Re discovered my very first quilt top i made probably 15 years ago. I had it packed away and found it the other day. It was a very simple pattern and I used red, green and a off-white glittery material. Around the edges of the top the off white has yellowed took it to the laundromat and washed it ( the reds didn't run like i thought they might - yea!) but it still has the yellow. any ideas how to get rid of the yellowed part or it is beyond help. i thought of using a color safe bleach additive but am a little afraid. Would appreciate any suggestions! Thanks!