To provide a thermal transfer recording medium which does not, with a simple configuration, generate wrinkles on a material to be printed, even when it is a material to be printed easy to generate wrinkles, has good printing performance on both plastic and paper, enables transferred color to appear as intended color even when a colored layer having a low hiding property is transferred on a translucent or transparent material to be printed, does not generate blocking, allows printing to be done clearly, and does not cause letters to collapse.SOLUTION: Provided is a thermal transfer recording medium for printing on translucent sheet-like paper and/or transparent or translucent sheet-like plastic, comprising wax as a main component, where a colored layer containing an adhesive resin is coated directly on a substrate, a white hiding layer mainly composed of wax and titanium oxide particles is laminated on the outermost layer of the colored layer, a thickness of the colored layer is 1.6 μm to 2.4 μm, peel force of the colored layer from the substrate is 0.049 N/12 mm width to 0.147 N/12 mm width, and a content of titanium oxide in the solid content of the white hiding layer is 30 wt.% to 70 wt.%.SELECTED DRAWING: None【課題】シワが発生しやすい被印字物でも、簡単な構成で、被印字物にシワが発生せず、プラスチックと紙の両方への印字性能が良好で、半透明または透明な被印字物に、隠蔽性の低い着色層を転写しても、転写した色が意図した色にみえ、ブロッキングが発生せず、印字の切れがよく、印字がつぶれない熱転写記録媒体の提供。【解決手段】半透明のシート状の紙及び／又は透明又は半透明のシート状プラスチックへ印字する熱転写記録媒体であって、ワックスを主成分とし、接着性樹脂を含有する着色層を直接基材に積層し、着色層上の最外層にはワックスと酸化チタン粒子を主成分とする白色隠蔽層が積層され、着色層厚が１．６μｍ～２．４μｍであり、基材からの着色層の剥離力が０．０４９Ｎ／１２ｍｍ幅～０．１４７Ｎ／１２ｍｍ幅で、白色隠蔽層固形分中の酸化チタン粒子の含有量が３０重量％～７０重量％である。【選択図】なし
