Security Document and Method of Making Same
Security document, such as a banknote, a value paper, an identification document, an access card, a security label or packaging, comprising an imprint-able substrate, chosen from the group of papers, cardboards, textiles and polymer sheets, as a first constituting part, and at least a second constituting part, chosen from the group of printing inks, security threads, windows, fibers, planchettes, foils, and decals, wherein a same security element is contained at least a first time in or on one of its constituting parts, and at least a second time in or on another of its constituting parts. Method for producing a security document, characterized in that a same security element is applied at least a first time in a first step to one constituting part of said document, and at least a second time in a second step to another constituting part of said document.
1 . A security document comprising
a substrate as a first constituting part, and
at least one other constituting part, and
a first security element being applied to or comprised in one of the constituting parts, said security element having identifiable properties, the presence of said properties serving as a first authenticating feature for said security document, wherein at least a further security element having substantially the same identifiable properties is applied to or comprised in at least another of the constituting parts as a second security feature, wherein said first and second security element are chosen from the group consisting of optically variable pigments, multi-layer thin-film interference pigments, liquid-crystal pigments, holographic pigments, interference-coated particles, thermochromic pigments, photochromic pigments, luminescent compounds, infrared-absorbing compounds, UV-absorbing compounds, magnetic compounds, micro-engraved or micro-textured flake pigments, and forensic marking compounds, and wherein said first and second security element are applied or added to the constituting parts in a manner to allow a comparison of their properties as a third security feature.
2 . A security document according to claim 1 , wherein said first and the further security elements are materially the same.
3 . A security document according to claim 1 , wherein said security document is selected from the group consisting of a banknote, a value paper, an identification document, an access card, a security label and a packaging.
4 . A security document according to claim 1 , wherein said substrate is chosen from the group consisting of papers, cardboards, textiles, foils, printing layers and polymer sheets.
5 . A security document according to claim 1 , wherein said other constituting parts are chosen from the group consisting of printing inks, security threads, windows, fibers, planchettes, foils and decals.
6 . A security document according to claim 1 , wherein at least one of said security elements is contained in an ink or coating.
7 . A security document according to claim 1 , wherein at least one of said security elements is contained in or applied to the substrate or one of the constituents thereof.
8 . A security document according to claim 1 , wherein said substrate comprises a structure of alternating polymer and coating layers.
9 . A security document according to claim 1 , wherein said security elements are chosen from the group comprising covert security elements.
10 . A method for producing a security document comprising a substrate as a first constituting part and at least another constituting part, said method comprising the steps of a) applying or adding a first security element to one of said constituting parts, said security element having identifiable properties, the presence of said properties serving as a first authenticating feature for said security document, b) applying or adding at least a further security element having substantially the same identifiable properties to another of the constituting parts as a second security feature, wherein said first and further security elements are chosen from the group consisting of optically variable pigments, multi-layer thin-film interference pigments, liquid-crystal pigments, holographic pigments, interference-coated particles, thermochromic pigments, photochromic pigments, luminescent compounds, infrared-absorbing compounds, UV-absorbing compounds, magnetic compounds, micro-engraved or micro-textured flake pigments, and forensic marking compounds, and wherein said security elements are applied or added to the constituting parts in a manner to allow a comparison of their properties as a third security feature.
11 . A method according to claim 10 , wherein materially the same security element is applied or added to two or more different constituting parts of said security document.
12 . A method according to claim 10 , wherein at least one of said security elements is applied to a constituting part by a coating or printing procedure.