Security image coated with a single coating having visually...

Details Security image coated with a single coating having visually... Security image coated with a single coating having visually...

H - Electricity

01

F

H01F 10/10 (2006.01) H01F 10/18 (2006.01) H01F 10/187 (2006.01)

Patent

CA 2643999

A security image is disclosed which is formed from flakes having a first color with flakes having a second different color mixed within a carrier uniformly. The flakes having the second color are magnetically orientable and the flakes having the first color are non-magnetic and do not align or orient in a magnetic field. By exposing at least a single coated region to a magnetic field that is substantially orthogonal to the substrate upon which the coating of flakes is coated, a visible region having the first color is provided as the magnetic flakes are upstanding and the non-magnetic flakes are lying flat upon the substrate. In another region where there is no field applied a visible region having third perceived color different from, however formed from the first color or the second color is seen.

Image de sécurité à écailles d'une première couleur et écailles d'une seconde couleur différente mélangés uniformément dans un vecteur. Les écailles de la seconde couleur sont magnétiquement orientables et les autres sont non magnétiques, ne s'alignant ou ne s'orientant pas dans un champ magnétique. L'exposition d'au moins une seule région revêtue à un champ magnétique sensiblement orthogonal au substrat sur lequel le revêtement d'écailles est appliqué permet d'établir une région visible ayant la première couleur alors que les écailles se tiennent à la verticale et que les écailles non magnétiques sont à plat sur le substrat. Dans une autre région où aucun champ n'est appliqué, une région visible à troisième couleur perçue différente des première et seconde couleurs, mais formées à partir de l'une ou l'autre de ces couleurs, est vue.

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