JPS6037700Y2 - Structure of disk record - Google Patents
Structure of disk recordInfo
- Publication number
- JPS6037700Y2 JPS6037700Y2 JP1978078775U JP7877578U JPS6037700Y2 JP S6037700 Y2 JPS6037700 Y2 JP S6037700Y2 JP 1978078775 U JP1978078775 U JP 1978078775U JP 7877578 U JP7877578 U JP 7877578U JP S6037700 Y2 JPS6037700 Y2 JP S6037700Y2
- Authority
- JP
- Japan
- Prior art keywords
- base
- protective layer
- disc
- disk
- recording layer
- 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.)
- Expired
Links
Description
【考案の詳細な説明】
本考案は防曇性及び耐摩耗性に秀れたディスクレコード
を提供しようとするものである。[Detailed Description of the Invention] The present invention aims to provide a disc record with excellent antifogging properties and wear resistance.
光学式のレコードプレーヤにおいてレーザビームをディ
スクレコードに照射する場合、ディスク基台を通して照
射するものと、記録層の表面に形成した保護層を介して
照射するものとがあるが、前者のものの方が表面状態の
変化による影響を受は難い利点があるとされている。When irradiating a disc record with a laser beam in an optical record player, there are two methods: one is to irradiate the laser beam through the disc base, and the other is to irradiate it through a protective layer formed on the surface of the recording layer.The former method is better. It is said that it has the advantage of being less susceptible to changes in surface conditions.
そこで、一般のプレーヤでは、ディスク基台の１面に信
号記録層を形成したものの他面からレーザビームを照射
させ、該ビームの前記記録層から反射ビームを読みとる
ようにしているが、それでも前記ディスク基台の表面状
態の影響は無視できず、たとえば５０μｍ以上のクラッ
チ等が生じると信号のＳ／Ｎ比に大きな影響を与える。Therefore, in general players, a signal recording layer is formed on one side of the disc base, and a laser beam is irradiated from the other side of the disc base, and the reflected beam from the recording layer is read. The influence of the surface condition of the base cannot be ignored; for example, if a clutch with a diameter of 50 μm or more occurs, it will greatly affect the S/N ratio of the signal.
これを防止するには基台表。面の耐摩耗性を向上させな
ければならない。To prevent this, use a base table. The wear resistance of the surface must be improved.
一方、ディスク基台は気象変化並びにゴミ等の付着等に
よる環境変化に基づきその表面が曇る傾向があるが、そ
れに対して従来はその曇りをその都度払拭する方法を採
っていた。On the other hand, the surface of the disk base tends to become cloudy due to environmental changes such as weather changes and adhesion of dust, etc., but in the past, a method has been adopted to deal with this problem by wiping away the cloudiness each time.
これでは、その払拭作業時に基台表面を傷付けるおそれ
があるし、その作業自体が煩瑣に絶えない。In this case, there is a risk of damaging the base surface during the wiping operation, and the operation itself is cumbersome.
本考案はか）る従来の欠点を解消すべく防曇性及び耐摩
耗性に秀れたディスクレコードを提供しようとするもの
である。The present invention aims to overcome these conventional drawbacks by providing a disc record that is excellent in anti-fog properties and wear resistance.
図面は本考案の１実施例の断面図を示したものである。The drawing shows a cross-sectional view of one embodiment of the present invention.
１は透明なディスク基台であり、それは塩化ビニールに
て成型されその厚みは約１７７１７１１である。1 is a transparent disk base, which is molded from vinyl chloride and has a thickness of about 1,771,711 mm.
このディスク基台の１面には周知の方法によって信号記
録層２が形成され、更にこの記録層を保護する為の層３
が形成されている。A signal recording layer 2 is formed on one surface of this disc base by a well-known method, and a layer 3 is further formed to protect this recording layer.
is formed.
一方このディスク基台の他面には、該基台の素材である
塩化ビニールに比し、防曇性及び耐摩耗性の項目におい
て秀れた保護層４を形成する。On the other hand, a protective layer 4 is formed on the other surface of the disk base, which is superior in terms of antifogging and abrasion resistance compared to vinyl chloride, which is the material of the base.
この保護層は、たとえば樹脂状シリコンを有機溶媒で溶
かしたものに硬化塩化ビニールを重量比で約３０％混合
してなる溶液を前記ディスク基台に約１００μｍの層厚
となるように塗布して構成される。This protective layer is formed by applying a solution of about 30% by weight of cured vinyl chloride to resinous silicone dissolved in an organic solvent to a thickness of about 100 μm on the disk base. configured.
この保護層はその表面の硬度が鉛筆硬度で囮程度であり
、またその防曇性はこの保護層を沸騰する水蒸気にあて
がってもその付着が認められないものであった。The surface hardness of this protective layer was that of a pencil hardness, and its antifogging properties were such that no adhesion was observed even when the protective layer was exposed to boiling water vapor.
成上の如く本考案はレーザビームの出入するディスク基
台の表面に防曇性と耐摩耗性の両性質を兼ねた保護層、
特にシリコン化合物とビニール化合物の混合樹脂からな
る保護層を構成したので、防曇性及び耐摩耗性に秀れた
ディスクレコードを得ることができ実用的である。As described above, the present invention has a protective layer that has both anti-fog and wear-resistant properties on the surface of the disk base through which the laser beam enters and exits.
In particular, since the protective layer is made of a mixed resin of a silicon compound and a vinyl compound, it is possible to obtain a disc record with excellent antifogging properties and wear resistance, which is practical.
図面は本考案のｌ実施例の断面図である。 １・・・・・・ディスク基台、 ２・・・・・・信号記録層、 ４・・・ ・・・保護層。 The drawing is a sectional view of an embodiment of the present invention. 1...Disc base, 2...signal recording layer, 4... ...protective layer.
Claims (1)
面に、防曇性及び耐摩耗性において該基台に比して秀れ
た保護層を形成してなるディスクレコードの構造。 ２ 前記保護層は、シリコン化合物とビニール化合物の
混合体である登録請求の範囲第１項記載のディスクレコ
ードの構造。[Claims for Utility Model Registration] 1. A transparent disk base with a signal recording layer on one side, and a protective layer superior in anti-fog properties and abrasion resistance compared to the base on the other side. The structure of a disk record. 2. The structure of a disc record according to claim 1, wherein the protective layer is a mixture of a silicon compound and a vinyl compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978078775U JPS6037700Y2 (en) | 1978-06-07 | 1978-06-07 | Structure of disk record |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978078775U JPS6037700Y2 (en) | 1978-06-07 | 1978-06-07 | Structure of disk record |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54179104U JPS54179104U (en) | 1979-12-18 |
| JPS6037700Y2 true JPS6037700Y2 (en) | 1985-11-11 |
Family
ID=28996154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978078775U Expired JPS6037700Y2 (en) | 1978-06-07 | 1978-06-07 | Structure of disk record |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037700Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724042A (en) * | 1980-07-18 | 1982-02-08 | Sony Corp | Optical information recording medium and its production |
| FR2528216B1 (en) * | 1982-06-08 | 1988-01-08 | Thomson Csf | PROTECTED OPTICAL DISC WITH FREE LAYER |
| JPS6323236A (en) * | 1987-05-21 | 1988-01-30 | Sanyo Electric Co Ltd | Structure of disk record |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156605A (en) * | 1976-06-18 | 1977-12-27 | Thomson Brandt | Data carrier and method of producing same |
-
1978
- 1978-06-07 JP JP1978078775U patent/JPS6037700Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156605A (en) * | 1976-06-18 | 1977-12-27 | Thomson Brandt | Data carrier and method of producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54179104U (en) | 1979-12-18 |
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