FERROMAGNETIC NANOPARTICLES WITH HIGH MAGNETOCRYSTALLINE ANISOTROPY FOR MICR INK APPLICATIONS

摘要

The ink contains stabilized single crystal nanoparticles, and the magnetic anisotropy value of the magnetic nanoparticles is 2 x 10 ⁴ J / m 3 or more. The magnetic nanoparticles may be ferromagnetic nanoparticles such as FePt. The ink contains a magnetic material that minimizes the size of the particles, and as a result, dispersion stability is obtained in excellent magnetic dyes and especially in water-insoluble ink-jet inks. The smaller size of the magnetic particles of the ink maintains good magnetic properties, reducing the amount of magnetic particles required for the ink.;Inkjet ink, nanoparticle, magnetic material, dispersion stability, anisotropy