Carte à gratter

Also known as scraperboard

Scratchboard or scraperboard or scratch art is a form of direct engraving in which the artist scratches off dark ink to reveal a white or colored layer beneath. The technique uses sharp knives and tools for engraving into the scratchboard, which is usually cardboard covered in a thin layer of white China clay coated with black India ink. Scratchboard can yield highly detailed, precise and evenly textured artwork. Works can be left black and white, or colored.