I got the cotton/linen fabric all washed out, dried and ironed. I'm rather mind-boggled by the final result:
It's blue and white, for pity's sake! The blue is definitely paler than it was before, and all traces of yellow or green are gone. I decided that this is for clothing, I'm calling it good and cutting it out.
Since I had the thiox pot going, I threw in a couple of silk scarves I'd dyed before and didn't like. Here's what they looked like when I dyed them last fall--
Ugly!! I overdyed the yellow/orange one in red, and it was still ugly. So I threw them in the thiox pot, and left them in for about half an hour. The one on the right turned out very nice, I'm keeping this one.
The patterning is really subtle, but I like it. The blue/purple one is still rather ugly--
Honestly, I'm not sure if anything can salvage this one. Just for the heck of it, I think I'll do some soy wax batik, then overdye it in very dark blue. I'd do black, but I know you can't get black with MX dyes on silk. What the heck, I'm only out a couple of bucks if it ends up in the trash!