Inkless reimageable printing paper and method
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United States of America Patent
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Jan 12, 2010
Grant Date -
N/A
app pub date -
Sep 8, 2008
filing date -
Sep 8, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An image forming medium includes a substrate, and an imaging layer coated on or impregnated into the substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material and an infrared absorbent dissolved or dispersed in a solvent or polymeric binder; wherein the infrared absorber absorbs infrared light of a wavelength in a range from about 730 nm to about 1500 nm; and wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of infrared radiation and light of a second wavelength and exhibits a reversible transition between a colorless and a colored state.
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