Security element and method for the production of a security element

A security element, optical security technology, applied in the field of color material layer, can solve the problem of complex three thin layers

Active Publication Date: 2018-02-16
TESA SCRIBOS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the complex and therefore expensive method of producing three thin layers by vapor deposition and sputtering is disadvantageous

Method used

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  • Security element and method for the production of a security element
  • Security element and method for the production of a security element
  • Security element and method for the production of a security element

Examples

Experimental program
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Embodiment Construction

[0023] The security element 10 is, for example, a label of a product or a packaging applied for the purpose of anti-counterfeiting protection. To produce the security element 10 , first a transparent polymer film 11 made of plastic is provided, which represents the main part of the thickness of the security element 10 and serves as substrate and / or carrier film. Then, by means of digital printing, the polymer film 11 is embossed with a colorant 13 comprising metallic pigments 12, in particular aluminum pigments, and / or a lacquer to produce a colorant or lacquer layer 14 comprising metallic pigments 12 . Metallic pigments 12 form the largest proportion of additives in colorant layer 14 . layer thickness in figure 1 are not shown to scale, on the contrary, the thickness of the film 11 is significantly greater than the thickness of the colorant layer 14 figure 1 shown in . The metallic pigments 12 allow for the formation of an optically perceivable reflective colorant layer 1...

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Abstract

The invention relates to a security element (10) with an optical security feature which is applied by means of laser lithography, comprising a transparent polymer film (11) and a colour layer (14) which is applied directly or indirectly to a film, characterised in that the colour layer contains metal pigments (12).

Description

technical field [0001] The invention relates to a security element with optical security features introduced by means of laser etching, comprising a transparent polymer film and a colorant layer applied directly or indirectly to the polymer film. Background technique [0002] Security elements having transparent films as carrier material are known. They are often used for anti-counterfeit security or anti-counterfeiting protection in the form of adhesive labels with embossed holograms, kinegrams, or other optically variable elements. [0003] In many cases, for this purpose, the film is provided with a relief structure (relief structure) by means of a finely structured embossing tool, or a colorant applied thinly to the film is provided with a relief structure. By means of a subsequent metallization step thereto, this structure can be observed in reflection as a phase-modulating structure. It is also possible to first metallize the film, or the film with a suitable lacquer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/373B42D25/41B42D25/435B42D25/45
CPCB42D25/373B42D25/41B42D25/435B42D25/45
Inventor K·舒尔特-维京S·博格斯穆勒S·诺艾特
Owner TESA SCRIBOS
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