| 摘要 |
The invention especially relates to a strip intended to be incorporated into a security document, this strip emerging onto the surface of said document in the form of windows, and comprising a transparent or translucent carrier material (4) covered, on one or the other of its opposite faces, with at least three separate and superposed coating layers (51, 52, 53), characterized in that it especially comprises an intermediate second layer (52) that has an optical rendering different from that of the first and third layers (51, 53); the intermediate second layer (52) being opaque and containing at least two regions (520) that are at least partially devoid of coating, these two regions (520) respectively having different outlines; the first (51) and third (53) coating layers form at least one pattern, one portion of the pattern in the first layer (51) being visible through one of said two regions that are at least partially devoid of coating, whereas at least one portion of the pattern in the third layer (53) is visible through the other of said two regions that are at least partially devoid of coating, said patterns being different from each other. |
