Abstract: Dye-donor element for use according to thermal dye sublimation transfer comprising a support having on one side thereof a dye layer, characterized in that said dye layer or a layer adjacent to said dye layer contains a toluene sulfonamide formaldehyde condensation product.

Abstract: Thermal dye transfer printing method comprising the step of imagewise heating a dye-donor element comprising a support having thereon a dye layer thereby transferring a dye image to a transparant dye-image receiving element comprising a support having thereon a dye image-receiving layer and optionally having one or more back layers on the opposite side of the support, characterized in that said receiving element is such that when a dye image has been transferred onto said receiving element the specular gloss of the obtained dye image measured from the readable side of the image in areas having a transmission density of at least 2.00 is at the most 90, and transparant dye-image receiving element for use according to said method.

Abstract: Dye-donor element for use according to thermal dye sublimation transfer, said dye-donor element comprising a support having on one side a dye layer and on the other side a heat-resistant layer provided with a topcoat layer, wherein said heat-resistant layer comprises an organic polymeric binder and the topcoat layer is obtained by coating a solution of at least one silicone compound and a substance, capable of forming during the coating procedure a polymer having an inorganic backbone which is an oxide of a group IVa or IVb element.

Abstract: Dye-image receiving element for use according to thermal dye sublimation transfer comprising a dye-image receiving layer, said dye-image receiving layer and/or a toplayer provided on top of said dye-image receiving layer (if such toplayer is present) containing a reaction product obtained by crosslinking and curing a non-polymeric compound containing two or more active hydrogen-containing radicals and a compound containing two or more isocyanate groups.

Abstract: Dye-donor element for use according to thermal dye sublimation transfer comprising a support having on one side a dye layer and on the other side a heat-resistant layer, characterized in that said heat-resistant layer comprises a polycarbonate derived from a bis-(hydroxyphenyl)-cycloalkane (diphenol) corresponding to formula (I) ##STR1## wherein: R.sup.1 and R.sup.2 (same or different) represent hydrogen, halogen, a C.sub.1 -C.sub.8 alkyl group, a C.sub.5 -C.sub.6 cycloalkyl group, a C.sub.6 -C.sub.10 aryl group or a C.sub.7 -C.sub.12 aralkyl group;X represents the necessary atoms to close a 5- to 8-membered cycloaliphatic ring which is substituted with one or more C.sub.1 -C.sub.6 alkyl groups or 5- or 6-membered cycloalkyl groups or carries fused-on 5- or 6-membered cycloalkyl groups.