JPS60163245A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS60163245A JPS60163245A JP59018222A JP1822284A JPS60163245A JP S60163245 A JPS60163245 A JP S60163245A JP 59018222 A JP59018222 A JP 59018222A JP 1822284 A JP1822284 A JP 1822284A JP S60163245 A JPS60163245 A JP S60163245A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- recording medium
- dye
- information recording
- optical information
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
- G11B7/2472—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes cyanine
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
- G11B7/2475—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes merocyanine
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/256—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers improving adhesion between layers
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は特に光安定性および耐続出し回数を向上させた
光情報記録媒体に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention particularly relates to an optical information recording medium with improved photostability and durability against continuous printing.
従来、回転しているディスク状の情報記録媒体ICレー
ザ光を照射して情報の記録再生を行なう情報記録再生装
置が知られている。この種の情報記録装置に用いられる
情報記録媒体としては基板、金属反射膜および色素を含
む半透明着色層から構成されているものが知られている
。2. Description of the Related Art Conventionally, an information recording and reproducing apparatus is known that records and reproduces information by irradiating a rotating disc-shaped information recording medium with an IC laser beam. As an information recording medium used in this type of information recording device, one is known that is composed of a substrate, a metal reflective film, and a translucent colored layer containing a dye.
この記録媒体は色素を含む半透明着色層に入射するレー
ザ光が金属反射膜に達して反射されるようにして反射光
を検出し易いようにしたものであって、この際前記金属
反射膜は着色層のみでは不足する反射光量を補なうため
に設けられている。しかしながら、金属反射膜の存在は
情報記録媒体の構成を複雑にすると共に高コスト化の原
因となっている。そこで、反射率の高いブロンズ光沢の
ある有機色素単層膜を使用して上記欠点を除去すること
が提案されている。特に、記録膜として光吸収の大きい
シアニン色素を用いると、膜厚600X〜600人で金
属光沢(反射率20〜30チ)を示す光吸収反射膜が得
られ、レーザ記録可能で、反射読出が可能になる。特に
レーザ光源として波長750〜850nmの半導体レー
ザを用いると装置の小型化が可能になるという利点が得
られた。しかしながら、有機色素は一般に酸化を受けて
保存性が低下するという問題があった。In this recording medium, laser light incident on a semi-transparent colored layer containing a dye reaches a metal reflective film and is reflected so that the reflected light can be easily detected. It is provided to compensate for the amount of reflected light that is insufficient with the colored layer alone. However, the presence of the metal reflective film complicates the structure of the information recording medium and causes an increase in cost. Therefore, it has been proposed to eliminate the above-mentioned drawbacks by using an organic dye monolayer film with high reflectance and bronze luster. In particular, when a cyanine dye with high light absorption is used as a recording film, a light-absorbing and reflective film that exhibits metallic luster (reflectance of 20-30 inches) can be obtained with a film thickness of 600X to 600mm, and is capable of laser recording and reflective readout. It becomes possible. In particular, the use of a semiconductor laser with a wavelength of 750 to 850 nm as a laser light source has the advantage that the device can be made smaller. However, organic dyes generally suffer from oxidation, resulting in a decrease in storage stability.
本発明は上記問題に鑑みてなされたものであって、その
目的は高分解能、高記録密度および高感度化が期待され
る有機色素系記録層特にシアニンまたはメロシアニン色
素系記録層の保存性(光照射に対する安定性)を改良す
ることである。また、本発明の目的は高い記録密度とい
比を有するとともに保存性のすぐれた光情報記録媒体を
提供することである。The present invention has been made in view of the above problems, and its purpose is to improve the storage stability of organic dye-based recording layers, particularly cyanine or merocyanine dye-based recording layers, which are expected to have high resolution, high recording density, and high sensitivity. The objective is to improve the stability against irradiation. Further, an object of the present invention is to provide an optical information recording medium having a high recording density/total ratio and excellent storage stability.
上記目的を達成するために、本発明は後記の一般式(1
)で表わされる化合物を有機色素薄膜記録層および必要
に応じて設けられる下引ぎ層および保護層のうちの少な
くとも−っの層に含有させることにある。In order to achieve the above object, the present invention provides the following general formula (1
) is contained in at least one of the organic dye thin film recording layer and an optional undercoat layer and protective layer.
本発明において翔いられる化合物は、一般式〔式中、R
は水素または低級アルキル基を表わし、Xは酸アニオン
を表わし、mは0.1または2であり、Aはe(nは1
または2である)または0(ただしmが2の場合)を表
わしそして存在するすべての芳香核は低級アルキル基、
低級アルコキシ基、ハロゲンまたは水酸基によって置換
されていてもよい〕で表わされる。The compound used in the present invention has the general formula [wherein R
represents hydrogen or a lower alkyl group, X represents an acid anion, m is 0.1 or 2, A is e (n is 1
or 2) or 0 (where m is 2) and all aromatic nuclei present are lower alkyl groups,
may be substituted with a lower alkoxy group, halogen or hydroxyl group].
前記一般式(1)において酸アニオンを表わす汐の例と
してはへキサフルオ自砒酸イオン、ヘキサフルオロアン
チモン酸イオン、フッ化ホウ素酸イオン、過塩素酸イオ
ン、トリフルオロ酢酸イオン、過沃素酸イオンなどをあ
げることができる。また、一般式(1)の化合物の代表
例としては下記のA−Lの化合物が例示される。Examples of acid anions in the general formula (1) include hexafluoroarsenate ion, hexafluoroantimonate ion, fluoroborate ion, perchlorate ion, trifluoroacetate ion, periodate ion, etc. I can give it to you. Further, as representative examples of the compound of general formula (1), the following compounds A-L are exemplified.
< III C,l Q cI:ll!c。< III C,l Q cI:ll! c.
6国1−1 +−3’pd A
本発明に用いられる有機色素薄膜記録層はシアニン色素
またはメロシアニン色素を主成分とし、その他に他の色
素、化合物および結着剤などを含んでいてもよい。シア
ニン色素およびメロシアニン色素としては任意のものを
使用できるが、その代表例にはそれぞれ下記の一般式(
2)および(6)で表わされる化合物がある。6 Country 1-1 +-3'pd A The organic dye thin film recording layer used in the present invention has a cyanine dye or merocyanine dye as a main component, and may also contain other dyes, compounds, binders, etc. . Any cyanine dye and merocyanine dye can be used, but typical examples thereof include the following general formulas (
There are compounds represented by 2) and (6).
ただし、R1およびR2は同じかまたは異なっていても
よくそしてそれぞれアルキル基、ヒドロキシアルキル基
、アルコキシアルキル基、アラルキル基、カルボキシア
ルキル基、アルカリ金属陽イオンと結合したカルボキシ
アルキレート基、スルホアルキル基、スルホアルキル基
またはアルカリ金属陽イオンと結合したスルホネートア
ルキル基を表わし、zlおよびZ2は5負または6員の
複索環または5員または6員の複素環を含む縮合環を形
成することのできる原子団を表わし、tは1〜4の整数
を表わしそして又は酸アニオンを表わす。However, R1 and R2 may be the same or different, and each is an alkyl group, a hydroxyalkyl group, an alkoxyalkyl group, an aralkyl group, a carboxyalkyl group, a carboxyalkylate group bonded to an alkali metal cation, a sulfoalkyl group, Represents a sulfoalkyl group or a sulfonate alkyl group bonded to an alkali metal cation, and zl and Z2 are atoms capable of forming a fused ring containing a 5-negative or 6-membered double ring or a 5- or 6-membered heterocycle t represents an integer of 1 to 4 and/or represents an acid anion.
また、本発明における有機色素薄膜記録層に必要に応じ
て設けられる下引き層および保護層については、下引き
層は(a)接着性の向上、(b)水まだはガスなどのバ
リヤー、(C)記録層の保存安定性の向上および(d)
反射率の向上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、天然高分子、シリコーン、
液状ゴムなどの種々の物質を用いることができ、(b)
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5i02.、MgF2.5iO1Ti02、ZnO2
など。Regarding the undercoat layer and protective layer provided as necessary on the organic dye thin film recording layer in the present invention, the undercoat layer (a) improves adhesion, (b) serves as a barrier against water and gas, and ( C) Improving the storage stability of the recording layer and (d)
Used for purposes such as improving reflectance. For the purpose of (a), polymeric materials such as ionomer resins, polyamide resins, vinyl resins, natural polymers, silicones,
Various substances can be used, such as liquid rubber; (b)
For this purpose, inorganic compounds such as 5i02. , MgF2.5iO1Ti02, ZnO2
Such.
金属または半金料例えばZn、Cu、 S、 Ni、C
r。Metal or semimetal materials such as Zn, Cu, S, Ni, C
r.
Ge、 Se、 Cd、 Ag、 Atなどを用いるこ
とができ、(C)の目的に対しては上記(a)および(
b)について例示したような材料そして(d)の目的に
対しては金属例えばAg、Aノなどを用いることができ
る。また、保護層はキズ、ホコリ、汚れなどからの保n
および記録層の化学的安定性の向上を目的として設けら
れ、その材料としては下引き層と同じ材料を使用するこ
とができる。Ge, Se, Cd, Ag, At, etc. can be used, and for the purpose of (C), the above (a) and (
Materials such as those exemplified for b) and metals such as Ag, Al, etc. can be used for the purpose of (d). In addition, the protective layer protects from scratches, dust, dirt, etc.
It is provided for the purpose of improving the chemical stability of the recording layer, and the same material as the undercoat layer can be used as the material.
次に、図面について本発明の光情報記録媒体の構成例を
説明する。Next, a configuration example of the optical information recording medium of the present invention will be explained with reference to the drawings.
第1図に示すように、本発明の光情報記録媒体は基本的
には基板1上に上記一般式(1)の化合物を含む有機色
素薄膜記録層2を設けたものである。また、記録層は他
の層例えば反射層と積層してもよい。記録層の形成は蒸
着、塗布などの既知の手段によって行うことができ、塗
布法を用いる場合には有機溶媒例えばジクロルエタンに
溶解してスプレー、ローラーコーティング。As shown in FIG. 1, the optical information recording medium of the present invention basically comprises a substrate 1 and an organic dye thin film recording layer 2 containing the compound of general formula (1) above. Further, the recording layer may be laminated with other layers such as a reflective layer. The recording layer can be formed by known means such as vapor deposition and coating. When a coating method is used, it is dissolved in an organic solvent such as dichloroethane and sprayed or roller coated.
ディッピングおよびスピンニングなどの慣用のコーティ
ング法によって行なわれる。記録層の膜J’JId、1
ooX 〜1μm好t L<u200〜3000久が適
当である。This is done by conventional coating methods such as dipping and spinning. Recording layer film J'JId, 1
It is appropriate that ooX ~1 μm and t L<u200 to 3000 μm.
また、第2図ないし第4図に示したようにさらに下引き
層3および/または保護層4を設け、前記層の少なくと
も一つに上記一般式(1)の化合物を添加して本発明の
目的を達成することかできる。この場合記録層に前記化
合物を含有させでもあるいはさせなくてもよい。上記一
般式(1)の化合物の添加量は全固形分を基準として記
録層に対しては2〜60重量%好ましくは5〜40臂ト
重i1チ、下引き層または保護層に対しては2〜90重
tチ好ましくは10〜50重量%が適当である。また、
下引き層の膜厚は0.1〜60μm’l!fましくは0
.2〜10μtnの範囲がそして保護層の膜厚は0.1
μm以上好ましくは50μm以上が適当である。Furthermore, as shown in FIGS. 2 to 4, an undercoat layer 3 and/or a protective layer 4 are further provided, and the compound of the general formula (1) is added to at least one of the layers, thereby achieving the present invention. It is possible to achieve the goal. In this case, the recording layer may or may not contain the above compound. The amount of the compound of general formula (1) added is preferably 2 to 60% by weight for the recording layer based on the total solid content, preferably 5 to 40% by weight, and for the undercoat layer or protective layer. A suitable amount is 2 to 90% by weight, preferably 10 to 50% by weight. Also,
The thickness of the undercoat layer is 0.1 to 60 μm'l! Preferably 0
.. The range is 2 to 10 μtn, and the thickness of the protective layer is 0.1
A suitable thickness is at least μm, preferably at least 50 μm.
さらに、本発明による光情報記録媒体の別の構成として
は、第1図ないし第4図に示した同−r4成の2枚の記
録媒体(場合によりその1枚を基板のみとして)を用い
色素薄膜記録層を内側に配置して密封したいわゆるエア
ーサンドイッチ構造にしてもよいし、保護層を介して接
着したいわゆる密着サンドインチ構造(貼9合せ構造)
にしてもよい。Furthermore, as another configuration of the optical information recording medium according to the present invention, two recording media of the same -r4 configuration shown in FIGS. It may be a so-called air sandwich structure in which a thin film recording layer is placed inside and sealed, or a so-called close-contact sandwich structure (laminated 9-ply structure) in which a thin film recording layer is placed inside and sealed.
You can also do this.
本発明における基板は基板側から書込み記録を行なう場
合は使用レーザ1先に対して透明でなければならず、ま
た記録側から行なう場合は透明である必要はない。基板
としてはガラス、ポリカーボネート、ポリメチルメタク
リレートが通常使用されるがその他記録媒体に使用され
るものならどれでもよい。The substrate in the present invention must be transparent to the laser 1 used when writing and recording is performed from the substrate side, and does not need to be transparent when writing and recording is performed from the recording side. Glass, polycarbonate, and polymethyl methacrylate are commonly used as the substrate, but any other material used for recording media may be used.
以下に比較例と共に実施例を掲げて本発明をさらに説明
するが、これに限定されるものではない。The present invention will be further explained below with reference to Examples along with Comparative Examples, but the present invention is not limited thereto.
実施例 1
一般式
の色素および前掲例示化合物Aを重量比100:15で
1,2−ジクロルエタンに溶解し、これをポリメチルメ
タクリレート(以下、 rPMMAJと略記)基板上に
回転塗布して厚さ約500^の記録層を形成した。この
ようにして作製した記録媒体に波長790 nmの半導
体レーザ光を基板側よp記録周波数0.6875 MH
z、ビット長0.9 μmで記録再生し、そのスはクト
ル解析(スキャニングフィルター、バンド幅50 KH
z )を行なって、初期の反射率およびC/Nを測定し
た。次に、同じ記録媒体に54000ルツクスのタング
ステン光を50時間照射した後の反射率およびC/Nを
測定した。Example 1 The dye of the general formula and the above-mentioned Exemplary Compound A were dissolved in 1,2-dichloroethane at a weight ratio of 100:15, and this was spin-coated onto a polymethyl methacrylate (hereinafter abbreviated as rPMMAJ) substrate to a thickness of approximately A recording layer of 500^ was formed. A semiconductor laser beam with a wavelength of 790 nm was applied to the recording medium thus prepared from the substrate side at a recording frequency of 0.6875 MH.
Recording and playback were performed with a bit length of 0.9 μm and a vector analysis (scanning filter, bandwidth 50 KH).
z) to measure the initial reflectance and C/N. Next, the reflectance and C/N were measured after irradiating the same recording medium with 54,000 lux tungsten light for 50 hours.
実施例 2
実施例1に記載した色素および化合物Aの代シに一般式
%式%
の色素および前掲例示化合物Gを用いてその混合比を1
00 :30とした以外には実施例1と同様にして記録
媒体を作製しその評価を行なった。Example 2 In place of the dye and compound A described in Example 1, a dye of the general formula % and the above-mentioned exemplified compound G were used, and the mixing ratio was 1.
A recording medium was produced and evaluated in the same manner as in Example 1 except that the time was 00:30.
実施例 3
実施例1に記載した化合物Aの代りに化合物Cを用いた
以外には実施例1と同様にして記録媒体を作製しその評
価を行なった。Example 3 A recording medium was prepared and evaluated in the same manner as in Example 1 except that Compound C was used instead of Compound A described in Example 1.
実施例 4
実施例1に記載した色素および化合物Aの代りに一般式
の色素および化合物りを用いた以外には実施例1と同様
にして記録媒体を作製しその評価を行なった。Example 4 A recording medium was prepared and evaluated in the same manner as in Example 1, except that the dye and compound A of the general formula were used in place of the dye and compound A described in Example 1.
実施例 5
化合物りおよびポリカーボネートを重量比7:6で1,
2−ジクロルエタンに溶解したものをPMMA基板上に
塗布して厚さ0.2μmの下引き層を形成し、その上に
実施例4に記載したシアニン色素のみの記録層を設けて
記録媒体を作製しその評価を行なった。Example 5 Compound 1 and polycarbonate in a weight ratio of 7:6,
A 0.2-μm-thick undercoat layer was formed by coating a solution dissolved in 2-dichloroethane on a PMMA substrate, and a recording layer containing only the cyanine dye described in Example 4 was provided on top of the undercoat layer to produce a recording medium. We conducted an evaluation.
実施例 6
実施例1で形成した記録層の上に、化合物Aおよびポリ
アミド樹脂を重量比7:6でメタノールに溶解したもの
を塗布して厚さ1μmの保tφ層を設けて記録媒体を作
製しその評価を行なった。Example 6 On the recording layer formed in Example 1, compound A and polyamide resin dissolved in methanol at a weight ratio of 7:6 was coated to provide a 1 μm thick retaining tφ layer to produce a recording medium. We conducted an evaluation.
比較例 1
実施例1で用いた色素のみからなる記録層を形成した以
外には実施例1と同様にして記録媒体を作製しその評価
を行なった。Comparative Example 1 A recording medium was prepared and evaluated in the same manner as in Example 1, except that a recording layer consisting only of the dye used in Example 1 was formed.
比較例 2
実施例2で用いた色素のみからなる記録層を形成した以
外には実施例2と同様にして記録媒体を作製しその評価
を行なった。Comparative Example 2 A recording medium was prepared and evaluated in the same manner as in Example 2, except that a recording layer consisting only of the dye used in Example 2 was formed.
比較例 6
実施例4で用いた色素のみからなる記録層を形成した以
外には実施例4と同様にして記録媒体を作製しその評価
を行なった。Comparative Example 6 A recording medium was prepared and evaluated in the same manner as in Example 4, except that a recording layer consisting only of the dye used in Example 4 was formed.
上記実施例1〜6および比較例1〜3で作製した光情報
記録媒体の評価結果を以下の表にまとめて示す。The evaluation results of the optical information recording media produced in Examples 1 to 6 and Comparative Examples 1 to 3 are summarized in the table below.
上述のようにして構成された本発明の光情報記録媒体は
すぐれた光安定性と耐読出し回数を与える。The optical information recording medium of the present invention constructed as described above provides excellent optical stability and read resistance.
第1図ないし第4図は本発明の光情報記録媒体の構成を
示す断面図である。
1・・・基板、2・・・有機色素薄膜記録層、6・・・
下引き層、4・・・保a層。
特許出願人 株式会社 リ コ −
一、−J−一
第1図 第2図
第3図 第4園1 to 4 are cross-sectional views showing the structure of the optical information recording medium of the present invention. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Organic dye thin film recording layer, 6...
Undercoat layer, 4...A preservation layer. Patent applicant Rico Co., Ltd. -1, -J-1 Figure 1 Figure 2 Figure 3 Figure 4 Garden
Claims (1)
とする有機色素薄膜記録層を有し、且つ前記記録層およ
び必要に応じて設けられる下引き層および保護層のうち
の少なくとも一つの層に、一般式(1) 〔式中、Rは水素または低級アルキル基を表わし、Xは
酸アニオンを表わし、mは0.1またる)または=C=
(ただしmが2の場合)を−表わしそして存在するすべ
ての芳香核は低級アルキル基、低級アルコキシ基、ノ・
ロゲンまたは水酸基によって置換されていてもよい〕で
表わされる化合物が含有されていることを特徴とする、
光情報記録媒体。[Scope of Claims] A thin organic dye recording layer containing a cyanine dye or merocyanine dye as a main component on a substrate, and at least one of the recording layer and an optional undercoat layer and a protective layer. In two layers, the general formula (1) [wherein R represents hydrogen or a lower alkyl group, X represents an acid anion, and m spans 0.1] or =C=
(provided that m is 2) and all aromatic nuclei present are lower alkyl groups, lower alkoxy groups,
characterized by containing a compound represented by [optionally substituted with rogene or hydroxyl group]
Optical information recording medium.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59018222A JPH0626028B2 (en) | 1984-02-06 | 1984-02-06 | Optical information recording medium |
DE19853503995 DE3503995A1 (en) | 1984-02-06 | 1985-02-06 | OPTICAL INFORMATION RECORD CARRIER |
US06/698,701 US4656121A (en) | 1984-02-06 | 1985-02-06 | Optical information recording medium |
GB08503022A GB2155811B (en) | 1984-02-06 | 1985-02-06 | Optical information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59018222A JPH0626028B2 (en) | 1984-02-06 | 1984-02-06 | Optical information recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60163245A true JPS60163245A (en) | 1985-08-26 |
JPH0626028B2 JPH0626028B2 (en) | 1994-04-06 |
Family
ID=11965613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59018222A Expired - Lifetime JPH0626028B2 (en) | 1984-02-06 | 1984-02-06 | Optical information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0626028B2 (en) |
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JPS6250187A (en) * | 1985-08-29 | 1987-03-04 | Nippon Kayaku Co Ltd | Improvement of color fastness to light |
JPH02132656A (en) * | 1988-07-30 | 1990-05-22 | Taiyo Yuden Co Ltd | Optical information recording medium and optical information recording method using it |
JPH02147286A (en) * | 1988-08-29 | 1990-06-06 | Taiyo Yuden Co Ltd | Optical data recording medium |
JPH02243656A (en) * | 1988-11-28 | 1990-09-27 | Canon Inc | Infrared absorbing compound and optical recording medium using the same |
JPH0354744A (en) * | 1989-07-24 | 1991-03-08 | Taiyo Yuden Co Ltd | Optical information recording medium and optical information recording method using this medium |
JPH03230332A (en) * | 1990-02-05 | 1991-10-14 | Taiyo Yuden Co Ltd | Optical information recording medium and method for recording optical information thereon |
US5312714A (en) * | 1991-08-02 | 1994-05-17 | Canon Kabushiki Kaisha | Optical recording medium, process for producing recording medium, and information recording method |
US6146741A (en) * | 1997-03-14 | 2000-11-14 | Canon Kabushiki Kaisha | Information recording medium and production process thereof |
JP2009154349A (en) * | 2007-12-26 | 2009-07-16 | Japan Carlit Co Ltd:The | Coloring matter stabilizer, and optical information recording medium containing coloring matter stabilizer |
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JPS5489605A (en) * | 1977-09-29 | 1979-07-16 | Philips Nv | Information memory element |
JPS5786139A (en) * | 1980-09-25 | 1982-05-29 | Rca Corp | Optical recording medium |
JPS57195336A (en) * | 1981-05-26 | 1982-12-01 | Mitsui Toatsu Chem Inc | Recording and record reading method and recorded body |
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JPS5489605A (en) * | 1977-09-29 | 1979-07-16 | Philips Nv | Information memory element |
JPS5786139A (en) * | 1980-09-25 | 1982-05-29 | Rca Corp | Optical recording medium |
JPS57195336A (en) * | 1981-05-26 | 1982-12-01 | Mitsui Toatsu Chem Inc | Recording and record reading method and recorded body |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6250187A (en) * | 1985-08-29 | 1987-03-04 | Nippon Kayaku Co Ltd | Improvement of color fastness to light |
JPH0465796B2 (en) * | 1985-08-29 | 1992-10-21 | Nippon Kayaku Kk | |
JPH0375942B2 (en) * | 1988-07-30 | 1991-12-03 | Taiyo Yuden Kk | |
JPH02132656A (en) * | 1988-07-30 | 1990-05-22 | Taiyo Yuden Co Ltd | Optical information recording medium and optical information recording method using it |
JPH02147286A (en) * | 1988-08-29 | 1990-06-06 | Taiyo Yuden Co Ltd | Optical data recording medium |
JPH0442199B2 (en) * | 1988-08-29 | 1992-07-10 | Taiyo Yuden Kk | |
JPH02243656A (en) * | 1988-11-28 | 1990-09-27 | Canon Inc | Infrared absorbing compound and optical recording medium using the same |
JPH0354744A (en) * | 1989-07-24 | 1991-03-08 | Taiyo Yuden Co Ltd | Optical information recording medium and optical information recording method using this medium |
JPH0827992B2 (en) * | 1989-07-24 | 1996-03-21 | 太陽誘電株式会社 | Optical information recording medium and optical information recording method using the same |
JPH03230332A (en) * | 1990-02-05 | 1991-10-14 | Taiyo Yuden Co Ltd | Optical information recording medium and method for recording optical information thereon |
JP2530238B2 (en) * | 1990-02-05 | 1996-09-04 | 太陽誘電株式会社 | Optical information recording medium and optical information recording method on the optical information recording medium |
US5312714A (en) * | 1991-08-02 | 1994-05-17 | Canon Kabushiki Kaisha | Optical recording medium, process for producing recording medium, and information recording method |
US6146741A (en) * | 1997-03-14 | 2000-11-14 | Canon Kabushiki Kaisha | Information recording medium and production process thereof |
JP2009154349A (en) * | 2007-12-26 | 2009-07-16 | Japan Carlit Co Ltd:The | Coloring matter stabilizer, and optical information recording medium containing coloring matter stabilizer |
Also Published As
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JPH0626028B2 (en) | 1994-04-06 |
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