The present invention particularly relates to a method for physical vacuum deposition of a coating (R) comprising at least one material (M) on at least a portion of a front face (10) of a support (1), said at least one material (M) originating from an evaporation source or an atomisation source (2), wherein:—use is made of a support (1), at least a portion of the front face (10) of which is smooth, that is to say, does not have any roughness and/or reliefs and/or recesses;—said vacuum deposition is carried out while varying the thickness distribution of the material (M) on said front face (10), that is, while progressively varying the thickness deposited, from a central region (11) in the direction of at least one lateral region (12) contiguous to the central region (11), without modifying the position of the evaporation source or atomisation source (2) of the material particles (M).

The present invention particularly relates to a method for physical vacuum deposition of a coating (R) comprising at least one material (M) on at least a portion of a front face (10) of a support (1), said at least one material (M) originating from an evaporation source or an atomisation source (2), wherein:—use is made of a support (1), at least a portion of the front face (10) of which is smooth, that is to say, does not have any roughness and/or reliefs and/or recesses;—said vacuum deposition is carried out while varying the thickness distribution of the material (M) on said front face (10), that is, while progressively varying the thickness deposited, from a central region (11) in the direction of at least one lateral region (12) contiguous to the central region (11), without modifying the position of the evaporation source or atomisation source (2) of the material particles (M).

Apparatuses of a security device with chaosmetric patterns are disclosed. In one aspect, embodiments of the present disclosure include a security device having a physical surface having formed thereon a composite pattern. The composite pattern can be created from overlap of the imprinting of a first halftone pattern and a second halftone pattern. The first halftone pattern can be created from a first basic building block which forms chaosmetric artifacts in the physical surface upon printing.

The invention relates to a device for producing security elements (03) on a substrate (02), said device having a first printing couple (21; 22), by means of which substrate (02) being conveyed along a transport path is and/or can be printed with a plurality of first print image elements (12) spaced apart from one another using a first coating medium (11) that contains magnetic particles; a first magnetic cylinder (41), arranged downstream of the first printing couple (21; 22) in the transport path and comprising magnetic elements (43) on its outer circumference; a second magnetic cylinder (42), arranged downstream of the first magnetic cylinder (41) in the transport path and likewise comprising magnetic elements (43) on its outer circumference; and a drying and/or curing device (52), associated with or positioned downstream of the second magnetic cylinder (42) in the transport path, by means of which at least the coating medium (13) of a plurality of second print image elements (14), printed onto the substrate (02) and spaced apart from one another, is and/or can be dried and/or cured at least superficially and/or at least each partially, wherein in the transport path between the first and the second magnetic cylinder (41; 42) a second printing couple (31; 32) is provided, by means of which the substrate (02) is and/or can be printed with the spaced-apart second print image elements (14; 12) using the second coating medium (13) that contains magnetic particles, and wherein a drying and/or curing device (51) positioned upstream of the second printing couple (31; 32) is associated with or positioned downstream of the first magnetic cylinder (41) in the transport path, by means of which device the coating medium (11) containing magnetic particles of the first print image elements (12) printed by the first printing couple (21; 22) is and/or can be dried and/or cured at least superficially and/or at least each partially.

In some examples, a security element includes a substrate that, on one of its sides, includes at least one security feature extending over a first area, the security feature being configured in the form of a three-dimensional intaglio structure. A first ink group in the security feature includes a plurality of first raised image elements containing intaglio printing ink of the first color, and at least one second ink group in the security feature includes a plurality of raised image elements containing intaglio printing ink of a second color that differs from the first color, and these are provided and arranged offset and spaced apart from one another such that they form an optically variable structure and/or at least some of the mutually adjacent image elements, which differ from one another in the color, occlude and/or expose one another to varying degrees from a varying viewing angles.

In some examples, a security element includes a substrate that, on one of its sides, includes at least one security feature extending over a first area, the security feature being configured in the form of a three-dimensional intaglio structure. A first ink group in the security feature includes a plurality of first raised image elements containing intaglio printing ink of the first color, and at least one second ink group in the security feature includes a plurality of raised image elements containing intaglio printing ink of a second color that differs from the first color, and these are provided and arranged offset and spaced apart from one another such that they form an optically variable structure and/or at least some of the mutually adjacent image elements, which differ from one another in the color, occlude and/or expose one another to varying degrees from a varying viewing angles.

A method for producing a laminated body and a laminating inlay, as well as a laminated body, a laminating inlay and a security document, in particular in the form of a bank card, identity card or credit card, with such a laminated body.

A flat security element with microreflectors arranged as a microreflector pattern in a main plane of the security element. The microreflectors present a motif made up of image points to a viewer. The motif appears for the viewer as lying outside the main plane of the security element. Two of the microreflectors are adjusted in each case to produce one of the image points of the motif appearing for the viewer as lying outside the main plane. The microreflector pattern has several groups of microreflectors. Each of the groups is provided to represent to the viewer a perspective view of the motif after tilting the security element about an axis lying in the main plane. Image points of the motif are shifted by shift ranges of different sizes through the tilting.

Forming a unique stochastically branching pattern includes providing a first fluid between a surface of a first substrate and a surface of a second substrate and introducing a second fluid between the surface of the first substrate and the surface of the second substrate. The second fluid is in direct contact with the first fluid at a formation temperature, and a viscosity of the first fluid at the formation temperature exceeds a viscosity of the second fluid at the formation temperature. The first substrate and the second substrate are separated to yield a unique stochastically branching pattern comprising the first fluid on the surface of the first substrate.

Forming a unique stochastically branching pattern includes providing a first fluid between a surface of a first substrate and a surface of a second substrate and introducing a second fluid between the surface of the first substrate and the surface of the second substrate. The second fluid is in direct contact with the first fluid at a formation temperature, and a viscosity of the first fluid at the formation temperature exceeds a viscosity of the second fluid at the formation temperature. The first substrate and the second substrate are separated to yield a unique stochastically branching pattern comprising the first fluid on the surface of the first substrate.