Label for receiving indicia having variable spectral emissivity values
First Claim
1. A label comprising:
- a substrate;
an indicium located above the substrate, the indicium comprising;
a first printed ink comprising a first thermal emissivity value; and
a second printed ink comprising a second thermal emissivity value different from the first thermal emissivity value; and
a separate background layer located between the substrate and the indicium and comprising a third thermal emissivity value, wherein the first printed ink, the second printed ink, and at least a portion of the background layer are configured to encode information based on the first thermal emissivity value, the second thermal emissivity value, and the third thermal emissivity value, and wherein at least another portion of the background layer extends beyond the first printed ink and the second printed ink.
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Accused Products
Abstract
Labels that are conducive to the detection of bar-codes and other indicia having varying spectral emissivity values are provided. The labels include a substrate, a background layer, a thermally conductive layer and an adhesive layer. The background layer is preferably similar in visual appearance to the indicium that the label is to receive. Meanwhile, the thermally conductive layer is made from a material with high thermal conductivity that is used to substantially equalize the temperature across the label surface, thereby enabling a faster and cheaper detection of transitions of differential emissivity on the indicium surface. The adhesive layer is used for attaching the label to a document or other product.
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Citations
28 Claims
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1. A label comprising:
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a substrate; an indicium located above the substrate, the indicium comprising; a first printed ink comprising a first thermal emissivity value; and a second printed ink comprising a second thermal emissivity value different from the first thermal emissivity value; and a separate background layer located between the substrate and the indicium and comprising a third thermal emissivity value, wherein the first printed ink, the second printed ink, and at least a portion of the background layer are configured to encode information based on the first thermal emissivity value, the second thermal emissivity value, and the third thermal emissivity value, and wherein at least another portion of the background layer extends beyond the first printed ink and the second printed ink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A label for use with a product, the label comprising:
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a substrate that is integrated into a product; an indicium, located above the substrate, comprising; a first printed ink comprising a first thermal emissivity value; and a second printed ink comprising a second thermal emissivity value different from the first thermal emissivity value; and a background layer residing between the substrate and the indicium and comprising a third thermal emissivity value, wherein the first printed ink, the second printed ink, and at least a portion of the background layer are configured to encode information based on the first thermal emissivity value, the second thermal emissivity value, and the third thermal emissivity value, and wherein at least another portion of the background layer extends beyond the first printed ink and the second printed ink. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for producing a label, the method comprising:
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providing a substrate; applying a background layer to the provided substrate; locating an indicium on the applied background layer, the indicium comprising; a first printed ink comprising a first thermal emissivity value; and a second printed ink comprising a second thermal emissivity value different from the first thermal emissivity value, wherein; the applied background layer comprises a third thermal emissivity value; and the first printed ink, the second printed ink, and at least a portion of the applied background layer together form a two dimensional pattern that encodes information based on the first thermal emissivity value, the second thermal emissivity value, and the third thermal emissivity value. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification