Slipping layer binder for dye-donor element used in thermal dye transfer

摘要

A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising an aminoalkyl(dialkylsilyl)-terminated poly(dialkyl siloxane) in a polymeric binder, the improvement wherein said polymeric binder comprises a poly(vinyl acetal) having more than 60 mole % acetal units which is formed from poly(vinylalcohol) and acetaldehyde or formaldehyde.