I am a rag quilter designer and use only 100% cotton and have never had problems making wonderful one of a kind rag quilt.
Last two years I have had all sorts of folks around here wanting to make rag quilts after they saw how well it looked using 100% cotton. Most had not even ever heard of a rag quilt or if they did they thought it could only be done with flannel.
Batiks is one of my favorite fabrics. Actually the most favorite so I use it alot.