super-greasy wool

[nora]

I have a (mostly) Wensleydale ram fleece that I've washed and dyed,  
and is too greasy to use.   It's recently shorn, and had a lot of  
black, sort of oily  muck on it.  I have used Synthrapol, dish  
detergent, boiling water, and ammonia in the rinse water (which did  
some weird things to the Procion dyes).  Has anyone seen this, or  
have suggestions for removing what seems to be permanent oil/grease?   
Thanks -
Nora
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