Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape
A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording s...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording slave tape without stretch at a temperature of at least 40 DEG C. but less than the Curie point of said ferromagnetic material. Dimensional changes of the slave tape after thermal duplication are thereby reduced. |
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