The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.

A method of manufacturing a magnetic member comprises preparing a base member, which have a front surface and a back surface, and wherein an anchor coat layer is formed on the front surface, and forming a composite magnetic layer on the anchor coat layer.

Printable magnetic receptive composite sheets are made by calendering a thin layer of a magnetic composition and bonding it to a top printable layer on one or both sides of the magnetic layer wherein the calendered layer has a thickness up to 10 mils.

The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.

The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.

A paste for an NFC magnetic sheet is provided, which comprises: a magnetic powder; an organic carrier; and a nanoscale alumina powder; wherein a weight ratio of the nanoscale alumina powder to the magnetic powder ranges from about 0.0005 to about 0.005. A method of preparing the paste for the NFC magnetic sheet and an NFC magnetic sheet are also provided.