I haven't done those, but you can get my nylon shader to do similar to satin.

BBNylon2 material is in this thread:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2803439&page=5#message_3662863

If you load that, and change the following parameter nodes:

PM:Density = 1

PM:Opacity = 1

PM:Weave Bump = 0

You will get what you see in the attached image.

quinlor posted some interesting stuff (using matmatic - heh) here:

http://www.runtimedna.com/forum/showthread.php?36906-Procedural-Silk

You would need to run matmatic to generate the shaders from the script provided in that thread.

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