Surface-printable RFID-transponders
First Claim
Patent Images
1. An RFID transponder comprising:
- (a) a polymer film having a first surface and a second surface which oppose each other and act as a substrate for receiving at least one antenna and a circuit chip electrically connected thereto such that said antenna and said circuit chip are attached to one of the surfaces of said polymer film;
(b) a printable layer disposed on the first surface of said polymer film wherein the printable layer has a particular pigment and a film forming binder disposed thereon to provide a printable surface;
(c) one side of an adhesive layer disposed on the second surface of said polymer film; and
(d) a cover layer disposed on a second side of the adhesive layer opposite to the one side of the adhesive layer disposed on the second surface of said polymer film.
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Abstract
RFID transponders having a polymer film as the support for at least one antenna and having a circuit chip electrically connected thereto, possessing on one surface of the polymer film a printable/writable layer comprising particulate pigment and film forming binder and on the opposite surface of the polymer film an adhesive layer covered with a cover layer. The directly printable RFID transponders are useful as labels, especially pressure-sensitive adhesive labels or tags for labelling goods for transportation, containers or textiles, or else with indetachable cover as identification cards or access authorization cards.
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Citations
25 Claims
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1. An RFID transponder comprising:
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(a) a polymer film having a first surface and a second surface which oppose each other and act as a substrate for receiving at least one antenna and a circuit chip electrically connected thereto such that said antenna and said circuit chip are attached to one of the surfaces of said polymer film;
(b) a printable layer disposed on the first surface of said polymer film wherein the printable layer has a particular pigment and a film forming binder disposed thereon to provide a printable surface;
(c) one side of an adhesive layer disposed on the second surface of said polymer film; and
(d) a cover layer disposed on a second side of the adhesive layer opposite to the one side of the adhesive layer disposed on the second surface of said polymer film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A plurality of RFID transponders comprising:
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(a) a continuous polymer film strip in a running direction having a first surface and a second surface which oppose each other and act as a substrate for receiving at least one antenna and a circuit chip electrically connected thereto such that said antenna and said circuit chip is attached to one of the surfaces of said polymer film strip;
(b) a printable layer disposed on the first surface of said polymer film strip wherein the printable layer has a particulate pigment and a film forming binder disposed thereon to provide a printable surface;
(c) one side of an adhesive layer disposed on the second surface of said polymer film strip;
(d) a cover layer disposed on a second side of the adhesive layer opposite to the one side of the adhesive layer disposed on the second surface of said polymer film strip; and
(e) wherein said RFID transponders are formed at a distance from one another in the running direction of said polymer film strip. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification