dheeha kala firdhi waa hal nooc oo ka mid ah walxaha organic kaas oo ka xor ah kooxda ionizing.Waa ku milmay biyaha waxaana loo isticmaalaa in lagu rinjiyeeyo agabka dunta synthetic.Midabka kala firdhi waxay gaaraan natiijooyinkooda ugu wanaagsan marka habka dhimashadu uu ku dhaco heerkul sare.Gaar ahaan, xalalka ku dhow 120°C ilaa 130°C waxay awood u siinaysaa in ay kala firdhiso dheeha si ay u qabtaan heerarkooda ugu fiican.
Hermeta waxay bixisaa midabyo kala firdhisan oo leh farsamooyin kala duwan oo lagu midabeeyo synthetics sida polyester, naylon, acetate cellulose, vilene, velvets synthetic iyo PVC.Saameyntoodu way ka yar tahay awoodda polyester-ka, sababtoo ah qaab-dhismeedka molecular, oo u oggolaanaya kaliya pastel ilaa hooska dhexdhexaadka ah, si kastaba ha ahaatee midab buuxa ayaa la gaari karaa marka la daabaco kulaylka oo leh midabyo kala firdhisan.Midabada kala firdhiso ayaa sidoo kale loo isticmaalaa daabacaadda sublimation ee fiilooyinka synthetic waana midabada loo isticmaalo soo saarista qalin-wareejinta "iron-on" iyo khadadka.Waxa kale oo loo isticmaali karaa resins iyo balaastikada dusha iyo midabaynta guud.