BASISFOLIE FUER EIN MAGNETISCHES AUFZEICHNUNGSBAND SOWIE VERFAHREN ZUR HERSTELLUNG EINER SOLCHEN FOLIE

The invention provides a carrier foil for magnetic recording tapes composed of a thermoplastic synthetic resin, which foils have been manufactured so that the stiffness (elasticity modulus) E1 in the longitudinal direction of the foil is at least 4000 N/mm2 and the stiffness (elasticity modulus) in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PETER VIDEC,BERNARD
Format:	Patent
Sprache:	ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention provides a carrier foil for magnetic recording tapes composed of a thermoplastic synthetic resin, which foils have been manufactured so that the stiffness (elasticity modulus) E1 in the longitudinal direction of the foil is at least 4000 N/mm2 and the stiffness (elasticity modulus) in the transverse direction of the foil is at least 1.3 E1. These carrier foils are more suitable for very thin magnetic tapes and are more resistant against defects such as buckling, folding, wrinkling and cupping than known carrier foils for record carriers having a comparable stiffness, but in which the stiffness distribution is different.