Security structure including phosphorescent and fluorescent compositions
First Claim
Patent Images
1. A security structure comprising:
- at least one first fluorescent composition,at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the first fluorescent and second phosphorescent compositions being deposited on a support of the security structure, the support having first and second sidesthe security structure being in the form of a security thread, a security film or a patch, andthe first fluorescent composition being superposed, at least partially, with the second phosphorescent composition and/or the first and second compositions being applied in register on the security structure, andthe security structure comprising, on each of the first and second sides of the support, a barrier layer applied partially to the support of the security structure and/or to the first fluorescent composition and/or second phosphorescent composition, the first fluorescent and second phosphorescent composition being situated between the barrier layers in the thickness direction of the security structure, the barrier layers having a property of acting as a barrier to ultraviolet radiation if exposed thereto, the barrier layers being transparent to visible radiation, the barrier layers comprising an additive that absorbs UV radiation chosen from a phosphite, a triazine, a benzotriazole and an ether amine.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a security structure (10), comprising at least one first fluorescent composition (13) and at least one second phosphorescent composition (12), the first and second compositions being simultaneously excitable by a predefined illuminant from a single first surface (14) of the structure, the security structure (10) being provided in the form of a security thread, a security film, or a patch, wherein the first fluorescent composition is at least partially stacked on the second phosphorescent composition and/or the first and second compositions are used for the reference marking on the security structure.
11 Citations
22 Claims
-
1. A security structure comprising:
-
at least one first fluorescent composition, at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the first fluorescent and second phosphorescent compositions being deposited on a support of the security structure, the support having first and second sides the security structure being in the form of a security thread, a security film or a patch, and the first fluorescent composition being superposed, at least partially, with the second phosphorescent composition and/or the first and second compositions being applied in register on the security structure, and the security structure comprising, on each of the first and second sides of the support, a barrier layer applied partially to the support of the security structure and/or to the first fluorescent composition and/or second phosphorescent composition, the first fluorescent and second phosphorescent composition being situated between the barrier layers in the thickness direction of the security structure, the barrier layers having a property of acting as a barrier to ultraviolet radiation if exposed thereto, the barrier layers being transparent to visible radiation, the barrier layers comprising an additive that absorbs UV radiation chosen from a phosphite, a triazine, a benzotriazole and an ether amine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20)
-
-
15. A security structure comprising:
-
at least one first fluorescent composition, at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the security structure being in the form of a security thread, a security film or a patch, the first fluorescent composition being superposed, at least partially, with the second phosphorescent composition and/or the first and second compositions being applied in register on the security structure, and the security structure further comprising an apertured opaque layer having a first side and a second side, and the first and second compositions being located respectively on the first side and second side of the apertured opaque layer. - View Dependent Claims (16)
-
-
17. A security structure comprising:
-
at least one first fluorescent composition, at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the security structure being in the form of a security thread, a security film or a patch, the first fluorescent composition being superposed, at least partially, with the second phosphorescent composition and/or the first and second compositions being applied in register on the security structure, and the security structure comprising two apertured opaque layers, the second composition being located between the two apertured opaque layers and one of the apertured opaque layers being located between the first composition and the second composition.
-
-
18. A security structure comprising:
-
at least one first fluorescent composition, at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the security structure being in the form of a security thread, a security film or a patch, the first fluorescent composition being superposed, at least partially, with the second phosphorescent composition and/or the first and second compositions being applied in register on the security structure, and the security structure further comprising an apertured opaque layer having a first side and a second side, the first side of the apertured opaque layer comprising the first fluorescent composition and the second phosphorescent composition, the second side of the apertured opaque layer comprising a third fluorescent composition or fourth phosphorescent composition, at least one aperture of the aperture opaque layer comprising a superposition of one composition chosen from one of the first and second compositions and one composition chosen from one of the third and fourth compositions. - View Dependent Claims (19)
-
-
21. A security document incorporating a security structure comprising:
-
at least one first fluorescent composition, at least one second phosphorescent composition, the first and second compositions being able to be excited simultaneously by a predefined illuminant from one and the same first face of the structure, the security document comprising a paper substrate on which the first and second compositions are applied directly, and the first fluorescent composition being superposed, at least partially, with the second phosphorescent composition, and/or the first and second compositions being applied in register on the security structure, and the security structure comprising, on each side of the paper substrate, a barrier layer having a property of acting as a barrier to ultraviolet radiation if exposed thereto, the first fluorescent and second phosphorescent compositions being situated between the barrier layers in the thickness direction of the security structure, the barrier layers being transparent to visible radiation, the barrier layers being applied in the form of a pattern, the barrier layers comprising an additive that absorbs UV radiation chosen from a phosphite, a triazine, a benzotriazole and an ether amine. - View Dependent Claims (22)
-
Specification