HEAT-SENSITIVE RECORDING MEDIUM, HEAT-SENSITIVE RECORDING LABEL, AND BASE MATERIAL THEREOF

PROBLEM TO BE SOLVED: To provide: a heat-sensitive recording medium or heat-sensitive recording label having improved cutting suitability when cutting and processing suitability when die-cutting; and a base material of these.SOLUTION: Provided is a heat-sensitive recording medium, heat-sensitive recording label, or base material for these, comprising: an undercoat layer on a substrate, containing pigment; and a heat-sensitive recording layer on the undercoat layer, containing an electron-donating leuco dye and an electron-accepting developer. The undercoat layer contains a fatty acid metal salt or fatty acid amide as a lubricant, or a clear layer is provided between the substrate and the undercoat layer and the clear layer contains a fatty acid metal salt or fatty acid amide as a lubricant.SELECTED DRAWING: None 【課題】裁断する際のカッター適性や打ち抜き加工する際の加工適性が改善された感熱記録体若しくは感熱記録ラベル及びこれらの原反を提供する。【解決手段】支持体上に顔料を含有する下塗り層、及び該下塗り層上に電子供与性ロイコ染料及び電子受容性顕色剤を主成分とする感熱記録層を有し、該下塗り層が滑剤として脂肪酸金属塩又は脂肪酸アミドを含有する、又はこの支持体と下塗り層との間にクリア層を設け、該クリア層が滑剤として脂肪酸金属塩又は脂肪酸アミドを含有する感熱記録体若しくは感熱記録ラベル又はこれらの原反。【選択図】なし