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公开(公告)号：EP0450956A3
公开(公告)日：1991-12-11
申请号：EP91302974.0
申请日：1991-04-04
IPC分类号： G11B5/845
CPC分类号： G11B5/845
摘要： A method of producing a coated magnetic recording medium comprises a step of coating a nonmagnetic substrate with a magnetic paste layer mainly composed of acicular or granular magnetic particles and a resin binder, a spontaneous drying step for a specific period for inducing leveling of coated surface and spontaneous volatilization of solvent without applying magnetic field from outside after coating the magnetic paint, a first orientation step for dissipating the aggregated particles by a sudden change in magnetic field while inducing magnetic moment in magnetic particles by a strong DC magnetic field inside the coated surface and in a longitudinal direction of the medium for arraying the magnetic particles in the coated surface in the longitudinal direction, and a successive second orientation step for suppressing the magnetic repulsive force among particles while arraying the magnetic particles by a DC magnetic field in the coated surface in the longitudinal direction.
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2.发明公开Method of producing magnetic recording media 失效Verfahren zur Herstellung magnetischerAufzeichnungsträger。
公开(公告)号：EP0450956A2
公开(公告)日：1991-10-09
申请号：EP91302974.0
申请日：1991-04-04
IPC分类号： G11B5/845
CPC分类号： G11B5/845
摘要： A method of producing a coated magnetic recording medium comprises a step of coating a nonmagnetic substrate with a magnetic paste layer mainly composed of acicular or granular magnetic particles and a resin binder, a spontaneous drying step for a specific period for inducing leveling of coated surface and spontaneous volatilization of solvent without applying magnetic field from outside after coating the magnetic paint, a first orientation step for dissipating the aggregated particles by a sudden change in magnetic field while inducing magnetic moment in magnetic particles by a strong DC magnetic field inside the coated surface and in a longitudinal direction of the medium for arraying the magnetic particles in the coated surface in the longitudinal direction, and a successive second orientation step for suppressing the magnetic repulsive force among particles while arraying the magnetic particles by a DC magnetic field in the coated surface in the longitudinal direction.
摘要翻译： 涂布磁记录介质的制造方法包括以主要由针状或粒状磁性粒子和树脂粘合剂构成的磁性浆料层涂布非磁性基材的步骤，特定时期的自发干燥步骤，用于引发涂布表面的调平， 在涂覆磁性涂料之后不施加磁场的溶剂的自发挥发，第一取向步骤，通过磁场中的突然变化来耗散聚集的颗粒，同时通过涂覆表面内的强直流磁场诱导磁性颗粒中的磁矩;以及 在用于在纵向方向上排列涂覆表面中的磁性颗粒的介质的纵向方向上，以及连续的第二取向步骤，用于在通过涂覆表面中的DC磁场排列磁性颗粒的同时抑制颗粒之间的磁排斥力 纵向。
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公开(公告)号：EP0487334B1
公开(公告)日：1995-08-09
申请号：EP91310710.8
申请日：1991-11-20
发明人： Suzuki, Hiroshi , Shimasaki, Yukihiro , Sakamoto, Kazunori , Mido, Yuji , Kisoda, Akira , Hirokoh, Masaki
IPC分类号： G11B5/704
CPC分类号： G11B5/7305 , G11B5/708 , G11B5/71
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5.发明公开Magnetic recording tape and method for fabricating same 失效Magnetisches Aufzeichnungsband und Verfahren zu seiner Herstellung。
公开(公告)号：EP0487334A1
公开(公告)日：1992-05-27
申请号：EP91310710.8
申请日：1991-11-20
发明人： Suzuki, Hiroshi , Shimasaki, Yukihiro , Sakamoto, Kazunori , Mido, Yuji , Kisoda, Akira , Hirokoh, Masaki
IPC分类号： G11B5/704
CPC分类号： G11B5/7305 , G11B5/708 , G11B5/71
摘要： A magnetic recording tape of the type which comprises a non-magnetic support and a magnetic layer comprised of a magnetic powder and a binder resin and formed on at least one side of the non-magnetic support is described. The tape has a total tickness of from 4.0 to 20.0 µ m and the magnetic layer has a root mean square surface roughness of from 2.0 nm to 5.5 nm with a value of from the root mean square plane to a deepest recess of from 8 to 25 nm. The magnetic layer has a coefficient of friction of not larger than 0.25 and has an amount of the binder resin, which is dissolved out in tetrahydrofluran, of not larger than 4.5 wt% of the magnetic layer. By this the magnetic tape has good surface smoothness, vacuum deposited metallic film, while being imparted with good film strength and runnability. Methods for fabricating such a magnetic tape are also disclosed.
摘要翻译： 描述了一种磁记录带，其包括非磁性支撑体和由非磁性载体的至少一侧上形成的磁性粉末和粘合剂树脂构成的磁性层。 磁带的总刻度为4.0至20.0μm，磁性层的均方根表面粗糙度为2.0nm至5.5nm，从均方根到最深凹陷的值为8至25 纳米。 磁性层的摩擦系数为0.25以下，溶解于四氢呋喃中的粘合剂树脂的量为磁性层的4.5重量％以下。 由此，磁带具有良好的表面光滑度，真空沉积金属膜，同时具有良好的膜强度和运行性能。 还公开了制造这种磁带的方法。
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