  Distillability sudden death and sudden birth in a two-qutrit system under
decoherence of finite temperature is studied in detail. By using of the
negativity and realignment criterion, it is shown that certain initial prepared
free entangled states may become bound entangled or separable states in a
finite time. Moreover, initial prepared bound entangled or separable states
also may become distillabile entangled states in a finite time.
