Substrates
OwnerStephen D. Ridyard, Peter R. Lomaxinventors
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Abstract
The invention relates to improvements in substrates and in particularly in new substrates having security features which provide security against imitation. A security substrate comprises at least two light transmitting support layers, each having indicia formed by a plurality of opaque regions provided on one surface thereof indicia. The support layers are laminated together with the opaque regions located inside the substrate and separated by at least one layer of an opaque magnetic material of contrasting color to the opaque regions such that in reflected light the indicia are visible. In transmitted light the indicia are not visible.
Claims48
A security substrate comprising at least two light transmitting support layers, each having indicia formed by a plurality of opaque regions provided on one surface thereof indicia, the support layers being laminated together with the opaque regions located inside the substrate and separated by at least one layer of an opaque magnetic material of contrasting colour to the opaque regions such that in reflected light the indicia are visible, whereas in transmitted light the indicia are not visible.
A security substrate comprising at least two light transmitting support layers, each having a plurality of opaque regions provided on one surface thereof, providing indicia, the support layers being laminated together with the opaque regions located inside the substrate separated by at least one layer of an opaque non-metallic material of contrasting colour to the opaque regions such that in reflected light the indicia are visible to the unaided eye but are not distinguishable in transmitted light.
Dependencies are inferred from the claim text.