DE3106544C2 - Scratch-resistant, antistatic sound and image carriers - Google Patents
Scratch-resistant, antistatic sound and image carriersInfo
- Publication number
- DE3106544C2 DE3106544C2 DE19813106544 DE3106544A DE3106544C2 DE 3106544 C2 DE3106544 C2 DE 3106544C2 DE 19813106544 DE19813106544 DE 19813106544 DE 3106544 A DE3106544 A DE 3106544A DE 3106544 C2 DE3106544 C2 DE 3106544C2
- Authority
- DE
- Germany
- Prior art keywords
- sound
- scratch
- resistant
- image carriers
- antistatic
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
- G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
- G11B3/707—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only for video discs with grooves
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/682—Record carriers comprising protective coatings, e.g. anti static, anti-friction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Laminated Bodies (AREA)
- Physical Vapour Deposition (AREA)
Description
2020th
Die Erfindung betrifft kratzfeste, antistatische Ton- und Bildträger aus Kunststoffen, insbesondere Schall- und Videoplatten, die mit einer metallischen Oberflächenschicht versehen sind.The invention relates to scratch-resistant, antistatic sound and image carriers made of plastics, in particular sound and video disks provided with a metallic surface layer.
Ton- und Bildträger aus Kunststoffen, wie Schallplatten, Videoplatten oder andere mechanisch abgetastete Informationsträger, verlieren relativ schnell nach einer begrenzten Abspielhäufigkeit an Wiedergabegüte durch mechanischen Verschleiß des Trägermaterials und durch elektrostatisch angezogenen Staub. Die elektrostatischen Aufladungen führen außerdem zu einer Beeinträchtigung der Wiedergabequalität.Sound and image carriers made of plastic, such as records, video discs or other mechanically scanned Information carriers lose quality of reproduction relatively quickly after a limited playback frequency mechanical wear of the carrier material and from electrostatically attracted dust. The electrostatic Charging also leads to an impairment of the playback quality.
Es ist bekannt. Schallplatten durch Überziehen mit Goldschichten kratzfest und antistatisch zu machen. Dazu wird die Trägerplatte, beispielsweise aus Polyvinylchlorid, zuerst chemisch mit einer elektrisch leitenden Nickelschicht von 2—3 μηι Dicke überzogen und diese anschließend galvanisch mit etwa 5 μηι Schichtdikke vergoldet. Solche Schallplatten sind allerdings nicht «o mehr einwandfrei abspielbar und weisen eine geringe Tonqualität auf.It is known. To make records scratch-resistant and antistatic by coating them with gold layers. For this purpose, the carrier plate, for example made of polyvinyl chloride, is first chemically coated with an electrically conductive one Nickel layer of 2-3 μm thick is coated and this then galvanically with a layer thickness of about 5 μm gold plated. Such records, however, can no longer be played back properly and have a low level of performance Sound quality.
Es ist weiterhin bekannt, auf Schallplatten im Hochvakuum eine dünne Goldschicht von etwa 0,5 μιη Stärke aufzudampfen. Solche Schallplatten haben eine sehr gute optische Wirkung und lassen sich auch abspielen, jedoch ist die Haftfestigkeit der Goldschicht auf dem Kunststoffträger so gering, daß sich der Goldbelag nach wenigen Abspielzyklen abschabt.It is also known to have a thin gold layer of about 0.5 μm on records in a high vacuum To vaporize starch. Such records have a very good optical effect and can also be used play, but the adhesive strength of the gold layer on the plastic carrier is so low that the Scrapes off the gold coating after a few playback cycles.
Durch Aufbringen einer Grundlackschicht auf die Trägeroberfläche vor dem Vergolden kann man zwar die Haftfestigkeit der Goldschicht verbessern, die Lackschicht setzt jedoch den Ton- bzw. Bildrillen derartig zu, daß sich solche Platten nicht mehr abspielen lassen und nur noch dekorativen Zwecken dienen. Der dekorative Zweck steht auch bei allen andren bisher bekannten mit einer Metallschicht versehenen Schall- und Videoplatten im Vordergrund. Zum Abspielen sind diese weniger geeignet.By applying a base coat to the carrier surface before gilding, you can Improve the adhesive strength of the gold layer, but the lacquer layer sets the tone or image grooves to such an extent that such records can no longer be played and are only used for decorative purposes. Of the decorative purpose is also available with all other previously known soundproofing devices provided with a metal layer and video disks in the foreground. These are less suitable for playback.
Es war daher Aufgabe der vorliegenden Erfindung, kratzfeste und antistatische Ton- und Bildträger aus Kunststoff, insbesondere Schall- und Videoplatten, die mit einer metallischen Oberflächenschicht versehen sind, zu schaffen, die nicht nur ein dekoratives Aussehen besitzen, sondern auch beliebig oft mit gleichbleibender Ton- bzw. Bildqualität abspielbar sein solliten. Außerdem sollte möglichst das Edelmetall eingespart werden.It was therefore an object of the present invention to produce scratch-resistant and antistatic sound and image carriers Plastic, in particular sound and video discs, which are provided with a metallic surface layer are to be created that not only have a decorative appearance, but also as often as desired with a consistent one Sound or picture quality should be playable. In addition, the precious metal should be saved as much as possible.
Diese Aufgabe wurde erfindungsgemäß dadurch gelöst, daß die Oberflächen des Ton- bzw. Bildträgers mit einem im Hochvakuum aufgebrachten dünnen Überzug aus einer Eisen-Chrom-Nickel-Legierung beschichtet sind.This object was achieved according to the invention in that the surfaces of the sound or image carrier with a thin coating of an iron-chromium-nickel alloy applied in a high vacuum are coated.
Vorzugsweise enthält diese Eisen-Chrom-Nickel-Legierung 10 bis 25 Gew.-°/o Chrom und 5 bis 20 Gew.-% Nickel, insbesondere 15 bis 22 Gew.-% Chrom und 8 bis 15 Gew,-% Nickel.This iron-chromium-nickel alloy preferably contains 10 to 25% by weight of chromium and 5 to 20% by weight Nickel, in particular 15 to 22% by weight of chromium and 8 to 15% by weight of nickel.
Die Aufbringung dieser Metall-Legierungsschichten auf den Kunststoffträger erfolgt im Hochvakuum (< 8 · IQ-4 mbar)durch Aufdampfen oder Aufsputtern. Die Vorbehandlung der Kunststoffoberflächen, wie z. B. Reinigung, erfolgt nach bekannten Verfahren. Bewährt haben sich Metallschichtdicken von 0,2 bis 0,6 μιη, insbesondere 0,3 bis 0,5 μπι.These metal alloy layers are applied to the plastic carrier in a high vacuum (<8 · IQ- 4 mbar) by vapor deposition or sputtering. The pretreatment of the plastic surfaces, such as. B. cleaning is carried out according to known methods. Metal layer thicknesses of 0.2 to 0.6 μm, in particular 0.3 to 0.5 μm, have proven useful.
Die erfindungsgemäßen Schall- und Videoplatten konnten mit einem marktüblichen Tonabnehmersystem mehr als tausendmal abgespielt werden, ohne hörbare Einbußen an Wiedergabequalität. Außerdem kann während des Abspielvorgangs auf eine antistatische Behandlung der Platten verzichtet werden. Die Platten sind kratzfest und besitzen durch ihre hochglänzende Metalloberfläche ein dekoratives Aussehen.The sound and video disks according to the invention could be used with a commercially available pick-up system can be played back more than a thousand times with no audible loss of playback quality. Also can Antistatic treatment of the records can be dispensed with during playback. The plates are scratch-resistant and have a decorative appearance thanks to their high-gloss metal surface.
Die Abbildung zeigt schematisch eine Schallplatte, bei der der Kunststoffträger (1) mit einer im Hochvakuum aufgebrachten Metallschicht (2) aus einer Eisen-Chrom-Nickel-Legierung mit 18% Chrom und 8% Nickel versehen ist.The figure shows a schematic of a record in which the plastic carrier (1) is in a high vacuum applied metal layer (2) made of an iron-chromium-nickel alloy with 18% chromium and 8% nickel is provided.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (3)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813106544 DE3106544C2 (en) | 1981-02-21 | 1981-02-21 | Scratch-resistant, antistatic sound and image carriers |
| EP82101039A EP0058894B1 (en) | 1981-02-21 | 1982-02-12 | Antistatic and scratch-resistant sound/picture recording supports and method for their production |
| DE8282101039T DE3270547D1 (en) | 1981-02-21 | 1982-02-12 | Antistatic and scratch-resistant sound/picture recording supports and method for their production |
| AT82101039T ATE19315T1 (en) | 1981-02-21 | 1982-02-12 | SCRATCH-RESISTANT, ANTI-STATIC SOUND AND IMAGE CARRIERS AND PROCESS FOR THEIR MANUFACTURE. |
| US06/349,824 US4444849A (en) | 1981-02-21 | 1982-02-18 | Scratch resistant antistatic sound and picture carrier and process for its production |
| JP2464082A JPS57176504A (en) | 1981-02-21 | 1982-02-19 | Scratch resisting property and antistatic sound-reflection carrier and its manufacture |
| US06/540,851 US4503094A (en) | 1981-02-21 | 1983-10-11 | Process for producing scratch resistant antistatic sound and picture carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813106544 DE3106544C2 (en) | 1981-02-21 | 1981-02-21 | Scratch-resistant, antistatic sound and image carriers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3106544A1 DE3106544A1 (en) | 1982-09-23 |
| DE3106544C2 true DE3106544C2 (en) | 1983-03-24 |
Family
ID=6125461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813106544 Expired DE3106544C2 (en) | 1981-02-21 | 1981-02-21 | Scratch-resistant, antistatic sound and image carriers |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS57176504A (en) |
| DE (1) | DE3106544C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4885030B2 (en) * | 2007-03-29 | 2012-02-29 | 有限会社日幸開発 | Joining method and joining confirmation device for joint fitting of heavy temporary structure |
| US20090183443A1 (en) | 2008-01-21 | 2009-07-23 | Osborn Eric C | Universal structural attachment for seismic brace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1054247B (en) * | 1956-11-24 | 1959-04-02 | Basf Ag | Process for reducing the friction between magnetogram carriers and magnetic heads |
| GB1474842A (en) * | 1975-03-24 | 1977-05-25 | Optical Electrical Coatings Lt | Phonograph records |
-
1981
- 1981-02-21 DE DE19813106544 patent/DE3106544C2/en not_active Expired
-
1982
- 1982-02-19 JP JP2464082A patent/JPS57176504A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3106544A1 (en) | 1982-09-23 |
| JPS57176504A (en) | 1982-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |