Abstract:
Procedimiento para la producción de un cuerpo multicapa con una primera capa formada por estructuras microópticas, que cubre al menos en parte una o varias capas adicionales, que presentan zonas de imagen y/o zonas de efecto que configuran un efecto óptico, caracterizado por que las estructuras microópticas (6a, 6b, 54g, 54h, 54m) se aplican mediante impresión en talla dulce sobre la capa situada debajo de la primera capa o se introducen en la primera capa, aplicándose las estructuras microópticas (6a, 6b, 54g, 54h, 54m) así como las zonas de imagen (45) y/o zonas de efecto (41l, 42l, 42o, 43, 54t) con la misma plancha de impresión y/o la misma máquina de impresión en registro.
Abstract:
The invention relates to a multilayer body (2) having a transparent first layer (13). In a first region (31) of the transparent first layer (13) a plurality of microlenses (21) are moulded, which are arranged in accordance with a microlens grid. Furthermore, the multilayer body (2) has a second layer (12) arranged beneath the first layer (13) and in a fixed position with respect to the first layer (13), the second layer having a plurality of microimages (22) which, in order to generate first optically variable information, are arranged in accordance with a microimage grid and in each case overlapping at least in areas with one of the microlenses (21) of the microlens grid. The grid widths (41, 42) of the microimage grid and the microlens grid are each less than 300 µm in at least one direction in space.
Abstract:
The invention provides a large number of possibilities, by which it can be prevented that in the case of a multilayer body having electrically conductive elements, which are invisible to the naked eye, the electrically conductive elements reflect back light in an excessive manner. In this case, a suitable surface roughness can be selected for the electrically conductive elements, or at least one additional layer (54) can be provided on the electrically conductive elements (51l).
Abstract:
The invention relates to a security element (1), in particular a value document, and to a method for producing same. The security element has a patterned region (21) consisting of one or more design elements (22), the shape of said patterned region providing a first item of visually perceptible information. Said element also has a background region (20) which surrounds one or more design elements of the patterned region at least in some regions. The security element (1) has an opaque reflective layer, which is not provided in the background region (20) and is provided in the patterned region (21) in first zones (31), but not in second zones. The first zones (31) are mutually spaced by less than 300 mum and have a smallest dimension of less than 300 mum.
Abstract:
The invention relates to a film element (1') for protecting an object (10), in particular a valuable document, a data carrier or a product. Said film element has a diffractive relief structure that produces an optically variable effect (5) and has a base form (2) with an outline when viewed perpendicular to the film plane. Patterned recesses (3, 3') are provided on at least 25% of the outline of the base form on the periphery of the film element, said recesses forming information superimposed on the base form and providing notches (4, 4') on the periphery of the film element.
Abstract:
The invention relates to a security document (10) comprising a carrier substrate (1) and at least one first film element (2) that is fixed to the carrier substrate (1) and which has a first optically variable effect produced by a diffractive first relief structure. Said security document (10) also comprises at least one first printed ink layer (5) that is applied, at least in parts, to the at least one first film element, and at least one second film element (3). The invention also relates to a method for producing said type of security document (10).
Abstract:
The invention relates to a transfer film, in particular a hot embossing film, comprising a support film (18) and a transfer layer with a structured surface (14) that is applied to the support film (18) and can be detached from the latter (18). According to the invention, the support film (18) comprises a master relief structure (18m) on the side facing the structured layer (14) and the latter (14) comprises a relief structure (14o) that complements the master relief structure of the support film (18) on the side facing said film (18). The invention also relates to a method for producing the transfer film and to a multi-layered body (1) that is formed using said structured layer (14).
Abstract:
The invention relates to a method for producing a security element and a transfer film. The transfer film comprises a base film (10) comprising a first carrier film (11) and single or multi-ply decal layer. A first adhesive layer (30) and a second carrier film (40) are applied to the surface of the first carrier film (11) facing away from the decal layer, such that the first adhesive layer (30) is disposed between the first carrier film (11) and the second carrier film (40). The first adhesive layer (30) is activated in a first area (31) covering at least one first partial area (21) of the base film (10), and the first adhesive layer is not activated, not provided, only partially provided, or deactivated in a second area (32) adjacent to said first area (31). The first carrier film (11) is then at least partially separated along the boundary line defining the at least one first partial area (21) and separating the at least one first partial area (21) from a second partial area (22) of the base film (10). A second part of the base film (10) comprising the second partial area (22) is pulled off of the second carrier film (40), wherein the base film (10) adheres to the second carrier film (40) in the at least one first partial area (21) due to the activated first adhesive layer, and a first part of the base film (10) comprising the at least one first partial area (21) remains on the second carrier film (40).
Abstract:
Various methods are described for producing multi-layer bodies having at least one partially formed functional layer and at least one further partially formed layer, and the multi-layer bodies which are produced in this way are also described. The multi-layer body has at least one partially formed functional layer in register with at least one further partially formed layer which preferably complement one another to form a geometric, alphanumeric, visual, graphic or figurative coloured design.