Heat-resistant layer for dye-donor element

Dye-donor element for use according to thermal dye transfer methods comprising a support having on one side a dye layer and on the other side a heat-resistant layer comprising a binder and inorganic particles having a volume average particle size of at least 1 mu m, said heat-resistant layer optionally carrying a topcoat comprising a lubricant, wherein said inorganic particles substantially consist of a mixture of a first type of inorganic particles, which are silicate particles having a Mohs hardness below 2.7, and of a second type of inorganic particles, which are silicate or carbonate particles having a Mohs hardness of at least 2.7 in a ratio by weight of said first type to said second type of inorganic particles comprised between 20:1 and 1:2.