Cuerda seca (Spanish for "dry cord") is a technique used when applying coloured glazes to ceramic surfaces.
Cuerda seca (Spanish for "dry cord") is a technique used when applying coloured glazes to ceramic surfaces.
When different coloured glazes are applied to a ceramic surface, the glazes have a tendency to run together during the firing process. In the cuerda seca technique, the water-soluble glazes are separated on the surface by thin lines of a greasy substance to prevent them running out of their delineated areas. A dark pigment such as manganese carbonate is usually mixed with the grease to produce a dark line around each coloured area. [1]
The origin of the technique is not known for certain. Many scholars believe that the cuerda seca technique originated primarily in al-Andalus (Islamic Spain and Portugal) in the second half of the 10th century, during the Umayyad period (citing Umayyad-era examples from Suza). [2] [3] [4] [5] Scholar Juan Zozaya argues that the advent of this style in al-Andalus could have been spurred by Chinese ceramics which were imported to the region from an early period. [6] The technique was further advanced during the Taifas period in the 11th century. [3] Preserved fragments of tiles from the late 12th-century minaret of the Kasbah Mosque in Marrakesh, Morocco, have been cited as the earliest surviving example of cuerda seca tilework being used for architectural decoration. [5]
In Central Asia, tiles were manufactured using the cuerda seca technique from the second half of the 14th century. [7] Hans Van Lemmen postulates that these tiles, from the Timurid period (late 14th to 15th centuries), were "earliest development of cuerda seca". [8] The introduction of different coloured glazes is recorded in the mausoleums of the Shah-i-Zinda necropolis in Samarkand. In the 1360s the colours were restricted to white, turquoise and cobalt blue but by 1386 the palette had been expanded to include yellow, light-green and unglazed red. [9] Large quantities of cuerda seca tiles were produced during the Timurid (1370–1507) and Safavid (1501–1736) periods. [10]
In the 15th century Persian potters from Tabriz introduced the technique into Turkey and were responsible for decorating the Yeşil Mosque in Bursa (1419-1424). [11] Within the Ottoman Empire cuerda seca tilework fell out of fashion in the 1550s and new imperial buildings were decorated with underglaze-painted tiles from İznik. The last building in Istanbul to include cuerda seca tilework was the Kara Ahmed Pasha Mosque which was designed in 1555 but only completed in 1572. [12] [13]
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