| 摘要 |
<p>The invention relates to a security element, particularly for security labels, having a carrier substrate (1) which has on one surface a colour-shift effect structure consisting of a layer of metal clusters (2), a spacer layer (3) and a layer (6) that reflects electromagnetic waves, characterized in that the spacer layer (3) consists of two sub-layers (4, 5) of identical or different composition situated one on top of the other, wherein the first sub-layer (4) facing toward the cluster layer (2) exhibits greater adhesion to the cluster layer than to the second sub-layer (5), and the second sub-layer (5) facing toward the layer (6) that reflects electromagnetic waves exhibits greater adhesion to the layer (6) that reflects electromagnetic waves than to the first sub-layer (4).</p> |
