JPS60252346A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS60252346A
JPS60252346A JP59108441A JP10844184A JPS60252346A JP S60252346 A JPS60252346 A JP S60252346A JP 59108441 A JP59108441 A JP 59108441A JP 10844184 A JP10844184 A JP 10844184A JP S60252346 A JPS60252346 A JP S60252346A
Authority
JP
Japan
Prior art keywords
recording
recording layer
recording medium
layer
regeneration
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
Application number
JP59108441A
Other languages
Japanese (ja)
Inventor
Tsutomu Sato
勉 佐藤
Michiharu Abe
通治 安倍
Hideaki Oba
大庭 秀章
Yutaka Ueda
裕 上田
Masaaki Umehara
正彬 梅原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP59108441A priority Critical patent/JPS60252346A/en
Publication of JPS60252346A publication Critical patent/JPS60252346A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/243Record 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 inorganic materials only, e.g. ablative layers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/245Record 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 a polymeric component
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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
    • G11B7/247Record 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
    • G11B7/2472Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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
    • G11B7/248Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/253Record 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 substrates

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

PURPOSE:To enable recording and regeneration using long wavelength light, such as semiconductor laser beams, and to obtain a record superior in storage stability and recording density and low in deterioration of regeneration by providing a recording layer incorporated with the specific compd. CONSTITUTION:The recording layer 2 formed on a base plate 1 contains a compd. represented by the formula in which R1-R3 are each H, halogen, hydroxy, carboxy, alkyl, aryl, acyl, acyloxy, or amino substd. by alkyl or the like; X is an acid anion; and each of l and m is 0, 1, or 2. Such a recording layer 2 is formed by vapor deposition, sputtering, CVD, coating with its solvent soln., or the like methods. The use of such a compsn. for the recording layer 2 permits recording to be made with high sensitivity even by using long wavelength light, such as semiconductor laser beams, a well-shaped pit to be formed, a high S/N ratio to be secured, further, stability to heat and light to be enhanced, and a recording medium good in storage stability and small in deterioration of regeneration to be obtained.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は特定の化合物を含む記録層を有する光情報記録
媒体に関する。さらに詳しくは、レーザビームにより直
接記録し反射光の変化によって情報再生を行なう方法に
用いられる光情報記録媒体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an optical information recording medium having a recording layer containing a specific compound. More specifically, the present invention relates to an optical information recording medium used in a method of directly recording with a laser beam and reproducing information by changing reflected light.

〔従来技術〕[Prior art]

従来、回転しているディスク状の情報記録媒体にレーザ
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。そしてこの種の情報記録装置に用いら
れる情報記録媒体の記録層としては低融点金属または低
融点金属と誘電体を用いるものなどが提案されている。
2. Description of the Related Art Conventionally, information recording and reproducing apparatuses are known that record and reproduce information by irradiating a rotating disk-shaped information recording medium with a laser beam. As a recording layer of an information recording medium used in this type of information recording device, a recording layer using a low melting point metal or a low melting point metal and a dielectric material has been proposed.

しかし、これらは保存性が悪い、分解能が低い、記録密
度が低い、コスト高になるなどの欠点を有する。そこで
、最近になって比較的長波長の光で物性変化し得る有機
薄膜を記録層に用いることが提案されているが、一般に
長波長側に吸収特性をもつ有機化合物は熱および光に対
して安定性が低いなどの問題点があることがら必ずしも
記録特性上満足できる記録層が開発されていないのが現
状である。
However, these have drawbacks such as poor storage stability, low resolution, low recording density, and high cost. Therefore, it has recently been proposed to use organic thin films whose physical properties can change with relatively long wavelength light for the recording layer, but organic compounds that have absorption characteristics on the long wavelength side are generally resistant to heat and light. Currently, a recording layer with satisfactory recording properties has not been developed due to problems such as low stability.

〔目的〕〔the purpose〕

本発明は上記現状に鑑みてなされたものであって、その
目的は半導体レーザなどの長波長光による記録再生が可
能で保存性にすぐれかつ再生劣化が少く記録密度の高い
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-mentioned current situation, and its purpose is to provide an optical information recording medium that is capable of recording and reproducing using long wavelength light such as a semiconductor laser, has excellent storage stability, has little reproduction deterioration, and has a high recording density. It is to be.

〔構成〕〔composition〕

本発明者は上記目的を達成するために鋭意研究を行った
結果、下記一般式で示される化合物自体が安定な記録材
料として有用であることを見出し本発明の完成に至った
As a result of intensive research to achieve the above object, the present inventors discovered that the compound represented by the following general formula itself is useful as a stable recording material, leading to the completion of the present invention.

すなわち、本発明は下記一般式で示される化合物を含む
記録層を有する光情報記録媒体を提供することにある。
That is, an object of the present invention is to provide an optical information recording medium having a recording layer containing a compound represented by the following general formula.

一般式 ただし、R1ないしR3は同じかまたは異なっていても
よくそしてそれぞれは水素、ハロゲン)ヒドロキシ基、
カルボキシル基、置換もしくは未置換のアルキル、アリ
ール、アシル、アシルオキシ、アルコキシまたはアルケ
ニル基あるいは置換もしくは未置換のアルキル、アラル
キルまたはアルケニルにより置換さ、h、たアミノ基を
表わし、Xは酸アニオンを表わしそしてlおよびmは1
または2を表わす。
General formula: However, R1 to R3 may be the same or different, and each represents a hydrogen, halogen) hydroxy group,
a carboxyl group, a substituted or unsubstituted alkyl, aryl, acyl, acyloxy, alkoxy or alkenyl group or a substituted or unsubstituted alkyl, aralkyl or alkenyl group; h represents an amino group; X represents an acid anion; l and m are 1
or 2.

不発明の上記化合物の具体例を以下の表に示すが、本発
明はこれらのみに限定されるものではない。
Specific examples of the above-mentioned non-inventive compounds are shown in the table below, but the present invention is not limited thereto.

化合物 X R1R2R3 A C1○4 6−OHp−HH B ClO46−CA’ p−N(CHg)2Hc c
/ 6−N(CH!S)2 p−CI HD BF4 
Hp−CI H E I 6−CI Jl)−N(C4H9)2 HFC
E(5・C6H4・SC20−C1p−αM5 HG 
CA’04 (S70CH5p−Br HHI 6−C
6H3HH I (J○4 6−C6H4・N(CH3)2 p−N
(CH31z HJ SbF6.6−CI、7−C1p
−N(C2H5)2HK Br Ho−CII、p−C
JH L C1!04 H1)−N(C山)2 0CR3M 
CJ 6−CO−CH3T−I HN clIo4 6
−C6H4・cj HCH30CI Hp−OHH P I 6−OCH3り−N(C2H5) 2 HQ 
C16−C6H4・0CR5p−CI HRClO46
−C1p−○C2H5H 8cI(5−c6r−i4−SC3Hp−Co−CI(
5HT BF4 6−C6H4−N(a(3)2 p−
cz Hu cJO46−N(OH5) 2 0−α、
p−(JH本発明の光情報記録媒体は基本的には基板と
記録層とから構成されるものであるが、必要に応じてさ
らに下引層、保岐層などを設けることもできる。また、
記録層同士を内側にして2枚の記録媒体を対向させたい
わゆるエアーサンドインチ構造にすることも可能である
Compound X R1R2R3 A C1○4 6-OHp-HH B ClO46-CA' p-N(CHg)2Hc c
/ 6-N(CH!S)2 p-CI HD BF4
Hp-CI H E I 6-CI Jl)-N(C4H9)2 HFC
E(5・C6H4・SC20-C1p-αM5 HG
CA'04 (S70CH5p-Br HHI 6-C
6H3HH I (J○4 6-C6H4・N(CH3)2 p-N
(CH31z HJ SbF6.6-CI, 7-C1p
-N(C2H5)2HK Br Ho-CII, p-C
JH L C1!04 H1)-N(C mountain)2 0CR3M
CJ 6-CO-CH3T-I HN clIo4 6
-C6H4・cj HCH30CI Hp-OHH PI 6-OCH3ri-N(C2H5) 2 HQ
C16-C6H4・0CR5p-CI HRClO46
-C1p-○C2H5H 8cI(5-c6r-i4-SC3Hp-Co-CI(
5HT BF4 6-C6H4-N(a(3)2 p-
cz Hu cJO46-N(OH5) 2 0-α,
p-(JH) The optical information recording medium of the present invention basically consists of a substrate and a recording layer, but if necessary, an undercoat layer, a hoki layer, etc. can be further provided. ,
It is also possible to have a so-called air sand inch structure in which two recording media are placed facing each other with their recording layers facing each other.

本発明における記録層はレーザ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できる
ものであって、この記録層中には上記一般式の化合物が
含有されている必要がある。また、記録層の形成にあた
っては上記一般式の化合物を1種または2種以上の組合
せで用いてもよい。さらに、本発明の上記化合物は他の
染料例えばフタロシアニン系染料、テトラヒドロコリン
系染料、ジオキサジン系染料、トリフエッチアジン系染
料、フェナンスレン系染料、シアニン(メロシアニン)
系染料、アントラキノン(インダンスレン)系染料、キ
サンチン系染料、トリフェニルメタン系染料、クロコニ
ウム系染料、ビリリウム系染料、アズレン系染料などま
たは金属、金属化合物例えばIn、an、 Te、B1
.11%Be、 TeO2,8nOSA8、Cdなどと
混合分散あるいは積層の形態で用いることもできる。ま
た、本発明の上記化合物は高分子材料例えばアイオノマ
ー樹脂、ポリアミド系樹脂、ビニル系樹脂、天然高分子
、シリコーン、液状コムナどの種々の材料もしくはシラ
ンカップリング剤などの中に混合分散して用いてもよい
しあるいは特性改良の目的で安定剤(例えば、遷移金属
錯体)、分散剤、難燃剤、滑剤、帯電防止剤、界面活性
剤、可塑剤などと一緒に用いることもできる。
The recording layer in the present invention is capable of causing some optical change by irradiation with laser light and recording information based on the change, and the recording layer must contain a compound of the above general formula. Further, in forming the recording layer, one kind or a combination of two or more kinds of compounds of the above general formula may be used. Furthermore, the compound of the present invention can be used with other dyes such as phthalocyanine dyes, tetrahydrocholine dyes, dioxazine dyes, triphetchazizine dyes, phenanthrene dyes, cyanine (merocyanine), etc.
dyes, anthraquinone (indanthrene) dyes, xanthine dyes, triphenylmethane dyes, croconium dyes, biryllium dyes, azulene dyes, metals, metal compounds such as In, an, Te, B1
.. It can also be used in the form of a mixed dispersion or a stacked layer with 11% Be, TeO2, 8nOSA8, Cd, etc. Further, the above-mentioned compound of the present invention can be mixed and dispersed in various polymeric materials such as ionomer resins, polyamide resins, vinyl resins, natural polymers, silicones, liquid comunas, or silane coupling agents. Alternatively, it may be used together with stabilizers (eg, transition metal complexes), dispersants, flame retardants, lubricants, antistatic agents, surfactants, plasticizers, etc. for the purpose of improving properties.

次に、図面について本発明による光情報記録媒体の構成
を説明する。
Next, the structure of the optical information recording medium according to 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上に上記一般式の化合物を含む記録層2を設
けたものである。また、記録層は光反射層と光吸収層と
を任意の順序で組合せた2層構成とすることもできる。
As shown in FIG. 1, the optical information recording medium of the present invention basically comprises a substrate 1 and a recording layer 2 containing a compound of the above general formula. Further, the recording layer can also have a two-layer structure in which a light-reflecting layer and a light-absorbing layer are combined in any order.

記録層の形成は蒸着、スパッタリング、CVDまたは溶
液塗布などの通常の手段によって行うことができる。塗
布法を用いる場合には有機溶媒に溶解してスプレー、ロ
ーラーコーティング、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。有機
溶媒としては一般には、メタノール、エタノール、イソ
プロパツールなどのアルコール類、アセトン、メチルエ
チルケトン、シクロヘキサノンなどのケトン類、N、N
−ジメチルホルムアミド、N、N−ジメチルアセトアミ
ドなどのアミド類、ジメチルスルホキシドなどのスルホ
キシド類、テトラヒドロフラン、ジオキサン、エチレン
グリコールモノメチルエーテルなどのエーテル類、酢酸
メチル、酢酸エチルなどのエステル類、クロロホルム、
塩化メチレン、ジクロルエタン、四塩化炭素、トリクロ
ルエタンなどの脂肪族ハロゲン化炭化水素類あるいはベ
ンゼン、トルエン、キシレン、リグロイン、モノクロル
ベンゼン、ジクロルベンゼンなどの芳香族類などを用い
ることができる。記録層の膜厚は100X〜10μm好
ましくは2001〜2μmが適当である。
The recording layer can be formed by conventional means such as vapor deposition, sputtering, CVD or solution coating. When a coating method is used, it is dissolved in an organic solvent and applied by a conventional coating method such as spraying, roller coating, dipping, and spinning. Organic solvents generally include alcohols such as methanol, ethanol, and isopropanol; ketones such as acetone, methyl ethyl ketone, and cyclohexanone;
-Amides such as dimethylformamide and N,N-dimethylacetamide, sulfoxides such as dimethylsulfoxide, ethers such as tetrahydrofuran, dioxane, and ethylene glycol monomethyl ether, esters such as methyl acetate and ethyl acetate, chloroform,
Aliphatic halogenated hydrocarbons such as methylene chloride, dichloroethane, carbon tetrachloride, trichloroethane, etc. or aromatics such as benzene, toluene, xylene, ligroin, monochlorobenzene, dichlorobenzene, etc. can be used. The appropriate thickness of the recording layer is 100X to 10 μm, preferably 2001 to 2 μm.

基板1け基板側から書込み記録を行なう場合は使用レー
ザ光に対して透明でなければならず、また記録N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、ポリエステル、ポリアミド、ポリオレフィン、ポリ
カーボネート、エポキシ、ポリイミド、ポリメチルメタ
クリレートなどのプラスチック、金属、セラミックスが
通常使用されるがその他記録ρIL体に使用されるもの
ならどれでもよい。
When writing and recording is performed from the substrate 1 side, it must be transparent to the laser beam used, and when writing is performed from the recording N side, it does not need to be transparent. As the substrate, glass, plastics such as polyester, polyamide, polyolefin, polycarbonate, epoxy, polyimide, and polymethyl methacrylate, metals, and ceramics are usually used, but any other materials used for recording ρIL bodies may be used.

また、第2図ないし第4図に示すように第1図の構成の
ものにさらに下引層3および/または保訛層4を設けた
構成とすることもでとる。
Furthermore, as shown in FIGS. 2 to 4, the structure shown in FIG. 1 may be further provided with an undercoat layer 3 and/or an accent protection layer 4.

この際、下引層および/または保篩層中には本発明の上
記一般式で表わされる化合物が含有されていてもよい。
At this time, the undercoat layer and/or the sieve layer may contain a compound represented by the above general formula of the present invention.

下引層5は(a)接着性の向上、(b>水またはガスな
どのバリヤー、(c)記録層の保存安定性の向上、(、
i)反射率の向上、(θ)溶剤からの基板の保護および
(f)プレグルーブの形成などを目的として使用される
。(a)の目的に対しては前記高分子材料およびシラン
カップリング剤などの種々の物質を用いることができ、
(b)、(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5102、MgF2.5iO1T10
2、ZnO1TiN、 8iNなど、金属または半金属
例えばZn%Cu、8.Ni、Cr、 Ge、 Be。
The subbing layer 5 has the following functions: (a) improvement of adhesiveness, (b> barrier to water or gas, etc.), (c) improvement of storage stability of the recording layer, (
It is used for the purposes of i) improving reflectance, (θ) protecting the substrate from solvents, and (f) forming pregrooves. For the purpose of (a), various substances such as the above-mentioned polymer materials and silane coupling agents can be used,
For the purposes of (b) and (C), inorganic compounds such as 5102, MgF2.5iO1T10 may be used in addition to the above polymer materials.
2. Metals or metalloids such as ZnO1TiN, 8iN, etc., such as Zn%Cu, 8. Ni, Cr, Ge, Be.

Ct5. Ag、 Atなどを用いることができる。(
d)の目的に対しては金属例えばAt、 Agなとまた
は金属光沢を有する有機薄膜例えばメタン染料、キサン
チン系染料などを用いることができそして(e)、(f
)の目的に対しては紫外線硬化樹脂、熱硬化性樹脂、熱
可塑性樹脂などを用いることができる。
Ct5. Ag, At, etc. can be used. (
For the purpose of d), metals such as At or Ag or organic thin films with metallic luster such as methane dyes, xanthine dyes, etc. can be used.
), ultraviolet curing resins, thermosetting resins, thermoplastic resins, etc. can be used.

下引層の膜厚は0.1〜30μm好ましくは0.2〜1
0μmが適当である。また、保護層4はキズ、ホコリ、
汚れなどからの保護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。保腫層の膜厚は0
.1μm以上好ましくは50μm以上が適当である。
The thickness of the subbing layer is 0.1 to 30 μm, preferably 0.2 to 1 μm.
0 μm is appropriate. In addition, the protective layer 4 is free from scratches, dust,
This layer is provided for the purpose of protecting the recording layer from dirt and improving the chemical stability of the recording layer, and the same material as that of the undercoat layer can be used as its material. The thickness of the tumor layer is 0
.. A suitable thickness is 1 μm or more, preferably 50 μm or more.

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図に示した同一構成の2枚の記録
媒体(場合によりその1枚を基板のみとして)を用い記
録層2を内側に配置して密封したいわゆるエアーサンド
インチ構造にしてもよいし、保護M4を介して接着した
いわゆる密着サンドインチ補遺(貼り合せ構造)にして
もよい。
Furthermore, as another configuration of the optical information recording medium according to the present invention, two recording media having the same configuration as shown in FIGS. It may be a so-called air-sand inch structure in which it is placed inside and sealed, or it may be a so-called close-fitting sandwich structure in which it is adhered via a protective M4 (bonded structure).

なお、レーザ光源として波長750〜850 nmの半
導体レーザを用いると装置の小型化が可能となる。
Note that if a semiconductor laser with a wavelength of 750 to 850 nm is used as the laser light source, the device can be made smaller.

〔実施例〕〔Example〕

以下に実施例を掲げて本発明をさらに説明するが、本発
明は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, but the present invention is not limited thereto.

実施例 1 厚さ1.2 mのポリメチルメタクリレート(以下、r
 PMMA Jと略記)基板上に前記化合物例Aの1.
2−ジクロルエタン溶液を回転塗布して厚さ700λの
記録層を形成し記録媒体を作製した。
Example 1 Polymethyl methacrylate (hereinafter referred to as r) with a thickness of 1.2 m
(abbreviated as PMMA J) 1. of Compound Example A above on the substrate.
A recording layer having a thickness of 700λ was formed by spin coating a 2-dichloroethane solution to produce a recording medium.

実施例 2 実施例1において前記化合物例Fを用いて記録層を形成
した以外には実施例1と同様にして記録媒体を作製した
Example 2 A recording medium was produced in the same manner as in Example 1 except that the recording layer was formed using Compound Example F.

実施例 3 実施例1で形成した記録層の上にさらに厚さ100λの
銀蒸着膜を設けて記録媒体を作製した。
Example 3 A silver vapor deposition film having a thickness of 100λ was further provided on the recording layer formed in Example 1 to produce a recording medium.

実施例 4 厚さ1.2 wのPMMA基板上に前記化合物例りを真
空蒸着して厚さ650久の記録層を形成し記録媒体を作
製した。
Example 4 A recording medium was prepared by vacuum-depositing the above compound onto a PMMA substrate having a thickness of 1.2 W to form a recording layer having a thickness of 650 W.

実施例 5 厚さ1.2wのPMMA基板上に前記化合物例工と下記
一般式(1)の化合物とを1:1の重量比で混合した1
、2−ジクロルエタン溶液を回転塗布して厚さ650′
Aの記録層を形成し記録媒体を作製した。
Example 5 On a PMMA substrate with a thickness of 1.2 w, the above compound example and the compound of the following general formula (1) were mixed at a weight ratio of 1:1.
, 2-dichloroethane solution was spin-coated to a thickness of 650'.
A recording layer of A was formed to produce a recording medium.

実施例 6 厚さ1.2 wnのPMMA基板上に前記化合物例Hと
下記一般式(It)の化合物とを7:3の重量比で混合
した1、2−ジクロルエタン溶液を回転塗布して厚さ5
ooXの記録層を設けさらにその上に下記一般式Qll
)の化合物を厚さ150Aで真空蒸着して記録媒体を作
製した。
Example 6 On a PMMA substrate with a thickness of 1.2 wn, a 1,2-dichloroethane solution containing the compound example H and a compound of the following general formula (It) mixed at a weight ratio of 7:3 was spin-coated to give a thickness of 1.2 wn. Sa5
A recording layer of ooX is provided on top of which the following general formula Qll is formed.
) was vacuum-deposited to a thickness of 150 Å to produce a recording medium.

実施例 7 厚さ1,2−のアMMA基板上に厚さ150スのTo蒸
着膜を設けさらにその上に前記化合物例Fの1.2−ジ
クロルエタン溶液を回転塗布し厚さ500又の記録層を
形成し記録媒体を作製した。
Example 7 A To evaporated film with a thickness of 150 mm was provided on an AMMA substrate with a thickness of 1,2 mm, and a 1,2-dichloroethane solution of the above compound example F was spin-coated on the film to a thickness of 500 mm. A layer was formed to produce a recording medium.

上記実施例で作製した記録媒体に波長790ntnの半
導体レーザ光を用いて基板側より、書込みパワー2.2
5tnW、記鍔周波数[1,5MH2,線速1,5m/
s e cで情報を書込み再生し、そのスペクトル解析
(スキャニングフィルター、バンド幅30KH2)を行
なっていを測定した。次に、同じ記録媒体に54000
ルツクスのタングステン元を50時間照射した彼のCハ
を測定した。その結果を以下の表にまとめて示す。
A write power of 2.2 was applied to the recording medium manufactured in the above example from the substrate side using a semiconductor laser beam with a wavelength of 790 ntn.
5tnW, recorded tsuba frequency [1.5MH2, linear speed 1.5m/
Information was written and reproduced using sec, and its spectrum analysis (scanning filter, bandwidth 30KH2) was performed to measure the spectrum. Next, 54000 on the same recording medium
His C was measured after 50 hours of irradiation with Lux's tungsten source. The results are summarized in the table below.

実施例1 49 46 2 51 49 3 53 52 4 50 49 5 56 、 56 6 54 54 7 47 46 〔効果〕 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
以下の効果を奏することができる。
Example 1 49 46 2 51 49 3 53 52 4 50 49 5 56 , 56 6 54 54 7 47 46 [Effects] The optical information recording medium of the present invention configured as described above has the following effects. can.

1、 長波長レーザ(半導体レーザ)を用いても高感度
に記録できる。
1. Highly sensitive recording is possible even with a long wavelength laser (semiconductor laser).

2、 良好な形状でビットを形成することが出来高いC
/Nが得られる。
2. C that allows you to form a bit with a good shape.
/N is obtained.

3、 熱および光に対する安定性が高く、保存性に優れ
、再生劣化の少い記録体が得られる。
3. A recording medium with high stability against heat and light, excellent storage stability, and little reproduction deterioration can be obtained.

【図面の簡単な説明】[Brief explanation of drawings]

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・一基板、2・・記録層、3・・・下引き層、4・・
・保護層。 特許出願人 株式会社 リ コ − 、、、、i 代 理 人 弁理士 山 下 白 、。
1 to 4 are cross-sectional views showing the structure of the optical information recording medium of the present invention. 1. One substrate, 2. Recording layer, 3. Undercoat layer, 4.
・Protective layer. Patent applicant Ricoh Co., Ltd. Agent Patent attorney Haku Yamashita.

Claims (1)

【特許請求の範囲】 一般式 (式中、R1ないしR3は同じかまたは異なっていても
よくそしてそれぞれは水素、)・ロゲン、ヒドロキシ基
、カルボキシル基、置換もしくは未置換のアルキル、ア
リール、アシル、アシルオキシ、アルコキシまたはアル
ケニル基あるいは置換もしくは未置換のアルキル、アラ
ルキルまたはアルケニルにより置換されたアミノ基を表
わし、Xは酸アニオンを表わしそして!およびmは1ま
たは2を表わ丁)の化合物を含む記録層を有することを
特徴とする、光情報記録媒体。
[Claims] General formula (wherein R1 to R3 may be the same or different and each is hydrogen) - rogene, hydroxy group, carboxyl group, substituted or unsubstituted alkyl, aryl, acyl, represents an acyloxy, alkoxy or alkenyl group or an amino group substituted by substituted or unsubstituted alkyl, aralkyl or alkenyl, X represents an acid anion and! and m represents 1 or 2).
JP59108441A 1984-05-30 1984-05-30 Optical information recording medium Pending JPS60252346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59108441A JPS60252346A (en) 1984-05-30 1984-05-30 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59108441A JPS60252346A (en) 1984-05-30 1984-05-30 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS60252346A true JPS60252346A (en) 1985-12-13

Family

ID=14484850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59108441A Pending JPS60252346A (en) 1984-05-30 1984-05-30 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS60252346A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3606927A4 (en) * 2017-04-03 2021-03-17 Massachusetts Institute of Technology Near and shortwave infrared polymethine dyes
US11292778B2 (en) 2017-06-05 2022-04-05 The Regents Of The University Of California Heterocyclyl polymethine IR chromophores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3606927A4 (en) * 2017-04-03 2021-03-17 Massachusetts Institute of Technology Near and shortwave infrared polymethine dyes
US11292778B2 (en) 2017-06-05 2022-04-05 The Regents Of The University Of California Heterocyclyl polymethine IR chromophores

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