Patent ID: 7097955

Claim:
A method for forming a multi-color image, which comprises: using an image-receiving sheet having an image-receiving layer and at least five heat transfer sheets including thermal transfer sheets for a color of yellow, magenta, cyan or black, each of which comprises a support having provided thereon at least a light-to-heat conversion layer and an image-forming layer; superposing the image-forming layer of each of the thermal transfer sheet on the image-receiving layer of the image-receiving sheet, in which the image-forming layer is opposed to the image-receiving layer; and irradiating a laser light thereto to transfer the laser-irradiated area of the image-forming layer to the image-receiving layer of the image-receiving sheet and record an image, wherein the at least five heat transfer sheets include a thermal transfer sheet (X) forming a hue outside the scope of hues reproducible by the single use or combined use of a thermal transfer sheet for a color of yellow, magenta, cyan or black; and the image-forming layer of the thermal transfer sheet (X) has a hue of L*=48 to 58, a*=69 to 79, b*=36 to 46; L*=16 to 26, a*=19 to 29, b*=−63 to −73; L*=57 to 67, a*=−73 to −83, b*=26 to 36; or L*=65 to 75, a*=50 to 60, b*=81 to 91.