/ˈpaʊn.sɪŋ/

Pouncing

noun · transfer technique

What it is

To pounce a design, the artist first pricks small holes along every line of a full-size drawing — the cartoon — using a needle or a pounce wheel. The perforated cartoon is then held flat against the wall, panel, or fabric to be decorated. A small cloth bag of powder, the pounce, is patted along the holes. Powder falls through each perforation and settles on the surface as a trail of fine dots that reproduces the original outline.

The artist then connects the dots by hand, often with charcoal or a thin brush line, before painting. The pounce itself is usually charcoal dust, powdered chalk, or graphite, chosen to contrast with the ground. Because the cartoon is reusable, the same design could be pounced onto both halves of a symmetrical composition, or reused across a workshop — one reason large fresco cycles could be executed at speed by many hands.

Etymology

The verb "to pounce" in this sense derives from pounce, a fine powder — originally powdered cuttlefish bone or sandarac resin — dusted onto surfaces. The word traces through Old French ponce from Latin pumex, pumice. In Italian the technique is called spolvero, from polvere, dust. Cennino Cennini describes pricking and dusting a pattern in Il Libro dell'Arte, his handbook of workshop practice written around 1400.¹

Examples in use

A fresco painter pounces the day's section of a cartoon onto fresh plaster before the surface dries, so the outline is set before painting begins. A sign writer pounces lettering onto a shop fascia to keep the spacing even. An embroiderer pounces a repeating motif along a border of cloth. The method is the direct ancestor of the transfer approaches artists still use today: the free Grid Maker Pro web tool squares a reference in the browser for free forever, while the separate paid AR app registers it straight onto real paper through the phone camera — no pricking or powder required.