'Cloisonné', an ancient
metalworking technique, is a multi-step
enamel process used to produce
jewelry,
vases, and other decorative items. Objects produced by this process are also called ''cloisonné''.
History
Cloisonné first developed in the
Near East. It spread to the
Byzantine Empire and from there along the
Silk Road to
China. Chinese cloisonné is probably the most well known and ubiquitous. Russian cloisonné from the Tsarist era is highly prized by collectors. 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. Before the communist takeover of mainland China, cloisonné production there was particularly fine and was employed for adorning everything from images of Mahayana Buddhist deities to
opium pipes.
[1]
Cloisonné process

Adding cloisons according to the pattern previously transferred to the workpiece

Detail showing pattern and partially completed cloisons

Adding frit with dropper after sintering cloisons. Upon completion the piece will be
fired, then ground (repeating as necessary) then polished and electroplated
★ First, the artist forms
metal (such as
copper or
brass) into the shape of the finished object.
★ A paper pattern and a pencil are used to transfer a design to the metal object.
★ Partitions (
French: ''cloisons'') that act as color-separators are applied according to the transferred pattern and are held in place by a soldering paste (this is finely divided metal of low melting temperature in a flux paste). The partitions are bent and cut to length from flat wire stock (usually by hand using simple pliers) while the paste is applied with a small brush.
★ Heating the piece in an oven permanently affixes the partitions to the base metal by melting the solder. The piece is then allowed to cool.
★
Frit (
glass crushed to a powder) in a water-based paste is painted into the partitions using an annotated pattern similar to the "
paint by numbers" craft technique. After the frit has dried, firing in an oven melts it onto the metal. Several repetitions of the process may ensue to build up the coatings to the height of the partitions. Various colors and transparencies may be used in combination within a single partition to obtain the desired artistic effect.
★ The glass and a portion of the cloisons are ground and polished to form an even and smooth surface.
★ The exposed metal is
electroplated with a thin film of gold to prevent corrosion and to give a pleasing appearance.
Beads
Cloisonné beads also occur commonly; and one use of Chinese cloisonné
beads involves making jewelry.
Other examples
★ The
Pala d'Oro,
Saint Mark's Cathedral, Venice
★ The
Alfred Jewel, a 9th-century Anglo-Saxon ornament
See also
★
Vitreous enamel
★
Champlevé enamel
External links
★
An Interview with Contemporary Enamel Artist Laura Zell Demonstrating Basic Cloisonné Techniques
Gallery