The AURIfil Twisting Process
The twisting part of the process happens off-site, away from the main AURIfil factory. It turned out to be an outing for not just me, but also for Roberta, Dario and Elly, none of whom had seen this part of the process before.
As soon as we arrived, Alex went off to find Dario, one of the owners of the company that does the twisting.
Lots of machinery in this place - and it was pretty loud too!
Thread arrives from the spinner in single strands. The final weight of the thread depends on the thickness of the strand. The 4 weights of thread that AURIfil makes are all 2 ply - i.e. they all consist of 2 strands. But the strands that make up the 50 weight thread are a lot finer than the strands that make up the 12 weight thread!
Before twisting of two strands can occur, the thread first needs to be "doubled" - i.e. two strands are put together. Hence, two cones of strands are on the right hand side in the photo below, and they are "doubled" onto one cone on the left hand side.
Two strands are coming down in parallel.
The yellow ended cones of doubled thread are then sent to the twisting machine.
The twisting machine...
The twisting machine takes the double thread (i.e. two strands) and literally twists it to form the thread that you use.
Closeup... the rate that the drum spins determines the amount of twist in the thread.
After the thread has been twisted, it is steamed to fix the twist. If it wasn't steamed, it would untwist.
The cones that the twisted thread is wound on have holes in to allow the steam to penetrate all the way through.
After the thread has been twisted, it is singed to remove the tiny hairs that are on the thread.
The thread passes directly through a flame...
The speed of the machine determines how long the thread is exposed to the flame. The finer the thread, the faster it goes through the flame.
After it has been twisted and singed, the thread is wound into hanks which are then sent to the dyer.
The thread is hooked onto the front roller...
and then the machine starts up...
The thread is then separated and tied into bundles...
Which are removed from the machine...
Packed into bags, labelled and sent to the dyer.
When the thread has been dyed, it comes back to the twister where it is wound back onto 1kg cones that are sent back to the AURIfil factory to be wound onto spools.
Unlike the AURIfil factory, which is in an industrial area, the twister is out in the countryside!
I hope you've enjoyed this journal of my visit to Europe. I've certainly enjoyed telling you about it!
I wish you a very happy Thanksgiving!