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Cloisonné is an ancient technique for decorating metalwork objects, in recent centuries using vitreous enamel, and in older periods also inlays of cut gemstones, glass, and other materials. The resulting objects can also be called cloisonné. The decoration is formed by first adding compartments (cloisons in French) to the metal object by soldering or glueing silver or gold wires or thin strips placed on their edges. These remain visible in the finished piece, separating the different compartments of the enamel or inlays, which are often of several colors. Cloisonné enamel objects are worked on with enamel powder made into a paste, which then needs to be fired in a kiln.

The technique was in ancient times mostly used for jewellery and small fittings for clothes, weapons or similar small objects decorated with geometric or schematic designs, with thick cloison walls. In the Byzantine Empire techniques using thinner wires were developed to allow more pictorial images to be produced, mostly used for religious images and jewellery, and now always using enamel. By the 14th century this enamel technique had spread to China, where it was soon used for much larger vessels such as bowls and vases; the technique remains common in China to the present day, and cloisonné enamel objects using Chinese-derived styles were produced in the West from the 18th century.


Early cloisonné techniques

Cloisonné first developed in the jewelry of the ancient Near East, typically in very small pieces such as rings, with thin wire forming the cloisons. In the jewellery of Ancient Egypt, including the pectoral jewels of the Pharoahs, thicker strips form the cloisons, which remain small. In Egypt gemstones and enamel-like materials sometimes called "glass-paste" were both used. Cloisonné spread to surrounding cultures and a particular type, often known as garnet cloisonné is widely found in the Migration Period art of the "barbarian" peoples of Europe, who used gemstones, especially red garnets, as well as glass and enamel, with small thick-walled cloisons. Red garnets and gold made an attractive contrast of colours, and for Christians the garnet was a symbol of Christ. This type is now thought to have originated in the Late Antique Eastern Roman Empire and to have initially reached the Migration peoples as diplomatic gifts of objects probably made in Constantinoplemarker, then copied by their own goldsmiths. Glass-paste cloisonné was made in the same periods with similar results - compare the gold Anglo-Saxon fitting with garnets (right) and the Visigothic brooch with glass-paste in the gallery. Thick ribbons of gold were soldered to the base of the sunken area to be decorated to make the compartments, before adding the stones or paste. Sometimes compartments filled with the different materials of cut stones or glass and enamel are mixed in the same object, as in the purse-lid from Sutton Hoomarker. In the Byzantine world the technique was developed into the thin-wire style suitable only for enamel described below, which was imitated in Europe from about Carolingian period onwards.

Cloisonné enamel

The earliest surviving cloisonné pieces are rings in graves from 12th century BC Cyprusmarker, using very thin wire. Subsequently enamel was just one of the fillings used for the small thick-walled small cloisons of the Late Antique and Migration Period style described above. From about the 8th century, Byzantine art began again to use much thinner wire more freely to allow much more complex designs to be used, with larger and less geometric compartments, which was only possible using enamel. These were still on relatively small objects, although numbers of plaques could be set into larger objects, such as the Pala d'Oro, the altarpiece in Saint Mark's Cathedral, Venicemarker. Some objects combined thick and thin cloisons for varied effect. The designs often (as at right) contained a generous background of plain gold, as in contemporary Byzantine mosaics. The area to be enamelled was stamped to create the main depression, pricked to help the enamel adhere, and the cloisons added.

From Byzantium or the Islamic world the technique reached Chinamarker in the 13-14th centuries; the first written reference is in a book of 1388, where it is called "Dashi ('Muslim') ware". No Chinese pieces clearly from the 14th century are known, the earliest datable pieces being from the reign of the Xuande Emperor (1425-35), which however show a full use of Chinese styles suggesting considerable experience in the technique. It was initially regarded with suspicion by Chinese connoisseurs, firstly as being foreign, and secondly as appealing to feminine taste. However by the beginning of the 18th century the Kangxi Emperor had a cloisonné workshop among the many Imperial factories. The most elaborate and highly-valued Chinese pieces are from the early Ming Dynastymarker, especially the reigns of the Xuande Emperor and Jingtai Emperor (1450-57), although 19th century or modern pieces are far more common. The Chinese industry seems to have benefited from a number of skilled Byzantine refugees fleeing the Fall of Constantinople in 1453. In Chinese cloisonné blue is usually the predominant colour, and the Chinese name for the technique, jingtailan ("Jingtai blue ware"), refers to this, and the Jingtai Emperor. Quality began to decline in the 19th century. Initially heavy bronze or brass bodies were used, and the wires soldered, but later much lighter copper vessels were used, and the wire glued on before firing.

In Byzantine pieces, and even more in Chinese work, the wire by no means always encloses a separate color of enamel. Sometime a wire is used just for decorative effect, stopping in the middle of a field of enamel, and sometimes the boundary between two enamel colors is not marked by a wire. In the Byzantine plaque at right the first feature may be seen in the top wire on the saint's black sleeve, and the second in the white of his eyes and collar. Both are also seen in the Chinese bowl illustrated at top right.

Chinese cloisonné is the best known enamel cloisonné, though the Japanese produced large quantities from the mid-19th century, of very high technical quality. Russian cloisonné from the Tsarist era is also highly prized by collectors, especially from the House of Fabergé or Khlebnikov, and the French and other nations have produced small quantities. Chinese cloisonné is sometimes confused with Canton enamel, a similar type of enamel work that is painted on freehand and does not utilize partitions to hold the colors separate.

In medieval Western Europe cloisonné enamel technique was gradually overtaken by the rise of champlevé enamel, where the spaces for the enamel to fill are created by making recesses (using various methods) into the base object, rather than building up compartments from it, as in cloisonné. Later techniques were evolved that allowed the enamel to be painted onto a flat background without running. Plique-à-jour is a related enameling technique which uses clear enamels and no metal backplate, producing an object that has the appearance of a miniature stained glass object - in effect cloisonné with no backing.

Other ways of using the technique have been developed, but are of minor importance. In 19th century Japan it was used on pottery vessels with ceramic glazes, and it has been used with lacquer and modern acrylic fillings for the cloisons. A version of cloisonné technique is often used for lapel badges, logo badges for many objects such as cars, including BMW models, and other applications, though in these the metal base is normally cast with the compartments in place, so the use of the term, though common, is questionable.

A large collection of 150 Chinese cloisonné pieces is at the G.W.marker Vincent Smith Art Museummarker in Springfield, Massachusettsmarker.

Modern cloisonné enamel process

Adding cloisons according to the pattern previously transferred to the workpiece

First the object to be decorated is made or obtained; this will normally be made by different craftsmen. The metal usually used for making the body is copper, since it is cheap, light and easily hammered and stretched, but bronze, silver or other metals may be used. Cloisonné wire is made from pure silver or gold and is usually about .010 x .040 inches in cross section It is bent into shapes that define the colored areas. The bends are all done at right angles, so that wire does not curve up. This is done with small pliers, tweezers, and custom-made jigs. The cloisonné wire pattern may consist of several intricately constructed wire patterns that fit together into a larger design. Solder can be used to join the wires, but this causes the enamel to discolor and form bubbles later on. Instead, the base metal is fired with a thin layer of clear enamel. The cloisonné wire is glued to the enamel surface with gum tragacanth. When the gum has dried, the piece is fired again to fuse the cloisonné wire to the clear enamel. The gum burns off, leaving no residue.

Vitreous enamels in the different colors are ground to fine powders in an agate mortar and pestle, then washed to remove the impurities that would discolor the fired enamel. Each color of enamel is prepared this way before it is used and then mixed with a very dilute solution of gum tragacanth. Using fine spatulas, brushes or droppers, the enameler places the fine colored powder into each cloison. The piece is left to dry completely before firing, which is done by putting the article, with its enamel fillings, in a kiln. The enamel in the cloisons will sink down a lot after firing. This process is repeated until all cloisons are filled.

Three styles of cloisonné are most often seen: concave, convex, and flat. The finishing method determines this final appearance. With concave cloisonné the cloisons are not completely filled. Capillary action causes the enamel surface to curve up against the cloisonné wire when the enamel is molten, producing a concave appearance. Convex cloissoné is produced by overfilling each cloison, at the last firing. This gives each color area the appearance of slightly rounded mounds. Flat cloisonné is the most common. After all the cloisons are filled the enamel is ground down to a smooth surface with lapidary equipment, using the same techniques as are used for polishing cabochon stones. The top of the cloisonné wire is polished so it is flush with the enamel and has a bright lustre. Some cloisonné enamel is electroplated with a thin film of gold, which will not tarnish as silver does.

Examples of cloisonné work


Gems, glass


File:Pectoral of Senusret II by John Campana.jpg|Pectoral of Senusret II, from his daughter's grave. Cloisonné inlays on gold of carnelian, feldspar, garnet, turquoise, lapis lazuli.Image:Fíbula aquiliforme (M.A.N. Madrid) 01.jpg|Visigothic 6th c. eagle-fibula, from Spainmarker with glass-paste inlay.Image:Cloisonneqing.jpg|Qing Dynastymarker cloisonné dishImage:Qing Dynasty Cloisonne Stupa.jpg|A Chinese cloisonne stupa dated to the reign of the Qianlong Emperor (1735-1796)Image:Carnegie Museum of Art - candlesticks 2.JPG|Chinese enameled and gilt candlestick from the 18th or 19th century, Qing DynastyImage:St George, Georgia (15th c).jpg|St George slaying the Dragon, 15th century cloisonné enamel on gold. (National Art Museum of Georgiamarker).Image:CPPaternAndCloisonsDetail.jpg|Detail showing pattern and partially completed cloisonsImage:Cloisonnebeads.jpg|Modern cloisonné enamel beadsImage:Chinese Cloisenne.jpg|Modern Chinese cloisonné enamelImage:BMW cloisonne .jpg|BMW "cloisonné" badge on a 1974 CS BMW E9Image:Harley-DavidsonDynaLowRider2003.JPG|Harley-Davidson "100th Anniversary" fuel tank cloisonné on a 2003 Dyna Low Rider


  1. In French "cloison" is a general word for "compartment" or "partition", in English the word is normally only used in the specialized context of cloisonné work, and apparently dentistry (OED, "Cloison")
  2. Clark, 67-8. For an example see Pectoral and Necklace of Sithathoryunet Metropolitan Museum
  3. Egyptian Paste article from Ceramics Today;. See also Egyptian faience. There are disputes as to whether, or when, such materials were fired with the object, or fired separately first and then cut into pieces to be inlaid like gems. It seems both methods may have been used. See Day, Enamelling, 7-10
  4. Late Antiquity, 464. See here for scientific materials analysis
  5. Harden 72-3
  6. Youngs, 173
  7. Green, 87-88
  8. Gardner. British Museum, Sutton Hoo purse-lid
  9. Michaelides, Panicos, The Earliest Cloisonne Enamels from Cyprus, article from Glass on Metal, the Enamellist's Magazine, April 1989, online, see also
  10. The date of the change is uncertain, partly because Early Byzantine enamels were much forged in 19th century Russia, rather confusing historians.
  11. Ross, 217
  12. Ross 99, describing what appear to be trainee pieces in bronze, never completed.
  13. Sullivan, 239. See also Dillon ref below.
  14. Dillon, 58-59
  15. Orange Coast, 95
  16. V&A
  17. Carpenter
  18. Enamels Enameling Enamelists G.L. Matthews pp 146-147


  • Carpenter, Woodrow, Cloisonné Primer, from Glass on Metal, the Enamellist's Magazine, June 1995, online
  • Clark, Grahame, Symbols of Excellence: Precious Materials as Expressions of Status, Cambridge University Press, 1986, ISBN 0521302641, 9780521302647, google books
  • Cosgrove, Maynard Giles, The enamels of China and Japan, champlevé and cloisonné, London, Hale, 1974.
  • Dillon, Michael, China: a historical and cultural dictionary, Routledge, 1998, ISBN 0700704396, 9780700704392, Google books
  • Gardner's Art Through the Ages, [74024]
  • Green: Charles Green, Barbara Green, Sutton Hoo: the excavation of a royal ship-burial, 2nd Edition, Seafarer Books, 1988, ISBN 0850362415, 9780850362411, Google books
  • Harden, Donald B., Dark-age Britain, Taylor & Francis, 1956
  • Late antiquity: a guide to the postclassical world, various authors, Harvard University Press reference library, Harvard University Press, 1999, ISBN 0674511735, 9780674511736, Google books
  • Orange Coast Magazine September 1982
  • Ross, Marvin C., Catalogue of the Byzantine and Early Medieval Antiquities: Jeweelry, Enamels, and art of the Migration Period, Dumbarton Oaksmarker, 2006, ISBN 088402301X, 9780884023012, Google books
  • Sullivan, Michael, The arts of China, 4th edn, University of California Press, 1999, ISBN 0520218779, 9780520218772, Google books
  • Susan Youngs (ed), "The Work of Angels", Masterpieces of Celtic Metalwork, 6th-9th centuries AD, 1989, British Museum Press, London, ISBN 0714105546

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