Utoto ndi chinthu chamtundu chomwe chimakhala chogwirizana ndi gawo lapansi lomwe likugwiritsidwa ntchito.Utoto nthawi zambiri umayikidwa mu njira yamadzi, ndipo umafunika mordant kuti utoto ukhale wofulumira pa ulusi.

Mitundu ndi mitundu yonse iwiri ya utoto imaoneka ngati yamitundumitundu chifukwa imatenga kuwala kwina kuposa ina.Mosiyana ndi utoto, kawirikawiri pigment sichisungunuka, ndipo ilibe mgwirizano ndi gawo lapansi.Utoto wina ukhoza kutenthedwa ndi mchere wouma kuti upangitse mtundu wa pigment, ndipo potengera mchere womwe umagwiritsidwa ntchito ukhoza kukhala nyanja ya aluminiyamu, nyanja ya kashiamu kapena ma pigment a nyanja ya barium.

Ulusi wa fulakesi wopangidwa ndi utoto wapezeka ku Republic of Georgia, womwe unalembedwa kale m'phanga la 36,000 BP.Umboni wofukula m’mabwinja umasonyeza zimenezo Kupaka utoto kwakhala kukuchitika kwazaka zopitilira 5000, makamaka ku India ndi Foinike.Utotowo udatengedwa kuchokera ku nyama, masamba kapena mchere, popanda kukonza kapena kuwongolera pang'ono.So gwero lalikulu kwambiri la utoto lachokera ku zomeras, makamaka mizu, zipatso, khungwa, masamba ndi nkhuni.