A security document including a metal layer comprising an arrangement of diffractive nanostructures arranged periodically in the metal layer to form a diffractive holographic structure forming an arrangement of pixels each comprising a plurality of sub-pixels of distinct colors, a lenticular array comprising convergent lenses positioned facing the metal layer, and a support layer on which the metal layer is disposed so that the metal layer is sandwiched between the lenticular array and the support layer. The metal layer includes perforations formed by focusing laser radiation through the lenticular array on the metal layer, the perforations including at least one group of perforations produced by focusing the laser radiation at a respective angle of incidence to reveal a corresponding personalized image when the security document is observed at this angle of incidence.

A sheet material having a security device applied over a paper machine made or soft-edged through-hole and a method for preparing such a sheet material is provided. The through-hole(s) is formed in a forming fibrous web before it becomes sufficiently consolidated and then the security device is applied onto the fibrous web and preferably over the through-hole(s) at or near a couch roll or similar tool of a paper machine when the fibrous web constitutes a sufficiently consolidated, fully formed wet web. Moreover, papers made in accordance with the inventive method, when subjected to the Circulation Simulation Test, showed minimal damage at the paper/security device interface. Further, the surface-applied security devices showed acceptable levels of intaglio ink adhesion, and the papers had higher cross-direction (CD) tensile strength and much less show-through on opposing sides thereof.

A security document has a security substrate, a security device and a structural weakness element, wherein the security device is coupled to the security substrate, wherein the structural weakness element is integrated with at least one of the security substrate or the security device, the structural weakness element defining an anti-harvesting area and a bulk area, and wherein the anti-harvesting area has one or more of structural fidelity or optical fidelity with the bulk area.

A security document has a security substrate, a security device and a structural weakness element, wherein the security device is coupled to the security substrate, wherein the structural weakness element is integrated with at least one of the security substrate or the security device, the structural weakness element defining an anti-harvesting area and a bulk area, and wherein the anti-harvesting area has one or more of structural fidelity or optical fidelity with the bulk area.

A security document having a stack of layers including a matrix of coloured sub-pixels, an opaque layer with a white appearance above the matrix of coloured sub-pixels, the opaque layer with a white appearance having perforations facing sub-pixels of the matrix of coloured sub-pixels such that, when the device is observed from above, a coloured image appears.

A security document having a stack of layers including a matrix of coloured sub-pixels, an opaque layer with a white appearance above the matrix of coloured sub-pixels, the opaque layer with a white appearance having perforations facing sub-pixels of the matrix of coloured sub-pixels such that, when the device is observed from above, a coloured image appears.

A security document is disclosed to include an image area provided on a front side of the document that includes image content, an information area provided on the front side that includes informational content, and a security feature including a pattern of perforations provided in an overlapping relationship with the image area and the information area so as to simultaneously bind and secure the image content with the informational content.

A security document is disclosed to include an image area provided on a front side of the document that includes image content, an information area provided on the front side that includes informational content, and a security feature including a pattern of perforations provided in an overlapping relationship with the image area and the information area so as to simultaneously bind and secure the image content with the informational content.

Metal transaction cards with removable indicia are provided. In some approaches, a transaction card may include a metal body having a first main side and a second main side, and an identification chip coupled to the first main side of the metal body. The transaction card may further include an exterior layer along the second main side, the exterior layer containing identifying indicia, wherein at least a portion of the exterior layer is removable from the second main side by at least one of: a set of perforations through the exterior layer, and a channel provided along an outer edge of the second main side.

Metal transaction cards with removable indicia are provided. In some approaches, a transaction card may include a metal body having a first main side and a second main side, and an identification chip coupled to the first main side of the metal body. The transaction card may further include an exterior layer along the second main side, the exterior layer containing identifying indicia, wherein at least a portion of the exterior layer is removable from the second main side by at least one of: a set of perforations through the exterior layer, and a channel provided along an outer edge of the second main side.