Originally Posted by
bearisgray
Does it matter if the fabric has been washed or not for the signatures to stay on the fabric?
My gut reaction would 'yes' because the chemical finishes applied to the fabric surface intentionally inhibit things from adhering to and penetrating the fibers. Dyes, paints, inks, all work better on prepared for dyeing (PFD) fabric which is the same as prewashed fabric that is then dried without additives. No reason that wouldn't be true for micron pens, etc as well.