The Wilkinet is cotton so could be dyed
a]navy
b]purple with darker stripes
c]black
d]redwith dark stripes
Lollipop just use twice the salt quantity the dye says i use both the small dyes and the machine dyes in the machine, weigh the item and buy the correct or slightly more dye than youneed for weight, then put into machine dye, salt and item, let machine fill on a low water level and swish around for 5 minutes then switch the machine off and leave for 15 minutes, another few minutes swishing and another 15 minute pause then turn on and let it run.
After it has finished let it dry a bit and then wash again with powder and more salt and taa dah
Have dyed clothing and bed sheets this way, lovely colours.