I have heard this from several different sources before but couldn't remember "why" the vinegar didn't work on todays dyes. Thank you!Originally Posted by Scissor Queen
If you ever take a class on threads, the one thing they say is to never use Coats & Clark thread. And if you use DMC floss or another type of cross-stitch type thread, you should rinse it to get all the excess dye out of the threads before embellishing your quilt with them.
The problem with poly thread being used with cotton is because the poly is so much stronger than cotton. This mainly applies to applique. There is a very good chance that over the years the poly thread will rub against the cotton fabric and actually end up cutting it, which is not what you want after spending forever and a day applying all that applique to a quilt. I've seen a quilt where this happened and it was sad. Now I have to say the quilt was about 30 years old, but I make my quilts to last and I honestly don't want to have to redo the quilt after I've done it once. JMO.