I dabble in dying. I do silks for bellydance, and use the leftover Procion MX on bamboo bags. I usually get my dyes from ProChem or Dharma.
Usually the bags turn out a nice stonewashed look, with some color bleed into white areas as the bags dry.
Back in January, I found some Procion MX in the clearance bin at the craft store. I like to test new colors on the bags, and this time I'm glad I did.
As the bags dried, the color separated and bled into the white parts. Sage turned into a blue and yellow, Ok, that makes sense. But the Burgundy turned into a yellow and pea soup green? That seems weird to me. These colors came from the craft store.
The bags dyed Butterscotch and Plum on the same day, same process, turned out just as expected, with a nice reddish purple and rich yellow and gold and some green where they meet. These colors came from ProChem.
Should I worry about the craft store colors, the ones that separated on bamboo, separating if I use them on cotton or silk? Should I worry about the other colors from the craft store?