Production of security document having a metallic security...

Details Production of security document having a metallic security... Production of security document having a metallic security...

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B41M 3/14 (2006.01)

Patent

CA 2226559

A method of making a reflective security feature on security paper comprises spraying metal onto the surface of the paper, whereby to produce an extensive region (9) of sprayed metal on the surface of the paper (2); and crushing, burnishing or otherwise treating the surface of the sprayed metal to convert it to a more specularly reflective surface, which may be formed into a relief pattern.

Ce procédé de réalisation, sur un papier de sécurité, d'une caractéristique de sécurité qui soit réfléchissante, consiste à pulvériser du métal sur la surface du papier (2), afin de produire sur celle-ci une région (9) étendue de métal pulvérisé, puis à écraser, brunir ou traiter d'une autre manière ladite surface de métal, afin de la transformer en une surface plus réfléchissante, du type miroitante, à laquelle on peut donner une forme pour obtenir un motif en relief.

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