| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide magnetic inkjet ink not only having sufficient performances as magnetic ink for MICR (Magnetic Ink Character Recognition) system, but also being more excellent in dispersibility and dispersion stability of magnetic particles than a conventional one. <P>SOLUTION: This magnetic inkjet ink is obtained by dispersing magnetic particles, comprising cobalt-manganese-ferrite expressed by formula (1), wherein x and y are numbers satisfying x+y=1 and x/y=0.5 to 0.9, and the average particle diameter ϕ of primary particles of 20-40 nm, in an aqueous dispersant. <P>COPYRIGHT: (C)2013,JPO&INPIT |
