Data carrier comprising a customizable authenticity feature

• US 10,286,718 B2
• Filed: 05/13/2015
• Issued: 05/14/2019
• Est. Priority Date: 05/16/2014
• Status: Active Grant

• Current Assignee: U-NICA Technology AG (U-NICA Solutions AG)
• Original Assignee: U-NICA Technology AG (U-NICA Solutions AG)
• Inventors: Franken, Klaus
• Primary Examiner(s): St Cyr, Daniel
• Application Number:
  US15/309,913
• Publication Number:
  US 20170144469A1
• Time in Patent Office: 1,462 Days
• Field of Search: 235493, 235487, 235449
• CPC Class Codes: B42D 25/369 Magnetised or magnetisable materials
• CPC Class Codes: B42D 25/41 using electromagnetic radiation B42D25/435 takes precedence
• CPC Class Codes: G06K 19/06187 with magnetically detectable marking
• CPC Class Codes: G06K 7/087 flux-sensitive, e.g. magnetic, detectors G06K7/10336 takes precedence

Abstract

A data carrier, in particular a plastic card, has an authenticity feature (4) introduced thereon, which can be customized during radiation with a high-energy beam. The customizable authenticity features (4) consist of at least one magnetizable component, wherein the customizable authenticity features (4) are magnetically formed. The intensity and/or wavelength of the radiation is selected such that the customizable magnetic authenticity features (4) undergo a localized structural change during irradiation, wherein the magnetizable components of the customizable magnetic authenticity feature (4) are at least partially destroyed. Following the irradiation, the customized magnetic authenticity features (4) form an area of lesser or no magnetic field in the entire image.

Claims

1. A data carrier comprising at least one authenticity feature provided in said data carrier, which on irradiation with a high-energy beam is personalizable by means of changes in physical and/or chemical properties, wherein the at least one personalizable authenticity feature is composed of at least one magnetizable component, wherein the at least one personalizable authenticity feature is magnetically configured, wherein at least one from intensity or wavelength of the energy-rich beam is selected such that the at least one personalizable magnetic authenticity feature undergoes a local structural change on irradiation, and wherein the magnetizable component of the at least one personalizable magnetic authenticity feature is at least partially destroyed by the local structural change, so that the at least one personalized magnetic authenticity feature forms an area of lesser or no magnetic field in the overall image after irradiation,

wherein at least one second authenticity feature is provided in the data carrier, which on irradiation with said energy-rich beam or a further energy-rich beam is personalizable, the at least one second personalizable authenticity feature is composed of at least one color-active component, the at least one second personalizable authenticity feature is configured to be luminescent, wherein at least one from the intensity or wavelength of the beam is selected such that the at least one personalizable luminescent authenticity feature undergoes a local structural change on irradiation, and the color-active component of the at least one personalizable luminescent authenticity feature is at least partially destroyed by the local structural change, so that the at least one personalized luminescent authenticity feature does not luminesce on irradiation together with the at least one non-personalized luminescent authenticity feature, thus causing a negative image in the overall luminescent image or a negative luminescent image to become visible.

2. The data carrier as claimed in claim 1, wherein the color-active component is located in and/or on at least one luminescent layer and the magnetizable or magnetic component is located in and/or on at least one magnetizable layer.

3. The data carrier as claimed in claim 1, wherein the magnetizable layer and the luminescent layer are arranged adjacent to each other or the magnetizable layer and the luminescent layer are arranged one on top of the other, wherein the layer that is arranged in the direction of the incident beam and is irradiated as the first layer by the beam is translucent to the beam used, which in the other layer influences the authenticity features, and in particular partially destroys them.

4. The data carrier as claimed in claim 1, wherein the luminescent component and the magnetizable or magnetic component are located together within and/or on at least one magnetoluminescent layer.

5. The data carrier as claimed in claim 1, wherein the luminescent component and the magnetizable or magnetic component are constituents of a compound and wherein this compound is located in and/or on at least one molecular magnetoluminescent layer.

6. The data carrier as claimed in claim 1, wherein the data carrier has one or a plurality of additional layers, wherein this one or a plurality of additional layers are formed as a protective layer and/or contain further additive substances that change color on irradiation.

7. The data carrier as claimed in claim 1, wherein at least one layer from the group encompassing the magnetizable layer, the luminescent layer, the magnetoluminescent layer, the molecular magnetoluminescent layer and the additional layer, respectively, extends over the entire data carrier.

8. The data carrier as claimed in claim 1, wherein the at least partial destruction of the color-active component and the magnetizable component of the at least one personalizable authenticity feature is carried out by irradiation of the same type, in particular by a single radiation source, in particular a laser, or wherein the at least partial destruction of the color-active component and the magnetizable component of the at least personalizable authenticity feature is carried out by at least two types of irradiation, in particular by two separate radiation sources.

9. The data carrier as claimed in claim 1, wherein the at least one personalized authenticity feature can be caused to luminesce and be demagnetized under the effect of electromagnetic radiation and/or corpuscular radiation.

10. The data carrier as claimed in claim 1, wherein the at least one personalized authenticity feature is effectible by photoluminescence and/or chemoluminescence and/or bioluminescence.

11. The data carrier as claimed in claim 1, wherein luminescence can occur in the visible and/or the non-visible spectral range.

12. The data carrier as claimed in claim 1, comprising a covering layer and a carrier layer, wherein the covering layer is arranged on the side of the data carrier facing toward the irradiation and is translucent to the beam used.

13. The data carrier as claimed in claim 1, wherein the luminescent substance of the at least one personalizable authenticity feature belongs to the substance group of the tin sulfide derivatives, benzoxazinone derivatives, pyrene derivatives or pyrazoline derivatives.

14. The data carrier as claimed in claim 1, wherein the high-energy beam is a beam from the group encompassing a laser beam or an electron or neutron beam.

15. The data carrier as claimed in claim 1, wherein the magnetizable substance of the at least one personalizable authenticity feature belongs to the substance group of the organometallic complexes or is an organic compound with a radical bearing functional group that is stabilized by resonance and/or steric effects, and/or the compound of the personalizable authenticity feature belongs to the molecule classes of the polycyclic compounds, aromatic compounds, or conjugated compounds, and/or the magnetizable substance has a Curie temperature above room temperature.

16. A data carrier comprising at least one authenticity feature provided in said data carrier, which on irradiation with a high-energy beam is personalizable by means of changes in physical and/or chemical properties, wherein the at least one personalizable authenticity feature is composed of at least one magnetizable component, wherein the at least one personalizable authenticity feature is magnetically configured, wherein at least one from intensity or wavelength of the energy-rich beam is selected such that the at least one personalizable magnetic authenticity feature undergoes a local structural change on irradiation, and wherein the magnetizable component of the at least one personalizable magnetic authenticity feature is at least partially destroyed by the local structural change, so that the at least one personalized magnetic authenticity feature forms an area of lesser or no magnetic field in the overall image after irradiation,

wherein the magnetizable component in an external magnetic field shows inherent magnetization independently of said external magnetic field, wherein the magnetizable component is magnetized by the external magnetic field, wherein the inherent magnetization of the magnetizable component is oriented parallel to the external magnetic field, wherein the magnetized component is then magnetized, and wherein the personalizable magnetic authenticity feature then constitutes a personalized magnetic authenticity feature.

17. The data carrier as claimed in claim 16, wherein after irradiation with a high-energy beam, the at least one personalized magnetic authenticity feature is neither magnetic nor magnetizable at the irradiation site and forms an area of lesser or no magnetic field at the irradiation site.

18. The data carrier as claimed in claim 17, wherein the area of lesser or no magnetic field of the personalized magnetic authenticity feature is not detected and/or visualized on observation by a suitable detection device, while areas of the personalized magnetic authenticity feature that were not exposed to irradiation with a high-energy beam show magnetic areas that are detected and/or visualized by the suitable detection device.

19. The data carrier as claimed in claim 16, wherein the luminescent component and the magnetizable or magnetic component are constituents of a compound and wherein this compound is located in and/or on at least one molecular magnetoluminescent layer, wherein the compound is a molecular compound, wherein the magnetizable component and the color-active component are constituents of the molecular compound, wherein the molecular compound is both luminescent and magnetizable, wherein the magnetizable component of the molecular compound is magnetized by the external magnetic field and is then magnetized, and wherein both the luminescent component and the magnetic component of the molecular compound are at least partially destroyed by irradiation.

20. The data carrier as claimed in claim 19, wherein, because of the at least partial destruction of the luminescent component of the molecular compound, this area of the authenticity feature does not luminesce on irradiation by the suitable detection device, while the non-irradiated areas luminesce on irradiation by the detection device, and in that, because of the at least partial destruction of the magnetic component of the molecular compound, this area of the authenticity feature is not detected and/or visualized on observation by a suitable detection device, while the non-irradiated areas are magnetic areas that are detected and/or visualized by the detection device.

21. The data carrier as claimed in claim 16, wherein the high-energy beam is a beam from the group encompassing a laser beam or an electron or neutron beam.