A security feature comprising a transparent colored mirror film (CMF) having a diffuse reflector on one surface and identifying print on another surface in such a way that at least four different colors are produced during use in authentication applications.

A security feature comprising a transparent colored mirror film (CMF) having a diffuse reflector on one surface and identifying print on another surface in such a way that at least four different colors are produced during use in authentication applications.

A polymer substrate for producing polymer papers of value or polymer security papers is described. The polymer substrate may include a polymer carrier layer, at least one security element applied at least one of onto and into the polymer carrier layer, and a primer. The primer may be applied onto at least one of a first substrate side and a second substrate side of the polymer substrate. The primer may be arranged, at least in some sections, between the polymer carrier layer and the at least one security element. Additionally and/or alternatively, the primer may cover at least one of the at least one security element and the polymer carrier layer such that regions of the at least one security element covered by the primer are not as well visible as regions of the at least one security element and/or the polymer carrier layer not covered by the primer.

A polymer substrate for producing polymer papers of value or polymer security papers is described. The polymer substrate may include a polymer carrier layer, at least one security element applied at least one of onto and into the polymer carrier layer, and a primer. The primer may be applied onto at least one of a first substrate side and a second substrate side of the polymer substrate. The primer may be arranged, at least in some sections, between the polymer carrier layer and the at least one security element. Additionally and/or alternatively, the primer may cover at least one of the at least one security element and the polymer carrier layer such that regions of the at least one security element covered by the primer are not as well visible as regions of the at least one security element and/or the polymer carrier layer not covered by the primer.

A method for producing polymer papers of value or polymer security papers is described. The method may include providing a polymer substrate of at least one polymer. The polymer substrate may have a first substrate side and a second substrate side. The method may also include providing a security element that includes a transfer film. The transfer film may include at least one security feature and a detachable carrier film. The method may further include applying the transfer film at least one of onto the first substrate side and onto the second substrate side, connecting the at least one security feature to at least one of the first substrate side and the second substrate side, and removing the detachable carrier film.

A method for producing polymer papers of value or polymer security papers is described. The method may include providing a polymer substrate of at least one polymer. The polymer substrate may have a first substrate side and a second substrate side. The method may also include providing a security element that includes a transfer film. The transfer film may include at least one security feature and a detachable carrier film. The method may further include applying the transfer film at least one of onto the first substrate side and onto the second substrate side, connecting the at least one security feature to at least one of the first substrate side and the second substrate side, and removing the detachable carrier film.

A method and system for authenticating an item includes irradiating the item, the item including a polymer substrate including a polymer material and a doping material and configured to emit a radiation spectrum having a spectral signature in response to the irradiating, the doping material capable of absorbing or scattering radiation at a specific wavelength to generate the spectral signature, detecting the spectral signature, and determining a code associated with the spectral signature.

A method and system for authenticating an item includes irradiating the item, the item including a polymer substrate including a polymer material and a doping material and configured to emit a radiation spectrum having a spectral signature in response to the irradiating, the doping material capable of absorbing or scattering radiation at a specific wavelength to generate the spectral signature, detecting the spectral signature, and determining a code associated with the spectral signature.

A micro-optic security device with zonal color transitions includes a planar array of focusing elements, an image icon layer including a plurality of retaining structures, the plurality of retaining structures defining isolated volumes at a first depth within the image icon layer, a first zone of image icons, the first zone of image icons having a first predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the first predefined subset of the plurality of retaining structures contain cured pigmented material of a first color, and a second zone of image icons, the second zone of image icons including a second predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the second predefined subset of the plurality of retaining structures contain cured pigmented material of a second color, wherein the second color contrasts with the first color.

A micro-optic security device with zonal color transitions includes a planar array of focusing elements, an image icon layer including a plurality of retaining structures, the plurality of retaining structures defining isolated volumes at a first depth within the image icon layer, a first zone of image icons, the first zone of image icons having a first predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the first predefined subset of the plurality of retaining structures contain cured pigmented material of a first color, and a second zone of image icons, the second zone of image icons including a second predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the second predefined subset of the plurality of retaining structures contain cured pigmented material of a second color, wherein the second color contrasts with the first color.