Security feature
AssigneeCCL Secure Pty Ltd
InventorJustin Lawson
Life of this patent
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Abstract
A security feature for a security document, the security feature comprising one or more photoluminescent ink layers, each including a composition capable of emitting visible light when irradiated with a specified electromagnetic wavelength range, wherein the one or more photoluminescent ink layers are at least partially printed in a window region of the security document.
Claims41
A security feature for a security document, the security feature comprising:
- one or more photoluminescent ink layers, each including a composition capable of emitting visible light when irradiated with a specified electromagnetic wavelength range, wherein the one or more photoluminescent ink layers are at least partially printed in a window region of the security document;
- and
- at least one opacifying layer, at least partially overlapping the one or more photoluminescent ink layers,
- wherein the one or more photoluminescent ink layers and the at least one opacifying layer have the same or substantially similar colour appearances when viewed under visible light.
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Dependencies are inferred from the claim text.