| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sensitive recording material, which has a high color developing sensitivity and, at the same time, is excellent in the storage stability of a color-developed image. SOLUTION: In order to obtain the heat sensitive recording material having a heat sensitive color developing layer including a developer and a color developing dye on a support, a dispersant liquid is coated on the support and then dried after the dispersant liquid is prepared by dispersing the developer mainly made of a 2,4'-dihydroxydiphenylsulfone, the Hazen scale of the molten color of which is prepared to lie within the range of 300 to 2,000, and the color developing dye in a dispersion medium. |
