发明名称 |
Magnetic orientation system |
摘要 |
A two-part arrangement of permanent magnets with low retentivity conducting elements for the flow of magnetic force is used in order to orientate magnetically anisotropic pigments in a suspension in the direction of tape travel during the production of a magnetic tape by means of magnetic fields. The first part of the arrangement acts on the suspension with an inhomogeneous strong magnetic field of about 5000 A/cm which is narrowly restricted physically, without anticipating the orientation in the direction of tape travel. Orientation in the direction of tape travel takes place in the second part of the arrangement which has a physically extended but weaker field.
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申请公布号 |
US4440106(A) |
申请公布日期 |
1984.04.03 |
申请号 |
US19820386400 |
申请日期 |
1982.06.08 |
申请人 |
AGFA-GEVAERT AKTIENGESELLSCHAFT |
发明人 |
GREINER, JOACHIM;GAERTNER, EBERHARD |
分类号 |
G11B5/845;(IPC1-7):H01F13/00 |
主分类号 |
G11B5/845 |
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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