A heat-sensitive recording material wherein a color-forming layer comprising a coupling substance which is usually colorless or light-colored and a developer which gives rise to color in the coupling substance upon heating further contains, as a sensitizer, a tetrahydronaphthalene compound of the following general formula (I): ##STR1## wherein X represents an alkylene group, --O--CO--O--, --O--CO-- or --O--R'.sub.n Y--, n represents 1 or 2, Y represents --O-- or --S--, R' represents an alkylene group, and R represents a phenyl, alkylphenyl or tetrahydronaphthyl group.
一种热敏记录材料,其中包括一个
颜料形成层,该
颜料形成层包括一种偶联物质和一种开发剂,通常偶联物质为无色或浅色,在加热时开发剂会使偶联物质变色。此外,作为增感剂,它还包含以下一般式(I)的四氢
萘烷化合物:
其中X代表一个烷基,-O-CO-O-,-O-CO-或-O-R'.sub.n Y-,n代表1或2,Y代表-O-或-S-,R'代表一个烷基,R代表苯基,烷基苯基或四氢
萘基。