Security feature

• US 10,479,128 B2
• Filed: 10/27/2017
• Issued: 11/19/2019
• Est. Priority Date: 10/27/2017
• Status: Active Grant

• Current Assignee: HID Global CID SAS (Assa Abloy AB)
• Original Assignee: Assa Abloy AB
• Inventors: Erickson, Brett Barton
• Primary Examiner(s): Vonch, Jeffrey A
• Application Number:
  US15/796,498
• Publication Number:
  US 20190126661A1
• Time in Patent Office: 753 Days
• Field of Search: None
• CPC Class Codes: B32B 2038/042 Punching
• CPC Class Codes: B32B 2250/05 5 or more layers
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2250/244 All polymers belonging to those covered by group B32B27/36
• CPC Class Codes: B32B 2250/40 Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
• CPC Class Codes: B32B 2250/44 Number of layers variable across the laminate
• CPC Class Codes: B32B 2307/41 Opaque
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/422 Luminescent, fluorescent, phosphorescent
• CPC Class Codes: B32B 2369/00 Polycarbonates
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B32B 27/365 comprising polycarbonates
• CPC Class Codes: B32B 3/266 characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 37/06 characterised by the heating method
• CPC Class Codes: B32B 37/10 characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
• CPC Class Codes: B32B 5/142 Variation across the area of the layer
• CPC Class Codes: B32B 7/02 Physical, chemical or physicochemical properties
• CPC Class Codes: B42D 13/00 Loose leaves modified for binding; Inserts loose leaves modified for temporary attachment B42F3/00; indexing features B42F21/00
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/346 : Perforations
• CPC Class Codes: B42D 25/351 : Translucent or partly translucent parts, e.g. windows
• CPC Class Codes: B42D 25/387 : absorbing or reflecting ultraviolet light
• CPC Class Codes: B42D 25/455 : using heat
• CPC Class Codes: B42D 25/46 : using pressure
• CPC Class Codes: B44F 1/066 : comprising at least two transparent elements, e.g. sheets, layers layered products of glass and synthetic resin containing decorations or patterns B32B17/10247; window units comprising two or more parallel glass panes E06B3/66
• CPC Class Codes: B44F 1/10 : Changing, amusing, or secret pictures
• CPC Class Codes: B44F 1/14 : Iridescent effects
• CPC Class Codes: Y10S 428/916 : Fraud or tamper detecting
• CPC Class Codes: Y10T 428/24298 : Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
• CPC Class Codes: Y10T 428/24331 : including nonapertured component
• CPC Class Codes: Y10T 428/24339 : Keyed
• CPC Class Codes: Y10T 428/24347 : From both sides

Abstract

A security document with unidirectional visual illumination is disclosed. A security feature is positioned within the document and not visible in normal ambient lighting conditions but becomes visible under specialized lighting conditions, for example in the presence of ultraviolet light. The security feature is constructible such that it is visible only from a single side of the security document, with the side being predeterminable regardless of the orientation of the specialized light.

Claims

1. A secure laminate, comprising:

a core layer, at least a portion of which is clear non-laserable polycarbonate, the core layer having a first major surface and a second major surface opposing the first major surface, and a hole passing through the at least clear non-laserable polycarbonate portion, the hole having a shape and filled with clear laserable polycarbonate;

a first clear laserable polycarbonate layer positioned adjacent the first major surface of the core layer;

a second clear laserable polycarbonate layer positioned adjacent the second major surface of the core layer;

a first opaque layer positioned adjacent the first clear laserable polycarbonate layer and on the opposite side of the first clear laserable polycarbonate layer from the core layer, and a first window formed through the first opaque layer, the first window aligned with the hole, the first opaque layer defining a front side of the laminate;

a second opaque layer positioned adjacent the second clear laserable polycarbonate layer and on the opposite side of the second clear laserable polycarbonate layer from the core layer, and a second window formed through the second opaque layer, the second window aligned with the hole and the first window, the second opaque layer defining a backside of the laminate; and

an area of ultraviolet fluorescent ink positioned between the first opaque layer and the core layer, and aligned with the first and second windows and the hole;

wherein, in ambient light conditions the hole is not visible from either the front side of the laminate through the first window or from the backside of the laminate through the second window, and when an ultraviolet light source is directed at the front side of the laminate the shape of the hole is illuminated through the second window on the backside of the laminate but not through the first window on the front side of the laminate.

2. The secure laminate of claim 1, wherein when an ultraviolet light source is directed at the backside of the laminate, the shape of the hole is not illuminated through the first window or the second window.

3. The secure laminate of claim 1, wherein the entirety of the core layer comprises clear non-laserable polycarbonate.

4. The secure laminate of claim 1, wherein the core layer comprises opaque polycarbonate, and wherein a window is formed in the core layer and is filled with clear non-laserable polycarbonate, and the hole is formed in the clear non-laserable polycarbonate.

5. The secure laminate of claim 4, wherein the opaque polycarbonate is white polycarbonate.

6. The secure laminate of claim 1, wherein the shape of the hole is at least one of a geometric shape, a non-geometric shape, a logo, a name, a face, and a symbol.

7. The secure laminate of claim 1, wherein at least one of the first or second opaque layers comprises white polycarbonate.

8. The secure laminate of claim 1, further comprising a third clear laserable polycarbonate layer adjacent to and outside of the first opaque layer and a fourth clear laserable polycarbonate layer adjacent to and outside of the second opaque layer.

9. The secure laminate of claim 1, wherein the area of ultraviolet fluorescent ink forms at least one of a pattern and a solid.

10. The secure laminate of claim 9, wherein the pattern is a striped pattern.

11. The secure laminate of claim 1, wherein when an ultraviolet light is applied to either the front side or the backside of the ID, the ultraviolet fluorescent ink illuminates in the first and second window.

12. The secure laminate of claim 1, wherein the area of ultraviolet fluorescent ink comprises a plurality of different ultraviolet fluorescent inks.

20. A method of making the secure laminate of claim 1, the method comprising:

providing the core layer;

forming the hole in the core layer;

positioning the first clear laserable polycarbonate layer on the first major surface of the core layer;

positioning the second clear laserable polycarbonate layer on the second major surface of the core layer;

applying the ultraviolet fluorescent ink to a surface of the first clear laserable polycarbonate layer at a position aligned with the hole in the core layer; and

applying pressure and heat to the layers to cause the hole to fill with clear laserable polycarbonate and to form a single laminate from the layers.

13. A secure laminate, comprising:

a core layer, at least a portion of which is clear non-laserable polycarbonate, the core layer having a first major surface and a second major surface opposing the first major surface, and a first hole passing through the at least clear non-laserable polycarbonate portion, the first hole having a shape and filled with clear laserable polycarbonate;

a first clear laserable polycarbonate layer positioned adjacent the first major surface of the core layer, and defining a front side of the laminate;

a second clear laserable polycarbonate layer positioned adjacent the second major surface of the core layer;

an area of ultraviolet fluorescent ink positioned between the core layer and the second clear laserable polycarbonate layer, and aligned with the hole in the clear non-laserable polycarbonate portion of the core layer;

a clear non-laserable polycarbonate layer positioned adjacent to the second clear laserable polycarbonate layer, on the side opposite the core layer;

a third clear laserable polycarbonate layer positioned adjacent the clear non-laserable polycarbonate layer on the side opposite the core layer;

a first opaque polycarbonate layer positioned adjacent to the third clear laserable polycarbonate layer on the side opposite the core layer, a second hole formed in the opaque layer, the second hole aligned with the first hole; and

a fourth clear laserable polycarbonate layer positioned adjacent the opaque layer on the side opposite the core layer and defining the backside of the laminate;

wherein, in ambient light conditions the first hole is not visible from either the front side of the laminate or the backside of the laminate, and when an ultraviolet light source is directed at the front side of the laminate the ultraviolet fluorescent ink illuminates the shape of the first hole, the illumination of the shape of the first hole visible from the front side of the laminate and from the backside of the laminate, and the illumination of the shape of the first hole is stronger from the front side than the backside.

14. The secure laminate of claim 13, wherein when an ultraviolet light source is directed at the backside of the laminate, the ultraviolet fluorescent ink illuminates and the shape of the first hole is not visible from either the front side or the backside of the laminate.

15. The secure laminate of claim 13, wherein when an ultraviolet light is applied to either the front side or the backside of the ID, the ultraviolet fluorescent ink illuminates in the first and second window.

16. The secure laminate of claim 13, wherein the core layer comprises a second opaque polycarbonate layer with a third hole formed therein, and the clear non-laserable polycarbonate portion is disposed with the third hole, and the third hole is aligned with the second hole.

17. The secure laminate of claim 13, wherein the shape of the first hole is at least one of a geometric shape, a non-geometric shape, a logo, a name, a face, and a symbol.

18. The secure laminate of claim 13, wherein the area of ultraviolet fluorescent ink forms at least one of a pattern and a solid.

19. The secure laminate of claim 13, wherein the area of ultraviolet fluorescent ink comprises a plurality of different ultraviolet fluorescent inks.

21. A method of making the secure laminate of claim 13, the method comprising:

providing the core layer;

forming the hole in the core layer;

positioning the first clear laserable polycarbonate layer on the first major surface of the core layer;

positioning the second clear laserable polycarbonate layer on the second major surface of the core layer;

applying the ultraviolet fluorescent ink between the core layer and the second clear laserable polycarbonate layer at a position aligned with the hole in the core layer; and

applying pressure and heat to the layers to cause the hole to fill with clear laserable polycarbonate and to form a single laminate from the layers.