I need to make a correction. When I wrote it can never be washed, I meant to say the photo can never be washed out.
After the photos have been treated with the weakened glue it can be washed as many times as needed and the photos will never fade. The glue actually makes the photos more vibrate. The fabric photos after the glue treatment will feel about like taffata fabric and can easily be quilted. When I first started making photo quilts I was disappointed when the photos bgan to fade after each washing no matter which brand of treated fabric I bought. I had made a baby quilt with the babys' photo in the center but as it was washed the photo began to fade. A baby quilt has to be washed very often so I began experimenting. I am making my gdil a wedding memory quilt and will post a picture of it as soon as I finish.