i did some logwood dyeing today, and have a bit of fiber soaking in a jar of lichen dye. when i look at the dyebath after the first batch of fiber is dyed there is still so much dyestuff left in it, but the next batch of premordanted fibers come out in such pale shades, even though i soak them overnight in the cooling water. i completely don't get it. it's like this for all of the dyes i've been using; cochineal, kamala, osage, logwood, madder, teal. i hate having to dump the remaining stuff in my compost if it's still usable, so i wish i could figure it out. i think perhaps a posted question to the natural dyes group is needed.