Interlayer for slipping layer in dye-donor element used in thermal dye transfer

A process of forming a dye transfer image comprising:

• (a) imagewise-heating a dye-donor element comprising a support having on one side thereof a dye layer and on the other side thereof, in order, a subbing layer comprising a polymer having an inorganic backbone which is an oxide of a Group IVa or IVb element, and a slipping layer, and
• (b) transferring a dye image to a dye receiving element to form said dye transfer image,
• wherein an interlayer is located between said subbing layer and said slipping layer, said interlayer comprising a polymer having free hydroxyl groups.

A thermal dye transfer assemblage comprising

• (a) a dye-donor element comprising a support having on one side thereof a dye layer and on the other side thereof, in order, a subbing layer comprising a polymer having an inorganic backbone which is an oxide of a Group IVa or IVb element and a slipping layer, and
• (b) a dye receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer,
• wherein an interlayer is located between said subbing layer and said slipping layer, said interlayer comprising a polymer having free hydroxyl groups.