| 摘要 |
A color image forming method comprises bringing a developer into contact with a recording material comprising a support and a recording layer containing at least two kinds of leuco dyes being capable of forming colors different in hue from each other on contact with the developer. The leuco dyes are a yellow color forming leuco dye, a magenta color forming leuco dye and/or a cyan color forming leuco dye. The equilibrium constants of the reactions between these dyes contained in the recording layer and the developer are not lower than 0.05.
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