I think the other poster was suggesting that if you washed your urushiol tainted clothes in the washing machine, then all your regular clothes will become contaminated when washing them in the same machine. That's how I read it anyway, I could be wrong, it happens a lot.
It seems difficult to find accurate information about it online. One website tells you to wash it off with plain water and whatever you do, do not take a shower or you will spread it all over your body! I wash my hands with soap or dish detergent first then take a shower and use lots of soap. Lather rinse repeat, lather rinse repeat.
The Conservation Commission of Missouri says "CONTRARY TO POPULAR BELIEF, poison oak is found only in a few counties in extreme southern Missouri. Another common misconception is the belief that poison sumac or shumac grows in Missouri. This shrub or small tree resembles smooth sumac but has never been found in the state."
Do you happen to be in extreme southern Missouri? Seriously, I'm curious.
I never heard of the black stains but it's a popular topic online. Even a poison test I find very interesting.
One means of identifying poison ivy in the field is the ?black spot test.? Leaves are collected (without direct skin contact) and placed on a sheet of white paper. The leaves are crushed and discarded. If the resulting stain turns dark brown or black within a few minutes of exposure to air, this is evidence that the leaves are likely from a Toxicodendron plant quoted from
Yikes! Vines that big I just cut so it kills the rest of the plant, especially if it's killing a tree by shading the leaves. I'll assume you want the stuff GONE not just stop it from spreading.
I'm guessing the softer gloves were for light MIG or TIG welding. TIG gloves are really thin and supple. For gas welding you don't need very heavy gloves either since your hands are often fairly far away from the flame. I don't see how they would be thicker than for arc welding, and arc welding covers a lot of different types of welding. It pretty much means you use electric.
Now that I think of it, the dry cleaning solution is often reused, it could spread the oil to other peoples clothes!
Can't help you there.