- it removes the gum from the worms and coccoons
- it removes all starches and chemicals used in the preparation of the silk
- it allows better application and absorbency of the dye
- it allows the gutta/resist to work better
When the scarves come out of the steamer, they are kind of cracky-crinkly (Yes, that is the technical term. At least it is now.), and still have bits of salt on them. They’re pretty, but don’t have that lovely flowing and shining texture that you expect from silk.
So, the next step is to wash the scarves. I put them into lingerie bags to keep them from tangling too badly in the wash. (I learned that one the hard way.) I don’t put more than 3 or 4 scarves in a bag, and try to put like colors together on the off chance that the dyes run into each other.
This stuff helps keep the excess dyes from transferring to the silk. You can also use Synthropol. I put in about 1/4 cup for the wash load. The washer is on hot, and is set to the delicate cycle.
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