In intaglio printmaking, depressions are scratched, cut or etched into a flat metal plate. When the plate is inked and wiped, the ink remains only in the depressions. Printing the plate onto a humid paper with a press creates a side-inverted image.
Printmaking techniques basing on the same principle are engraving and mezzotint (see below).

The development of intaglio printmaking is connected to the beginning paper production in Europe in 1390 and the work of goldsmiths and armourers. Cutting and engraving metal was common for a long time as well as inking these engraved depressions for decoration. From recording designs by rubbing engraved motifs with or without inking onto paper it was only a short step to using this technique as a way of artistic reproduction.

The first copper engravings were done probably around 1430. In engraving, fine lines are cut into a brass or copper plate with burins from steel. Intaglio developed some decades after woodblock printing, resulting from the fact that it was more complicated than woodblock printing, which in addition followed the pre-stage of cutting seals which had already been known for some time. Compared to the popular woodblock prints, intaglio prints found their audience rather among aristocrats or wealthy citizens, probably resulting from the higher refinement in technique and visual impression. Intaglio prints were also in demand as this way art works could be collected at reasonable prices. Compared to woodblock prints, the images shown in the intaglio print were far more secular.

Engraving developed first in the South-Western part of Germany and in Switzerland. Though there were influences on Asian printmaking, intaglio is rather a European printmaking technique. Drawing was part of the goldsmiths training, and thus the first engravers were goldsmiths, today no longer known by name. First outstanding engravers were the "Master of the playing cards" and the "Master E. S." among others.

For a while the technique was practised mainly by artists as Martin Schongauer from Germany and Hendrik Goltzius and Lucas van Leyden from the Netherlands. The engravings of this time were showing both religious and mundane images. While the German artists leaned stylistically closer on the middle age at a higher technical standard, the Italian Renaissance artists as Andrea Mantegna and Maso Finiguerra created prints which appeared more "free".

Bill Harrison (USA), "Mug from the GDR", line etching and aquatint with chin colle (please see below)

In the second half of the 15th century, the technique of drypoint emerged. Lines were scratched into the plate directly with a sharp needle, thus creating a burr on both sides of the line. A first artist using this technique was the "Master of the house book", who was working in Germany between 1465 and 1500. As the emerging burr was compressed again after some printings and only a few copies could be pulled, drypoint was often practised by artists for re-working already cut or etched plates.

As in woodblock printing, Albrecht Dürer (1471-1528) from Nürnberg was an artist of highest significance also in engraving. From travelling in Italy familiar with the Italian Renaissance engravings, he created prints which brought this technique to a completely new level of art.

Temporarily, he also worked in the new technique line etching, emerging in the end of the 15th century. Lines were now not cut or scratched into the plate, but drawn into a wax layer on the plate and later etched in an acid bath. This made drawing much more easy and spontaneous. First artist who were working with line etching were Urs Graf from Switzerland and Daniel Hopfer from Augsburg, Germany. Line etching was also combined with engraving. In the 17th and 18th century, line etching was used by painters and drawers as Rembrandt und Claude Lorrain or later Tiepolo and Piranesi.

Klaus Stuttmann (Berlin), "No Title", line-etching with aquatint

Engraving however was practised since the mid 17th century predominantly by professional engravers. These were mainly ordered by publishers or artists to copy already existing images. Engraving was used for reproducing paintings, for book illustrations or producing maps.

In the mid 17th century also a technique called aquatint developed. It allowed creating even areas of different tones. However it was common only in the 18th century. A master of aquatint was Francisco Goya, who as the Spanish court painter expressed the societies dark side in his "Caprichos".

With the rise of wood engraving in the 19th century and the invention of lithography and photography, copper engraving became less important.

Since the mid 19th century, a change in the evaluation of prints took place and the term of "original print" was born. Printmaking artists confederated in associations. Mostly these were painters, who also made prints, creating their plates by themselves and sometimes even printing them, treating the processes rather creatively. For the first time, prints were signed. At first, artists mainly preferred to create intaglios and lithographs, often in form of book or portfolios on order by publishers. Artist creating these new "original prints" were in France artists of the "Barbizon School" and some of the Impressionists, in Germany Impressionists as Liebermann or Slevogt, also Käthe Kollwitz und later the Expressionists with Beckmann, the "Brücke" artists and many artists who were published by the committed art dealer and publisher Paul Cassirer in Berlin. He also contributed to a new prime of printmaking in Germany by publishing in 1909 Hermann Strucks book "Die Kunst des Radierens" (The Art of Intaglio), which made the technique available to a bigger audience.

Technique

Engraving

Fine lines are cut with steel burins from various profiles into a plate from copper or from brass, which was mainly used in the early years. The burr which emerges on both sides of the cut line is later removed with a scraper.

Klaus Stuttmann (Berlin), "No Title", line-etching with aquatint

Drypoint

Drypoint is the easiest and most direct technique in intaglio. With a sharp needle from steel lines are scratched directly into the plate, thus creating a depression with burrs on both sides. When being inked, the ink remains not only in the depression but also around the burrs. The printed line has a special soft and velvety appearance. As the burrs are compressed during printing, only small editions can be printed.

Line etching or hard ground

The plate is covered with a thin layer of wax or varnish which hardens after drying. By drawing lines with an etching needle the covering layer is removed. During etching in an acid bath the opened areas are eaten by the acid and this way become deeper. The lines thickness and deepness depends on the duration of etching, the chosen acid and the used ground.

Vernis Mou or soft ground

The plate is covered with a thin layer of a special wax which doesn't dry but keeps soft. A thin paper is put onto the laminated plate which can be drawn on with various drawing tools like pencil, crayon or a brush handle. Also objects like leafs can be pressed into the soft ground. During drawing the wax sticks to the paper and the plate's metal surface is uncovered. In the acid bath, these areas are deepened. This technique reproduces the special qualities of the used drawing tools perfectly.

Aquatint

For etching grey tones, a kind of raster is applied to the plate in form of many small acid-resistant grains. In traditional intaglio this is done by melting fine resin or asphalt dust grains onto the plate. Today, also acrylic can be used by spraying it onto the plate.
In the acid bath, the acid bites between these small grains. The longer the plate is being etched, the deeper the depressions between the grains will be, thus holding more ink when being inked and displaying a darker tone when the plate is finally printed. To produce tones, parts of the plate are covered with acid-resistant varnish during etching steps.

Fig.: Aquatint (four plates with five colours), 2003

Open bite

When open areas of the plate are being etched in acid without an aquatint grain, in these areas the plate becomes just thinner. During inking, the ink remains only in the edges of these areas. So areas etched without aquatint show just lines in the final print.

Mezzotint

In mezzotint, the process is rather negative, working from dark to light. The first working step is roughening the plate's surface evenly with a rocking tool. After that, parts of the plate are polished with a scraper, this way levelling the plate's depressions.

Chin colle

Chin colle is a collage techniques. Thin pre-glued paper is positioned on the inked plate. During printing with a press the plate prints onto the paper and at the same time fastens it onto the actual printing paper.

Bibliography

Brown, Kathan: "ink, paper, metal, wood", Chronicle Books, San Francisco, 1996

Mayer, Rudolf: "Gedruckte Kunst", VEB Verlag der Kunst, Dresdnen, 1984

Sotriffer, Kristian: "Die Druckgraphik – Entwicklung, Technik, Eigenart", Schroll & Co, Wien, 1966

Saff, Donald and Sacilotto, Deli: "Printmaking: History and Process", Wadsworth Inc Fulfillment, New York, 1978

Wye, Deborah: "Artists & Prints – Masterworks from the Museum of Modern Art", The Museum of Modern Art, New York, 2004