Generally speaking an art quilt, especially one that has been embellished with hot fix pearls and crystals, should not be washed. Thread painting and applique work like the kind done on both can be delicate, too. That said, the pair I just thrifted needed a bath. I decided to roll the dice once more and see if I could clean them (anything of value should only be cleaned by a professional textile cleaning service with experience handling such things.)
They were both a bit too big for my hand washing basin, so I soaked them in cold water and some mild detergent in the bathroom sink. I'm glad I didn't wash them together, as the green and violet runner shed a bit of dye in the water.
The panel quilt's dust and storage residue came out in the water, turning it a light beige.
I didn't soak either piece long; just about fifteen minutes. I then rinsed them out in cold water and hung them to dry. The green runner came out brighter with no damage or loss of embellishments.
The Asian panel quilt did the same. Both pieces will need pressing, but otherwise they're ready to be used.
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