I was intoxicated by Xylol once in silkscreen class. When I got home, and investigated it, further, I realized that the old university I attended did not have safety hoods. I got permission to drop the screenprinting, without losing that credit and do woodcut and wood engraving instead (which I did at home!) I did complain to the admins there, and hoods were installed finally after I left (a friend told me).

Now that I am older and wiser, and have peripheral neuropathy, the exposures during those classes, always worry me now.

I did litho, and intalgio also.

I imagine that silkscreening today uses other types of ink and that would be far safer IMO.

Our old litho presses were manual and the stones quite large.
I did most of mine on plate for that reason. But I can remember many of us after an afternoon of pulling lithos, we'd stop at the bathroom before going home, and my car pool partner would get so upset when she couldn't raise her arms to comb her hair!
This didn't bother me so much...because I am quite muscular for a gal, but the others had a hard time with the physical aspects of litho. Also the rollers were huge and heavy.

The intaglio did not do that. I only did 2 collagraphs. I seem to recall using cheesecloth for the color wipes. I made the plates with acrylic polymer and various paper textures. They broke down after 5 prints, because of the sensitive nature of the textures.

I have the two specialities, and my other is medications. Over the years I've seen many commercial printers, with terrible hands, and defatted fingertips, due to the solvents. Your methods are much much safer.

But if you get any numbness or tingling in the feet, consider peripheral neuropathy.

I don't have many slides from those days, converted to PC format, but I do have this color intaglio ...a viscosity print. (done with multiple color using viscosity to separate on the plate so I can pass once thru the press):