| 摘要 |
PURPOSE:To make a transportation at high speed possible by a titled material and to obtain a sufficiently large thermoremanent magnetization, by making a thin plate of soft magnetic material embedded in a polymer plastic film as a magnetic path of a magnetic field generated from a magnetic head and introducing the magnetic field to a magnetic layer of a thermomagnetic recording material. CONSTITUTION:A thin plate of a material having high magnetic permeability 8 is stuck in layer on a polymer film which is a nonmagnetic substance 9, and a polymer film 9 is stacked on the plate 8, and such work is repeated to finish a belt (a basic layer 3) having a fixed length and to obtain a fixed thickness (l). Thereafter, a thermomagnetizable magnetic layer 2 is provided on the surface of the basic layer 3 to constitute a thermomagnetic recording material 1. By using the recording material 1 constituted in such a way, as the magnetic flux generated from a magnetic head 4 is induced to the magnetic layer 2 by the material having high magnetic permeability 8, the basic layer 3 is made sufficiently thick, and the strength durable enough to tension by a transportation driving force is endowed. |
