I have heard those called loop blankets.
For a touch blanket I wanted to do a throw for the floor that would have all different types of fabric that felt different. For example, satin, fleece, fake fur, flannel, minkey, etc. Might even try and get some soft mirrors and sew them down. Just not quite sure but the baby loves that crinkly fabric. He has a butterfly that has wings made out of it and loves it.
If anyone has idea please shoot them my way!