THERMOSENSITIVE RECORDING BODY

• Main Authors: TOSAKA MASAYA, KOSHI TATSURO, HIRAI KENJI, MIDORIKAWA YOSHIMI
• Format: Patent
• Language: English; Japanese
• Published: 07.09.2023
• Subjects: COLOUR PRINTING; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

To provide a thermosensitive recording body having excellent solvent immersion resistance.SOLUTION: There is provided a thermosensitive recording body having a thermosensitive recording layer containing a colorless or light-colored electron-donating leuco dye and an electron-accepting color developer on a support, wherein the thermosensitive recording layer contains an iron stearate salt and a polyhydric hydroxyaromatic compound as a metal chelate-type coloring component and at least one urea compound represented by the following general formula: (wherein, Y represents -O- or -NH-, R1 represents a hydrogen atom or -SO2-R3, R3 represents a substituted or unsubstituted alkyl group, an aralkyl group or an aryl group, R2 represents a hydrogen tom or an alkyl group, m represents an integer of 0 to 2 and n represents 0 to 1.) as an electron-accepting color developer.SELECTED DRAWING: None 【課題】耐溶剤浸漬性に優れた感熱記録体を提供する。【解決手段】本発明は、支持体上に、無色ないし淡色の電子供与性ロイコ染料及び電子受容性顕色剤を含有する感熱記録層を有する感熱記録体において、該感熱記録層が、金属キレート型発色成分として、ステアリン酸鉄塩と多価ヒドロキシ芳香族化合物とを含有し、電子受容性顕色剤として、下記一般式TIFF2023124987000037.tif37164（式中、Ｙは－Ｏ－又は－ＮＨ－を表し、Ｒ１は、水素原子または－ＳＯ２－Ｒ３を表し、Ｒ３は、置換若しくは無置換のアルキル基、アラルキル基又はアリール基を表し、Ｒ２は、水素原子又はアルキル基を表し、ｍは０～２の整数、ｎは０又は１を表す。）で表されるウレア化合物を少なくとも１種を含有する、感熱記録体である。【選択図】なし