This Formula Guide can be used to select, mix and match letterpress inks and specify for letterpress printing. Letterpress printers focus on the Uncoated guide to make the best match to their mixed color on their uncoated paper stock.
Mixing tips include using a triple beam scale or a balance or digital scale. Find a good ink knife with a blade at least 1.5″ wide. Use a slab for mixing your inks – a piece of glass works well.
Add inks from the largest percentage to the smallest. Remember that dark inks will have a more intense pigmentation and too much of that color can make your color off, so be conservative when adding ink.
Formula Guide is Edition GP1601A