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Film and method for producing same

A technology of structure and carrying film, applied in the field of transfer film, to achieve the effect of high flexibility

Active Publication Date: 2014-04-02
LEONHARD KURZ STIFTUNG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if polychromatic diffractive elements or high flexibility in coloring are desired, this technology has certainly reached its limit

Method used

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  • Film and method for producing same
  • Film and method for producing same
  • Film and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] figure 1 Shown is a plan view of a value document according to the invention. In the example shown, this is a banknote 10 with the face value and other printing on the front of the banknote 10 . In addition, the banknote has a rectangular security element 1 below the face value, which is attached to the surface of the banknote paper.

[0070] figure 1 The illustrated security element 1 is a film element having a replica lacquer layer with a diffractive relief structure, for example in the form of a surface hologram, a transparent lacquer layer and a metallic reflective layer.

[0071] figure 2 Shown is safety element 1 along the figure 1 Cross-section of the line II-II. The replica varnish layer 2 can be seen, on the side of which the replica lacquer layer faces the bank note paper 10 , a diffractive relief structure 3 is formed. This is a linear structure in the form of an asymmetric zigzag pattern. The preferred depth of the linear structures, ie the height di...

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PUM

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Abstract

The invention relates to a film (1) and to a method for producing same. The film (1) comprises a translucent replication lacquer layer (2) with a diffractive relief structure (3) formed in a first face (21) of the replication lacquer layer (2), and the film comprises a translucent color lacquer layer (4) which lies on the relief structure (3) and which is formed only in certain regions. The film also comprises a reflective layer (5) which lies on the first face (21) of the replication lacquer layer (2) and which is formed at least in certain regions. The color lacquer layer (4) lies between the replication lacquer layer (2) and the reflective layer (5) in film (1) regions (63) where the color lacquer layer (4) and the reflective layer (5) overlap.

Description

technical field [0001] The invention relates to a film comprising: a replica lacquer layer with a diffractive relief structure formed thereon; and a transparent color lacquer layer, the invention also relates to a security paper, a security paper And a transfer film having such a film, and a method of manufacturing such a film. Background technique [0002] It is known that securities are provided with security elements which exhibit diffractive, visually variable effects in the form of flexible film elements. This can be achieved by surface relief structures which are embossed into the reproduction lacquer layer and whose visibility is increased by providing a reflective layer, in particular in the form of a reflective metal surface. Such security elements generally belong to so-called OVDs (Optically Variable Devices) (OVD=Optically Variable Device). Additional features of such security elements, such as color ranges, are desirable both for counterfeiting protection and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/324
CPCB41M3/14B42D2035/22B42D2033/24B42D2033/10B42D15/10B42D2033/18G02B5/1847B42D15/0013B42D2033/06B42D2035/28B42D2035/14B42D2033/20B42D2031/14G02B5/1861B42D25/425B42D2035/16B42D2035/24B42D25/00B42D25/29B42D25/324B42D25/328B42D25/45
Inventor L·布雷姆H·P·贝措尔德D·盖姆
Owner LEONHARD KURZ STIFTUNG & CO KG
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