DE921413C - Process for the production of low-noise records - Google Patents
Process for the production of low-noise recordsInfo
- 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
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
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)
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) |
-
1948
- 1948-10-02 DE DEP13064A patent/DE921413C/en not_active Expired
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