Originally Posted by Prism99
Bias cuts of cotton fray less than straight-grain cuts. Maybe the "blooming" is different for cottons than for rayons?
The two lap blankets I made were out of medium weight plain woven cotton fabric (similar to kona cotton) and they bloomed quite well. The texture was a bit different, not so silky as the rayon but still very pleasing to the touch.
I discovered that faux chenille was a great way to use dyeing experiment failures. The only layer where the pattern of the fabric really counts is the foundation layer, so anything that has good colour but bad pattern (like failed tie-dye) can be used as one of the layers to slash. And even fabrics where the colours mixed into mud could be used because when it was just one of five slashed layers, the muddy colour just blended in.
No matter what fabric you use, it's definitely a good idea to do some experiments first.