You have to explain more. What kind of textile? What kind of paint? What kind of design? I once painted a sheet top and pillowcases for a friend, I used latex paint. It never wore off. But I have no idea what you want to achieve.
Hello Wil, hope these help you
Use a Textile paint and foam brushes or use Chalk paint and finish with a clear or antique wax to seal it. Hope that helps........
Not sure what kind of textile you're trying to paint, but here's a fun video about painting an entire velvet sofa. It's from the creator of Debi's DIY Design Diary paint, maybe it'll at least get you on the right track - https://www.youtube.com/watch?v=kwEz633cwQQ