Anti-tamper tag with theft protection

• US 5,884,425 A
• Filed: 03/10/1998
• Issued: 03/23/1999
• Est. Priority Date: 05/23/1997
• Status: Expired due to Term

• Current Assignee: Avery Dennison Corporation
• Original Assignee: Avery Dennison Corporation
• Inventors: Baldwin, John
• Primary Examiner(s): Hofsass, Jeffery A.
• Assistant Examiner(s): Lee, Benjamin C.
• Application Number:
  US09/037,754
• Time in Patent Office: 378 Days
• Field of Search: 340/572, 40/630, 40/638, 283/101, 283/108, 428/42.3
• US Class Current: 40/638
• CPC Class Codes: G09F 3/0292 tamper indicating labels
• CPC Class Codes: G09F 3/0341 having label sealing means
• CPC Class Codes: Y10T 428/1495 Adhesive is on removable layer

Abstract

An anti-tamper tag arrangement includes a release liner and a thin film strip having first and second sides and a longitudinal direction. The thin film strip has a tear weakness in the longitudinal direction and a resistance to tear in a direction transverse to the longitudinal direction, the first side of the thin film strip has a first region containing a pair of parallel slits extending in the longitudinal direction of the thin film strip and a transverse slit connecting the pair of parallel slits to form a tear strip and a second region for being printed with variable print information located outside of the first region and being in a longitudinal tear path of the tear strip defined by the pair of parallel slits. A coating of pressure-sensitive adhesive is deposited on the second side of the thin film strip. The thin film strip is removably fixed to the release liner by the adhesive coating. The thin film strip with its coating of pressure-sensitive adhesive is releasable from the release liner without tearing the tear strip and the adhesive coating has sufficient tack to adhere to a surface different from the release liner so that when the thin film strip is removed from the different surface the tear strip remains attached to the different surface and tears along the longitudinal tear path.

Claims

1. An anti-tamper tag arrangement, comprising:

a release liner;

a thin film strip having first and second sides and a longitudinal direction, the thin film strip having a tear weakness in the longitudinal direction and a resistance to tear in a direction transverse to the longitudinal direction, the first side of the thin film strip having a first region containing a pair of parallel slits extending in the longitudinal direction of the thin film strip and a transverse slit connecting the pair of parallel slits to form a tear strip, and a second region for being printed with variable print information located outside of the first region and being in a longitudinal tear path of the tear strip defined by the pair of parallel slits; and

a coating of pressure-sensitive adhesive deposited on the second side of the thin film strip, the thin film strip being removably fixed to the release liner by the adhesive coating, wherein the thin film strip with its coating of pressure-sensitive adhesive is releasable from the release liner without tearing the tear strip and the adhesive coating has sufficient peel strength to adhere to a surface different from the release liner so that when the thin film strip is removed from the different surface the tear strip remains attached to the different surface and tears along the longitudinal tear path.

2. The anti-tamper tag arrangement according to claim 1, wherein the transverse slit is curved.

3. The anti-tamper tag arrangement according to claim 1, wherein the transverse slit is semi-circular.

4. The anti-tamper tag arrangement according to claim 1, wherein the pair of parallel slits has opposite ends and the transverse slit is connected to the opposite end of the pair of parallel slits that is remote from the second region.

5. The anti-tamper tag arrangement according to claim 1, wherein the thin film strip comprises a monoaxially oriented polyolefin material oriented in the longitudinal direction.

6. The anti-tamper tag arrangement according to claim 1, wherein the release liner is elongated and has a longitudinal direction, and the thin film strip includes a plurality of thin film strips releasably fixed to the release liner adjacent one another in the longitudinal direction of the elongated release liner.

7. The anti-tamper tag arrangement according to claim 1, wherein the thin film strip comprises an opaque barrier.

8. The anti-tamper tag arrangement according to claim 1, wherein the tear strip includes a plurality of like-configured tear strips extending in the longitudinal direction.

9. The anti-tamper tag arrangement according to claim 8, wherein the plurality of like-configured tear strips are laterally spaced from one anther across the thin film strip in a direction transverse to the longitudinal direction.

10. The anti-tamper tag arrangement according to claim 8, wherein the plurality of like-configured tear strips comprises a first set of tear strips and the anti-tamper tag includes a third region disposed on a side of the second region remote from the first region and containing a second set of like-configured-tear strips, the first and second sets of tear strips each being oriented to tear in the longitudinal direction toward the second region.

11. The anti-tamper tag arrangement according to claim 1, wherein the thin film strip is elongated and has first and second portions spaced apart from one another in the longitudinal direction of the thin film strip, the first and second regions of the first side of the thin film strip being located within the first portion, the second side of the second portion constituting the different surface so that when the release liner is removed from the first and second portions, the first and second portions can be adhered to one another to form a loop of the thin film strip between the first and second portions.

12. The anti-tamper tag arrangement according to claim 11, wherein the release liner attached to the second side of the thin film strip has first and second scores transverse to the longitudinal direction and spaced apart from one another to define a central portion of the release liner and first and second portions of the release liner on opposite sides of the central portion, the first and second portions of the release liner being separable from the central portion of the release liner to expose the adhesive on the first and second portions of the thin film strip.

13. The anti-tamper tag arrangement according to claim 11, and further including a line of perforations in the thin film strip disposed between opposite longitudinal ends of thin film strip to define a fold line.

14. The anti-tamper tag arrangement according to claim 11, including a plurality of the thin film strips releasably attached to the release liner adjacent to one another in the longitudinal direction.

15. The anti-tamper tag arrangement according to claim 11, wherein the first portion of the thin film strip has a free end and the second region of the thin film strip is disposed between the first end region and the free end of the first portion of the thin film strip.

16. The anti-tamper tag arrangement according to claim 15, further including a plurality of parallel slits extending from the free end of the first portion of the thin film strip in the longitudinal direction.

17. The anti-tamper tag arrangement according to claim 11, wherein the tag has a central portion having a perimeter defined by first and second central side portions and the first and second portions, the first and second central side portions of the tag being cut away from the tag.

18. The anti-tamper tag arrangement according to claim 17, wherein the first, second, and central portions of the release liner are separable to expose the adhesive on the first, second, and central portions of the thin film strip.

19. The anti-tamper tag arrangement according to claim 11, further including a thin electronic protection circuit for activating an alarm when in proximity of a detector and being disposed between the release liner and the second side of the thin film strip and adhering to the thin film strip by the pressure-sensitive adhesive.

20. The anti-tamper tag arrangement according to claim 19, wherein the thin electronic circuit is located within an area of one of the first and second portions of the thin film strip.

21. The anti-tamper tag arrangement according to claim 20, wherein the thin electronic circuit has an area that is less than an area of the one portion of the thin film strip and is centrally disposed within said one portion.