HEAT-SENSITIVE RECORDING MATERIAL

• Main Author: TAKEMURA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 26.10.2023
• Subjects: COLOUR PRINTING; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

To provide a heat-sensitive recording material that is excellent in the long-term preservation of printed matter.SOLUTION: The present disclosure provides a heat-sensitive recording material which comprises, on a supporting body in the following order, at least a primer coating layer that contains hollow particles, an adhesive, and an inorganic pigment I, and a heat-sensitive recording layer that contains a leuco dye, a color developer, and an inorganic pigment II. The color developer is a compound represented by the general formula (1) (where R1-R5 each represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a monoalkylamino group, a dialkylamino group or an arylamino group).SELECTED DRAWING: None 【課題】印字の長期保存性に優れる感熱記録体の提供。【解決手段】支持体上に少なくとも、中空粒子、接着剤及び無機顔料Ｉを含有する下塗り層、並びにロイコ染料、顕色剤及び無機顔料ＩＩを含有する感熱記録層をこの順に有する感熱記録体において、前記顕色剤として下記一般式（１）：TIFF2023157341000007.tif46170（式中、Ｒ１～Ｒ５は、水素原子、ハロゲン原子、ニトロ基、アミノ基、アルキル基、アルコキシ基、アリールオキシ基、アルキルカルボニルオキシ基、アリールカルボニルオキシ基、アルキルカルボニルアミノ基、アリールカルボニルアミノ基、アルキルスルホニルアミノ基、アリールスルホニルアミノ基、モノアルキルアミノ基、ジアルキルアミノ基又はアリールアミノ基を表す。）を含有する感熱記録体。【選択図】なし