Patent ID: 10625533

Abstract:
A semi-transparent security element which upon viewing in incident light and in transmitted light has different colors, comprises either (a) a transparent carrier substrate having a front side and a back side. The front side has a metallic layer “V-a” dyed in a first color, obtainable by printing technology by means of dyed metal pigments. The back side has an ink layer appearing in a second color “R-a” and a metallic layer “R-b” dyed in a first color, obtainable by printing technology by means of dyed metal pigments; or (b) a transparent carrier substrate having a front side and a back side. The front side has a semi-transparent metallic layer “V-A” and an ink layer appearing in a first color “V-B” and the back side has an ink layer “R-A” appearing in a second color, a semi-transparent metallic layer “R-B” and an ink layer “R-C” appearing in a first color.