The invention relates to full-color erasable thermosensitive
photographic paper and a preparation method thereof. The full-color erasable thermosensitive
photographic paper comprises a protective layer, a thermosensitive
coating and a base material which are sequentially arranged from top to bottom, the thermosensitive
coating comprises a yellow thermosensitive
coating, a first middle layer, a
magenta thermosensitive coating, a second middle layer and a cyan thermosensitive coating which are sequentially arranged from top to bottom. According to the full-color erasable thermosensitive
photographic paper prepared by the invention, yellow,
magenta and cyan with relatively
high color density can be realized, and the situation that the color density of yellow,
magenta and cyan in the current thermosensitive photographic paper is not enough is avoided; compared with the prior art, the full-erasable thermo-sensitive paper has the advantages that independent yellow, fuchsin and cyan can be printed, color overlapping can be carried out, and only tiny deviation of
color coordinates occurs after 100 times of repeated erasing, so that the full-erasable thermo-sensitive paper can be repeatedly used, and the problems of serious environmental
pollution and resource waste caused by the fact that ink-free photographic paper can only be used once in the prior art are solved.