Abstract: A method is for producing a security feature for a data carrier in the form of a card, which has the following steps: providing at least one sheet material and at least one adhesive; bringing the sheet material together with the adhesive to form a mixture; disintegrating the mixture to form a multiplicity of scraps; applying at least one layer of the multiplicity of scraps on a lamination plate; laminating the layer in order to form at least one foil as a security feature for the data carrier in the form of a card, the foil having an overlapping inhomogeneous distribution of the scraps. A data carrier is in the form of a card having such a security feature.

Abstract: A security device has a foil carrier having opposing main surfaces and has, arranged on the opposing main surfaces of the foil carrier, two machine-readable feature regions that include in each case an IR-absorbing substance, at least one of the machine-readable feature regions including an IR-absorbing substance having an absorption maximum between 800 nm and 1000 nm.

Abstract: The invention relates to a security element having an optically variable security feature and a machine-readable security feature, which are at least partially arranged one above the other, wherein the security element is transparent or translucent in the region of the visible light and the machine-readable security feature forms a code. The machine-readable security feature is a combination of at least two different substances, a first IR substance and a second IR substance, wherein the first IR substance is arranged in a first areal region of the security element and the second IR substance is arranged in a second areal region of the security element, and wherein the first IR substance absorbs in a first IR wavelength region and the second IR substance absorbs in a second IR wavelength region. The invention also relates to a value document which has such a security element.

Abstract: The invention relates to a security element having an optically variable security feature and a machine-readable security feature, which are at least partially arranged one above the other, wherein the security element is transparent or translucent in the region of the visible light and the machine-readable security feature forms a code. The machine-readable security feature is a combination of at least two different substances, a first IR substance and a second IR substance, wherein the first IR substance is arranged in a first areal region of the security element and the second IR substance is arranged in a second areal region of the security element, and wherein the first IR substance absorbs in a first IR wavelength region and the second IR substance absorbs in a second IR wavelength region. The invention also relates to a value document which has such a security element.