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The artworks I create are fine art prints, or more specifically, etchings. Although the term 'print' implies that a photographic process is involved, this is not the case with etching. The techniques outlined below describe processes used by printmakers, not printers; this distinction is important, as etchings are not necessarily 'carbon copies' as many people mistakenly believe. My work normally incorporates a combination of etching and collagraph techniques. There are many different grounds (coatings to protect the metal), mark-making techniques and plate preparations that can create different qualities of line, tone and texture on the metal's surface. An alternative approach is to start from the opposite end; to focus on the white areas of an image, rather than on the black lines. If just the highlights of an image are marked/protected onto a plate using small areas of ground, then when the plate is immersed in acid, the rest of the surface is etched, except these protected polished points. Successive applications of ground covering more and more of the plate, interspersed with more etching, create different grades of roughness to the plate… as the more times exposed metal is dipped into the acid, the rougher it goes, and so the more ink it will hold, to produce darker areas within the resulting image. Hard ground in very durable, and so creates clear edges or lines within a plate. On the other hand, white ground is relatively soft, and offers only a temporary protection against the acid, eventually disintegrating to let the acid break through. The extent of this will depend on length of exposure to the acid and how thickly the white ground is applied. So, because of it’s nature, white ground creates softer but more unpredictable marks than hard ground. A collagraph plate differs from an etching plate as texture is built up on the surface of the plate to form a relief, rather than extending below the surface level of the plate like the grooves on an etching plate. So, no acid is involved here, and any waterproof surface will do; I normally use varnished card or thick acetate, and create the image using materials that solidify to form durable 'edges' or texture on the base plate, such as thick acrylic paint, waterproof PVA or moulding paste. Once dry and sealed with varnish, the edges of the relief capture the ink as metal grooves would, which is again transferred onto paper via an etching press. The colour prints that I produce are all slightly different, as I apply ink to the plate in much the same way as one would paint a canvas. So printmaking in this selective way allows for much variation in colour and distribution of ink across the paper; for this reason no two colour prints are the same. Even black and white prints are by no means simple copies; each print is individually hand produced, and there are a finite number of prints taken from each plate. This is partly restricted by the perishability of the metal plate's surface caused by successive runs though the printing press, but also by my wish to keep each image relatively original, and precious. |