JPH0567350A - Optical information recording medium substrate, its substrate stamper, optical information recording medium using its substrate and its manufacture - Google Patents
Optical information recording medium substrate, its substrate stamper, optical information recording medium using its substrate and its manufactureInfo
- Publication number
- JPH0567350A JPH0567350A JP3158402A JP15840291A JPH0567350A JP H0567350 A JPH0567350 A JP H0567350A JP 3158402 A JP3158402 A JP 3158402A JP 15840291 A JP15840291 A JP 15840291A JP H0567350 A JPH0567350 A JP H0567350A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- optical information
- recording
- recording area
- recording medium
- 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
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は光情報記録媒体、特に、
その製造過程で精度のよい加工ができる構造の基板を用
いた光情報記録媒体及びその製造方法に関する。BACKGROUND OF THE INVENTION The present invention relates to an optical information recording medium, especially
The present invention relates to an optical information recording medium using a substrate having a structure that can be processed with high precision in the manufacturing process, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】有機色素系光ディスクの製造工程で記録
層をスピンナー塗布により設けることは良く知られて技
術である。通常はこのようにして得た記録媒体を貼り合
せ、エアーサンドイッチ構造にしている。図３を参照し
て具体的に説明すると、図３は円板形ディスクの左半分
の断面図である。この場合、基板１の記録領域に記録層
５を有し、外周部と内周部の非記録領域に接着層４があ
る。更に、基板の反対面にはハードコート層６を有す
る。このような光記録媒体二枚を、記録層５が内側にな
るように、内周スペーサ２と外周スペーサ３とを挾んで
サンドイッチ状に接着したものである。2. Description of the Related Art It is a well known technique to provide a recording layer by spinner coating in the manufacturing process of an organic dye-based optical disk. Usually, the recording media thus obtained are stuck together to form an air sandwich structure. More specifically, referring to FIG. 3, FIG. 3 is a sectional view of the left half of the disc-shaped disc. In this case, the recording layer 5 is provided in the recording area of the substrate 1, and the adhesive layer 4 is provided in the non-recording areas of the outer peripheral portion and the inner peripheral portion. Further, a hard coat layer 6 is provided on the opposite surface of the substrate. Two such optical recording media are sandwiched so that the inner peripheral spacer 2 and the outer peripheral spacer 3 are sandwiched so that the recording layer 5 is located inside.
【０００３】この接着層４には、生産性を高めるために
光硬化型の接着剤が用いられている。A photo-curing adhesive is used for the adhesive layer 4 in order to improve productivity.
【０００４】この時の問題点として接着部にはみ出して
塗布された色素による１）接着強度の低下及び２）接着
剤硬化度の低下に伴う未硬化モノマーによる保存時の記
録材劣化の促進がある。これらの改良としては、 （Ａ）色素溶解度の高い接着剤の改良 （Ｂ）接着部に付着した色素を拭き取る方法（特開昭６
３−４７１９４、特開昭６３−２３４４２９） （Ｃ）接着部に付着した色素を溶媒により洗い流す方法
（特開昭６３−２３４４２８） などが提案されている。Problems at this time include 1) a decrease in adhesive strength due to the dye applied to the adhesive portion and 2) acceleration of deterioration of the recording material at the time of storage due to uncured monomer due to a decrease in the curing degree of the adhesive. .. These improvements include (A) improvement of an adhesive having a high dye solubility, and (B) a method of wiping off a dye adhering to an adhesive portion (Japanese Patent Laid-Open No. Sho 6-62).
3-47194, JP-A-63-234429) (C) A method of washing away the dye adhering to the adhesive portion with a solvent (JP-A-63-234428) and the like have been proposed.
【０００５】この（Ｃ）の方法を図５を参照して具体的
に説明すると、ターンテーブル１１に円板状の基板１を
載せて回転させながら有機色素を含有する記録層形成液
を塗布し、記録層５を形成後、外周の非記録領域にはみ
出した記録層を除いている。そのはみ出した記録層の除
去方法は、記録層は溶解するが基板１は溶解しない溶剤
９をノズル１０から吐き出し非記録部の表面を流下させ
て記録領域からはみ出した記録層を溶解して除くもので
ある。The method (C) will be described in detail with reference to FIG. 5. The disk-shaped substrate 1 is placed on the turntable 11 and is rotated to apply a recording layer forming liquid containing an organic dye. After forming the recording layer 5, the recording layer protruding to the non-recording area on the outer periphery is removed. The method of removing the protruding recording layer is to remove the recording layer protruding from the recording area by discharging a solvent 9 that dissolves the recording layer but does not dissolve the substrate 1 from the nozzle 10 to flow down the surface of the non-recording portion. Is.
【０００６】ところで上記各方法の問題点を指摘する
と、 （Ａ）は接着強度と保存性とを両立させるのが困難であ
る。[0006] By the way, to point out the problems of each of the above methods, it is difficult for (A) to achieve both adhesive strength and storage stability.
【０００７】（Ｂ）の拭き取り方式では拭き取り材の吸
収力の問題、拭き取り材の交換の問題、記録膜除去の境
界が大きくにじむなどの欠点があった。The wiping method of (B) has drawbacks such as a problem of absorbing power of the wiping material, a problem of exchanging the wiping material, and a large bleeding of the boundary for removing the recording film.
【０００８】（Ｃ）についても色素記録膜溶剤を使用す
るため、ディスク基板上での溶剤のはね（飛び散り）や
溶剤流出管（ノズル）先端の溶剤だまり、又、溶剤の噴
出開始時の圧力の変動による及び溶剤噴射終了時のノズ
ル先端での溶剤の飛び散りが起きてしまい記録エリア内
の記録膜を溶かし、欠陥を生じさせていた。Also in (C), since the solvent for the dye recording film is used, the solvent splashes (scatters) on the disk substrate, the solvent pool at the tip of the solvent outflow pipe (nozzle), and the pressure at the start of solvent ejection. Of the solvent and the scattering of the solvent at the tip of the nozzle at the end of solvent injection, which melts the recording film in the recording area and causes a defect.
【０００９】仮に（Ｃ）方法でうまく除去できたとして
も連続で除去を行うと、吐出圧の変動等で除去部が記録
エリアまで達してしまうものが何枚か出てきてしまう。Even if the method (C) can be successfully removed, if the removal is continuously performed, some of the removed portions may reach the recording area due to variations in the ejection pressure.
【００１０】[0010]
【発明が解決しようとする課題】本発明は従来技術の上
記問題を解決し、例えばエアーサンドイッチ構造の場
合、 １）外周端の非記録領域に付着した不用色素の安定的な
除去、 ２）接着剤が記録領域にはみ出して記録層を劣化させる
のを防止する、 ３）色素が接着剤に混入して接着力を低下させるのを防
止する、 ような基板、光情報記録媒体及びその製造方法を提供し
ようとするものである。The present invention solves the above-mentioned problems of the prior art, for example, in the case of an air sandwich structure, 1) stable removal of unnecessary dye adhering to the non-recording area at the outer peripheral edge, 2) adhesion. A substrate, an optical information recording medium, and a method of manufacturing the same, in which the agent is prevented from squeezing out into the recording area and deteriorating the recording layer, and 3) preventing the dye from being mixed with the adhesive to reduce the adhesive strength. It is the one we are trying to provide.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
の本発明の構成は特許請求の範囲に記載のとおりの光情
報記録媒体用基板、その基板用スタンパー、その基板を
用いた光情報記録媒体及びその製造方法である。The structure of the present invention for solving the above-mentioned problems is the substrate for an optical information recording medium, the stamper for the substrate, and the optical information recording using the substrate as described in the claims. A medium and a manufacturing method thereof.
【００１２】図面を参照して具体的に説明すると、本発
明の光情報記録媒体用基板は例えば図４（円板状ディス
ク及びターンテーブルの左半分の断面を示す）に示すよ
うに、円板状の基板１の場合周辺部に非記録部があり、
その内部に記録部があり、そこに記録層５が設けられて
いる。この記録部と非記録部との間に凸部Ａが存在す
る。この凸部Ａは円板の縁と同心円状に連続していても
一部で切れて不連続になっていてもよい。Explaining in detail with reference to the drawings, a substrate for an optical information recording medium of the present invention has a disc shape as shown in, for example, FIG. 4 (a cross section of a left half of a disc and a turntable). In the case of substrate 1 in the shape of stripe
There is a recording section inside and a recording layer 5 is provided therein. The convex portion A exists between the recording portion and the non-recording portion. The convex portion A may be concentrically continuous with the edge of the disc or may be partially discontinuous and discontinuous.
【００１３】このような形状の基体１を用いた光情報記
録媒体を作製するときの記録層５の形成方法を説明する
と、まずターンテーブル１）を回転することによって基
体１を回転させながらスピンコート法によって記録層５
を形成する。A method of forming the recording layer 5 when manufacturing an optical information recording medium using the substrate 1 having such a shape will be described. First, the turntable 1) is rotated to spin-coat the substrate 1 while rotating the substrate 1. Recording layer 5 by law
To form.
【００１４】次に非記録部にはみ出した記録層のみを溶
解する溶剤９を移動できるノズル１０から吐出させては
み出した記録層を除去する。この場合凸部Ａがあるため
に、ノズル１０から吐出する溶剤の圧力の変動、泡の破
裂等の原因で溶剤の流下状態に変動があっても凸部Ａに
よって溶剤がせき止められるので記録部に形成された記
録層５を損傷することがない。Next, the solvent 9 which dissolves only the recording layer protruding to the non-recording portion is discharged from a movable nozzle 10 to remove the recording layer protruding. In this case, since there is a convex portion A, the solvent is dammed by the convex portion A even if there is a fluctuation in the pressure of the solvent discharged from the nozzle 10 or a change in the flowing state of the solvent due to bubble rupture or the like. The formed recording layer 5 is not damaged.
【００１５】ノズル１０から吐出する溶剤の流下状態の
変動を装置のみで解消するのはかなり困難であることを
考えると、本発明の基板を用いることによって、低原価
で光情報記録媒体を得ることができる。Considering that it is quite difficult to solve the fluctuation of the flowing state of the solvent discharged from the nozzle 10 only by the apparatus, it is possible to obtain an optical information recording medium at low cost by using the substrate of the present invention. You can
【００１６】図１は本発明のエアーサンドイッチ構造の
光情報記録媒体であって、基板１の片面の記録部に記録
層５、凸部Ａの外周ともう一つの凸部Ａの内周の非記録
部に接着剤層４を有し、基板１の反対面にハードコート
層ｂを有する単板状の光情報記録媒体二枚を記録層５が
内側になるように、内周スペーサー２と外周スペーサー
３とを介して貼り合わせたものである。FIG. 1 shows an optical information recording medium having an air sandwich structure according to the present invention, in which a recording portion on one side of a substrate 1 has a recording layer 5, an outer circumference of a convex portion A and an inner peripheral portion of another convex portion A. Two single-plate-shaped optical information recording media having an adhesive layer 4 in the recording portion and a hard coat layer b on the opposite surface of the substrate 1 are arranged such that the inner peripheral spacer 2 and the outer periphery are arranged so that the recording layer 5 is inside. It is pasted through the spacer 3.
【００１７】上記接着剤層を非記録部に形成するときも
凸部Ａがあるので接着剤が記録層にはみ出すことがなく
製品の歩留りが向上する。Even when the adhesive layer is formed on the non-recording portion, since the convex portion A is present, the adhesive does not stick out to the recording layer and the product yield is improved.
【００１８】図２は本発明の基板１を用いた単板の光情
報記録媒体の例を示したもので基板１の片面に順に記録
層５、反射層７、保護層８を有し、反対面にハードコー
ト層６を有するものである。この単板の光情報記録媒体
は凸部Ａが下になるように置けば机と擦れて記録層を損
傷することがない。FIG. 2 shows an example of a single-plate optical information recording medium using the substrate 1 of the present invention, which has a recording layer 5, a reflective layer 7 and a protective layer 8 in that order on one side of the substrate 1 and the other side. It has a hard coat layer 6 on its surface. If this single-plate optical information recording medium is placed with the convex portion A facing downward, it will not rub against the desk and damage the recording layer.
【００１９】以下、本発明光情報記録媒体の材料につい
て説明する。Materials for the optical information recording medium of the present invention will be described below.
【００２０】基板 基板の必要特性としては基板側より記録再生を行う場合
のみ使用レーザ光に対して透明でなければならず、記録
層側から行う場合は透明である必要はない。基板材料と
しては例えばポリエステル、アクリル樹脂、ポリアミ
ド、ポリカーボネート樹脂、ポリオレフィン樹脂、フェ
ノール樹脂、エポキシ樹脂、ポリイミドなどのプラスチ
ック、ガラス、セラミックあるいは金属などを用いるこ
とができる。Substrate As a necessary characteristic of the substrate, it must be transparent to the laser light used only when recording / reproducing is performed from the substrate side, and need not be transparent when performing recording from the recording layer side. As the substrate material, for example, polyester, acrylic resin, polyamide, polycarbonate resin, polyolefin resin, phenol resin, epoxy resin, plastic such as polyimide, glass, ceramic or metal can be used.
【００２１】なお、基板の表面にトラッキング用の案内
溝や案内ピット、さらにアドレス信号などのプレフォー
マットが形成されていてもよい。A guide groove or a guide pit for tracking and a preformat such as an address signal may be formed on the surface of the substrate.
【００２２】下引き層 下引き層は（ａ）接着性の向上、（ｂ）水又はガスなど
のバリヤー、（ｃ）記録層の保存安定性の向上及び
（ｄ）反射率の向上、（ｅ）溶剤からの基板の保護、
（ｆ）案内溝、案内ピット、プレフォーマットの形成な
どを目的として使用される。（ａ）の目的に対しては高
分子材料例えばアイオノマー樹脂、ポリアミド樹脂、ビ
ニル系樹脂、天然樹脂、天然高分子、シリコーン、液状
ゴムなどの種々の高分子物質及びシランカップリング剤
などを用いることができ、（ｂ）及び（ｃ）の目的に対
しては上記高分子材料以外に無機化合物例えばＳｉ
Ｏ2、ＭｇＦ、ＳｉＯ、ＴｉＯ 、ＺｎＯ、ＴｉＮ、Ｓ
ｉＮなど、金属又は半金属例えばＺｎ、Ｃｕ、Ｓ、Ｎ
ｉ、Ｃｒ、Ｇｅ、Ｓｅ、Ａｕ、Ａｇ、Ａｌなどを用いる
ことができる。また、（ｄ）の目的に対しては金属、例
えばＡｌ、Ａｇ等や、金属光沢を有する有機薄膜、例え
ばメチン染料、キサンテン系染料等を用いることがで
き、（ｅ）及び（ｆ）の目的に対しては、紫外線硬化樹
脂、熱硬化樹脂、熱可塑性樹脂等を用いることができ
る。Undercoat layer The undercoat layer has (a) improved adhesion, (b) barrier against water or gas, (c) improved storage stability of the recording layer and (d) improved reflectance, (e) ) Protection of the substrate from solvents,
(F) It is used for the purpose of forming guide grooves, guide pits, preformats, and the like. For the purpose of (a), use of polymeric materials such as ionomer resins, polyamide resins, vinyl resins, natural resins, natural polymers, silicones, liquid rubbers and other various polymeric substances, and silane coupling agents. For the purposes of (b) and (c), in addition to the above polymeric materials, inorganic compounds such as Si
O 2 , MgF, SiO, TiO 2, ZnO, TiN, S
Metals or semi-metals such as iN such as Zn, Cu, S, N
i, Cr, Ge, Se, Au, Ag, Al or the like can be used. For the purpose of (d), a metal such as Al or Ag, or an organic thin film having a metallic luster such as a methine dye or a xanthene dye can be used, and the purposes of (e) and (f) For this, an ultraviolet curable resin, a thermosetting resin, a thermoplastic resin or the like can be used.
【００２３】保護層（読取面側ハードコート層） 保護層は、（ａ）光反射吸収層をその傷、ホコリ、汚れ
等から保護する、（ｂ）光反射吸収層の保存安定性の向
上、（ｃ）反射率の向上等を目的として使用される。こ
れらの目的に対しては、前記下引き層に示した材料を用
いることができる。また無機材料として、ＳｉＯ、Ｓｉ
Ｏ2なども用いすることができ、有機材料として、ポリ
メチルアクリレート、ポリカーボネート、エポキシ樹
脂、ポリスチレン、ポリエステル樹脂、ビニル樹脂、セ
ルロース、脂肪族系炭化水素樹脂、芳香族系炭化水素樹
脂、天然ゴム、スチレンブタジエン樹脂、クロロプレン
ゴム、ワックス、アルキッド樹脂、乾性油、ロジン等の
熱軟化性、熱溶融性樹脂も用いることができる。Protective Layer (Reading Side Hard Coat Layer) The protective layer (a) protects the light reflection / absorption layer from scratches, dust, dirt, etc. (b) Improves storage stability of the light reflection / absorption layer, (C) Used for the purpose of improving reflectance and the like. For these purposes, the materials shown in the undercoat layer can be used. Further, as inorganic materials, SiO, Si
O 2 and the like can also be used, and as the organic material, polymethyl acrylate, polycarbonate, epoxy resin, polystyrene, polyester resin, vinyl resin, cellulose, aliphatic hydrocarbon resin, aromatic hydrocarbon resin, natural rubber, A heat-softening or heat-melting resin such as styrene-butadiene resin, chloroprene rubber, wax, alkyd resin, drying oil or rosin can also be used.
【００２４】記録層 記録層はレーザー光の照射により何らかの光学的変化を
生じさせ、その変化により情報を記録するもので、有機
系の材料としては、ポリメチン色素、ナフタロシアニン
系、フタロシアニン系、スクアリリウム系、クロコニウ
ム系、ピリリウム系、ナフトキノン系、アントラキノン
系、キサンテン系、トリフェニルメタン系、金属錯体化
合物等が挙げられ、上記の染料を単独で用いてもよいし
二種以上の組合せにしてもよい。また無機系の記録層と
しては、Ｔｅ、Ｇｅ、Ｓｅ、Ｉｎ、Ｓｂ、Ｓｎ、Ｚｎ、
Ａｕ、Ａｌ、Ｃｕ、Ｐｔ等の金属、半金属を単独で用い
てもよいし、二種以上組合せた合金又は積層などでもよ
く、光学的変化のしかたは相変化、バブル、穴あけタイ
ブのいずれであってもよい。さらにＦｅ、Ｔｂ、Ｃｏを
主体とした光磁気記録層であってもよいし、スピロピラ
ン、フルキド系のフォトクロミック材料であってもよ
い。Recording Layer The recording layer causes some kind of optical change by irradiation with a laser beam and records information by the change, and examples of the organic material include polymethine dye, naphthalocyanine type, phthalocyanine type and squarylium type. , Croconium-based, pyrylium-based, naphthoquinone-based, anthraquinone-based, xanthene-based, triphenylmethane-based, metal complex compounds and the like, and the above dyes may be used alone or in combination of two or more. The inorganic recording layer includes Te, Ge, Se, In, Sb, Sn, Zn,
Metals such as Au, Al, Cu and Pt, semi-metals may be used alone, or alloys or laminated layers in which two or more kinds are combined may be used. The optical change may be a phase change, a bubble or a drilling type. It may be. Further, it may be a magneto-optical recording layer mainly composed of Fe, Tb and Co, or may be a spiropyran or fluquid photochromic material.
【００２５】記録層膜厚としては１００Å〜１０μｍ、
好ましくは２００Å〜２μｍ、膜形成方法としては、Ｃ
ＶＤ、スパッタ法、溶剤塗工法（例えば浸漬コーティン
グ、カーテンコーティング、スプレーコーティング、ス
ピンコーティング、ブレードコーティング、ローラーコ
ーティング等を用いることができる） 反射層 反射層は反射率が高く、腐食されにくいものが望まし
く、光沢を有する金属等が挙げられる。好ましくはＡ
ｌ、Ａｕなどが挙げられる。膜厚としては１００Å〜５
０μｍ、好ましくは２００Å〜２０μｍ、膜形成方法と
しては蒸着スパッタ法などが挙げられる。The thickness of the recording layer is 100Å to 10 μm,
Preferably 200Å to 2 μm, and the film forming method is C
VD, sputtering method, solvent coating method (for example, dip coating, curtain coating, spray coating, spin coating, blade coating, roller coating, etc. can be used) Reflective layer Reflective layer with high reflectance and corrosion resistance is desirable , A metal having gloss, and the like. Preferably A
1 and Au. The film thickness is 100Å ~ 5
0 μm, preferably 200 to 20 μm, and the film forming method includes vapor deposition sputtering method and the like.
【００２６】スペーサ 材料としてはプラスチックが好ましく、例えばポリカー
ボネート、ＡＢＳ、ポリオレフィン、ポリアミド、アク
リル、塩化ビニル系樹脂などが挙げられるが、内外周ス
ペーサの材料は同一であることが好ましい。The spacer material is preferably plastic, and examples thereof include polycarbonate, ABS, polyolefin, polyamide, acryl, and vinyl chloride resin, but it is preferable that the inner and outer spacers are made of the same material.
【００２７】接着剤 接着剤には特に制限はなく、公知の各種の接着剤を用い
ることができるが、無溶媒型接着剤、例えばエポキシ接
着剤、ＵＶ硬化型接着剤、ＵＶ硬化型エポキシ接着剤、
ＵＶ硬化型エン・チオール接着剤、ウレタン接着剤、シ
リコーン接着剤、アクリル系接着剤、ホットメルト接着
剤、感圧性接着剤等を用いることが望ましい。Adhesive The adhesive is not particularly limited, and various known adhesives can be used. Solventless adhesives such as epoxy adhesives, UV curable adhesives, and UV curable epoxy adhesives. ,
It is desirable to use a UV-curable ene / thiol adhesive, urethane adhesive, silicone adhesive, acrylic adhesive, hot melt adhesive, pressure-sensitive adhesive, or the like.
【００２８】スタンパの製造方法 スタンパに外周記録再生域外に凹部を設ける方法である
が、板にあらかじめドライエッチング等で凹部を設け、
以後の工程は従来のスタンパの製造方法と全く同様に行
えば容易に凹部は形成できる。Method of Manufacturing Stamper This is a method of forming a recess on the stamper outside the outer peripheral recording / reproducing area.
The recesses can be easily formed by performing the subsequent steps in exactly the same manner as the conventional stamper manufacturing method.
【００２９】凸部を有した基板の製造方法は上記スタン
パを用いれば射出成形方法や２Ｐ法、プレス法により容
易に得られるがスタンパに凹部が存在しない場合、接着
剤や溶融樹脂等で基板に形成すればよい。The method of manufacturing a substrate having a convex portion can be easily obtained by the injection molding method, the 2P method or the pressing method using the above stamper, but when the stamper has no concave portion, the substrate is coated with an adhesive or a molten resin. It may be formed.
【００３０】最後に外周端色素の除去法について述べる
と除去の際の基板の回転数は１５００〜２０００ｒｐｍ
が好ましく、溶剤については基板を侵さず、色素を溶解
する溶剤が好ましく、例えば２−メトキシエタノール、
２−エトキシエタノール、ジアセトンアルコール、フッ
化アルコールなどがあげられ、または上記以外の混合溶
媒であってもよい。Finally, the method of removing the peripheral edge dye will be described. The number of rotations of the substrate during the removal is 1500 to 2000 rpm.
Preferred is a solvent that does not attack the substrate and dissolves the dye, such as 2-methoxyethanol,
2-Ethoxyethanol, diacetone alcohol, fluorinated alcohol, etc. may be mentioned, or a mixed solvent other than the above may be used.
【００３１】[0031]
【発明の効果】以上説明したように、本発明によれば、
構造が容易で生産性にすぐれ、保存安定性、単板の場合
の耐擦傷性にすぐれた媒体が安定して得られる。As described above, according to the present invention,
A medium having a simple structure, excellent productivity, storage stability and scratch resistance in the case of a single plate can be stably obtained.
【図１】[Figure 1]
【図２】本発明の光情報記録媒体の具体例の断面の模式
図、FIG. 2 is a schematic cross-sectional view of a specific example of the optical information recording medium of the present invention,
【図３】従来の光情報記録媒体の断面の模式図、FIG. 3 is a schematic sectional view of a conventional optical information recording medium,
【図４】本発明の光情報記録媒体の製作工程の説明図、FIG. 4 is an explanatory view of a manufacturing process of the optical information recording medium of the present invention,
【図５】従来の光情報記録媒体の製作工程の説明図、FIG. 5 is an explanatory view of a manufacturing process of a conventional optical information recording medium,
Ｋ 記録再生領域 Ａ 凸部 １ 基板 ２ 内周スペーサ ３ 外周スペーサ ４ 接着層 ５ 記録層 ６ ハードコート層 ７ 反射層 ８ 保護層 ９ 溶剤 １０ ノズル １１ ターンテーブル K recording / reproducing area A convex portion 1 substrate 2 inner peripheral spacer 3 outer peripheral spacer 4 adhesive layer 5 recording layer 6 hard coat layer 7 reflective layer 8 protective layer 9 solvent 10 nozzle 11 turntable
───────────────────────────────────────────────────── フロントページの続き (72)発明者 寺村 薫 東京都大田区中馬込１丁目３番６号 株式 会社リコー内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kaoru Teramura 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd.
Claims (7)
報がスパイラル状または同心状に設けられ、それ以外の
領域が非記録領域である光情報記録媒体用基板におい
て、記録領域と非記録領域との境界部に連続又は不連続
の凸部を有することを特徴とする光情報記録媒体用基
板。1. A substrate for an optical information recording medium in which a guide groove and preformat information are provided spirally or concentrically in a recording area, and the other area is a non-recording area. A substrate for an optical information recording medium having a continuous or discontinuous convex portion at a boundary portion.
平坦面から突出していることを特徴とする請求項１記載
の光情報記録媒体用基板。2. The substrate for an optical information recording medium according to claim 1, wherein the convex portion projects from the flat surface so that the base portion forms a curved surface.
境界部に連続又は不連続の凹部を有することを特徴とす
る請求項１記載の光情報記録媒体用基板を成型するため
のスタンパー。3. A stamper for molding a substrate for an optical information recording medium according to claim 1, wherein a continuous or discontinuous concave portion is provided at a boundary between the recording area molding portion and the non-recording area molding portion. ..
それらの境界部に連続又は不連続の凸部を有し、記録領
域は基板面から順次記録層及び反射層を有する光情報記
録媒体の二枚が、記録領域が対向するように、スペーサ
ーを介して貼り合せられていることを特徴とする光情報
記録媒体。4. An optical information recording medium having a recording area and a non-recording area on one surface of a substrate and continuous or discontinuous convex portions at a boundary portion thereof, and the recording area having a recording layer and a reflective layer sequentially from the substrate surface. The optical information recording medium is characterized in that the two sheets are adhered to each other via a spacer so that the recording areas face each other.
枚の光情報記録媒体が貼り合せられていることを特徴と
する請求項５記載の光情報記録媒体。5. The optical information recording medium according to claim 5, wherein two optical information recording media are bonded together so that the convex portions facing each other do not contact each other.
それらの境界部に連続又は不連続の凸部を有し、記録領
域は基板面から順次記録層、および反射層を有し、必要
に応じて更に保護層を有することを特徴とする光情報記
録媒体。6. A recording area, a non-recording area, and continuous or discontinuous convex portions at a boundary portion between the recording area and the non-recording area on one surface of the substrate, and the recording area has a recording layer and a reflective layer sequentially from the substrate surface, An optical information recording medium further comprising a protective layer according to the above.
間に連続又は不連続の凸部を有する基板の記録領域に、
スピンコート法により記録層形成用の有機色素を塗布
し、非記録領域に色素は溶解するが基板は溶解させない
溶剤を連続的に吐出流下させ不用色素層を除去する工程
を含むことを特徴とする光情報記録媒体の製造方法。7. A recording area of a substrate having a continuous or discontinuous convex portion between the recording area and a non-recording area on the outer peripheral surface thereof,
It is characterized in that it comprises a step of applying an organic dye for forming a recording layer by a spin coating method and continuously discharging a solvent that dissolves the dye in the non-recording region but does not dissolve the substrate to remove the unnecessary dye layer. Manufacturing method of optical information recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158402A JPH0567350A (en) | 1991-06-28 | 1991-06-28 | Optical information recording medium substrate, its substrate stamper, optical information recording medium using its substrate and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158402A JPH0567350A (en) | 1991-06-28 | 1991-06-28 | Optical information recording medium substrate, its substrate stamper, optical information recording medium using its substrate and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0567350A true JPH0567350A (en) | 1993-03-19 |
Family
ID=15670967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3158402A Pending JPH0567350A (en) | 1991-06-28 | 1991-06-28 | Optical information recording medium substrate, its substrate stamper, optical information recording medium using its substrate and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0567350A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990005164A1 (en) * | 1988-11-02 | 1990-05-17 | Mitsubishi Corporation | Process for producing composite material composition |
| JPH05166226A (en) * | 1991-12-16 | 1993-07-02 | Sharp Corp | Optical disk and surface treatment thereof |
| KR100656185B1 (en) * | 2006-03-15 | 2006-12-13 | (주)크린파워 | Non-engine pulverizer |
-
1991
- 1991-06-28 JP JP3158402A patent/JPH0567350A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990005164A1 (en) * | 1988-11-02 | 1990-05-17 | Mitsubishi Corporation | Process for producing composite material composition |
| JPH05166226A (en) * | 1991-12-16 | 1993-07-02 | Sharp Corp | Optical disk and surface treatment thereof |
| KR100656185B1 (en) * | 2006-03-15 | 2006-12-13 | (주)크린파워 | Non-engine pulverizer |
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