From personal experience.... go to the laudromat, DON'T use your own washing machine.
I had some GORGEOUS fabric... with glitter.
ALL of our clothes had sparkles in them for quite some time thereafter... do you know how cranky a man can get when his jockey's sparkle?!? LOL!!
Seriously, I am NOT kidding... even if you only wash the quilt or fabric ONCE in your washer, it's like the flakes hide in the depths of the washing machine and appear in every load for WEEKS.
Trust me. I honestly know about this.