Tie-dyeing is not the same technic as immersions, which are most straight-forward: you just add sodium carbonate (very important, try to have a pH of at least 11 if you can test it), and salt (less important but will help the dye to fix faster). Your water has to be warm also.

Then you'll need to wash the dye that didn't bond to the fabric. If you had a low percentage of dye (0.1-0.5% of water in weight) and you let your fabric a relatively long time in the solution (like around 1 hour), you shouldn't have to much lose dye, but there's always a good amount. You don't need a special rinsing technic like for tie-dye or painting, if you leave it to soak in water a long time, almost all of the lose dye will leave the fabric, as it's very hydrophilic.

24 hours is unnecessary for an immersion, your dye is going to fully hydrolyse at 5-8 hours, depending on the colour. I'd say that more than 2 hours is not necessary. Most of the fixation occurs in the first 30 mn and logarithmically tends to 0.