| abstract |
The present invention relates to the field of non-spherical magnetic or magnetizable colorant particles and coating compositions containing those colorant particles used to produce an optical effect layer (OEL), wherein the magnetic or magnetizable colorant particles are magnetically oriented . In particular, the present invention provides the use of the optical effect layer (OEL) as a security tool on security documents or security objects. In particular, the present invention relates to a magnetic metal selected from the group consisting of cobalt, iron, gallium, and nickel; a magnetic alloy of iron, manganese, cobalt, nickel, or two or more of the foregoing magnetic alloys A mixture; a magnetic oxide of chromium, manganese, cobalt, iron, nickel or a mixture of two or more of the above magnetic oxides; or a mixture of two or more of the above and having more than 6 μm and less than 13 μm The field of non-spherical magnetic or magnetizable toner particles with a d50 value of the above, the use of the non-spherical magnetic or magnetizable toner particles in a coating composition containing a binder material for generating an optical effect layer (OEL), thereby obtaining OEL, and the method used to produce the OEL. |