Ink coatings for identifying objects

• US 8,323,780 B1
• Filed: 10/08/2004
• Issued: 12/04/2012
• Est. Priority Date: 10/08/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Simske, Steven J., Ortiz, Lester, Mesarina, Malena, Deolalikar, Vinay, Brignone, Cyril, Oget, Guillaume
• Primary Examiner(s): Higgins, Gerard
• Application Number:
  US10/961,949
• Time in Patent Office: 2,979 Days
• Field of Search: 428/195.1, 283/85, 283/91, 283/92, 283/89, 283/87
• US Class Current: 428/195.1
• CPC Class Codes: B41M 3/14 Security printing securities B42D25/29
• CPC Class Codes: B41M 3/144 using fluorescent, luminescent or iridescent effects
• CPC Class Codes: B42D 2033/20 Coloured material; Pigments or inks
• CPC Class Codes: B42D 2035/08 Alphanumerical data
• CPC Class Codes: B42D 25/29 Securities; Bank notes
• CPC Class Codes: B42D 25/382 absorbing or reflecting infrared light
• CPC Class Codes: B42D 25/387 absorbing or reflecting ultraviolet light
• CPC Class Codes: G07D 7/1205 Testing spectral properties
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

A coating for an object having identifying indicia disposed thereon. An ink layer contacts at least a portion of the identifying indicia. The ink layer obscures the portion when exposed to light within a predetermined wavelength range, and the ink layer reveals a predetermined area of the portion when exposed to light outside of the predetermined wavelength range.

Claims

1. An object, comprising:

an identifying indicia disposed on the object, the identifying indicia including an ink, having pigments therein, that is opaque when exposed to light both inside and outside a predetermined wavelength range;

an ink layer established on at least one portion of the identifying indicia and obscuring the at least one portion of the identifying indicia when exposed to light within the predetermined wavelength range;

wherein the ink layer includes;

a first section including a first section ink that obscures the at least one portion of the identifying indicia when exposed to the light within the predetermined wavelength range, but is substantially transparent and thus reveals the at least one portion of the identifying indicia when exposed to light outside the predetermined wavelength range; and

a second section including a second section ink that is opaque when exposed to the light both within and outside the predetermined wavelength range;

wherein the second section ink is coated in relation to the at least one portion of the identifying indicia so that the second section ink is visible and opaque but does not obscure the at least one portion of the identifying indicia when the ink layer is exposed to the light outside the predetermined wavelength range.

2. The object as defined in claim 1 wherein the first section is contiguous with the second section.

3. The object as defined in claim 1 wherein the first section ink includes a material which transmits light when exposed to at least one of a wavelength above about 700 nm or a wavelength below about 400 nm, and wherein the second section ink includes a material that at least one of reflects light or absorbs light when exposed to at least one of a wavelength above about 700 nm or a wavelength below about 400 nm.

4. The object as defined in claim 1 wherein the predetermined wavelength range comprises the visible spectrum and wherein the first section ink is substantially transparent when exposed to the light outside the visible spectrum.

5. The object as defined in claim 1 wherein the ink of the identifying indicia comprises a material that at least one of reflects and absorbs at least one of visible light, ultraviolet light, infrared light, or combinations thereof.

6. The object as defined in claim 1 wherein the identifying indicia is at least one of alphanumeric indicia, graphical indicia, color indicia, or combinations thereof.

7. The object as defined in claim 1 wherein the ink layer has a thickness ranging between about 1 micron and about 100 microns.

8. The object as defined in claim 1 wherein the ink layer comprises a plurality of colors, and wherein each of the plurality of colors corresponds to at least one of an alphanumeric character or a graphical character, the ink layer thereby providing a second identifying indicia.

9. An object, comprising:

a surface;

an indicia in contact with the surface, the indicia including an ink, having pigments therein, that is opaque when exposed to light both inside and outside a predetermined wavelength range; and

an ink layer established on at least one portion of the indicia and obscuring the portion of the indicia when exposed to light within the predetermined wavelength range, the ink layer including;

a first section including a first section ink that obscures the at least one portion of the indicia when exposed to the light within the predetermined wavelength range, but is substantially transparent and thus reveals the at least one portion of the indicia when exposed to light outside the predetermined wavelength range; and

a second section including a second section ink that is opaque when exposed to the light both inside and outside the predetermined wavelength range;

wherein the second section ink is coated in relation to the at least one portion of the indicia so that the second section ink is substantially opaque and visible but does not obscure the at least one portion of the indicia when exposed to the light outside the predetermined wavelength range.

10. The object as defined in claim 9 wherein the object is selected from consumer packaged goods, computers, computer components, printers, print cartridges, paper, packaging materials, toys, games, car and airplane parts, documents, posters, art works, images, videos, images in multi-media entertainment, images in digital entertainment, tickets, brochures, or combinations thereof.

11. The object as defined in claim 9 wherein the predetermined wavelength range comprises the visible spectrum and wherein the first section ink is substantially transparent when exposed to the light outside the visible spectrum;

and the second section ink is opaque when exposed to the light outside the visible spectrum.

12. The object as defined in claim 11 wherein the first section ink and the second section ink are substantially the same color in the visible spectrum.

13. The object as defined in claim 11 wherein the first section ink includes a material that transmits light when exposed to at least one of a wavelength above about 700 nm or a wavelength below about 400 nm and wherein the second section ink includes a material that at least one of reflects or absorbs light when exposed to at least one of a wavelength above about 700 nm or a wavelength below about 400 nm.

14. The object as defined in claim 11 wherein the first section ink and the second section ink are different colors.

15. The object as defined in claim 9 wherein the indicia is at least one of alphanumeric indicia, graphical indicia, color indicia, or combinations thereof.

16. The object as defined in claim 9 wherein the ink of the indicia comprises a material that at least one of reflects or absorbs at least one of visible light, ultraviolet light, infrared light, or combinations thereof.

17. The object as defined in claim 9 wherein the ink layer comprises a plurality of colors, and wherein each of the plurality of colors corresponds to at least one of an alphanumeric character and a graphical character, the ink layer thereby providing a second indicia.

18. An object, comprising:

an identifying indicia established on the object, the identifying indicia including an ink, having pigments therein, that is opaque when exposed to light both inside and outside a predetermined wavelength range; and

an ink layer established on at least a portion of a surface of the object and on the identifying indicia, the ink layer comprising a plurality of colors, each of the plurality of colors corresponding to at least one of alphanumeric characters or graphical characters, the ink layer thereby providing an encrypted indicia when exposed to light within a predetermined wavelength range;

wherein the ink layer includes;

a first section including a first section ink established on the identifying indicia, the first section ink being opaque when exposed to the light within the predetermined wavelength range and substantially transparent when exposed to light outside the predetermined wavelength range; and

a second section including a second section ink established on the object, the second section ink being opaque when exposed to the light both inside and outside the predetermined wavelength range, the first section ink revealing the identifying indicia when exposed to light outside the predetermined wavelength range.

19. The object as defined in claim 18 wherein the ink layer contacts about one square inch of the object, wherein the plurality of colors includes six colors, and wherein the number of alphanumeric characters ranges in number between about 200 and about 20,000.