JPS59217241A - Optical information recording and storing medium - Google Patents

Optical information recording and storing medium

Info

Publication number
JPS59217241A
JPS59217241A JP58089169A JP8916983A JPS59217241A JP S59217241 A JPS59217241 A JP S59217241A JP 58089169 A JP58089169 A JP 58089169A JP 8916983 A JP8916983 A JP 8916983A JP S59217241 A JPS59217241 A JP S59217241A
Authority
JP
Japan
Prior art keywords
base plate
plastic base
insoluble
film
hydrocarbon halide
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
Application number
JP58089169A
Other languages
Japanese (ja)
Other versions
JPH0619858B2 (en
Inventor
Michiharu Abe
通治 安倍
Hideaki Oba
大庭　秀章
Tsutomu Sato
勉 佐藤
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 JP58089169A priority Critical patent/JPH0619858B2/en
Publication of JPS59217241A publication Critical patent/JPS59217241A/en
Publication of JPH0619858B2 publication Critical patent/JPH0619858B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/252—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
    • G11B7/257—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 having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording 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
    • G11B7/242—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
    • G11B7/252—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
    • G11B7/253—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 substrates
    • G11B7/2533—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 substrates comprising resins
    • 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
    • G11B7/253—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 substrates
    • G11B7/2533—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 substrates comprising resins
    • G11B7/2534—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 substrates comprising resins polycarbonates [PC]
    • 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
    • G11B7/253—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 substrates
    • G11B7/2533—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 substrates comprising resins
    • G11B7/2535—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 substrates comprising resins polyesters, e.g. PET, PETG or PEN
    • 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
    • G11B7/253—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 substrates
    • G11B7/2533—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 substrates comprising resins
    • G11B7/2536—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 substrates comprising resins polystyrene [PS]

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To provide an optical information recording and storing medium which has high reflectivity (20-30%) and high light absorptivity and is suitable for a reflection type by forming said medium into the construction having a thin film of a cyanine dye on a plastic base plate subjected to a treatment for making the base plate insoluble in a hydrocarbon halide solvent. CONSTITUTION:A storing medium consists of a plastic base plate 1 on which an undercoating layer 2 insoluble in hydrocarbon halide is provided and a thin film 3 of a cyanine dye is formed thereon. A plate of acrylic, polycarbonate, polystyrene, polyester or PVC is used for the plastic base plate. The treatment to make the plastic base plate insoluble in a hydrocarbon halide solvent is accomplished by any method of providing the film of a resin or glassy material insoluble in hydrocarbon halide on the plastic base plate or providing an inorg. transparent film on the plastic base plate or crosslinking the surface of the plastic base plate by radiation or electron ray irradiation to make the same insoluble in the solvent or using the transparent plastic base plate insoluble in hydrocarbon halide.

Description

【発明の詳細な説明】 技術分野 本発明はプラスチック基板上にシアニン系色素薄膜を有
する光学的情報記憶媒体に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an optical information storage medium having a thin cyanine dye film on a plastic substrate.

さらに硅しくは、本発明はレーザビームを集光して照射
することにより記録層に情報を記憶するための１＃報記
憶媒体に関する。More specifically, the present invention relates to a 1# information storage medium for storing information in a recording layer by condensing and irradiating a laser beam.

従来技術 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養生装置
が知られでいる。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４−ン苫
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 curing device is known that records and reproduces information by irradiating a rotating disc-shaped information recording medium with a 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 with a dark color.

この記録媒体は色素を含む半透明加色ｊ・誇に入射する
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
射光を枳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７１巳ｊ曽のみでは不足する反射光量を袖
なうために設けられている。しかしながら、金属反射族
の仔在は情報記録媒体の構成を複雑にすると共に市コス
ト化の原因となっている。そこで、本発明者等は反射率
の高いブロンズ光沢のある上様色素単層膜を使用して上
記欠点を除去することン先に提案した。特に、記録膜と
して光吸収の大きいシアニン糸色素を用いると、膜厚６
ｏｏｎ、〜６００久で金属光沢（反射率２０〜６０％）
を示す元吸収反対膜が得られ、レーザ記録可能で、反射
読出が可能になる。この際、特にレーザ光分として波長
７５０〜８５０　ｎｍの半導体レーザを用いると装置の
小型化が可能になるという利点が得られる。This recording medium is designed so that the laser light incident on the translucent colored film containing the pigment reaches the metal reflective film and is reflected so that the reflected light can be easily extracted. The reflective film is provided in order to compensate for the amount of reflected light that is insufficient with only the 71mm. However, the presence of metal reflective groups complicates the structure of the information recording medium and causes an increase in costs. Therefore, the present inventors previously proposed a method to eliminate the above-mentioned drawbacks by using a single-layer dye film having a high reflectance and a bronze luster. In particular, when a cyanine thread dye with high light absorption is used as the recording film, the film thickness is 6.
oon, ~600 years with metallic luster (reflectance 20-60%)
An originally absorbing and anti-absorbing film is obtained that exhibits , is laser recordable, and reflective readout is possible. In this case, in particular, if a semiconductor laser having a wavelength of 750 to 850 nm is used as the laser beam, there is an advantage that the device can be made smaller.

ところが、プラスチック基板上にシアニン系色素薄膜を
スピンニングなどのコーティング法によって形成させる
際にシアニン系色素に対する溶媒としてプラスチックに
溶解性の高いジクロルエタンなどのハロゲン化炭化水素
かしはしは用いられることから塗布時にプラスチック基
板までも溶解してしまうという問題があった。塗布時に
プラスチック基板を少しでも溶解すると色素膜の反射率
が大きくならずひいては上述したシアニン系色素薄膜の
利点が損なわれることになる。だからといって、透明基
板としてガラスを使用すれば溶媒に対する溶解性の問題
は解消されるが比重が大きいため記録媒体全体の重量が
増加し取扱いに不便でありまた基板の破損の危険性が犬
きくなるという問題かある。However, when a thin film of cyanine dye is formed on a plastic substrate by a coating method such as spinning, halogenated hydrocarbons such as dichloroethane, which are highly soluble in plastic, are used as a solvent for the cyanine dye. There was a problem in that even the plastic substrate was dissolved during coating. If the plastic substrate is even slightly dissolved during coating, the reflectance of the dye film will not increase, and the advantages of the cyanine dye thin film described above will be lost. However, if glass is used as a transparent substrate, the problem of solubility in solvents can be solved, but the high specific gravity increases the weight of the entire recording medium, making it inconvenient to handle and increasing the risk of damage to the substrate. There's a problem.

目　　　０勺 本発明は上記１ｔｊＪ題に鈎みてなされたものであって
、その主な目的は反射率（２０〜６０カ）が島くしかも
ブ０吸収率の大き゛い反射１に舶した元学的状報記憶媒
体を提供することである。The present invention was made in light of the above-mentioned problem, and its main purpose is to develop a reflector that has a small reflectance (20 to 60) and a large absorption coefficient. The purpose of the present invention is to provide a target information storage medium.

また、本発明の別の目的はハロゲン化炭化水素に約して
不溶化されたプラスチック基板を提供することである。Another object of the present invention is to provide a plastic substrate that is insolubilized in halogenated hydrocarbons.

さらに、本発明の他の目的は反射率の筒いシアニン系色
素塗布膜をプラスチック基板上に杉成う−る技術を提供
することである。Furthermore, another object of the present invention is to provide a technique for depositing a highly reflective cyanine dye coating film on a plastic substrate.

構　成 上記目的を達成するために、本発明はプラスチックをハ
ロゲン化炭化水素溶媒に対して不溶化処理しそしてこの
処理したプラスチックを記憶媒体の基板に使用すること
にある。Structure In order to achieve the above object, the present invention is to treat a plastic to be insolubilized in a halogenated hydrocarbon solvent, and to use the treated plastic as a substrate of a storage medium.

不発明によれば、ハロゲン化炭化水素溶媒に対して不溶
化処理を施したプラスチック基板上にシアニン系色素薄
膜を有する光学的情報記憶媒体が提供される。According to the present invention, there is provided an optical information storage medium having a cyanine dye thin film on a plastic substrate that has been treated to be insolubilized in a halogenated hydrocarbon solvent.

本発明はシアニン系色素は一般にジクロルエタン、ジク
ロルメタンなどのハロゲン化炭化水素によく浩け、この
溶媒を用いてガラス基板に塗布すると塗布膜の均一性が
良くなり反射率２０俤〜６０チの光反射吸収膜が得られ
るがハロゲン化炭化水素を溶媒としてシアニン系色素を
プラスチック基板に塗布すると、通報のアクリル板、ポ
リカーボネート板を溶解するためヂ、色素と基板樹脂が
混合しシアニン色素の特徴である高い反射率（２０％〜
６５チ）の膜が得られないという知見にもとづいている
。それ故、本発明はプラスチック基板をハロゲン化炭化
水素溶媒に対して不溶化させて使用するものであるが、
この不溶化は例えば （ａ）　　ハロゲン化炭化水素に不溶な樹脂もり、　＜
はガラスηの膜をプラスチック基板上に設けること、 （ｂ）　　無機透明膜をプラスチック基板上に設けるこ
と、 （Ｃ）放射線もしくはｔ子線照射によりプラスチック基
板表面を装輪させ、溶剤率り化処理を行なうことおよび （ｄ）　　ハロゲン化炭化水素に不溶な透ψＪプラスチ
ック基板を用いること などのいずれかの方法によって達成される。したがって
、本発明で用いられる「ハロゲン化炭化水素溶媒に対し
て不溶化処理を施したプラスチック基板」なる語は広い
意味を有し、プラスチック基板を直接不溶化処理したも
ののみならずプラスチック基板上にノ・ロゲン化炭化水
素不溶性膜などを設けたものをも含むことを理解すべき
である。In the present invention, cyanine dyes are generally well absorbed by halogenated hydrocarbons such as dichloroethane and dichloromethane, and when applied to a glass substrate using this solvent, the uniformity of the coating film is improved and light reflection with a reflectance of 20 to 60 cm is achieved. An absorbing film can be obtained, but when cyanine dye is applied to a plastic substrate using a halogenated hydrocarbon as a solvent, it dissolves the reported acrylic board or polycarbonate board, so the dye and substrate resin mix, resulting in a high Reflectance (20%~
This is based on the knowledge that a film of 65 cm) cannot be obtained. Therefore, although the present invention uses a plastic substrate made insoluble in a halogenated hydrocarbon solvent,
This insolubilization can be achieved by, for example, (a) a resin that is insoluble in halogenated hydrocarbons;
(b) providing an inorganic transparent film on the plastic substrate; (C) coating the surface of the plastic substrate with radiation or t-son beam irradiation, and subjecting it to a solvent-containing treatment. and (d) using a transparent ψJ plastic substrate that is insoluble in halogenated hydrocarbons. Therefore, the term "plastic substrate treated to make it insolubilized in a halogenated hydrocarbon solvent" used in the present invention has a wide meaning, and includes not only plastic substrates directly treated to make it insolubilized, but also plastic substrates that have been made insoluble in halogenated hydrocarbon solvents. It should be understood that it also includes those provided with a logenated hydrocarbon insoluble membrane or the like.

本発明におけるプラスチック基板としては、アクリル、
ポリカーボネート、ポリスチレン、ポリエステル、ポリ
塩化ビニルなどの板が用も・られるが、特に好ましいの
はアクリル根、ポリカーボネート板である。As the plastic substrate in the present invention, acrylic,
Boards made of polycarbonate, polystyrene, polyester, polyvinyl chloride, etc. can also be used, but acrylic and polycarbonate boards are particularly preferred.

また、本発明において使用されるシアニン系色素は通常
ハロゲン化銀の分光増感色素として知られているもので
ある。かかる色素に憾一般に、ｆＩｌえば下記文献に記
載されているシアニン色素が包含される。米国特許第１
，８４６，３０１号および同第１．８４６．３０２号、
同第１，９４２，８５４号、同第１．９９０，５０７号
、同第２，１１２，１４０号、同第２，１６５，３３８
号、同第２，４９５，７４７号、同第２，７３９，９６
４号、同第２．４９！１，７４８号、同第２，５０５，
７７６号、同第２，５１９，００１号、同第２，６６６
，７６１号、同第２，７３４，９００号、同第２，７３
９，１４９号　および英国特許第４５Ｌ］、９５８号な
らびに米国特許第３．６９０，８９１号明細書。The cyanine dye used in the present invention is generally known as a silver halide spectral sensitizing dye. Such dyes generally include the cyanine dyes described in the following literature. US Patent No. 1
, No. 846,301 and No. 1.846.302,
No. 1,942,854, No. 1,990,507, No. 2,112,140, No. 2,165,338
No. 2,495,747, No. 2,739,96
No. 4, No. 2.49!1,748, No. 2,505,
No. 776, No. 2,519,001, No. 2,666
, No. 761, No. 2,734,900, No. 2,73
No. 9,149 and British Patent No. 45L], '958 and US Patent No. 3,690,891.

一般に、本発明におけるシアニン系色素薄膜はプラスチ
ック基板としてハロゲン化炭化水素溶媒に対して不溶化
処理を施したものを使用しこの基板にシアニン系色素を
ハロゲン化灰化水素溶媒に溶解した溶液を塗布すること
により形成することができる。ハロゲン化炭化水素とし
ては例えばメチレンクロライド、トリクロルエチレン、
パークロルエチレン、ジクロロメタン、ジクロロエタン
などを使用できるが、ジクロロメタンおよびジクロロエ
タンが特に好ましい。Generally, the cyanine-based dye thin film in the present invention uses a plastic substrate that has been subjected to insolubilization treatment in a halogenated hydrocarbon solvent, and a solution of the cyanine-based dye dissolved in a halogenated hydrogen ash solvent is applied to this substrate. It can be formed by Examples of halogenated hydrocarbons include methylene chloride, trichloroethylene,
Perchlorethylene, dichloromethane, dichloroethane and the like can be used, with dichloromethane and dichloroethane being particularly preferred.

塗布はスプレー、ローラーコーティング、ディッピング
およびスピン亘ングなどの慣用のコーディング法によっ
て行なわれる。Application is carried out by conventional coating methods such as spraying, roller coating, dipping and spinning.

次に、本発明の光学的情報記憶媒体の構成例および情味
の記録再生法を図回について説明すると、図示のように
本発明の記憶媒体はプラスチック基板１にハロゲン化炭
化水素に不浴な下引層２を設けこの上にシアニン系色素
薄膜６を形成させたものである。この情報記憶媒体に集
光するレーザビーム４を照射して情報を記録しまた反射
光を検出することにより情報を拘止ずることができる。Next, an example of the structure of the optical information storage medium of the present invention and a recording/reproducing method of the present invention will be explained with reference to the figure. A subbing layer 2 is provided, and a cyanine dye thin film 6 is formed thereon. Information can be captured by irradiating the information storage medium with a focused laser beam 4 to record information and detecting the reflected light.

図示したｅ）成のものは本発明の一例であってプラスチ
ック基板としてはプラスチック基板をハロゲン化炭化水
素に対して直接不溶化処理したものを使用できることは
いうまでもない。また、上述した本発明の構成に加え下
引層に案内溝を形成したり、シアニン系色素薄膜を保護
するための保護層を設けたりあるいはいわゆるエアーザ
ンドイッチ構造にすることもできる。The illustrated structure e) is an example of the present invention, and it goes without saying that a plastic substrate directly insolubilized with halogenated hydrocarbons can be used as the plastic substrate. In addition to the above-described structure of the present invention, guide grooves may be formed in the undercoat layer, a protective layer may be provided to protect the cyanine dye thin film, or a so-called air-and-switch structure may be provided.

実施例 以下に比較例とともに実施例をル１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。実施例お
よび比較例においてはシアニン系色素として・以下、の
構造式 で表わされる日本感元色素研死所の製品（ＮＫ２０１４
）を用いそしてシアニン色素の溶恕としてジクロロエタ
ンを用いてその結果を検討した。EXAMPLES The present invention will be further explained by referring to examples as well as comparative examples, but the present invention is not limited thereto. In the Examples and Comparative Examples, the cyanine dye was a product of Nippon Kangen Shiki Kensho (NK2014) represented by the following structural formula.
) and the results were investigated using dichloroethane as the solubilizer for the cyanine dye.

この例の４−Ｈ報記憶媒体は上記シアニン色素をジクロ
ロエタンに溶解した塗布溶液（１１ｆ％）を回転塗布機
によって不溶化処理板上に約５００Ｘの厚さで塗布し乾
燥することによって作製した。The 4-H information storage medium of this example was prepared by applying a coating solution (11f%) in which the above cyanine dye was dissolved in dichloroethane onto an insolubilized plate to a thickness of about 500× using a spin coater and drying.

情報記憶媒体についての特性は日本分九山３製ＵＶ１Ｄ
Ｔ’５Ｃ−６１０型可視紫外分元１１度計によって測定
した。The characteristics of the information storage medium are UV1D manufactured by Nippon Bunkuzan 3.
It was measured using a T'5C-610 model visible and ultraviolet 11 degree meter.

比較例　　青板ガラス　　　なし　　　　　６０　　１
０イトＬ） 効果 本発明によれば、軽量で安価なプラスチック基板を用い
てもシアニン色素の浴液塗布により反射率（２０〜３０
％）が高く、しかも光吸収率の大きい、反射部に適した
光学的情報記憶媒体を得ることができる。Comparative example Blue plate glass None 60 1
According to the present invention, even if a lightweight and inexpensive plastic substrate is used, the reflectance (20 to 30
It is possible to obtain an optical information storage medium suitable for a reflective portion, which has a high light absorption rate (%) and a high light absorption rate.

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

図は本発明の光学的情報記憶媒体の構成例を示す模式図
である。 １・・・プラスチック基板、２・・・ハロゲン化炭化水
素に不溶な下引層、６・・・シアニン系色素薄膜、４・
・・レーザビーム。The figure is a schematic diagram showing an example of the configuration of an optical information storage medium of the present invention. DESCRIPTION OF SYMBOLS 1... Plastic substrate, 2... Undercoat layer insoluble in halogenated hydrocarbon, 6... Cyanine dye thin film, 4...
...Laser beam.

Claims (1)

【特許請求の範囲】[Claims] ハロゲン化炭化水累浴媒に対して不溶化処理を施したプ
ラスチック基板上にシアニン糸色素薄膜を４ｆすること
な％徴とする、光学的情報記憶媒体。An optical information storage medium comprising a cyanine thread dye thin film formed on a plastic substrate which has been insolubilized in a halogenated hydrocarbon bath medium.
JP58089169A 1983-05-23 1983-05-23 Method for manufacturing optical information storage medium Expired - Lifetime JPH0619858B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58089169A JPH0619858B2 (en) 1983-05-23 1983-05-23 Method for manufacturing optical information storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58089169A JPH0619858B2 (en) 1983-05-23 1983-05-23 Method for manufacturing optical information storage medium

Publications (2)

Publication Number Publication Date
JPS59217241A true JPS59217241A (en) 1984-12-07
JPH0619858B2 JPH0619858B2 (en) 1994-03-16

Family

ID=13963294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58089169A Expired - Lifetime JPH0619858B2 (en) 1983-05-23 1983-05-23 Method for manufacturing optical information storage medium

Country Status (1)

Country Link
JP (1) JPH0619858B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63159090A (en) * 1986-12-23 1988-07-01 Fuji Photo Film Co Ltd Production of information recording medium
JPH0192938A (en) * 1987-10-02 1989-04-12 Fuji Photo Film Co Ltd Information recording medium
JPH01162250A (en) * 1987-12-19 1989-06-26 Fujimori Kogyo Kk Laminate for protecting optical recording layer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55122242A (en) * 1979-03-07 1980-09-19 Fujitsu Ltd Substrate for optical disc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55122242A (en) * 1979-03-07 1980-09-19 Fujitsu Ltd Substrate for optical disc

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63159090A (en) * 1986-12-23 1988-07-01 Fuji Photo Film Co Ltd Production of information recording medium
JPH0796333B2 (en) * 1986-12-23 1995-10-18 富士写真フイルム株式会社 Method of manufacturing information recording medium
JPH0192938A (en) * 1987-10-02 1989-04-12 Fuji Photo Film Co Ltd Information recording medium
JPH01162250A (en) * 1987-12-19 1989-06-26 Fujimori Kogyo Kk Laminate for protecting optical recording layer

Also Published As

Publication number Publication date
JPH0619858B2 (en) 1994-03-16

Similar Documents

Publication Publication Date Title
US4954380A (en) Optical recording medium and process for production thereof
US4527173A (en) Erasable, reusable optical recording element and method
EP0213923B1 (en) Optical recording medium and method of recording
JPS5978341A (en) Optical information recording medium
JPH0613238B2 (en) Optical information recording medium
JP2542647B2 (en) Optical information recording medium
US4871649A (en) Optical recording medium and optical recording method using the same
AU744048B2 (en) Optical recording medium
JPS59217241A (en) Optical information recording and storing medium
JP2001328350A (en) Optical recording medium
JPS57212634A (en) Optical information recording medium
JPH05258346A (en) Optical recording medium and its production
JPS62207686A (en) Optical information-recording medium
JP2663009B2 (en) Information recording medium and method of manufacturing the same
JP2671141B2 (en) Information recording medium and method of manufacturing the same
JP3556564B2 (en) Method of manufacturing optical recording medium and optical recording medium
JPH02289935A (en) Optical information recording medium and its production
JPH08324121A (en) Optical data recording medium
JPS60124289A (en) Optical information recording medium
TW469177B (en) Method of manufacturing optic information recording media
JP2805658B2 (en) Method for manufacturing optical information recording medium
JPS5977646A (en) Optical recording medium
JPS61100496A (en) Optical information-recording medium
JPH0447905B2 (en)
JPS59203252A (en) Optical information recording medium