| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance color development density of a color-erasable image forming material containing a coloring compound and a developer. <P>SOLUTION: This color-erasable image forming material, which contains the developer and the coloring agent presenting a color development state by an interaction and which can erase a color by heating or contact with a solvent, is characterized in that the developer includes at least two kinds of compounds where a difference in molecular weight is 15 or more. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
