We're making tie-dyed shirts for Disney, and started out great. I bought Golden Yellow and Royal Blue RIT dye, rubber bands & white tank tops. I did the blue end first then the yellow end, letting the colors mix in the middle a little bit for a small section of green. The colors turned out gorgeous... very bright and the pattern was so cool once we removed the rubber bands and rinsed with the hose.
BUT...
Once I rinsed them and then washed them with laundry deterget (as it states on the package) the colors are very muted, almost pastel, and hardly any contrast. I'm so bummed out. I even added "almost" a cup of salt to each batch to maintain color (also as stated on box).
The only thing I can figure is I didn't soak in dye long enough, but the box said to soak until you reach desired color up to 30 minutes. Well, the shirts "took" the color almost immediately, the longest I kept them in was 10-15 minutes. Is that the problem?
Need feeback. Thanks~~

BUT...
Once I rinsed them and then washed them with laundry deterget (as it states on the package) the colors are very muted, almost pastel, and hardly any contrast. I'm so bummed out. I even added "almost" a cup of salt to each batch to maintain color (also as stated on box).

The only thing I can figure is I didn't soak in dye long enough, but the box said to soak until you reach desired color up to 30 minutes. Well, the shirts "took" the color almost immediately, the longest I kept them in was 10-15 minutes. Is that the problem?
Need feeback. Thanks~~