There's insecticide on new fabrics?!? If this is true, do you really want to be handling it while you make a quilt? I wash everything I bring in the house. Most of the time I serge but sometimes I'm in too big of a hurry and then I pull off threads before putting in dryer and then there's not too much when it comes out of the dryer. If I don't pull off threads and fluff a little coming out of the washing machine it's a terrible mess coming out of dryer.