I am getting some warp chains ready for painting. I thought I would show you the choke ties I use for this and why I use them instead of the nylon looper. You don't want your choke ties to be to tight, or the dye will not get to all the areas.
I will be putting my 'tence' warp chain in liquid and don't want to loose the cross or get it too tangled. So I will use some other thread, usually something bigger, and do a three-way divide. This usually keeps the fibers in some sort of order.
If I am just going from warping board to loom, I will use the nylon loopers. But they 'grip' to tight to use when painting your warp. Or at least that is what I have found out.