| 摘要 |
Thermal dye transfer printing method for obtaining high density black images comprising the steps of (1) imagewise heating a first area of a dye-donor element or a first dye-donor element comprising a support having thereon a dye layer containing a dye or a mixture of dyes thereby transferring a first dye image to a dye-receiving element comprising a support having thereon a dye image-receiving layer and (2) subsequently imagewise heating a second area of said dye-donor element or a second dye donor element thereby transferring in register with the first dye image a second dye image to said dye-receiving element wherein the superposition of the first transferred dye image and the second transferred dye image yield a black dye image, characterized in that the concentration of those essential composing dyes having a higher retransfer degree than the other essential composing dyes is higher in the second area or in the second dye-donor element than in the first area or first dye-donor element, and dye-donor element for use according to said method.
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