FIELD: bindery.
SUBSTANCE: invention relates to a protective element having a thermoplastic or photosensitive layer of replication lacquer, wherein said replication varnish layer comprises non-periodic randomly arranged (randomized) structures in submicron range that have optical effect, not depending on angle, such as colour effect, to method of its production and application to it.
EFFECT: providing a security element and a method for its preparation, which has an angle-independent optical colour effect based on omnidirectional light scattering at structures in the sub-pm range.
12 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROTECTIVE ELEMENT, VALUABLE DOCUMENT WITH SUCH PROTECTIVE ELEMENT, AND ALSO METHOD OF MANUFACTURING PROTECTIVE ELEMENT | 2010 |
|
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|
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| OPTICALLY CHANGING PROTECTIVE DEVICE | 2007 |
|
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|
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|
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| PROTECTIVE ELEMENT AND METHOD OF ITS PRODUCTION | 2006 |
|
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| PROTECTIVE ELEMENT | 2003 |
|
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| PROTECTIVE ELEMENT AND METHOD OF MAKING PROTECTIVE ELEMENT | 2011 |
|
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| SECURITY ELEMENTS AND METHODS OF MANUFACTURE THEREOF | 2015 |
|
RU2675446C2 |
| METHOD FOR MANUFACTURING OF MULTI-LAYER SUBSTRATE AND MULTI-LAYER SUBSTRATE | 2006 |
|
RU2374082C2 |
