colour litho tip etc

Here's a tip if you screw up while printing colour off a litho stone. If you forgot to wash out the ink when saving the stone for another day to continue printing, if it's not too late you can use lacquer thinner instead of lithotine to get it out. But use really good ventilation or a mask because it evaporates so fast and is so toxic!
In general:
- don't forget to rub in your colour ink with a little lithotine instead of asphaltum when at the press ready to print
- Afterwards, use water and kimwipes to wash off the gum/extra ink and do it quickly because the water might burn away your drawing. Then do a few fast passes.
Tomorrow I'll try to get my ass into school and do the second etch of my stone. Maybe I'll include a picture of it so far.

some stone litho info

I'm a monitor at a print shop and specialize in stone and plate lithography so sometimes I'll talk about techniques and such that I want to remember.
Today I learned the proper way to take a break in the middle of printing off a stone. Once you've pulled your BAT, give it two passes of ink and then gum down the stone with a sponge. Then you can take your coffee break and when you come back, just wash off the gum really well with water and then continue printing.
Later on, I'll talk about printing in colour off the stone for multicolour prints (in my case 4). I'm a bit fuzzy on the details since I generally work in B&W.