Label for concealing information
First Claim
Patent Images
1. A label for covering information comprising:
- a base layer having opposed first and second surfaces;
an adhesive layer attached to the first surface;
an opaque scratch layer attached to the second surface, and an authentication mark attached to the scratch layer, wherein the scratch layer is irreversibly removable from the base layer and said base layer includes at least one sealed region on the surface remote from said scratch layer, said seal region incorporating a coating which, after the label has been secured to a medium, indicates in an irreversible manner that said base layer has been removed from the medium.
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Abstract
A label for concealing proprietary information is attached to a backing material and includes a layer of adhesive, a base layer, an opaque scratch layer, which can be removed by rubbing, and an authentication mark applied to the scratch layer. The information may be on the backing material or between the base and scratch layers. In another embodiment, an ink film is located between the base layer and an object. Areas of anti-stick lacquer are provided between the ink film and the object, so that the relative adhesive force on the ink film has spatial variations.
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Citations
40 Claims
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1. A label for covering information comprising:
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a base layer having opposed first and second surfaces;
an adhesive layer attached to the first surface;
an opaque scratch layer attached to the second surface, and an authentication mark attached to the scratch layer, wherein the scratch layer is irreversibly removable from the base layer and said base layer includes at least one sealed region on the surface remote from said scratch layer, said seal region incorporating a coating which, after the label has been secured to a medium, indicates in an irreversible manner that said base layer has been removed from the medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification