| 摘要 |
Magnetic ink contg. strontium ferrite (SrO-5,6-Re2O3) fine particles with uniform density is coated on a soft base, e.g. of polyester resin, polypropylene, polycarbonate, ete.. The first magnetic particles layer contg. the strontium-ferrite fine particles is formed on the soft base and then the second magnetic particles layer contg. the same strontium-ferrite fine particles is formed on the first magnetic particles layer by orienting the strontium-ferrite fine particles to a fixed direction in a magnetic field.
|
