Acid-free

Using acid-free mount boards prevents acid burns (yellowish-brown burn lines) from appearing on artworks over time.

Similar Posts

  • Pigment-based inks

    Pigment, unlike dye, is a powder made up of tiny granules that will not dissolve completely in solution. This means that pigment-based inks leave particles of pure colour bonded to the surface of the paper that they are printed on. The resulting images can thus appear very rich and physical, densely saturated in colour –…

  • Screen printing

    A stencil is made up for each colour of the image and put over a fine fabric mesh that is stretched over a metal frame. The coloured ink is spread over the mesh and stencil and the ink falls through the stencil to the underlying material (usually an art paper) to produce the image. The…

  • Heliogravure or photogravure

    Also known as heliogravure, photogravure is arguably the finest photomechanical means of reproducing a photograph in large editions. Copper plates are acid-etched directly from an original silver print; the etched areas then hold differing amounts of ink in order to correspond to the tones of the original print. If prints remain untrimmed, the impression of…

  • Photogram

    A photogram is a photograph made without a lens or camera: objects are placed directly on top of a sheet of photographic paper which is then exposed to light. Where the objects obstruct the light, the paper remains unexposed (light in tone), while the rest darkens through exposure.