Thermal imaging methods and materials

Details Thermal imaging methods and materials Thermal imaging methods and materials

C - Chemistry, Metallurgy

09

B

C09B 53/00 (2006.01) B41M 5/28 (2006.01) B41M 5/323 (2006.01) C09B 55/00 (2006.01) C09B 57/00 (2006.01)

Patent

CA 2068031

7679-CAN THERMAL IMAGING METHODS AND MATERIALS Abstract of the Disclosure Leuco dyes are provided which comprise the coupling product of a N-acyl substituted aromatic amino color developer and a dye-forming coupler moiety substituted at the coupling carbon with a thermally removable leaving group. Thermal imaging systems employing these leuco dyes have the advantage of reduced bubble formation relative to thermal imaging systems employing prior art leuco dyes containing a group which thermally fragments into one or more gases.

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