Label for receiving indicia having variable spectral emissivity values
First Claim
1. A label comprising:
- a substrate comprising a first side and a second side;
an indicium located on the first side the substrate, the indicium comprising;
a first surface area comprising a first thermal emissivity value; and
a second surface area comprising a second thermal emissivity value, the second thermal emissivity value being different than the first thermal emissivity value;
a separate background layer located between the indicium and the substrate, the separate background layer comprising a third thermal emissivity value; and
an adhesive layer located on the second side of the substrate.
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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.
164 Citations
10 Claims
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1. A label comprising:
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a substrate comprising a first side and a second side; an indicium located on the first side the substrate, the indicium comprising; a first surface area comprising a first thermal emissivity value; and a second surface area comprising a second thermal emissivity value, the second thermal emissivity value being different than the first thermal emissivity value; a separate background layer located between the indicium and the substrate, the separate background layer comprising a third thermal emissivity value; and an adhesive layer located on the second side of the substrate. - View Dependent Claims (2, 3, 4)
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5. A label for use with a product, the label comprising:
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a substrate integrated into the product and comprising a first side and a second side; an indicium located on the first side of the substrate, the indicium comprising; a first surface area comprising a first thermal emissivity value; and a second surface area comprising a second thermal emissivity value, the second thermal emissivity value being different than the first thermal emissivity value; and a separate background layer located between the indicium and the substrate, the separate background layer comprising a third thermal emissivity value, wherein the first surface area, the second surface area, and at least a portion of the background layer are configured to encode information based on at least the first thermal emissivity value, the second thermal emissivity value, and the third thermal emissivity value. - View Dependent Claims (6)
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7. A label comprising:
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a substrate comprising a first side and a second side; an indicium located on the first side the substrate, the indicium comprising; a first ink comprising a first surface texture and a first thermal emissivity value; and a second ink comprising a second surface texture and a second thermal emissivity value; and a background layer located between the indicium and the substrate, the background layer comprising a third thermal emissivity value, wherein the first ink, the second 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 ink and the second ink. - View Dependent Claims (8, 9, 10)
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Specification