I have been collecting onion skins for ages now, for dyeing, and I decided the other day that I was sick of the sight of them hanging round. So I mordanted some pencil roving and some fibre in alum (the pencil roving had previously been dyed with indigo but was fairly pale and patchy).
This is what it looked like all pristine and white:
This is it indigo dyed:
I boiled up the onion skins for about 45 minutes and extracted the dye and then simmered the roving in it. Haven’t got any photos of that stage but here is some silk which I did in the exhaust dye.
Now it’s hanging on the line:
Here’s the fibre I dyed, drying on some newspaper:
And here is a photo of the silk – it is actually a deeper colour than that.