DE3106544A1 - Scratch-resistant, antistatic sound and image carriers - Google Patents

Scratch-resistant, antistatic sound and image carriers

Info

Publication number
DE3106544A1
DE3106544A1 DE19813106544 DE3106544A DE3106544A1 DE 3106544 A1 DE3106544 A1 DE 3106544A1 DE 19813106544 DE19813106544 DE 19813106544 DE 3106544 A DE3106544 A DE 3106544A DE 3106544 A1 DE3106544 A1 DE 3106544A1
Authority
DE
Germany
Prior art keywords
sound
resistant
scratch
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.)
Granted
Application number
DE19813106544
Other languages
German (de)
Other versions
DE3106544C2 (en
Inventor
Richard Dipl.-Ing. Pöllmann
Peter Dipl.-Ing. 7070 Schwäbisch Gmünd Scheyrer
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.)
GFO GES fur OBERFLAECHENTECH
Original Assignee
GFO GES fur OBERFLAECHENTECH
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 GFO GES fur OBERFLAECHENTECH filed Critical GFO GES fur OBERFLAECHENTECH
Priority to DE19813106544 priority Critical patent/DE3106544C2/en
Priority to EP82101039A priority patent/EP0058894B1/en
Priority to DE8282101039T priority patent/DE3270547D1/en
Priority to AT82101039T priority patent/ATE19315T1/en
Priority to US06/349,824 priority patent/US4444849A/en
Priority to JP2464082A priority patent/JPS57176504A/en
Publication of DE3106544A1 publication Critical patent/DE3106544A1/en
Application granted granted Critical
Publication of DE3106544C2 publication Critical patent/DE3106544C2/en
Priority to US06/540,851 priority patent/US4503094A/en
Expired legal-status Critical Current

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)

Abstract

Scratch-resistant and antistatic sound and image carriers of plastics are obtained by providing their surfaces with a thin metal layer. The gold layers formerly applied galvanically or under a high vacuum have the disadvantage that they were either not adequately abrasion-resistant or detracted considerably from the reproduction quality. Better results are achieved if the surfaces of the sound or image carrier (1) are provided with a thin coating (2) of an iron-chromium-nickel alloy, applied under a high vacuum.

Description

GfO Gesellschaft für Oberflächentechnik mbH 7070 Schwäbisch Gmünd, Klarenbergstraße 79GfO Society for Surface Technology mbH 7070 Schwäbisch Gmünd, Klarenbergstrasse 79

Kratzfeste, antistatische Ton- und BildträgerScratch-resistant, antistatic sound and image carriers

Die Erfindung betrifft kratzfeste, antistatische Ton- und Bildträger aus Kunststoffen, insbesondere Schall- und Videoplatten, die mit einer metallischen ,j. Oberflächenschicht versehen sind.The invention relates to scratch-resistant, antistatic sound and image carriers made of plastics, in particular Sound and video disks with a metallic, j. Surface layer are provided.

Ton- und Bildträger aus Kunststoffen, wie Schallplatten, Videoplatten oder andere mechanisch abgetastete Informationsträger, verlieren relativSound and image carriers made of plastic, such as records, video discs or other mechanically scanned Information carriers lose relatively

2Q - schnell nach einer begrenzten Abspielhäufigkeit an ¥iedergabegüte durch mechanischen Verschleiß des Trägermaterials und durch elektrostatisch angezogenen Staub. Die elektrostatischen Aufladungen führen außerdem zu einer Beeinträchtigung der Wiedergabequälitat. 2Q - fast after a limited number of times quality of reproduction through mechanical wear of the carrier material and through electrostatically attracted Dust. The electrostatic charges also lead to an impairment of the reproduction quality.

Es ist bekannt, Schallplatten durch überziehen mit Goldschichten kratzfest und antistatisch zu machen. Dazu wird die Trägerplatte, beispielsweise aus PoIyvinylchlorid, zuerst chemisch mit einer elektrisch leitenden Nickelschicht von 2-3 p& Dicke überzogen und diese anschließend galvanisch mit etwa 5 /un Schichtdicke vergoldet. Solche Schallplatten sind allerdings nicht mehr einwandfrei abspielbar und weisen eine geringe Tonqualität auf.It is known to make records scratch-resistant and antistatic by coating them with layers of gold. For this purpose, the support plate, for example of PoIyvinylchlorid first chemically plated with an electroconductive nickel layer of thickness 2-3 p and plated this then electroplated with about 5 / un layer thickness. However, such records can no longer be played perfectly and have a poor sound quality.

Es ist weiterhin bekannt, auf Schallplatten im Hochvakuum eine dünne Goldschicht von e-*a 0,5 /im 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 put a thin gold layer of e- * a 0.5 / in thickness on records in a high vacuum to evaporate. Such records have a very good optical effect and can also be played, however, the bond strength of the gold layer on the Plastic carrier so small that the gold coating is scraped off 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 die Ton- bzw. Elldrillen zu, so daß sich solche Platten nicht mehl abspielen lassen und nur noch dekorativen Zwecken dit^dn. Der dekorative Zweck steht auch bei allen anderen bisher bekannten mit einer Metallschicht versehenen Schall- und Videoplatten im Vordergrund. Zum Abspielen sind diese weniger geeignet.By applying a base coat of paint to the carrier surface before gilding, it is true that the Improve the adhesive strength of the gold layer, but the lacquer layer clogs the clay or ellipsoidal drills, see above that such records cannot be played with flour and dit ^ dn only for decorative purposes. The decorative Purpose is also with all other previously known sound and metal layers 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 mitIt was therefore the object of the present invention to provide scratch-resistant and antistatic sound and image carriers made of plastic, in particular sound and video disks with

„j. 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 sollten. Außerdem sollte möglichst das Edelmetall eingespart"J. are provided with a metallic surface layer, to create 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

2Q werden.2Q will be.

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.

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atz-3t- Ltatz-3t- Lt

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1515th

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2525th

3030th

3535

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Vorzugsveise enthält diese Eisen-Chrom-Nickel-Legierung 10 Dis 25 Gew % Chrom und 5 Dis 20 Gew % Nickel, insbesondere 15 his 22 Gew $> Chrom und 8-15 Gew % Nickel.Vorzugsveise these iron-chromium-nickel alloy contains 10 wt% chromium and 25 Dis 5 Dis 20 weight% nickel, in particular 15 22 wt his $> chromium and 8-15% nickel by weight.

Die Aufbringung dieser Metall-Legierungsschichten auf den Kunststoffträger erfolgt im Hochvakuum (< 8-iO 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 nm, insbesondere 0,3 bis 0,5 /im.These metal alloy layers are applied to the plastic substrate in a high vacuum (<8-OK mbar) by vapor deposition or sputtering. The pretreatment of the plastic surfaces, e.g. cleaning, takes place according to known methods. Proven metal layer thicknesses of 0.2 to 0.6 nm, in particular 0.3 to 0.5 / μm.

Die erfindungsgemäßen Schall- und Videoplatten konnten mit einem marktüblichen Tonabnehmersystem mehr als tausendmal abgespielt werden, ohne hörbare Einbußen an Wiedergabequalität. Außerdem kann während des Absp"ielvorgangs auf eine antistische 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 can be played back more than a thousand times with a commercially available pick-up system without any audible loss of playback quality. In addition, during the playback process antistatic treatment of the panels can be avoided. The panels are scratch resistant and have a decorative appearance due to their high-gloss metal surface.

Die Abbildung zeigt schematisch eine Schallplatte, bei der der Kunststoffträger (i) mit einer im Hochvakuum aufgebrachten Metallschicht (2) aus einer Eisen-Chrom-Nickellegierung mit 18 5» Chrom und 8 % Nickel versehen ist.The figure shows a schematic of a record in which the plastic carrier (i) is provided with a metal layer (2) made of an iron-chromium-nickel alloy with 18 5 »chromium and 8 % nickel, which is applied in a high vacuum.

PAT/Dr.Br-ka
20.02.1981PAT / Dr.Br-ka
02/20/1981

Claims (3)

81 126 EM81 126 EM GfO Gesellschaft für Oberilächentechriik mbH 7070 Schwäbisch Gmünd, klarenbergstraße 79GfO Gesellschaft für Oberilächentechriik mbH 7070 Schwäbisch Gmünd ,klarbergstrasse 79 Kratzfeste, antistatische Ton- und BildträgerScratch-resistant, antistatic sound and image carriers Patentansprüche
15Claims
15th Kratzfeste, antistatische Ton- und Bildträger aus Kunststoffen, insbesondere .Schall- und Videoplatten,, die mit einer metallischen Oberflächenschicht versehen sind, dadurch gekennzeichnet, daß die Oberflächen des Ton- bzw. Bildträgers (i) mit einem im Hochvakuum aufgebrachten dünnen Überzug (2) aus einer Eisen-Chrom-Nickel-Legierung verseben sind.Scratch-resistant, antistatic sound and image carriers made of plastic, especially sound and video disks, which are provided with a metallic surface layer, characterized in that the surfaces of the sound or image carrier (i) with a thin coating (2) applied in a high vacuum an iron-chromium-nickel alloy. 2. Kratzfeste, antistatische Ton- und Bildträger2. Scratch-resistant, antistatic sound and image carriers 25. nach Anspruch 1, dadurch gekennzeichnet, daß die . Eisen-Chrom-Nickel-Legierung 1Ö bis 25 Gew #. Chrom, 5 bis 20 Gew £ Nickel, Rest Eisen enthält.25. according to claim 1, characterized in that the. Iron-chromium-nickel alloy 1Ö to 25 wt #. Chrome, Contains 5 to 20 percent by weight nickel, the remainder iron. 3. Kratzfeste, antistatische Ton- und Bildträger nach Anspruch i und 2, dadurch gekennzeichnet, daß die •Metallschicht 0,2 bis 0,6 /ia stark ist.3. Scratch-resistant, antistatic sound and image carriers Claims 1 and 2, characterized in that the • metal layer is 0.2 to 0.6 / generally thick.
DE19813106544 1981-02-21 1981-02-21 Scratch-resistant, antistatic sound and image carriers Expired DE3106544C2 (en)

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 true DE3106544A1 (en) 1982-09-23
DE3106544C2 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)

* Cited by examiner, † Cited by third party
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
EP2235383A2 (en) 2008-01-21 2010-10-06 Erico International Corporation I-beam seismic sway brace clamp

Citations (2)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE3106544C2 (en) 1983-03-24
JPS57176504A (en) 1982-10-29

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D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation