THERMAL PRINT PAPER AND PROCESS

摘要

A coating composition is applied to a print stock substrate for preparing a thermally-active layer, the coating composition comprising: a developer comprising at least one or a combination of 6'-dipentylamino-3'-methyl-2'(phenylamino)-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (CAS N DEG . 129473-78-5) AND 6'-dibutylamino-3'-methyl-2'(phenylamino)-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (CAS N DEG .89331-94-2); a sensitizer comprising at least one or a combination of 1,1'-sulfonylbisbenzene (CAS N DEG . 127-63-9) and dimethylterephthalate (CAS N DEG . 120-61-6); and a coreactant (or developer) comprising at least one or a combination of bis(4-hydroxyphenyl)-4-methylpentane (CAS N DEG . 6807-17-6) and 4-hydroxy-4'-isopropoxydiphenylsulfone (CAS N DEG . 95235-30-6). Preferably, the print stock substrate will be coated with clay or the like to provide a smooth coating surface for the thermally-active layer. Also preferably, the thermally-active layer will be overcoated with a protective layer.