Unlike most prints, this technique produces unique copies each and every time. It is favoured by artists because of the organic results and also offers unique textural quailties unlike other printing techniques.
Artists can either work positively or negatively. In the positive process - the artist paints or draws a design in ink or oil paint onto a flat polished surface such as glass or metal and the image is then simply transferred onto paper by pressing together. In the negative process - the surface is entirely covered in ink and using cloths and rags ink is removed from desired areas, thus creates depth and differing tones in an image.