Geez, thanks for all that!
The question I've always had with the Waterless A/B was the 30-40% yield loss-where does it all go? What do you put it down to, the novel basing process or the fact that waxes and gak is coating the pfed.hcl?
I think it's glues in part atleast...swim has seen a thinish fudgish white sticky gak not let go of ANY dye visibally, to a solvent the dye is freely soluble in, even with good stirring!
With the tetra trap, and PEG following through I agree the water is the problem, and maybee toluene holding on to some water.
It's easy to use too much H2O aswell. You'd think that the H2O was full of enough gak, aswell as the tetra to not drift away with the NP, but I don't think it's a given...
Heating the water is always going to cause a cellulose problem aswell. That's why for that problem, a long acetone soak, a boil incorporated in to this soak to assist dissolution, to let the tone marry with as much of the stuff it can dissolve as possible.
With the tetra trap, for swim personally, he'd remove as much as he could with TCE, then use tetra as the actual NP as it would hold no water at all.
Even better, as a second NP, with toluene, xylene or naptha if you like on top. As an Orange escaping measure...
Then the NP's (both...at the same time) need to bee washed with water. To remove orange oil.
Because even if orange is slightly soluble in NP as you said once, water washes will still remove it.
To add water to the tetra trap he may add the water with a sprayer.
Or the alcohol, or alcohol + tone, we'll find out in the new year i guess?
I can carry on worse.