Electromagnetic shielding label

Patent metadata

Field	Value
Publication number	US-9595211-B2
Application number	US-201314414811-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Jul 19, 2012
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

Provided is a shielding label comprising: a shield layer; a cover layer disposed on a first side of the shield layer, and a removable adhesive layer disposed on at least a portion of a second side of the shield layer, wherein the shield layer provides electro-magnetic shielding characteristics so as to prevent the exchange of data between an RFID article adjacent the shielding label and an external device when the component is located in the read range of the external device.

First claim

What is claimed is:

1. A shielding label comprising:
a shield layer;
a cover layer disposed on a first side of the shield layer, and
a removable adhesive layer disposed on only a portion of a second side of the shield layer such that a portion of the second side of the shield layer remains free of the removable adhesive, wherein the removable adhesive layer comprises a high tack adhesive sub-layer and a low tack adhesive sub-layer,
wherein the shield layer provides electromagnetic shielding characteristics so as to prevent the exchange of data between an RFID article adjacent the shielding label and an external device when the component is located in the read range of the external device.

2. The shielding label of claim 1 , wherein the removable adhesive layer covers more than half of the second side of the shield layer.

3. The shielding label of claim 1 , wherein the removable adhesive layer is patterned.

4. The shielding label of claim 1 , wherein the removable adhesive layer comprises a repositionable adhesive.

5. The shielding article of claim 1 wherein the removable adhesive layer comprises a double-sided adhesive tape.

6. The shielding label of claim 1 , wherein the removable adhesive layer comprises a pressure sensitive adhesive.

7. The shielding label of claim 1 , wherein the shield layer comprises a support layer and a conductive layer disposed on the support layer.

8. The shielding label of claim 7 , wherein the support layer comprises one of cellulosic paper or a polymer selected from the group consisting of polyester, polypropylene, polycarbonate, and polyethylene.

9. The shielding label of claim 7 , wherein the conductive layer comprises a layer of copper.

10. The shielding label of claim 7 , wherein the conductive layer comprises a layer of copper between a first layer of nickel and a second layer of nickel.

11. The shielding label of claim 7 , wherein the conductive layer comprises a layer of aluminum.

12. A shielding label comprising:
a shield layer;
a cover layer disposed on a first side of the shield layer;
a removable adhesive layer disposed on at least a portion of a second side of the shield layer, wherein the shield layer provides electromagnetic shielding characteristics so as to prevent the exchange of data between an RFID article adjacent the shielding label and an external device when the component is located in the read range of the external device
an adhesive layer between the shield layer and the cover layer, wherein the adhesive layer comprises at least one of a corrosion inhibitor and a conductive adhesive, wherein the removable adhesive layer comprises a high tack adhesive sub-layer and a low tack adhesive sub-layer.

13. The shielding label of claim 1 , wherein the cover layer comprises a film with embedded images.

14. A shielding label comprising:
a shield layer;
a cover layer disposed on a first side of the shield layer, and
an adhesive disposed on only a portion of a second side of the shield layer such that a portion of the second side of the shield layer remains free of the adhesive, wherein the removable adhesive layer comprises a high tack adhesive sub-layer and a low tack adhesive sub-layer,
wherein the shielding label is shaped to substantially cover an antenna in an RFID article, and wherein the shield layer provides electromagnetic shielding characteristics so as to prevent the exchange of data between the RFID article adjacent the shielding label and an external device when the RFID article and the shielding label are located in the read range of the external device.

15. The shielding label of claim 14 , wherein the RFID article comprises one of a credit card, an identification card, an insurance card, a timecard, a payment card, an entry card, a metro card, and a passport card.

16. A material suitable for use in a shielding label comprising:
a shield layer;
a cover layer disposed on a first side of the shield layer, and
a removable adhesive layer disposed on only a portion of a second side of the shield layer such that a portion of the second side of the shield layer remains free of the removable adhesive, wherein the removable adhesive layer comprises a high tack adhesive sub-layer and a low tack adhesive sub-layer,
wherein the shield layer provides electromagnetic shielding characteristics so as to prevent the exchange of data between an RFID article adjacent the shielding label and an external device when the component is located in the read range of the external device.

17. The material of claim 16 further comprising shaped shielding labels.

Assignees

• 3M Innovative Properties Co

Inventors

• Lim Jeffrey A
• Buchan Bryan E

Classifications

• G09F2003/0257

  Multilayer · CPC title

• G09F2003/0255

  laminated · CPC title

• G09F2003/023

  Adhesive · CPC title

• G09F2003/0208

  Indicia · CPC title

• B32B2519/02

  RFID tags · CPC title