| abstract |
(57) [Summary]n[PROBLEMS] Good resistance to PVC plasticizer, oil and light. To provide a thermal recording material having excellent image storability. You.nA colorless or pale leuco dye is provided on a support. Reacts with the coloring material when heated to form a color. The feeling of providing a thermosensitive coloring layer containing a color developing substance In the thermal recording material, the color developing substance is represented by the general formula [1]. Compound and 4-benzyloxy-4'-hydroxydiph 30: 70-80: 20 weight ratio with phenylsulfone A heat-sensitive recording material characterized by being a compound. Where R 1 , R Two And R Three Represents hydrogen, halogen, an alkyl group having 1 to 4 carbon atoms. Alkyl group, alkenyl group having 1 to 4 carbon atoms, hydroxyl Or an alkoxyl group having 1 to 4 carbon atoms, and Z is S O Two Or C (CH Three ) Two It is.nEmbedded image |