Security paper

Details Security paper Security paper

B - Operations, Transporting

42

D

283/20

B42D 15/00 (2006.01) D21H 21/42 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2018127

ABSTRACT: SECURITY PAPER This invention is concerned with security paper for bank notes, cheques and like documents in a security strip of enhanced security which is more difficult to counterfeit than the present bank notes containing window threads. Security papers according to the invention comprise at least one elongated security element which security element is partially embedded within said paper with portions thereof being exposed at the surface of the paper at spaced intervals along the length of the security element at windows in the paper, said security element being visually detectable in transmitted light and being visible in the windows of the paper in reflected light, wherein the said security element comprises a plurality of layers including a support layer and metallic regions such that when the exposed portions of the security element are viewed in reflected light there is visible to the unaided eye in each window at least two metallic areas which form repeating patterns along the length of the element, with the said metallic areas being of different colour.

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