Why Wet Ink Travels Beyond the Page
A dark, heavily loaded stroke leaves more liquid on the paper than a thin one. Until that liquid dries, a brush, sleeve, or the side of a hand can pick it up and carry it elsewhere. The desk becomes part of the work surface simply because the paper is resting on it—and a small leak, wet edge, or transferred mark can leave color behind.
The Smudge Is a Consequence of the Process
Ink can also soak through paper or spread outward where the sheet is especially absorbent. On a smooth desk, a stray drop may remain on top; on a porous surface, it can sink in and become harder to remove. Using a blotter beneath the page and keeping the writing hand clear of fresh strokes can limit the mess, but heavy, wet marks need time before they are safe to touch.
That is why ink work often leaves evidence beyond the finished page: the same wetness that makes a stroke bold also makes it easy to transfer.
