For our group that does quilts for people with cancer we had the same problem. We have been using Sulky KK 2000. Check out the website
Sulky.com to read all about it. It is a temporary spray which lasts a day or so. It doesn't have harmful propellants. We use it as part of the sandwiching process...to hold the layers together while we baste it. Though you will pay more for it than the regular spray that hold till the quilt it washed.