JPS58166548A - Information recording member - Google Patents
Information recording memberInfo
- Publication number
- JPS58166548A JPS58166548A JP57049113A JP4911382A JPS58166548A JP S58166548 A JPS58166548 A JP S58166548A JP 57049113 A JP57049113 A JP 57049113A JP 4911382 A JP4911382 A JP 4911382A JP S58166548 A JPS58166548 A JP S58166548A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- nitrocellulose
- layer
- film
- pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- 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
- G11B7/243—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 inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
-
- 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
- G11B7/243—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 inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
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】
本発明は、金属、半金属の薄膜にレーザ光などのエネル
ギービームを照射して、ここに微少なビット（穴）ｔ−
あけることによシ高密匿記録できる記録膜の下地材料に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention involves irradiating a thin film of a metal or a metalloid with an energy beam such as a laser beam to form minute bits (holes) t-
This invention relates to a base material for a recording film that enables high-density recording by opening it.
金属、半金属薄−の下地層としてニトロセルロース全周
いる特許出願にＦｉ特開＃ＪＢ５５−４６９８８特開昭
５６−８６７９４がある。″また本発明者らの−ｍのも
のは、スタンパを用いてビット、溝を転写する際にニト
ロセルロースと紫外線硬化樹脂を使う特許を出願してい
る。これらの特許ではニトロセルロース材料そのものに
関する記述はない。Patent applications in which nitrocellulose is used all around as a metal or metalloid thin underlayer include Fi Unexamined Patent Publication #JB55-46988 and Unexamined Japanese Patent Application No. 56-86794. ``In addition, the present inventors -m have applied for a patent for using nitrocellulose and ultraviolet curing resin when transferring bits and grooves using a stamper.These patents do not include any descriptions regarding the nitrocellulose material itself. There isn't.
金属、半金属の薄膜の下地層としてニトロセルロースを
用いると、レーザ光ビームによって記録されビットの形
状が良好となシ、を九ビットがあかないという記録ミス
も無くなシ、その効果は大きい。このニトロセルロース
層の骨性はニトロセルロースの硝化度、可塑剤の添加、
および他高分子材料を相客させることによって制御でき
る。When nitrocellulose is used as the base layer of a metal or metalloid thin film, the bit shape recorded by the laser beam is good, and there are no recording errors such as missing 9 bits, which is a great effect. The bone quality of this nitrocellulose layer is determined by the nitrification degree of nitrocellulose, the addition of plasticizer,
and can be controlled by incorporating other polymeric materials.
下地層としてニトロセルロースがすぐれている点は（１
）全気中および酸素無しの雰囲気中において約１８０Ｃ
で熱分解を起し、ガスが発生するということ、（２）媒
体製作にあたっては有機溶媒に溶解し、スピン塗布で容
易に膜を形成できるという有利さ、（３１記録膜に対し
て悪影＊１−及ぼさないという点にある。上記の利点は
ニトロセルロースの硝化度の選択、可塑剤の添加、他高
分子材料のブレンドによりさらに大きくなる。The advantages of nitrocellulose as a base layer are (1)
) Approximately 180C in full air and oxygen-free atmosphere
(2) When manufacturing the medium, it has the advantage of being dissolved in an organic solvent and can be easily formed into a film by spin coating. 1- It has no effect.The above advantages can be further enhanced by selecting the degree of nitrification of nitrocellulose, adding a plasticizer, and blending other polymeric materials.
以下、本発明の一笑施例を第１図にもとづいて説明する
。図中１は直径３００ｓｌＩ、厚さ１ｍ程度の円板から
なるガラス、ある艷は透明プラス・チック（例ＰＭＭＡ
）である。この基板上に２で示すニトロセルロースＩｄ
０．１μｍ％ｌＱμｍ４をスピン塗布で形成する。この
上にＴ ｅ＋ Ａ ’ ４１６ 、 Ａ ｓ−Ｔ ｅ
−８ｅ、 Ｐ ｂ −Ｔ ｅ −８６％ ’Ｉト（Ｄ
Ｗ録ＦＪ１３が厚さ１００ｍ−１００ｎｍ に真空蒸層
あるいはスパッタリングによって形成される。Hereinafter, a simple embodiment of the present invention will be explained based on FIG. In the figure, 1 is a glass disc with a diameter of 300 slI and a thickness of about 1 m, and some are made of transparent plastic (e.g. PMMA).
). On this substrate, the nitrocellulose Id shown as 2
0.1 μm% lQμm4 is formed by spin coating. On top of this, T e + A' 416, A s-T e
-8e, P b -T e -86% 'IT(D
W-recording FJ13 is formed to a thickness of 100 m to 100 nm by vacuum evaporation or sputtering.
しかして、このような構造からなる光デイスク円板にお
いてレーザ光ビーム６が照射さｎると記録膜３Ｆｉこの
光音吸収し、発熱する。この熱により照射部分の記録膜
が融解し記録ビット５が形成される。この場合記録膜に
発生した熱の一部は下地層にも伝わシ、ニトロセルロー
スが加熱され、熱分解を起す。熱分解曲線を第３図に示
した。約１８０Ｇで急激に分解し、はとんど１００％減
瀘する。この際発生するＮ＊ 、Ｎｏｔ 、Ｃｏｔ 。When the optical disk having such a structure is irradiated with the laser beam 6, the recording film 3Fi absorbs this light sound and generates heat. This heat melts the recording film in the irradiated area, forming recording bits 5. In this case, part of the heat generated in the recording film is transferred to the underlayer, heating the nitrocellulose and causing thermal decomposition. The thermal decomposition curve is shown in Figure 3. It decomposes rapidly at about 180G, and the filtration is reduced by almost 100%. N*, Not, and Cot that occur at this time.
Ｈｌｏ 等のガスが記録ビットの形状を良好にし、記録
ミス防止、記Ｉａ！ｅｔ度向上に役立つ。ビット形状が
良好という意味はビット内に記録膜材料の残渣がないこ
と、ビットの周りがなめらかできれいな円形になってい
ることである。A gas such as Hlo improves the shape of the recording bit and prevents recording errors. Helps improve etiquette. A good bit shape means that there is no residue of recording film material inside the bit, and that the area around the bit is smooth and neatly circular.
ここで欧州できるニトロセルロースの硝化度（Ｎ％）Ｆ
ｉｌ−１３，４％であるが、望ましいのは１０〜１３％
である。１３％以上は火薬用であシ、＃！造時の取扱い
の安全性に問題がある。またＮ％が低いとガス発生量も
少くなり効果が期待できなくなる。これらｔケトン、エ
ステル、アルコール、アルコール等の有機溶媒に溶解し
、基板上にスピン塗布する。望ましい有機溶媒としては
沸点の高い酢酸−ｎ−ブチル、酢酸１ｓｏ−ブチル、酢
酸ｎ−アミル、酢酸１ｓｏ−アミル等である。Nitrocellulose nitrification degree (N%) F which can be produced here in Europe
il-13.4%, but preferably 10-13%
It is. More than 13% is for explosives, #! There is a problem with the safety of handling during manufacturing. Moreover, if the N% is low, the amount of gas generated will also be small, making it impossible to expect the effect. These t-ketones, esters, alcohols, etc. are dissolved in an organic solvent such as alcohol, and spin coated onto a substrate. Desirable organic solvents include n-butyl acetate, 1so-butyl acetate, n-amyl acetate, and 1so-amyl acetate, which have a high boiling point.
また上記ニトロセルロールに可塑剤添加あるいは他島分
子材料をブレンドしてもガス発生の効果が期待できる。Furthermore, the effect of gas generation can be expected by adding a plasticizer or blending other molecular materials to the nitrocellulose.
可塑剤添加、他制分子材料のブレンドは下地！−として
の機械的性質、とくに湿度による膨潤の程度を抑えるこ
とができ記録膜のクラック発生防止に役立つ。ただし添
加型、ブレンドｔＦｉ材料によって異なるが、ガス発生
の効果が認められる、化学的に妾定である、光学的に透
明である等の条件を満足させる必要がある。Plasticizer addition and blending of other molecular materials are the base! - Mechanical properties, especially the degree of swelling caused by humidity, can be suppressed, which is useful for preventing cracks in the recording film. However, although this differs depending on the additive type and blended tFi material, it is necessary to satisfy conditions such as the gas generation effect being recognized, being chemically acceptable, and being optically transparent.
４体的には可塑剤としてはショウノウ、７タル酸エステ
ル（ジブチルフタレート、ジオクチル７タレートなど）
、９ん酸エステル（シん酸トリフェニル、りん酸トリク
レジルなど）、ポリエステル類（多塩基性酸とグリセリ
ンまたはグリコールなどの多価アルコールとのエステル
）やポリ酢酸ビニル、エチレン・酢酸ビニル共重合切な
どｔ−用することができる。またニトロセルロースは天
然および合成ポリへ−樹脂との相溶性がすぐれてお、６
゜７−ｖノド材として他のセルローｋｔｌｊ４ｆｔ−（
セルロースアセテートなど）、アルキッド系（７タル酸
およびマレイン酸樹脂）、ビニル系（酢酸ビニル、塩化
ビニル・共重合体樹脂）、アミン系（エリアおよびメラ
ミン樹脂）やフェノール系（油溶性の７エノール・ホル
ムアルテヒト樹脂）などを使用できる。これらのａＩ類
と量に応じて溶媒の種類を変える必要がある。Plasticizers include camphor, heptatarate (dibutyl phthalate, dioctyl heptatarate, etc.)
, 9-phosphate esters (triphenyl phosphate, tricresyl phosphate, etc.), polyesters (esters of polybasic acids and polyhydric alcohols such as glycerin or glycol), polyvinyl acetate, ethylene/vinyl acetate copolymerization etc. can be used for t-. In addition, nitrocellulose has excellent compatibility with natural and synthetic polyester resins.
゜7-V Other cellulose ktlj 4ft-(
Cellulose acetate, etc.), alkyd type (7-talic acid and maleic acid resin), vinyl type (vinyl acetate, vinyl chloride, copolymer resin), amine type (area and melamine resin), and phenolic type (oil-soluble 7 enol, Formaltech resin) etc. can be used. It is necessary to change the type of solvent depending on these aI species and their amounts.
ニトロセルロース層の形成後、加熱などにより有機溶媒
を完全に除去し、この上に記録膜としてＰ ｂ −Ｔ
ｅ −８ｅ ’に２００〜５００ｎｍ （Ｄ４すＫＩＣ
”１４看する。この記録媒体は半４体レーザ光ビーム（
７５０〜６５０ｎｍ 波長）で、良好なピッ）１−あけ
ることができる。After forming the nitrocellulose layer, the organic solvent is completely removed by heating, etc., and a recording film of P b -T is deposited on top of this as a recording film.
200-500nm at e-8e' (D4KIC
”14.This recording medium is a semi-four body laser beam (
750-650nm wavelength), it can be opened with good pitch.
なお、上述の一実施例は、ｔｇ１図に示すように基板上
に直接ニトロセルロース層のある場合であるが、記録円
板にあらかじめトラッキング用の溝などｔ付ける場合＜
Ｆｉ第２図のような構造となる。The above-mentioned embodiment is a case where the nitrocellulose layer is directly on the substrate as shown in Fig.
Fi The structure is as shown in Figure 2.
これは溝つきのスタンパ−上にニトロセルロース′に塗
布し、乾燥後紫外線照射で硬化する樹脂液をのせ、その
上から基板全稈しつけ、紫外線の照射によ１硬化させ、
メタ／パー表面とニトロセルロース面との界面で＠ｒ離
させる、つまりレプリカを取るものである。This is applied to nitrocellulose on a grooved stamper, and after drying, a resin solution that hardens with ultraviolet rays is placed on top of it, the entire culm of the substrate is basted, and it is cured by ultraviolet irradiation.
This is to separate @r at the interface between the meta/par surface and the nitrocellulose surface, that is, to take a replica.
これのニトロセルロース層の上に記録ｇｔ−真空蒸層で
つける。この際のニトロセルロース層に関しては第１図
の場合と同様であるが、レプリカ金収るときニトロセル
ロース層にかかる駒：雌刃により破壊しないためにニト
ロセルロースの分子量は１．５Ｘ１０’以上が望ましい
。A recording gt-vacuum evaporation layer is applied on top of this nitrocellulose layer. The nitrocellulose layer at this time is the same as the case in Figure 1, but the pieces that are attached to the nitrocellulose layer when the replica gold is placed: It is desirable that the molecular weight of the nitrocellulose is 1.5 x 10' or more so that it will not be destroyed by the female blade. .
本発明によれば記録膜の下地材料として用いるニトロセ
ルロースの硝化度の選択、可塑剤添加、他制分子材料の
ブレンドすることにより記録ピツト形状が良好となシ、
記録ミスのない、しかも高感度の記録媒体とする効果が
ある。According to the present invention, the shape of the recording pit can be improved by selecting the degree of nitrification of the nitrocellulose used as the base material of the recording film, adding a plasticizer, and blending other molecular materials.
This has the effect of making the recording medium free from recording errors and highly sensitive.
ＷＩ１図、第２図は本発明の一実施９１Ｊｔ示す概略的
構成図、第３図はニトロセルロースのＮ、中の熱分解油
ｉｔ示す図である。
１・・・基板、２・・・ニトロセルロース層（可塑剤、
他高分子材料営む場合あり）、３・・・金部、半金属の
記録膜、４・・・他の鳩分子材料層、５・・・記録さｎ
た′ｆＪ？ 図
￥Ｊ ｚ 図
ｖ５３ 図
」１ 贋 （Ｃ）WI1 and FIG. 2 are schematic configuration diagrams showing one embodiment of the present invention, and FIG. 3 is a diagram showing pyrolysis oil in nitrocellulose N. 1...Substrate, 2...Nitrocellulose layer (plasticizer,
3... Gold part, semimetal recording film, 4... Other pigeon molecule material layer, 5... Recording n
Ta'fJ? Figure ￥ J z Figure v53 Figure 1 False (C)
Claims (1)
としてニトロセルロースを用いる光デイスク円板におい
て、硝化度が１−１．１４％の範囲にあるニトロセルロ
ースを用いることｔ％黴とする情報の記録用部材。1. In an optical disk disc using nitrocellulose as the base layer of a heat mode recording film by a laser beam, use nitrocellulose with a degree of nitrification in the range of 1-1.14% to record information with t% mold. Parts for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049113A JPS58166548A (en) | 1982-03-29 | 1982-03-29 | Information recording member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049113A JPS58166548A (en) | 1982-03-29 | 1982-03-29 | Information recording member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58166548A true JPS58166548A (en) | 1983-10-01 |
Family
ID=12822006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57049113A Pending JPS58166548A (en) | 1982-03-29 | 1982-03-29 | Information recording member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137741A (en) * | 1985-12-09 | 1987-06-20 | Hitachi Maxell Ltd | Additional writing type optical information recording disk and its production |
| EP0385341A2 (en) * | 1989-03-03 | 1990-09-05 | TDK Corporation | Optical recording medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5546988A (en) * | 1978-09-29 | 1980-04-02 | Fuji Photo Film Co Ltd | Thermal recording material |
| JPS5686794A (en) * | 1979-12-18 | 1981-07-14 | Fujitsu Ltd | Optical recording medium |
| JPS5724290A (en) * | 1980-07-20 | 1982-02-08 | Tdk Corp | Heat mode photorecording medium |
-
1982
- 1982-03-29 JP JP57049113A patent/JPS58166548A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5546988A (en) * | 1978-09-29 | 1980-04-02 | Fuji Photo Film Co Ltd | Thermal recording material |
| JPS5686794A (en) * | 1979-12-18 | 1981-07-14 | Fujitsu Ltd | Optical recording medium |
| JPS5724290A (en) * | 1980-07-20 | 1982-02-08 | Tdk Corp | Heat mode photorecording medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137741A (en) * | 1985-12-09 | 1987-06-20 | Hitachi Maxell Ltd | Additional writing type optical information recording disk and its production |
| EP0385341A2 (en) * | 1989-03-03 | 1990-09-05 | TDK Corporation | Optical recording medium |
| US5161150A (en) * | 1989-03-03 | 1992-11-03 | Tdk Corporation | Optical recording medium |
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