To provide a brightly-colored nail seal excellent in fastness.
In the nail seal, a pattern image by toner formed by an electrophotographic system is formed on other surface of a sheet having one surface that is adhesive. In a full color image forming method in which an image is developed by using at least yellow toner, magenta toner and cyan toner as the toner, the nail seal satisfies following conditions (1) to (3). (1) When saturation in a toner image formed only with the yellow toner is maximum, lightness L*y of the toner image is within 80 to 90. (2) When saturation in a toner image formed only with the magenta toner is maximum, lightness L*m of the toner image is within 35 to 51. (3) When saturation in a toner image formed only with the cyan toner is maximum, lightness L*c of the toner image is within 53 to 70.
KUSAKA NATSUKO
SHIRAI AYA
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