Abstract: The present invention provides a heat sensitive recording material comprising a heat sensitive recording layer formed on a substrate and containing an electron-donating compound and an electron-accepting compound, and a protective layer formed on the recording layer when required, the recording material being characterized in that at least one benzotriazole compound represented by the formula (1) is incorporated into at least one of the heat sensitive recording layer and the protective layer ##STR1## wherein R.sup.1 is C.sub.1.about.4 alkyl, Ar is 1,3-phenylene or 1,4-phenylene.

Abstract: An image receiving sheet for thermal transfer printing according to the present invention comprises a dye receiving layer, a foam film, an adhesive layer, a release layer, a support layer and a lubricant layer which are successively laminated. The image receiving sheet for thermal transfer printing has a seal portion consisting of the dye receiving layer, the foam film and the adhesion layer, also having a support portion consisting of the release layer, the support layer and the lubricant layer. The image receiving sheet for thermal transfer printing according to the present invention is formed such that:(1) smoothness of the dye receiving layer is equal to or larger than 2000 seconds;(2) the foam film contains a white inorganic pigment of 5 to 30 weight % and a micro void formed by mixing resins that are not compatible with each other, having a cushion ratio of 5 to 30% and a density of 0.7 to 1.1 g/cm.sup.