Webs and methods of making same

• US 20060244603A1
• Filed: 10/26/2005
• Published: 11/02/2006
• Est. Priority Date: 04/27/2005
• Status: Active Grant

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Inventors: Kline, James R.
• Granted Patent: US 7,842,156 B2
• Time in Patent Office: Days
• US Class Current: 340/572.700
• CPC Class Codes: G06K 19/07718 the record carrier being manufactured in a continuous process, e.g. using endless rolls
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07752 using an interposer
• CPC Class Codes: G06K 19/0776 the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• CPC Class Codes: H01Q 1/2208 associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: Y10T 156/1052 with cutting, punching, tearing or severing
• CPC Class Codes: Y10T 156/1056 Perforating lamina
• CPC Class Codes: Y10T 156/1057 Subsequent to assembly of laminae
• CPC Class Codes: Y10T 156/1084 of continuous or running length bonded web
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

There are disclosed methods of making RFID transponder webs and intermediate webs such as RFID strap webs and antenna webs, as well as such webs per se.

Claims

1. A composite RFID strap web, comprising:

a wide web of RFID straps in longitudinally extending columns along the wide web and in transversely extending rows across the wide web,

and a composite adhesive web comprising a flexible carrier web, a release coating on one side of the carrier web, a thermoplastic, electrically conductive adhesive releasably adhered to the release coating, the adhesive being adhered to all the straps on the wide strap web, and the adhesive containing electrically conductive particles.

2. A composite RFID strap web, comprising:

a web of RFID straps having a single longitudinally column of straps, and

an adhesive web comprising a flexible carrier web, a release coating on one side of the carrier web, and a thermoplastic, electrically conductive adhesive releasably adhered to the release coating, the adhesive being adhered to all the straps on the strap web, and the adhesive containing electrically conductive particles.

3. Method of making narrow composite RFID strap webs, comprising:

providing a wide web of RFID straps in longitudinally extending columns along the wide web and in transversely extending rows across the wide web,

providing a wide web of thermoplastic adhesive containing electrically conductive particles,

adhering the wide web of adhesive to the wide strap web to provide a wide composite strap web by heating the adhesive sufficiently to adhere the adhesive to the wide strap web, and

slitting the wide composite strap web longitudinally into narrow composite strap webs.

4. Method as defined in claim 3, including:

severing the straps from the narrow strap webs, and

electrically connecting the straps to antennas to provide transponders.

5. Method as defined in claim 4,

wherein the electrically connecting step includes heating the adhesive to a higher temperature than was used to adhere the adhesive to the wide strap web.

6. Method as defined in claim 5, wherein pressure is used in electrically connecting the straps to the antennas.

7. Method as defined in claim 3, where the conductive adhesive comprises a heat seal adhesive.

8. Method as defined in claim 3, wherein the step of providing a wide web of thermoplastic adhesive includes providing a wide flexible web having opposite first and second sides coated with a release coating with the adhesive web applied to the release coating at the first side.

9. Method as defined in claim 8, including:

severing the strap from the narrow strap webs, and

electrically connecting the straps to antennas to provide transponders.

10. Method as defined in claim 9, wherein pressure is used in electrically connecting the straps to the antennas.

11. Method as defined in claim 9,

wherein the electrically connecting step includes heating the adhesive to a higher temperature than was used to adhere the adhesive to the wide web.

12. Method as defined in claim 8,

wherein pressure is used in electrically connecting the straps to the antennas.