DOCUMENT CONTAINING UV ABSORBING SECURITY MARK

• US 20140339808A1
• Filed: 05/17/2013
• Published: 11/20/2014
• Est. Priority Date: 05/17/2013
• Status: Abandoned Application

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Pawlik, Thomas D., Bose, Judith A.
• Application Number:
  US13/896,610
• Publication Number:
  US 20140339808A1
• Time in Patent Office: Days
• US Class Current: 283/85
• CPC Class Codes: B42D 2033/20 Coloured material; Pigments or inks
• CPC Class Codes: B42D 2035/16 Bars or lines
• CPC Class Codes: B42D 2035/26 Halftone or interference patterns
• CPC Class Codes: B42D 25/29 Securities; Bank notes
• CPC Class Codes: B42D 25/355 Security threads
• CPC Class Codes: B42D 25/387 absorbing or reflecting ultraviolet light
• CPC Class Codes: G07D 7/128 Viewing devices

Abstract

A document with a security marker includes a substrate comprising an optical brightener; a background comprising an ultraviolet (UV) absorbing material arranged in a first pattern of lines having a first frequency and a first orientation; and a security mark comprising the UV material arranged in a second pattern of lines having a second frequency and a second orientation.

Claims

1. A document with a security marker comprising:

a substrate comprising an optical brightener;

a background comprising an ultraviolet (UV) absorbing material arranged in a first pattern of lines having a first frequency and a first orientation; and

a security mark comprising the UV material arranged in a second pattern of lines having a second frequency and a second orientation.

2. The document of claim 1 wherein the predetermined security mark is selected from a group consisting of an image, a logo, a series of numbers or letters or both, a bar code, or a hash tag.

3. The document of claim 1 wherein the first orientation differs from the second orientation by at least 10 degrees.

4. The document of claim 1 wherein the orientation of a lenticular lens differs from either the first orientation or the second orientation by less than 5 degrees.

5. The document of claim 1 wherein the first frequency is equal to the second frequency.

6. The document of claim 1 wherein the first orientation is equal to the second orientation and the first and second frequencies are different.

7. The document of claim 1 wherein UV illumination directed at the security marker and a lenticular lens is used to authenticate the security mark.

8. The document of claim 1 wherein the frequency of the lenticular lens is a multiple of the first or second frequency.

9. The document of claim 7 wherein the frequency of the lenticular lens is equal to the first or second frequency.

10. The document of claim 7 wherein the authentication is a visual match with a predetermined security mark.

11. The document of claim 1 wherein an image capture device UV illumination directed at the security marker is used to authenticate the security mark.