A production method for a polymer laminate with at least one diffraction element is simplified. The method includes the following method steps: providing a diffraction element material with a carrier film and a light-sensitive layer located thereon, and also at least one polymer layer; producing the at least one diffraction element by creating a light-diffracting layer from the light-sensitive layer, in that a light-diffracting pattern is created in the light-sensitive layer of the at least one diffraction element material; bringing together the at least one diffraction element and at least one polymer layer to form a stack of layers; and surface bonding the at least one diffraction element and the at least one polymer layer 170 by way of a lamination process, thereby forming the polymer laminate.

A method for producing a security element, wherein a base film is provided, which has a first carrier film and a single- or multilayered decorative ply, wherein a first adhesive layer is applied to a second carrier film and a second adhesive layer is applied to the surface of the first carrier film facing away from the decorative ply or wherein the second adhesive layer is applied to the surface of the first carrier film facing away from the decorative ply and the first adhesive layer is applied to the second adhesive layer, and wherein the second carrier film is applied to the first carrier film such that the first adhesive layer and the second adhesive layer are arranged between the first carrier film and the second carrier film.

A method for producing a security element, wherein a base film is provided, which has a first carrier film and a single- or multilayered decorative ply, wherein a first adhesive layer is applied to a second carrier film and a second adhesive layer is applied to the surface of the first carrier film facing away from the decorative ply or wherein the second adhesive layer is applied to the surface of the first carrier film facing away from the decorative ply and the first adhesive layer is applied to the second adhesive layer, and wherein the second carrier film is applied to the first carrier film such that the first adhesive layer and the second adhesive layer are arranged between the first carrier film and the second carrier film.

A security inlay having optically recognizable characters for an identity document comprises a first transparent layer and a second transparent layer. The first and second transparent layers are connected to one another. A first portion of the optically recognizable characters is formed by blackened sections in at least one of the layers. A second portion of the optically recognizable characters is formed by the color coating. The first and second portions are arranged and configured to reflect visible light. Infrared light is reflected by the first portion of the optical characters. During irradiation with visible light, the security inlay thus shows first graphical information formed jointly by the first portion of the optically recognizable characters and the second portion of the optically recognizable characters. Under irradiation with infrared light, the security inlay shows second graphical information formed by the first portion of the optical characters.

A security inlay having optically recognizable characters for an identity document comprises a first transparent layer and a second transparent layer. The first and second transparent layers are connected to one another. A first portion of the optically recognizable characters is formed by blackened sections in at least one of the layers. A second portion of the optically recognizable characters is formed by the color coating. The first and second portions are arranged and configured to reflect visible light. Infrared light is reflected by the first portion of the optical characters. During irradiation with visible light, the security inlay thus shows first graphical information formed jointly by the first portion of the optically recognizable characters and the second portion of the optically recognizable characters. Under irradiation with infrared light, the security inlay shows second graphical information formed by the first portion of the optical characters.

The present invention relates to a metal card manufacturing method including the steps of: preparing a metal sheet having a given size capable of accommodating a plurality of individual cards; forming holes on at least one or more edges of stacked sheets formed by stacking a plurality of sheets inclusive of adhesive sheets and an inlay sheet on which antenna coils are printed, the plurality of sheets having the same size capable of accommodating the plurality of individual cards as each other; fitting the holes formed on the stacked sheets to pins located on a loading plate; placing the metal sheet on top of the stacked sheets; forming a metal card sheet through lamination among the metal sheet and the stacked sheets; and cutting the metal card sheet along individual card outlines of the plurality of individual cards.

An object of the present invention is to provide a thin volume hologram sheet to be embedded sufficiently resistant to a mechanical stress such as a stress including a tensile stress, a shear stress and a compression stress at the time of processing even under a heating condition, a forgery prevention paper and a card using the same. The object is achieved by providing a volume hologram sheet to be embedded comprising a volume hologram layer, and a substrate disposed only on one side surface of the volume hologram layer using an adhesion means, wherein a peeling strength of the volume hologram layer and the substrate is 25 gf/25 mm or more.

An object of the present invention is to provide a thin volume hologram sheet to be embedded sufficiently resistant to a mechanical stress such as a stress including a tensile stress, a shear stress and a compression stress at the time of processing even under a heating condition, a forgery prevention paper and a card using the same. The object is achieved by providing a volume hologram sheet to be embedded comprising a volume hologram layer, and a substrate disposed only on one side surface of the volume hologram layer using an adhesion means, wherein a peeling strength of the volume hologram layer and the substrate is 25 gf/25 mm or more.

To simplify the production of a security element 300 with a first security feature 310 and a second security feature 320, the following method is proposed: (a) Provision of a light-sensitive film 200, which comprises at least one carrier layer 210 and in surface-to-surface contact with this a light-sensitive function layer 220; (b) Exposure of the light-sensitive film 200 at least area by area, with the formation of a pattern in the light-sensitive function layer 220, wherein the security element (300) is formed with a first security feature (310); (b′) Optional fixing of the exposed light-sensitive film; and (c) Printing of the carrier layer 210 and, as appropriate, of the protective layer 230, wherein a second security feature 320 is produced.

The present disclosure is directed towards a security sheet (11) for displaying data (16). The security sheet (11) comprises a data sheet (15) for displaying data (16) and an attachment layer (17). The attachment layer (17) comprises a plurality of tabs (25) extending from an attachment portion (26) for attaching the data sheet (15) into a security document (10). The plurality of tabs (25) are attached to the data sheet (15) such that the attachment layer (17) is attached to and extends from the data sheet (15). The attachment layer (17) can comprise a textile.