I made a red, black & white D9P out of Kona. I pre-washed everything with just normal detergent (my normal procedure) and that was it for pre-treating. Zero bleeding! I totally trust Kona, I've been using it a few years now and have never had any bleeding at all.
This photo isn't best quality, but this is the quilt just before I gave it away - I wash my quilts 2X in the washer before I give them away, so this is how it looked after two washings as a completed quilt.
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