发明名称 |
PRODUCTION OF MAGNETIC RECORDING CARRIER |
摘要 |
PURPOSE: To prepare a magnetic recording medium by one operating process by using a casting extruder wherein a magnet with a shape of rectangular parallelepiped is arranged in parallel to a layer medium behind the layer medium and an opening part of the extruder exists in facing to the top end edge of the magnet. CONSTITUTION: Two layers are applied on a polyethylene terephthalate layer medium with a thickness of approximately 7μm in a biaxial casting apparatus with a casting speed of approximately 100 m/min. In this case, the layer thickness of the top side layer is approximately 8μm and the layer thickness of the bottom side layer is approximately 1.6μm. Successively, a magnetic recording medium is cut into a width of approximately 8 mm. It is possible thereby to incorporate mainly a metal powder or metal powder alloy which does not spoil technical quality of a recording apparatus into the recording medium as magnetizable particles and to prepare it by one operating process. |
申请公布号 |
JPH06226761(A) |
申请公布日期 |
1994.08.16 |
申请号 |
JP19930318108 |
申请日期 |
1993.12.17 |
申请人 |
BEE A S F MAGNETICS GMBH |
发明人 |
RAINHARUTO KURETSUCHIYUMAA;ARUBAATO PERUCHIYU;YOOZEFU SHIERUBURE |
分类号 |
B29C39/42;B05C9/06;B29L31/34;G11B5/716;G11B5/845;G11B5/848;(IPC1-7):B29C39/42 |
主分类号 |
B29C39/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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