Parker Quink ink
1/2 page 14" x 5 1/2"
Parker Quink ink, launched in 1931 by the Parker Pen Company, was a revolutionary quick-drying, general-purpose fountain pen ink that became a huge success, named from "quick" and "ink". Its development involved extensive research (over 1000 experiments), incorporating isopropyl alcohol for fast drying and solvency, a feature that later inspired the Parker 51 pen, though the ink was initially too harsh for some pens before Solvex was added to clean them as you wrote. A common myth credits Filipino botanist Francisco Quisumbing, but reliable sources link the ink's development to Parker's internal research, though a different Quisumbing was a real Filipino chemical engineer.