Deactivatable RFID labels and tags and methods of making same

• US 7,893,839 B2
• Filed: 04/04/2008
• Issued: 02/22/2011
• Est. Priority Date: 11/23/2005
• Status: Active Grant

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Corporation
• Inventors: Kessler, John R.
• Primary Examiner(s): Previl; Daniel
• Application Number:
  US12/062,737
• Publication Number:
  US 20080180251A1
• Time in Patent Office: 1,054 Days
• Field of Search: 340/572.3, 3405721-5722, 3405724-5729, 340/10.42, 340/825.49
• US Class Current: 340/572.3
• CPC Class Codes: G06K 19/07345 by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
• CPC Class Codes: G06K 19/07381 with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
• CPC Class Codes: G08B 13/2417 having a radio frequency identification chip
• CPC Class Codes: G08B 13/244 Tag manufacturing, e.g. continuous manufacturing processes

Abstract

Disclosed are deactivatable RFID labels and tags in individual and web form, and methods of making same. When it is desired to deactivate the label or tag, the tag or label is subjected to tearing. One arrangement involves providing the label or tag with a tear strip by which the RFID transponder in the label or tag is destroyed, and in another arrangement a tag can be torn along a weakening line to destroy the RFID transponder.

Claims

1. Method of making a web of deactivatable RFID tags, comprising:

providing a longitudinally extending first web of tag stock,

applying RFID transponders at spaced apart locations on the web,

applying a tear strip web across all the transponders, and

thereafter laminating a second web of tag stock the first web with the transponders and the tear strip web sandwiched between the first and second webs to provide a web of tags,

wherein each tag includes a tear strip formed from a portion of the tear strip web and at least one of the RFID transponders, said tear strip being selectively torn from the tag and thereby physically tearing the RFID transponder included in the tag to deactivate the RFID transponder.

2. Method as defined in claim 1, including

providing telltale indicators for the tags on one side of the tags so that when the tear strip is used, the tear strip will tear through the transponder.

3. Method as defined in claim 1, including:

at least partially severing the tear strip between adjacent transponders to define tags so that when the tear strip is in use the tear strip will tear through the transponder.

4. A web of deactivatable RFID tags, comprising:

a layer of tag stock formed into a plurality of individual tags,

a web of tag stock to which the tags are laminated,

a plurality of spaced apart RFID transponders sandwiched between the layer of tag stock and the web of tag stock, said RFID transponders being spaced apart from one another such that each individual tag includes at least one RFID transponder, and

a plurality of tear strips formed from a tear strip web crossing all the transponders, each individual tag including at least one tear strip, said tear strip being selectively torn from the tag and thereby physically tearing the RFID transponder included in the tag to deactivate the RFID transponder.

5. The web of claim 4, further comprising:

a layer of pressure sensitive adhesive that removably adheres the tags to the web of tag stock.

6. The web of claim 4, wherein the web of tag stock comprises a release liner to which the tags are removably adhered.