N-alkyl-or n-aryl-aminopyrazolone merocyanine dye-donor...

Details N-alkyl-or n-aryl-aminopyrazolone merocyanine dye-donor... N-alkyl-or n-aryl-aminopyrazolone merocyanine dye-donor...

B - Operations, Transporting

41

M

42/5

B41M 5/26 (2006.01) B41M 5/52 (2006.01)

Patent

CA 1283535

N-ALKYL- OR N-ARYL-AMINOPYRAZOLONE MEROCYANINE DYE-DONOR ELEMENT USED IN THERMAL DYE TRANSFER Abstract A dye-donor element for thermal dye transfer comprises a support having thereon a 3-(N-alkyl- or N-aryl-amino)-2-pyrazolin-5-one merocyanine dye dispersed in a polymeric binder, the merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, the merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.

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