A reversible multicolor thermal recording medium which is free from
fogging and has sharp contrast even after recording and erasing are
performed repeatedly, and a recording method using the same are
provided.A reversible multicolor recording medium is provided, which
includes recording layers each containing a plurality of reversible
thermal coloring compositions having different coloring tones, formed to
be separated from and stacked on a surface direction of a supporting
substrate; and the plurality of reversible thermal coloring compositions
containing light-to-heat transforming materials which absorb infrared
rays having different wavelength ranges to generate heat, respectively;
wherein an absorption peak wavelength of the light-to-heat transforming
material contained in the recording layers becomes the longest wavelength
at the layer formed nearest the supporting substrate, and becomes a
shorter wavelength as the layer is closer to the surface layer in the
stacked order.