Prevention of spotting in thermal imaging compositions

Details Prevention of spotting in thermal imaging compositions Prevention of spotting in thermal imaging compositions

B - Operations, Transporting

41

M

42/3

B41M 5/26 (2006.01) B41M 5/30 (2006.01)

Patent

CA 1236299

Abstract of the Disclosure Thermally imageable composition comprising (a) at least one leuco dye, (b) a nitrate salt, (c) at least one base having a conjugate acid with pKa equal to or greater than zero. The base serves to prevent spotting or backgrounding of transparency films bearing said thermally imageable composition during the manufacturing process used in preparing the films.

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