Abstract: A tamper indicating device. A preferred embodiment of the invention provides a backing having a first side and a second side, wherein the backing comprises a first phase and a second phase, wherein the backing has a first level of light diffusion, and when a peeling force is applied to the backing, the backing fractures or internally delaminates and has a second level of light diffusion that is a higher level of light diffusion than the first level of light diffusion; a flood coat applied to the second side of the backing, the flood coat defining a window therein; and a mask applied to the tamper indicating device, the mask being in partial or whole registration with the window in the flood coat.

Abstract: A tamper indicating device. A preferred embodiment of the invention provides a backing having a first side and a second side, wherein the backing comprises a first phase and a second phase, wherein the backing has a first level of light diffusion, and when a peeling force is applied to the backing, the backing fractures or internally delaminates and has a second level of light diffusion that is a higher level of light diffusion than the first level of light diffusion; a flood coat applied to the second side of the backing, the flood coat defining a window therein; and a mask applied to the tamper indicating device, the mask being in partial or whole registration with the window in the flood coat.

Abstract: The invention is a tamper indicating device including a backing. The backing includes a first phase and a second phase. The backing is normally light transmissive, but a peeling force causes the backing to internally delamninate and become opaque. A first skin layer is fixed to the backing wherein the skin layer minimizes pre-destruction of the backing. A layer of adhesive is applied to the first skin layer, which can be affixed to a substrate.

Abstract: The invention is a tamper indicating device including a backing. The backing includes a first phase and a second phase. The backing is normally light transmissive, but a peeling force causes the backing to internally delaminate and become opaque. A first skin layer is fixed to the backing wherein the skin layer minimizes pre-destruction of the backing. A layer of adhesive is applied to the first skin layer, which can be affixed to a substrate.

Abstract: A color changeable device that has been partially activated. The device comprises a flexible substrate with a first major surface and a second major surface and an interference color generating laminate on the first major surface. The color generating laminate comprises a first layer and a second layer in intimate contact. When the first and second layers are in intimate contact, the laminate generates an interference color. When the first and second layers are not in intimate contact, the laminate does not generate the interference color. The substrate and laminate include a first permanent deformation causing separation of the first and second layers at a first portion of the device while retaining the first and second layers in intimate contact at a second portion of the device. The device is particularly useful for confirming the authenticity of an article without having to remove the color change device from the article.

Abstract: A security label with a sheet material having a first major surface. An adhesive layer containing an identifier medium is coated on the first major surface. A barrier medium is selectively applied on an exposed surface of the adhesive layer for at least partially blocking diffusion of the identifier medium from the adhesive layer into a substrate. A release liner may be provided that extends substantially over the exposed surface of the adhesive layer. A method of preparing the security label includes applying a barrier medium in the form of an identifier pattern to a low energy surface material. The low energy surface material is laminated to a security label having an adhesive layer containing an identifier medium. When the low energy surface material is removed from the adhesive layer, the barrier medium substantially transfers to the adhesive layer to block diffusion of the identifier medium into a substrate.

Abstract: A tamper-indicating label which includes (i) light-transmissive facestock, (ii) a light-transmissive imaged release coating covering a portion of the facestock so as to provide indicia, (iii) a contrast enhancement coating over the release coated surface of the facestock, and (iv) an adhesive coated upon the contrast enhancement layer where the indicia provided by the release coating is not visible until the facestock is forcibly separated from the release coating after which the indicia becomes permanently visible and the label is provided with sufficient assembly cohesive strength to keep the label together as a single unit after the facestock is separated from the release coating and the indicia is rendered visually perceptible.