Method of making tamper evident and counterfeit resisting informational article

• US 5,595,624 A
• Filed: 11/17/1994
• Issued: 01/21/1997
• Est. Priority Date: 07/17/1992
• Status: Expired due to Term

• Current Assignee: OpSec Security Group, Inc.
• Original Assignee: Optical Security Group, Inc. (Applied Holographics PLC)
• Inventors: Curiel, Yoram
• Primary Examiner(s): Simmons, David A.
• Assistant Examiner(s): GRAY, LINDA LAMEY
• Application Number:
  US08/341,662
• Time in Patent Office: 796 Days
• Field of Search: 156/277, 156/245, 156/275.5, 156/275.7, 156/289
• US Class Current: 156/277
• CPC Class Codes: B41M 3/14 Security printing securities B42D25/29
• CPC Class Codes: B42D 2035/08 Alphanumerical data
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/20 characterised by a particular use or purpose
• CPC Class Codes: B42D 25/328 Diffraction gratings; Holograms
• CPC Class Codes: G09F 3/0292 tamper indicating labels
• CPC Class Codes: Y10S 283/901 Concealed data
• CPC Class Codes: Y10S 283/902 Anti-photocopy
• CPC Class Codes: Y10S 40/91 Automobile license identification
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

A method of protecting an informational article, on which variable information is inserted, from photocopy duplication and alteration. The method comprises providing an informational article substrate having a zone for inserting the variable information and a refractive image disposed within the zone. The variable information is inserted in the zone, and transparent tape is secured over the variable information. The transparent tape has a write-resistant exposed surface. The refractive image will resist photocopy duplication of the variable information article, and the write-resistant exposed surface will resist alteration of the inserted variable information.

Claims

1. A method of protecting an informational article comprising:

providing an article having a first zone for inserting information and a pattern disposed within said zone;

inserting information in said zone;

securing a transparent tape over said information, whereby said pattern will resist photocopy duplication of said article and said tape will resist alteration of said inserted information;

employing a refractive image as said pattern;

employing a hologram as said refractive image;

providing on said tape a coating of a silicone resin on the exposed surface thereof;

providing about 2 1/2 to 10 percent by weight wax in said silicone resin;

employing a polytetrafluoroethylene wax as said wax;

adhesively bonding said tape over said inserted information;

adhesively bonding a portion of said tape to said article prior to inserting said information; and

inserting said information by manual or printing means.

2. The method of claim 1 including

employing said method on a paper or paperboard article which has printed information in regions other than said zone.

3. The method of claim 2 including

employing said method to create a temporary vehicle registration.

4. A method of protecting an informational article, on which variable information is inserted, from photocopy duplication and alteration, said method comprising:

providing an informational article substrate having a zone for inserting said variable information and a refractive image disposed within said zone;

inserting said variable information in said zone;

securing a transparent tape having a write-resistant exposed surface over said variable information, whereby said refractive image will resist photocopy duplication of said informational article and said write-resistant exposed surface will resist alteration of said inserted variable information; and

adhesively bonding a portion of said tape to said informational article prior to inserting said variable information.

5. The method of claim 4, including

employing a hologram as said refractive image.

6. The method of claim 5, including

providing on said tape a coating of a silicone resin on the exposed surface thereof.

7. The method of claim 6 including

providing about 2 1/2 to 10 percent by weight wax in said silicone resin.

8. The method of claim 7, including

employing a polytetrafluoroethylene wax as said wax.

9. The method of claim 8, including

adhesively bonding said tape over said inserted variable information.

10. The method of claim 9, including

employing said method on a paper or paperboard article which has printed information in regions other than said zone.