What kind of printing media do you want to use? Do you want to make your images in silver-gelatin (aka Liquid Light), or in some other alternative process, like cyanotype, Van Dyke Brown, or platinum? Liquid Light goes on to all kinds of surfaces, even non-porous ones. Cyanotype, VDB and platinum need a more receptive surface to work well - I know many folks have done cyanotypes and VDBs on fabric as well as various art papers. Platinum might well work on fabrics too, but I am unfamiliar with anyone attempting it.