Label for receiving indicia having variable spectral emissivity values
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United States of America Patent
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Aug 5, 2008
Grant Date -
Oct 20, 2005
app pub date -
Apr 14, 2004
filing date -
Apr 14, 2004
priority date (Note) -
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status (Latency Note)
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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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