| abstract |
Composition for application to a substrate, to generate a pigmented magnetic layer on and / or integral with said substrate, the composition comprising: (1) particles each comprising: (i) a core consisting essentially of a magnetic material; (ii) a coating that at least substantially envelops the core to cause said particles, when applied to a substrate, to form a pigmented magnetic layer having an L value of the Hunter Lab color scale of at least 50, in the that the coating of each particle is opaque enough to hide a color of said core, or any additional coating if present below said coating; and (iii) optionally one or more additional coatings each disposed between said core and said coating and / or at least substantially wrapping said coating; (2) optionally a liquid phase, which if present retains said particles at least partially in suspension; and (3) optionally one or more other magnetic or non-magnetic toners or inks. |