This worked for me, I got a paper pattern on e-bay, very old from the 80's it smelled so musty. I put in a dryer sheet in between the papers and kept in closed plastic bag for a week,
I am working with the pattern now and all I can smell is the dryer sheet. If that doesn't help, try just soaking the fabric no agitation as this would make it fray and try using fabric softener......Good Luck Carol Miez