Abstract:
A method for producing a multilayer body with the steps of a) applying a first varnish layer made of a water-based photoresist to a surface of a base body; b) exposing the first varnish layer in a first region, wherein the first varnish layer is not exposed in a second region; c) removing the first varnish layer in the second region.
Abstract:
The present invention provides an improved security document having a “see-through” security feature that protects a window of the security document in which personalization information may be displayed, such as an image of the authorized document holder. The “see-through” security feature is provided by front and back side images, such as text (e.g. micro-text or encoded indicia), graphics or other image type, that may be laser marked onto the document substrate from a front side thereof through the window to a back side of the window. At least a part of the front image and at least a part of the back image are in front-to-back registration in window, the registration of the images being subject to verification by suitable inspection of the window. The front and back images may be partial images of a composite image when joined together at a juncture with the front-to- back registration of the partial images located at the juncture so that the images together have an appearance of the composite image in the window. Ahernatively, at least a part of the first and second images may be identical with the front-to-back registration of the images located at least one of the identical parts so that the first and second images have an appearance in the window of a single image at those identical parts of the front-to-back registration.
Abstract:
The invention relates to a method for authenticating an optically variable security element (1), in particular a diffractive security element, with the steps: a) capturing an image sequence with at least one individual image of the security element (1) by means of a sensor (31), in particular a hand-held device (3), preferably a smartphone, tablet or a PDA; b) checking whether at least one predetermined item of optical information is present in at least one individual image of the image sequence.
Abstract:
A tamper-evident adhesive security tape or label includes a flexible backing substrate based on a flexible polymeric film. One surface of the backing substrate bears an embossed varnish layer, a semitransparent metal layer and/or a high refractive index layer, a partial release varnish layer, one or more varnish layers having optical properties, and a self-adhesive coating. In the regions not coated with the release varnish layer, the adhesion of the layer to the layer and the adhesion of the layer to the article to be secured are greater than the adhesion of the layer to the layer, or the adhesion of the layer to the layer and the adhesion of the layer to the layer are greater than the adhesion of the layer to the article to be secured.
Abstract:
The present invention relates to a method of securement of a security document comprising providing a security document to be secured comprising a support on which are inscribed personalization data, an optical security component covering at least a portion of the personalization data and an adhesive layer positioned between the support and the optical security component, and applying a transparent anti-adhesive layer on the optical security component.
Abstract:
A method and system is provided for providing a variable data guilloché shaped pattern comprised of variable data differential line pattern fonts comprising decodable template symbols which are capable of being selectively assembled into a predetermined variable data code. The code representations are embedded in the guilloché pattern amongst a plurality of unvaried standard base patterns. The representation can be decoded with a digital scan capable of identifying the embedded patterns and communicated it to a user for verifying a document containing the code.
Abstract:
Personalizing a multipage security document by placing a laser-alterable ink layer on a personalization area of an edge of each of the sequence of pages. The method includes revealing a portion of the personalization area of each of the sequence of pages relative to a pages above said each of the sequence of pages such that the personalization portion of each two consecutive pages in said sequence of pages are located adjacent to one another thereby producing a two-dimensional multi-page personalization section, and creating a pattern on the two-dimensional multi-page personalization section by altering the inked personalization area in the revealed portion of each page of said sequence of pages by exposing said revealed portions to a laser, such that a pattern is visible when the revealed portions of a sequence of pages are viewed simultaneously.
Abstract:
A method for producing a multilayer body, with the steps: a) providing a first printed layer; b) partially applying a second printed layer to the first printed layer; c) structuring the first printed layer using the second printed layer as a mask. A multilayer body obtainable in this way and a security document with such a multilayer body.
Abstract:
Disclosed is a method for manufacturing a multilayer data medium having reflecting metallised inscriptions (23) visible from at least one outer surface (11). A basic pattern (24) is imprinted onto a transparent impression layer (21), the pattern being selected so as to be able to receive the inscriptions (23), to be transparent and to have a surface tension of more than 40 dynes/cm and a smooth surface condition with specular reflection of more than 50% measured according to the ISO 2813 standard at an angle of 60°, and no glass-transition temperature in the rolling temperature range; then the inscriptions (23) are imprinted in contact with the basic pattern (24), and then hot rolling under pressure of a stack including the impression layer (21) is carried out.
Abstract:
The invention concerns a process for producing a film element having mutually registered metallic layers (11, 16) and a film element which can be produced by such a process. A first metallic layer (11) provided on a first surface of a flexible single-layer or multi-layer carrier film (10) and a masking layer (13) provided on the second surface of the carrier film (10), opposite to the first surface, are structured in accurate register relationship with each other by means of mutually synchronised structuring procedures. After structuring of the first metallic layer (11) and the masking layer (13) one or more further layers are applied to the first metallic layer (11). Applied to the one or more further layers (15) is a second metallic layer (16) to which a first photoactivatable layer (17) is applied. The first photoactivatable layer (17) is structured by means of trans-exposure through the masking layer (13), the first metallic layer, the one or more further layers and the second metallic layer (16) from the side of the masking layer (13) by means of electromagnetic radiation of a wavelength to which the first photoactivatable layer (17) is sensitive, or the first photoactivatable layer is exposed controlledly through the masking layer from the side of the film body that is opposite to the masking layer.