/diy/ - Do It Yourself

Does anyone here know much about tie-dying? Got an idea after buying a tie-dye set.

I'm trying to make some shirts but I'm not having much luck, I've tried Rit dye, and now I'm trying dylon, but the shirts keep ending up faded as fuck

My method:
1. Soak plain white cotton shirt in water/sodium carbonate (soda ash) solution for 20 minutes
2. Bind shirts according to pattern with rubber bands
3. Apply dye to wet shirt (dyes are in 118ml bottles, 8mg powdered dye dissolved)
4. Leave for ~24 hours in plastic wrapping = moist
5. Cut binds (at this point the shirt looks good, colour is okay), wash shirt in water (i've also tried a salt solution) to remove excess dye
6. Put shirt(s) in washing machine with small amount of washing powder (i've tried low and high temps)
7. An hero when shirt turns out faded as fuck

Help a bro out /diy/, can anyone give me some tips? another method? a better dye brand? Call me a faggot and tell me what I'm doing wrong?

Btw the shirts I made with the original tie-dye set turned out great, it's just the shirts i've been trying to make with new dyes

Pic related, not one of mine