| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a color developing composition for a recording material of excellent heat resistance. <P>SOLUTION: This color developing composition uses, as the recording material, a composition of which the heat quantity of an endothermic portion in a range of 100 to 120°C measured by a DSC (differential scanning calorimeter) is 20% or less of the total heat quantity of the endothermic portion at 100°C or higher, in a composition containing a mixture of compounds expressed by formula (I), where n is an integer of 1-6, and containing the n=1 compound in a content of 5 mass% or more of total solid content in the composition. <P>COPYRIGHT: (C)2011,JPO&INPIT |
