I would say yes....and I would wash the blacks separate from each other and use color catchers so if one transfers the color, you will know which one it is.....and because I washed the blacks, I would also wash the other fabrics too.....I have had blacks and reds transfer color...one batik, I washed three times and each time it just kept on giving up that color....I finally sold it at yard sale with a big tag on it that clearly stated "not colorfast" I was tired of dealing with it....six yards...from a quilt shop