Substrate marking using encapsulated materials
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United States of America Patent
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-
Mar 2, 2010
Grant Date -
Oct 12, 2006
app pub date -
Apr 11, 2005
filing date -
Apr 11, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Substrates, coatings and methods for marking substrates using the coatings. The substrate contains a coating of encapsulated marking materials. Capsules of the encapsulated marking materials are designed to preferentially absorb a predetermined wavelength of light or range of wavelengths of light. The capsules contain color chemistry capable of activation by the predetermined wavelength of light or range of wavelengths of light for the generation of a color response. By utilizing capsules of differing color chemistries, such substrates are capable of multi-color image generation.
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