I could be wrong, but hollow fibers are trivially simple to make... they can be pulled out of a beaker. I believe solid fibers have to be extruded.
Nothing is inexpensive these days.
On second thought, solid fiber would not be extruded, but more probably spun the way they make synthetic thread. It's also pulled out of a beaker.
Kinda fun to watch. I have a friend who used to work for a textile mill. He bought a couple of huge machines real cheap, and for years made net bags for hams. Recently, he sold the business lock, stock and barrel to another fellow. Anyway, to keep those huge machines going, he had a little reciprocating rig on a bench, that pulled thread out of a beaker all day long, completely unattended.
that would be interesting to watch
I have been on a field trip (10 years ago?) to the local Monsanto Plant (now Solutia, I think), and watched them making nylon thread, mainly used in the carpet industry. Very intersting. I have several friends who are retired from there and others work there still.
“Indian builds small fire and stays warm, white man builds big fire and stays warm collecting firewood”—unknown
“The cure for anything is salt water - sweat, tears, or the sea”—Karen Blixen
I'm definately curious to see the Wiggy's bottom insulation. Make sure you post pics.
My blanket from Wiggys shipped today. Will measure and take pics when it arrives.