Reactive dyestuffstuffs: good penetration/leveling, good fastness, no fading after normal dyeing; can be steamed, cold dyed, exhausted dyed. Disadvantages: processes and high operational requirements.
      Direct dyestuffstufs: poor permeability, easy to fade, not environmentally friendly, the color will oxidize and fade after a long time! The advantage is that the operation is simple, the quality requirements are not high or just for experiment.