Method of making an RFID article

• US 7,901,533 B2
• Filed: 06/28/2007
• Issued: 03/08/2011
• Est. Priority Date: 06/30/2006
• Status: Active Grant

• Current Assignee: Tamarack Products Incorporated
• Original Assignee: Tamarack Products Incorporated
• Inventors: Steidinger, David J.
• Primary Examiner(s): Tucker; Philip C
• Assistant Examiner(s): Chan; Sing P
• Application Number:
  US11/770,398
• Publication Number:
  US 20080088448A1
• Time in Patent Office: 1,349 Days
• Field of Search: 156/247, 156/265, 156/277, 156/278, 156/289, 156/299, 156/301, 156/302, 340/572.1, 340/572.4, 3405727-5729, 340/10.4, 343/719, 343/787, 428/40.1, 428/41.3
• US Class Current: 156/247
• CPC Class Codes: G06K 19/07718 the record carrier being manufactured in a continuous process, e.g. using endless rolls
• CPC Class Codes: G06K 19/07728 the record carrier comprising means for protection against impact or bending, e.g. protective shells or stress-absorbing layers around the integrated circuit
• 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 7/10178 including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field comparable booster antennas integrated on the record carrier itself G06K19/07794
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: Y10T 156/1075 of plural laminae from single stock and assembling to each other or to additional lamina
• CPC Class Codes: Y10T 156/1077 Applying plural cut laminae to single face of additional lamina
• CPC Class Codes: Y10T 156/1097 Lamina is running length web
• CPC Class Codes: Y10T 156/1702 For plural parts or plural areas of single part

Abstract

A method and apparatus for making an RFID article such as a label, tag, ticket, envelope, carton, inlay, etc., including a microchip connected to a first antenna which is, in turn, electro-magnetically and coupled to a second antenna.

Claims

1. In an in-line method of making an RFID article, the steps comprising:

conveying a first web having a plurality of kernel inlays carried on a surface of the first web, each kernel inlay including an electronic chip electrically coupled to a first antenna;

conveying a carrier web having a plurality of second antennas spaced longitudinally on a first surface of the carrier web;

dividing the first web into individual sections each including a kernel inlay;

thereafter applying the divided sections of said first web each having a respective kernel inlay thereon to the carrier web in predetermined positions relative to, and in operative electromagnetic communication with an associated one of the second antennas, wherein each kernel inlay is disposed on the first surface of said carrier web in an offset manner from an associated second antenna.

2. The method of claim 1 wherein said kernel inlays are spaced apart uniformly on the surface of the first web.

3. The method of claim 2 wherein the carrier web is a tagstock.

4. The method of claim 2 wherein the carrier web is a tagstock and further comprising the step of applying a laminating layer to cover the kernel inlays and second antennas.

5. The method of claim 2 wherein the carrier web is label face stock and further comprising the step of continuously applying adhesive-coated liner to the label face stock to cover the kernel inlays and second antennas.

6. A method of making an RFID article from label facestock having a first surface and an opposing surface, said method comprising:

unwinding the label facestock from a source roll;

forming a plurality of second antennas on said opposing surface of said label facestock in a first repeat;

thereafter applying individual active kernels, each including a microchip and a first antenna to said opposing surface of said label facestock in an offset manner to, and in operative electromagnetic communication with, an associated second antenna;

applying a release liner on the opposing surface of said facestock.

7. The method of claim 6 wherein said step of forming a plurality of second antennas comprises printing a series of second antennas on the opposing surface of said label facestock.

8. The method of claim 6 further comprising applying adhesive to said active kernels before applying them to the label facestock.

9. The method of claim 6 wherein each active kernel includes a base layer of poly film carrying said microchip and a metallic loop antenna.

10. The method of claim 6 further comprising the step of applying an adhesive coating to said opposing surface of said facestock prior to application of said active kernels thereto, wherein said step of applying active kernels comprises contacting said adhesive coated opposing surface of said label facestock with said active kernels.

11. The method of claim 10 further comprising a step of applying glue to an exposed surface of said active kernel after applying said active kernel to said adhesive coated surface of said label facestock.