1. A method of xerographically preparing a color transparency copy comprising the sequence of: a. forming a single color xerographic powder image of a multicolored original to be reproduced; b. transferring the powder image to a transparency comprising a thermoplastic film sheet, said sheet having at least one surface having been coated with a nonvolatile long chain aliphatic ester having a melting point above 40.degree. C wherein said long chain aliphatic ester is selected from the group consisting of glycol monostearate sorbitan tristearate, sorbitan monopalmitate, sorbitan monostearate, ethylene glycol monostearate amd mixtures thereof; and c. then, repeating said sequence in steps (a) and (b), where each sequence corresponds with the formation of a different color to effect multicolor reproduction, said transfer of each developed electrostatic image taking place in registration on the transparency; d. fixing the powder image on the transparency.