FIELD: printing.
SUBSTANCE: printing protective element is created, comprising at least a first and a second overprints. The first of them is a raster formed by the pixel grid having the form of signs bearing information, and the second is a raster which coincides in position with the first overprint. At that the combination of the first and second overprints is of the form of continuous-tone image, and the information contained in the said signs is at least partially hidden by the second overprint.
EFFECT: method of manufacturing the said protective element is created.
22 cl, 12 dwg
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Authors
Dates
2015-07-10—Published
2011-04-21—Filed