Thermal dye sublimation transfer process

摘要

The present invention describes a method for reproducing an image according to thermal dye sublimation transfer printing by printing two or more color separations of said image on top of each other, said method comprising in the order given the steps of: (i) forming a first assemblage by bringing a dye donor layer into face-to-face relationship with a receiving layer comprised on a support of a receiving element, said dye donor layer having a color and comprising a dye; (ii) image-wise heating said first assemblage thereby transferring said dye to said receiving layer in accordance with an amount of heat supplied and rendering a first color separation of said image; (iii) separating said dye donor layer from said receiving layer; (iv) forming at least one other assemblage by bringing a further dye donor layer into face-to-face relationship with said receiving layer of said receiving element, said further dye donor layer having a primary color different from a color of a dye donor layer used in any other assemblage and comprising a dye; (v) image-wise heating said other assemblage thereby transferring said dye to said receiving layer in accordance with an amount of heat supplied and rendering a further color separation of said image; said method being characterised in that a component A and B are brought in reactive association during image-wise heating of said other assemblage, said component A and B thereby forming a color of similar hue as a previously rendered color separation of said image.