Multicomponent taggant fibers and method
AssigneesIntellectual Product Protection, LLC, Fiber Innovation Technology, Inc.
InventorsTimothy P. Merchant, Jeffrey S. Dugan
Life of this patent
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Abstract
Taggant fibers and methods of use provide for enhanced protection and security when the fibers are used in documents such as land titles, currency, passports and other documents of value. The taggant fibers consist of a minimum of two separate zones with each zone containing a different taggant to emit different wave lengths when excited. The taggants may consist of organic or inorganic compounds as are conventionally known and can be manufactured using for example polymeric materials which can be extruded during the fiber manufacturing process. Authentication of the fibers or documents containing such fibers can be readily viewed using conventional techniques.
Claims24
A multicomponent taggant fiber comprising:
- a. a first zone, said first zone comprising a first polymer, a first taggant, said first taggant within said first polymer;
- b. a second zone, said second zone separate from said first zone and comprising a second polymer, a second taggant, said second taggant within said second polymer, said first taggant being chemically incompatible upon contact with said second taggant.
A multicomponent taggant fiber comprising:
- a. a first zone, said first zone comprising a first polymer, a first optically active taggant, said first optically active taggant within said first polymer;
- b. a second zone, said second zone separate from said first zone and comprising a second polymer, a second optically active taggant, said second optically active taggant within said second polymer, a first stimulus, said first optically active taggant responsive to said first stimulus, and a second stimulus, said second optically active taggant responsive to said second stimulus.
A multicomponent taggant fiber comprising:
- a. a first zone, said first zone comprising a first polymer, a first optically active taggant, said first optically active taggant within said first polymer, said first optically active taggant comprising a fluorophore;
- b. a second zone, said second zone separate from said first zone and comprising a second polymer, a second optically active taggant, said second optically active taggant within said second polymer, said second optically active taggant comprises yttrium oxide a first stimulus, said first optically active taggant responsive to said first stimulus, and a second stimulus, said second optically active taggant responsive to said second stimulus.
Dependencies are inferred from the claim text.