Heat-stabilized IR-sensitive thermally developable imaging materials
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United States of America Patent
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Jun 24, 2003
Grant Date -
May 15, 2003
app pub date -
Jun 29, 2001
filing date -
Jun 29, 2001
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Abstract
A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
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