G - Physics – 09 – F
Patent
G - Physics
09
F
117/6, 190/137.5
G09F 3/03 (2006.01) B44F 1/12 (2006.01) B65B 7/28 (2006.01) B65D 55/06 (2006.01) B67B 5/00 (2006.01) C09J 7/02 (2006.01)
Patent
CA 2017632
44246 CAN 3A Abstract of the Disclosure The present invention relates to a tamper indicating tape made from a film capable of splitting internally for use with a package to indicate opening of the package. In grocery stores, packages are subject to entry by various classes of tamperers. One type of tamperer opens the package, consumes the contents thereof, reseals the package, and places the resealed package back on the shelf. Another type of tamperer opens the package, introduces a foreign object therein, reseals the package, and then places the resealed package back on the shelf. This invention provides a tamper indicating tape for use with a closure or container. The tape comprises a film including phase separated polymers. Colored indicia are applied to opposing major surfaces of the film indicative of a condition that someone has tampered with the tape, e.g., tape removal and reattachment, or abrading. The film further bears a layer of adhesive thereon as a means for adhering the tape to a portion of a container or to a closure tape on a can lid. When the film of the tamper indicating tape is internally split, one set of colored indicia is obscured and the other set of colored indicia is rendered perceptible. When the film is abraded to remove the perceptible set of colored indicia, the aforementioned obscured set of colored indicia is rendered perceptible.
Rivera Raymond R.
Vanvleet Stephen B.
Wilson Shari J.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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