Security element comprising a partial magnetic layer
A technology for safety components and magnetic layers, applied in lamination, coating, household appliances, etc., can solve problems such as aluminum corrosion, and achieve the effect of reducing manufacturing costs
Inactive Publication Date: 2010-09-22
LEONHARD KURZ GMBH & CO KG
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- Abstract
- Description
- Claims
- Application Information
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Embodiment Construction
[0053] figure 1 A partial view of the roll-to-roll manufacturing process is schematically depicted, by means of which a film with a security element with a partial magnetic layer is produced.
[0054] figure 1 One printing station 10 , one exposure station 20 , three rollers 31 , 32 , 33 and one turning roller 34 are shown. A film body 51 is conveyed to the printing station 10 . The film body 51 processed by the printing station 10 is conveyed as a film 52 via the deflection roller 34 to the roller pair 31 and 32, which transfers one from the storage roller (at figure 1 The transfer film 41 unwound on (not shown in) is applied to the film 52. A thin film 53 is thus obtained. The film 53 processed by the exposure station 20 is conveyed as a film 54 to the roller 33 , where a support film 53 is removed from the film 54 and a film 55 remains as a residual film.
[0055] In the simplest case, the film body 51 can be a support film. Such a carrier film preferably consists of ...
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Abstract
The invention relates to a security element, particularly a security thread for value documents such a banknotes, credit cards, identification papers, or tickets, comprising at least one partial magnetic layer for storing a coded piece of information. Also disclosed is a method for producing said security element. According to the invention, an adhesive layer (11s) made of a radiation crosslinking adhesive is applied to a first film member (51), said adhesive layer is applied to the base film from the radiation crosslinking adhesive in a structured pattern-like shape and / or is irradiated in apattern-like manner such that the adhesive layer hardens so as to form a pattern-like structure. A transfer film (41) encompassing a support film and a magnetic layer that faces the adhesive layer isapplied to the adhesive layer, and the support film is removed from the film member comprising the first film member, the adhesive layer, and the magnetic layer. The magnetic layer remains on the first film member in a first structured pattern-like zone while said magnetic layer remains on the support film in a second structured pattern-like zone and is removed from the first film member along with the support film.
Description
technical field [0001] The invention relates to a security element, in particular a security thread for valuable documents such as currency, credit cards, certificates or tickets, which security element has at least one partial magnetic layer for storing coded information; the invention also relates to a A method of manufacturing the security element. Background technique [0002] The magnetic layer used to store information can be soft magnetic, hard magnetic or paramagnetic. In order to obtain high data security, it is necessary to carry out high definition of the magnetic layer ( ) and structuring of register accuracy. [0003] The magnetic layer can be designed with magnetic particles, preferably iron oxide pigments as described in DE-PS 697 02 321 T2 or amorphous metallic glasses as described in US-PS 4 960 651 . [0004] In DE-PS 695 05 539 T2 it is proposed to deposit a magnetic metal on a solvent-pretreated elastic substrate, cobalt with or without nickel, iron a...
Claims
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IPC IPC(8): B32B37/00B32B7/14B41M5/00B41M3/12B42D15/10B29C65/14B29C65/16B42D15/00D21H21/48
CPCB32B7/14B32B2425/00D21H21/48Y10T428/24802B32B37/14B82Y30/00B32B2554/00B32B2255/205B32B2255/10B32B2311/24B32B2307/702
Inventor L·布雷姆
Owner LEONHARD KURZ GMBH & CO KG