, ... mold, ... side wall of mold, - metal layer, 10. - spacer.
Claims (1)
円形状記録膜（２）を少なくとも１個形成し、該円形状
記録膜（２）のそれぞれの周辺（２１）と中心部を囲む
領域（２２）とに、樹脂よりなる円形状壁状体（３）（
３′）を形成し、 前記第１の板状体（１１）上に、第２の基板（４）とな
る第２の板状体（４１）を載置し、 前記第２の板状体（４１）を前記円形状記録膜（２）に
押圧して、前記円形状壁状体（３）（３′）を介して、
前記第２の板状体（４１）と前記円形状記録膜（２）と
の間隔を特定の値に固定し、 前記第１の板状体（１１）と前記第２の板状体（４１）
とを前記円形状壁状体（３）にそって切断する 工程を有することを特徴とする光学的記録ディスクの製
造方法。[Claims] On the first plate-shaped body (11) serving as the first substrate (1),
At least one circular recording film (2) is formed, and a circular wall body made of resin ( 3)(
3'), and placing a second plate-like body (41) that will become the second substrate (4) on the first plate-like body (11), (41) is pressed against the circular recording film (2) through the circular wall bodies (3) and (3'),
The distance between the second plate-like body (41) and the circular recording film (2) is fixed to a specific value, and the distance between the first plate-like body (11) and the second plate-like body (41) is fixed to a specific value. )
A method for manufacturing an optical recording disk, comprising the step of cutting the disk along the circular wall-like body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9444489A JP2666463B2 (en) | 1989-04-13 | 1989-04-13 | Method of manufacturing optical recording disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9444489A JP2666463B2 (en) | 1989-04-13 | 1989-04-13 | Method of manufacturing optical recording disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02273344A true JPH02273344A (en) | 1990-11-07 |
| JP2666463B2 JP2666463B2 (en) | 1997-10-22 |
Family
ID=14110431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9444489A Expired - Fee Related JP2666463B2 (en) | 1989-04-13 | 1989-04-13 | Method of manufacturing optical recording disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2666463B2 (en) |
-
1989
- 1989-04-13 JP JP9444489A patent/JP2666463B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2666463B2 (en) | 1997-10-22 |
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