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US 6,183,018 B2Granted
Data carrier with optically variable color
AssigneeGiesecke & Devrient GmbH
InventorsEckhard Braun, Reinhard Plaschka
Life of this patent
Estimating the term…
Abstract
A data carrier with an optically variable element. The optically variable element includes a first structured print which is overlaid with a second print, at least in partial areas. The second print is applied to a document with an ink which contains an optically variable pigment having little or no body color of its own.
Claims21
A data carrier for paper of value comprising:
- an optically variable security element having at least one piece of information and one transparent, optically variable layer containing optically variable pigments;
- the at least one piece of information being represented in a color contrasting with the data carrier, and the optically variable layer disposed at least in partial areas over the at least one piece of information;
- and
- wherein the at least one piece of information has a structure selected from the group consisting of a fineness and line width, each of which is thinner than that which can be created by using the optically variable pigments.
1 more element
An optically variable security element comprising:
- at least one piece of information and one transparent, optically variable layer containing optically variable pigments, the information being represented in a color contrastable with a data carrier and the optically variable layer being disposed at least in partial areas over the information,
- and wherein the at least one piece of information has a structure selected from the group consisting of fineness and line width, each of which is thinner than that which can be created by using the optically variable pigments.
Dependencies are inferred from the claim text.