Security printing and security documents produced thereby

Patent metadata

Field	Value
Publication number	US-10703128-B2
Application number	US-201815889977-A
Country	US
Kind code	B2
Filing date	Feb 6, 2018
Priority date	Feb 6, 2018
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A security document includes a first ink layer and a second ink layer. The first ink layer includes a first color in a first color zone and a second color in a second color zone offset from the first color zone in a first direction, and a first blended color including a mixture of the first and second colors in a first blended color zone between the first color zone and the second color zone. The second ink layer includes a third color in a third color zone and a fourth color in a fourth color zone offset from the third color zone in a second direction, and a second blended color including a mixture of the third and fourth colors in a second blended color zone between the third color zone and the fourth color zone. The first direction is different than the second direction.

First claim

What is claimed is:

1. A security document printed by a split ink fountain printing device, the security document comprising:
a first ink layer comprising a first color in a first color zone and a second color in a second color zone offset from the first color zone in a first direction, and a first blended color zone comprising a mixture of the first and second colors, the first blended color zone being between the first color zone and the second color zone; and
a second ink layer comprising a third color in a third color zone and a fourth color in a fourth color zone offset from the third color zone in a second direction, and a second blended color zone comprising a mixture of the third and fourth colors, the second blended color zone being between the third color zone and the fourth color zone;
wherein the first direction is different from the second direction; and
wherein the first ink layer overlaps the second ink layer on the security document, such that the first blended zone at least partially overlaps the second blended zone producing a blended area of overlap comprising a combination of the first, second, third, and fourth colors.

2. The security document of claim 1 , wherein the first ink layer comprises a fifth color in a fifth color zone offset from the second color zone in the first direction and a third blended color zone comprising a mixture of the second and fifth colors, the third blended color zone being between the second color zone and the fifth color zone.

3. The security document of claim 2 , wherein the first color and the fifth color are the same color.

4. The security document of claim 2 , wherein the first color and the fifth color are different colors.

5. The security document of claim 2 , wherein the first blended color zone substantially mirrors the third blended color zone about an axis of the security document.

6. The security document of claim 2 , wherein the first blended color zone comprises a color that is unique from the first, second, third, fourth, and fifth colors of the security document.

7. The security document of claim 2 , wherein the third blended color zone comprises a color that is unique from the first, second, third, fourth, and fifth colors of the security document.

8. The security document of claim 2 , wherein the first blended color zone comprises a color that is the same as a color in the third blended color zone and that same color is unique from the first, second, third, fourth, and fifth colors of the security document.

9. The security document of claim 1 , wherein the first blended color zone comprises a color that is unique from the first, second, third, and fourth colors of the security document.

10. The security document of claim 1 , wherein the second ink layer comprises a sixth color in a sixth color zone offset from the fourth color zone in the second direction and a fourth blended color zone comprising a mixture of the fourth and sixth colors, the fourth blended color zone being between the fourth color zone and the sixth color zone.

11. The security document of claim 10 , wherein the fourth color and the sixth color are the same color.

12. The security document of claim 10 , wherein the fourth color and the sixth color are different colors.

13. The security document of claim 10 , wherein the second blended color zone substantially mirrors the fourth blended color zone about an axis of the security document.

14. The security document of claim 10 , wherein each of the second blended color zone and the fourth blended color zone comprise a color that is unique from the first, second, third, fourth, and sixth colors of the security document.

15. The security document of claim 1 , wherein the second blended color zone comprises a color that is unique from the first, second, third, and fourth colors of the security document.

16. The security document of claim 1 , wherein the first direction is perpendicular to the second direction.

17. A security document comprising:
a first ink layer comprising a first plurality of color zones located adjacent one another in a first direction, adjacent pairs of the first color zones including different colors, and at least one first blended color zone disposed between an adjacent pair of the first color zones, the at least one first blended color zone comprising a first blended color that is a mixture of first and second colors of the adjacent pair of the first color zones; and
a second ink layer comprising a second plurality of color zones located adjacent one another in a second direction, adjacent pairs of the second color zones including different colors, and at least one second blended color zone disposed between an adjacent pair of the second color zones, the at least one second blended color zone comprising a second blended color that is a mixture of third and fourth colors of the adjacent pair of the second color zones,
wherein the first ink layer overlaps the second ink layer on the security document, such that the first blended color at least partially overlaps the second blended color producing a blended area of overlap comprising a combination of the first, second, third, and fourth colors.

18. The security document of claim 17 , wherein:
the adjacent pairs of the first color zones are offset from each other in a first direction; and
the adjacent pairs of the second color zones are offset from each other in a second direction.

19. The security document of claim 18 , wherein the first direction is different from the second direction.

20. The security document of claim 19 , wherein the first direction is perpendicular to the second direction.

21. The security document of claim 19 , wherein the first direction is in a direction of a first axis of the security document and the second direction is in a direction of a second axis of the security document.

22. The security document of claim 17 , further comprising a third blended color zone disposed between another adjacent pair of the first color zones, the third blended color zone comprising a third blended color that is a mixture of fifth and sixth colors of the another adjacent pair of the first color zones.

23. The security document of claim 22 , further comprising a fourth blended color zone disposed between another adjacent pair of the second color zones, the fourth blended color zone comprising a fourth blended color that is a mixture of seventh and eighth colors of the another adjacent pair of the second color zones.

Assignees

• Assa Abloy Ab

Inventors

• Mercier Frantz

Classifications

• B41M3/14

  Security printing {(securities B42D25/29)} · CPC title

• B42D25/405

  Marking · CPC title

• B42D25/378 Primary

  Special inks · CPC title

• B44F1/08

  characterised by colour effects · CPC title

• B41M1/18

  Printing one ink over another · CPC title