Sun dyed fabric with lumi ink - watching the colour develop kept a 3 year old occupied for quite a while!
The fabric will be dyed at the yarn stage in order to ensure better quality and uniformity in color. We will use dyes so our color binds chemically with the fabric and we do not have issues with the fabric stiffening, crocking, fading, or properly binding (as we would with pigments). Although this might make our product slightly more expensive, it will be a better product for the end consumer.
tutorial: how to make all natural fabric dyes - (using raspberries tumeric & tea) I've heard that vinegar will help set the color ( hence the stains from ketchup and barbecue sauce) and that using aluminum pans to cook them in may help.