CPC G09F 3/0291 (2013.01) [B32B 7/12 (2013.01); C09J 7/29 (2018.01); G09F 3/005 (2013.01); B32B 2255/24 (2013.01); B32B 2307/40 (2013.01); C09J 2301/122 (2020.08); C09J 2301/16 (2020.08); C09J 2301/41 (2020.08); G09F 2003/0257 (2013.01)] | 31 Claims |
1. A self-expiring identification band comprising:
a facestock that is elongated in the longitudinal direction, having a top surface and a bottom surface;
a first chemical composition disposed on at least a portion of the top surface of the facestock, said portion of the top surface running at least a third of a length of the facestock; and
a second chemical composition disposed on at least a portion of the bottom surface of the facestock, said portion running at least a third of the length of the facestock;
wherein the first and second chemical compositions are coactable to cause a visually perceptible change to the top surface of the facestock.
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