| 摘要 |
<p>PCT No. PCT/GB97/02185 Sec. 371 Date Feb. 16, 1999 Sec. 102(e) Date Feb. 16, 1999 PCT Filed Aug. 14, 1997 PCT Pub. No. WO98/07578 PCT Pub. Date Feb. 26, 1998A transfer foil comprising a carrier sheet and a thermally transferable overlay, the overlay comprising a transparent film of polymeric material having dispersed therein surface-stabiiised titanium dioxide, wherein the titanium dioxide is stabilised by coating the surface with alumina, silica or zirconia or mixtures thereof. A thermal transfer dye sheet ribbon comprising a substrate supporting different coloured dyecoats provided as discrete uniform print-size panels arranged in a repeated sequence along the ribbon, and a thermally transferable overlay comprising a transparent film of polymeric material having dispersed therein surface-stabilised titanium dioxide, positioned between each repeated sequence of the dyecoat panels, wherein the titanium dioxide is stabilised by coating the surface with alumina, silica or zirconia or mixtures thereof.</p> |
