Silk Fabric specs?

[Knoll]

Would like to try silk as bow backing. Purchased ydge is avail in myriad of thicknesses. When buying it, what specs should I be looking for?
Here is one resource's description that would seem to be appropriate for bow backing, but am not sure.
-Weight: Tissue/Extra Light
-Transparency: Sheer
-Stretch: No Stretch
-End Uses: Lined Dresses, Lined Blouses, Overlays, & more

[Pat B]

Go to your local thrift store and but men's silk neck ties. They will cost about $2 and already have decoration for your bow. Silk blouses work also. This silk should be strong enough for bow backings.

[George Tsoukalas]

My daughters would give me old silk dresses. For any seams, I covered with wrappings. Jawge

[Sagebrush]

I am going to try some raw silk that I just purchased. It seems to be a whole lot tougher for not a lot of weight. I will let you know how it turns out.

[Woodely]

Have tried silk ties a few times and found that its on the weak side.   Having said that wont use it again, I would be more inclined to use Linen or other material.