Self-expiring identification bands and methods of use thereof

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 multiple, noncontiguous portions of the top surface of the facestock that are separated from each other by portions of the top surface of the facestock that do not bear the first chemical composition;
• and
• a second chemical composition disposed on at least a portion of the bottom surface 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;
• wherein the top surface of the band defines 360 degrees when the band is wrapped around an object and wherein the largest portion of the facestock that does not bear the first chemical composition does not occupy more than 90 degrees of the wrapped band.

A looped self-expiring identification band comprising:

• a facestock that is elongated in the longitudinal direction between a pair of ends and 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;
• and
• a second chemical composition disposed on at least a portion of the bottom surface of the facestock;
• wherein the facestock is wrapped on itself to form a loop with the top surface of the band facing away from the object and the ends of the facestock overlapping each other to form an overlapped portion, the top surface of the band defining 360 degrees of the looped self-expiring identification band;
• wherein, in at least a part of the overlapped portion, the first chemical composition and the second chemical composition contact each other and coact to form one or more expiration zones that provide a visually perceptible change at a pre-established time after contact;
• and
• wherein, for each 180 degree section of the 360 degrees of the looped self-expiring identification band, one or more of the one or more expiration zones are positioned at least in part in that respective 180 degree section.

A self-expiring identification band comprising:

• a facestock that is elongated in the longitudinal direction, having a top surface and a bottom surface;
• a foldable tab disposed along at least part of an edge of the facestock;
• a first chemical composition disposed on at least a portion of the bottom surface of the foldable tab;
• and
• a second chemical composition disposed on at least a portion of the bottom surface 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;
• wherein, when the tab is folded such that a portion of the top surface of the tab bearing the first chemical composition contacts at least part of a portion of the top surface of the facestock bearing the second chemical composition, an overlapped portion is formed in which the first chemical composition and the second chemical composition contact each other in at least a part of the overlapping portion to form at least one expiration zone in which the first and second chemical compositions coact to cause the visually perceptible change to the band in the expiration zone;
• wherein the overlapped portion runs along less than an entire length of the facestock.

A self-expiring identification band comprising:

• a facestock that is elongated in the longitudinal direction, having a top surface and a bottom surface;
• an adhesive article having a bottom surface and a top surface, the adhesive article initially being detachable or separate from the elongated band;
• a first chemical composition disposed on at least a portion of the top surface of the facestock;
• and
• a second chemical composition disposed on at least a portion of the bottom surface of the adhesive article;
• wherein, as an activation function, the adhesive article is applicable to the facestock such that at least part of the bottom surface of the adhesive article contacts at least part of the top surface of the facestock to form an overlapped portion and wherein the first and second chemical compositions are coactable to cause a visually perceptible change to the top surface of the adhesive article;
• wherein the activating function is independent from a loop-forming function in which the facestock is formed into a loop around an object.