Environmentally friendly radio frequency identification (RFID) labels and methods of using such labels
First Claim
1. An environmentally friendly radio frequency identification (RFID) label, comprising:
- a substrate including a first major surface and a second major surface opposite the first major surface;
an RFID antenna attached to the first major surface of the substrate, wherein the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof;
an integrated circuit attached to the antenna; and
a first layer of repulpable adhesive attached to the substrate.
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Abstract
An environmentally friendly radio frequency identification (RFID) label. One embodiment of the invention provides an environmentally friendly radio frequency identification (RFID) label, comprising: a substrate including a first major surface and a second major surface opposite the first major surface; an RFID antenna attached to the first major surface of the substrate, where the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof; an integrated circuit attached to the antenna; and a first layer of repulpable adhesive attached to the substrate. The present invention also provides methods using environmentally friendly radio frequency identification (RFID) labels.
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Citations
23 Claims
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1. An environmentally friendly radio frequency identification (RFID) label, comprising:
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a substrate including a first major surface and a second major surface opposite the first major surface;
an RFID antenna attached to the first major surface of the substrate, wherein the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof;
an integrated circuit attached to the antenna; and
a first layer of repulpable adhesive attached to the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An environmentally friendly radio frequency identification (RFID) label, comprising:
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a substrate including a first major surface and a second major surface opposite the first major surface;
an RFID antenna attached to the first major surface of the substrate, wherein the RFID antenna contains no significant amounts of regulated metal;
an integrated circuit attached to the antenna; and
a first layer of repulpable adhesive attached to the substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of recycling objects, comprising the steps of:
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providing an object having an environmentally friendly radio frequency identification (RFID) label attached to the object, wherein the environmentally friendly RFID label comprises;
a substrate including a first major surface and a second major surface opposite the first major surface;
an RFID antenna attached to the first major surface of the substrate, wherein the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof;
an integrated circuit attached to the antenna;
a first layer of repulpable adhesive attached to the substrate, wherein the first layer of repulpable adhesive attaches the RFID label to the object; and
pulping the object and the RFID label. - View Dependent Claims (19, 20)
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21. A method of recycling objects, comprising the steps of:
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providing an object in combination with an environmentally friendly radio frequency identification (RFID) tag, wherein the object comprises cellulose or wood-based material, wherein the environmentally friendly RFID tag comprises;
a substrate including a first major surface and a second major surface opposite the first major surface;
an RFID antenna attached to the first major surface of the substrate, wherein the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof;
an integrated circuit attached to the antenna; and
pulping the object and the environmentally friendly RFID tag. - View Dependent Claims (22, 23)
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Specification