What kind of knot is used for brush making?
So, there's a self-tightening knot that holds the bristles of calligraphy brushes together. I'm wondering what it is or what the best version of it is.
In these 2 videos, around the 2:00 mark, you'll see what I'm talking about. One end of the rope is attached to something (foot/table) and the other is pulled.
What kind of knot is in-between? Is it just a regular overhand knot or double overhand knot? I think I tried both, but they immediately loosened (maybe because I did it dry instead of wet).
I want something like this, but that doesn't slacken over time and can be done dry. Is there a kind of knot you know of that would work?
Thanks,
T.
At the 2:00 minute mark, if you want to jump to it.
The chrysanthemum one particularly mystifies me because it looks like he just loops it around, but somehow it self locks.
https://www.reddit.com/r/Damnthatsinteresting/comments/1t7y63g/handmade_white_chrysanthemum_flower/
https://www.reddit.com/r/oddlysatisfying/comments/15i4b4u/making_traditional_calligraphy_brush/