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DE921413C - Process for the production of low-noise records - Google Patents

Process for the production of low-noise records

Info

Publication number
DE921413C
DE921413C DEP13064A DEP0013064A DE921413C DE 921413 C DE921413 C DE 921413C DE P13064 A DEP13064 A DE P13064A DE P0013064 A DEP0013064 A DE P0013064A DE 921413 C DE921413 C DE 921413C
Authority
DE
Germany
Prior art keywords
production
low
record
noise records
coating
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
Application number
DEP13064A
Other languages
German (de)
Inventor
Guenter Mehlich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEP13064A priority Critical patent/DE921413C/en
Application granted granted Critical
Publication of DE921413C publication Critical patent/DE921413C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68Record carriers
    • G11B3/70Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers

Landscapes

  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

Verfahren zur Herstellung nadelgeräuscharmer Schallplatten Das Nadelgeräusch ist der stärkste Fehler der heutigen Schallplatte. Besonders die harte Schellackplatte mit ihrem hohen Abnutzungswiderstand weist ihn in hohem Maße auf, während die Lackfolienplatte sich da günstiger verhält, ihre Abnutzung ist aber viel höher.Process for the production of low-needle noise records The needle noise is the biggest flaw of today's record. Especially the hard shellac record with its high wear resistance, it shows it to a high degree, while the lacquer film plate behaves more favorably, but their wear and tear is much higher.

Es ist bereits vorgeschlagen worden, die fertige Schallplatte mit einem Lacküberzug zu versehen, um die Platte vor äußerlichen Verletzungen (Kratzern) zu schützen. Zu diesem Zweck muß der Überzug eine beträchtliche Stärke haben.It has already been suggested to use the finished record to provide a lacquer coating to protect the plate from external damage (scratches) to protect. For this purpose the coating must have a considerable thickness.

Die Erfindung sieht nun ebenfalls vor, die Schallplatte nach der Fertigstellung durch Pressen mit einem Lacküberzug zu versehen, aber dieser Überzug soll nicht die Platte vor Verletzungen schützen, er soll lediglich die Rille glätten. In einer Mikroaufnahme sieht die Plattenrille ähnlich wie ein Kopfsteinpflaster aus. Die Köpfe sind die einzelnen Körner des Plattenfüllmaterials, das erforderlich ist, um die Plattenabnutzung zu verringern.The invention now also provides for the record after completion to be provided with a coating of varnish by pressing, but this coating is not intended protect the plate from injuries, it should only smooth the groove. In a Micrograph, the plate groove looks similar to a cobblestone pavement. the Heads are the individual grains of panel filler material that is required to reduce plate wear.

Der Überzug soll so dünn sein, daß er gerade dieses »Kopfsteinpflaster« glättet, er darf ab°r keinesfalls die Rillenform verändern, sonst würden besonders die hohen Töne leiden. Man erreicht dies gemäß der Erfindung durch eine geeignete, genau kontrollierte Verdünnung des Lackes, in den die Platte beispielsweise getaucht wird. Durch diesen Überzug gleitet die Abtastnadel in einer weicheren, elastischen Masse und die Schallplatte hat jetzt mehr die Eigenschaften einer Lackfolienplatte, deren Nadelgeräusch etwa 6 db geringer ist als bei einer Schellackplatte.The coating should be so thin that it just covers this "cobblestone" smooths, he must never change the shape of the groove from ° r, otherwise it would be special the high notes suffer. This is achieved according to the invention by a suitable, precisely controlled dilution of the lacquer in which the plate is dipped, for example will. Through this coating, the stylus slides in a softer, elastic mass and the record now has more the properties of a lacquer film plate, whose needle noise is about 6 db less than that of a shellac record.

Die Lackschicht soll hochelastisch sein, um auch bei höherem Nadeldruck nicht zerschnitten zu werden.The lacquer layer should be highly elastic so that it can also be used with higher needle pressure not to be cut up.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung nadelgeräuscharmer Schallplatten, dadurch gekennzeichnet, daß die Schallplatte nach der Pressung mit einer Lackschicht versehen wird, die nur die Zwischenräume zwischen den Körnern des Füllstoffes der Schallplatte ausfüllt.PATENT CLAIM: Process for the production of low-noise records, characterized in that the record is coated with a layer of varnish after pressing is provided that only the spaces between the grains of the filler Record fills out.
DEP13064A 1948-10-02 1948-10-02 Process for the production of low-noise records Expired DE921413C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP13064A DE921413C (en) 1948-10-02 1948-10-02 Process for the production of low-noise records

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP13064A DE921413C (en) 1948-10-02 1948-10-02 Process for the production of low-noise records

Publications (1)

Publication Number Publication Date
DE921413C true DE921413C (en) 1954-12-16

Family

ID=7364419

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP13064A Expired DE921413C (en) 1948-10-02 1948-10-02 Process for the production of low-noise records

Country Status (1)

Country Link
DE (1) DE921413C (en)

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