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I didn't wash my finished pieces until I worked a few afternoons with a fabric conservator.
She reminded me that the pieces we see in museums now were all washed in their lives. This removed the natural oils from our fingers that seep into the fabric as we are working. This won't be seen on a piece for maybe the first 50 years, but if parts of the fabric absorbed more oil than another it will begin to age differently, and this might stain.
She also reminded me that modern fabrics are coated in a preservative, that helps prevent thread breakage, and discolouration and mold during storage. Museum age stitching was never stitched on this kind of treatment. We don't know how fabrics will age with this stuff left on them. Only time will tell.
I always wash cotton based fabrics now before I start stitching. Then if there's some shrinkage it won't distort my piece. I use DMC, Anchor, or Madeira mainly. But to be honest I've used all kinds of thread, Chinese silk, rayon, hand dyed stuff, and never had too much of a problem. I have started to use those color catcher sheets you get in the supermarket. They work great in the washing machine, and I figured the process is the same in the hand bowl.
Once I've washed a finished piece, I roll it up in a clean towel. I don't wring it. Then I either iron the piece dry though a tea towel or two, or I stretch the piece on a pinning board and let it dry.
If I live another 50 years, I'll let you know if there's a difference between my first pieces that I didn't wash, and my later pieces that I did! |
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