公开(公告)号：US3836395A

公开(公告)日：1974-09-17

申请号：US24547172

申请日：1972-04-19

Applicant: BASF AG

Inventor： ROLLER H ,  STRITZINGER H ,  HARTMANN J ,  FALK R ,  BALZ W

IPC: G11B5/845 ,  H01F10/02

CPC classification number: G11B5/845

Abstract: A process for the manufacture of magnetic recording media exhibiting good orientation of the magnetic particles by coating a base with a viscous liquid dispersion of magnetic pigment, orienting the applied magnetizable particles by means of a magnetic field and drying the applied magnetic pigment dispersion. According to the invention, the magnetic pigment dispersion is subjected, immediately prior to the coating operation, to shear at a specific minimum shear rate gradient.

Abstract translation: 一种制造磁性记录介质的方法，其通过用磁性颜料的粘性液体分散体涂覆基底来使磁性颗粒呈现良好的取向，通过磁场定向施加的可磁化颗粒并干燥所施加的磁性颜料分散体。 根据本发明，磁性颜料分散体在涂覆操作之前立即以特定的最小剪切速率梯度剪切。