I add Pellon 911FF to the back of all hand embroidery before I start embroidering. It irons on and makes the white fabric whiter. The traveling embroidery stitches to not show thru to the front. The only drawbacks is sometimes there is a bubble wrinkle after washing but the embroidery does that anyway so it is not noticeable. I like it so much, I purchase it by the bolt when it is on sale at J's and keep it on hand.