When I paint linen I wind the warp and scour it by boiling for a while with a drop of Orvus, some borax and washing soda or baking soda. I don't rinse it, just hang it to dry. I use Procion MX dyes and mix activator in the dyepaint stock right before I start. When I'm ready to do the dyeing I lay the warp out on a table ribbon-candy style and roll the dyepaint in with a brayer. I also sop up excess dye with cotton socks and T-shirts, so I end up with a wild and crazy wardrobe and have come to regard white socks with disdain. I wrap up the painted warp in the plastic that I covered the table with and batch it for a couple of days then rinse everything ad naseum. I don't do long warps, being content with my very old 4.5 yard warping board and I don't do many warps in a summer, maybe 2 or 3. Just enough to keep me dreaming of the next one. Like you, I find the change of color to be the attraction. I think I've been in love with every warp that I have dyed this way!
No it's not the snowflake draft. It's a cousin though. It's on page 48 in Twill Thrills, Frost Crystals. I've been pretty well smitten with it, and have done it in various setts and fibers and I love them all.
Thank you so much! I haven't cut into this yet, or done any finishing. It's still in the admiration phase draped over the back of the couch. It will likely be a runner or towels someday. The finishing of this will make it into an amazing piece of cloth. The pattern will be more pronounced and the singles weft will glow after the final pressing. Whether I use the cold mangle or just a regular iron, there will be a lovely sheen to it. It will also become softer. I've been having a splendid time painting and weaving linen (and other fibers as well) warps, if you haven't tried dyeing yet I'd recommend it highly!